Yes, the federal solar tax credit can be carried forward to future tax years if you don’t use it all in the year you install your solar panels.
According to a 2024 EnergySage analysis, over 50% of U.S. homeowners who installed solar panels couldn’t claim their full 30% tax credit in one year, risking thousands in unclaimed savings without a carryforward plan. In this article, you’ll learn:
- 🔄 How the federal solar tax credit carryforward works and why unused credits aren’t lost if your tax bill is too low in the first year.
- ⚠️ The #1 mistake to avoid when claiming the solar credit, so you don’t miss out on thousands of dollars or expect money that won’t come.
- 📊 Real-life examples of using the solar tax credit over multiple years, with simple breakdowns showing how credits roll over from year to year.
- ⚖️ Key differences between federal and state solar tax credits (and between residential vs. business credits) so you understand varying carryover rules and time limits.
- 🔑 Plain-English explanations of tax terms like nonrefundable credit, tax liability, and carryforward — giving you a quick Solar Tax Credit 101 to make everything clear.
Yes – You Can Carry Forward Unused Solar Tax Credits
The federal Residential Clean Energy Credit (commonly known as the solar tax credit) allows you to carry forward any unused portion of the credit to future tax years. In practical terms, this means if your solar credit is larger than the amount of federal income tax you owe for the year you installed your solar panels, the leftover credit isn’t wasted.
Instead, the excess credit rolls over to the next year’s tax return and can be used to reduce your taxes then. This carryforward process can continue year after year until you’ve claimed the full value of your solar credit.
This generous rule exists because the solar tax credit is nonrefundable. A nonrefundable credit can reduce your tax bill to zero, but it cannot take your tax below zero (no negative refunds will be issued from it). Before carryforward was allowed, any unused credit would simply go unclaimed if it exceeded your tax liability.
To prevent that loss, the law explicitly permits you to apply the unused portion in future years when you do owe tax. Bottom line: you will eventually get the full 30% credit value, even if it takes multiple years of tax filings to use it up.
It’s important to note that you must owe federal taxes in a future year to make use of the carried-forward credit. If you consistently owe little to no tax (for example, due to low income or very high deductions), the credit will carry forward indefinitely but won’t turn into a refund check.
The carryforward provision gives you a rain check for your tax savings. Instead of losing out on the credit, you get to redeem it against taxes in later years when you have a tax bill to offset. This ensures that taxpayers with smaller tax liabilities can still benefit fully from investing in solar, just over a longer period.
Common Solar Tax Credit Mistakes and Pitfalls to Avoid
Even though the solar tax credit carryforward is straightforward, many people make mistakes in understanding or planning for it. Avoid these common pitfalls:
Mistake #1: Assuming the Solar Credit is a Cash Rebate
One of the biggest misconceptions is treating the 30% solar tax credit like it’s an automatic rebate or a check from the government. It’s not – it’s a credit against your income tax. This means you only get its value by reducing taxes you owe. If you expect a $10,000 refund purely from the solar credit but you had no tax liability, you’ll be disappointed. Avoid this mistake by understanding that the credit first offsets your tax bill, and any remainder carries forward rather than coming as a check.
Mistake #2: Not Planning for a Carryforward
Homeowners often finance their solar installation with the expectation of using the tax credit to pay down a loan quickly. Solar installers or lenders might even structure loan payments assuming you’ll get the full credit amount back at tax time. If your tax liability isn’t high enough to use the entire credit in one year, you won’t get the full credit as a refund immediately. Failing to plan for this can lead to a cash shortfall. To avoid this: estimate your approximate tax liability before you buy solar. If, for example, you’re getting a $6,000 credit but only typically owe $3,000 in taxes, plan for the fact that about $3,000 of the credit will carry over to next year. This way, if you took a loan expecting to pay it off with the credit, you’ll know to save other funds for the portion of the credit that won’t come until later years.
Mistake #3: Leasing Panels and Expecting a Credit
Make sure you understand who actually gets to claim the solar tax credit. If you sign a solar lease or a Power Purchase Agreement (PPA) with a solar company, you are not the owner of the system – the company is. Only the owner can claim the 30% federal credit. Many homeowners have been surprised to learn that by leasing their panels, they gave up the right to this tax break (the leasing company uses the credit instead). To avoid this pitfall, purchase the system (either upfront or with a loan) if you want to claim the credit. Leasing might spare you the upfront cost, but you’ll miss out on the tax credit and the ability to carry it forward for your own benefit.
Mistake #4: Missing the Installation Deadline
While not directly about carryforwards, this mistake can cost you the entire credit. The federal solar tax credit program is not permanent in its full form – it’s set to phase down after 2032 and expire for residential systems by 2035 (barring new legislation). If you wait too long and install solar after the credit expires, there will be no credit to claim (and thus nothing to carry forward).
Similarly, some states have deadlines or caps on their incentives. Avoid this by keeping an eye on federal timelines and your state’s rules. As of now, you need to have your system operational by the end of the credit’s availability to lock in the credit. If you install in the final year of the credit, you can still carry forward any unused portion into later years – but if you install after the cutoff, you’ve lost the opportunity entirely. Don’t procrastinate on going solar if you’re counting on this tax benefit.
Mistake #5: Forgetting to Claim the Credit Properly
Believe it or not, a simple oversight in filing can cause problems. To claim the solar tax credit and any carryforward, you generally need to file Form 5695 with your federal tax return. This form calculates the credit and tracks any carryover to future years. If you or your tax preparer forget to include it, you might miss out on claiming the credit for that year, or fail to record the carryforward.
Always double-check that your tax return includes the solar credit form in the year you first claim it. In subsequent years, if you carry forward a remaining credit, ensure it’s noted and applied. Good record-keeping is key – save documentation of your installation and prior year credit usage, so you (or your accountant) know how much credit is left to use each year.
By sidestepping these mistakes, you’ll maximize your savings and ensure the solar tax credit process goes smoothly. Knowing the rules and planning ahead will keep you from leaving money on the table.
Solar Tax Credit Carryforward in Action (3 Examples)
Nothing explains the carryforward concept better than a few simple examples. Below are three common scenarios showing how a solar tax credit might be used over one or multiple years. Each scenario assumes a 30% federal solar tax credit on a new solar installation.
Scenario 1: Credit Used in One Year (No Carryforward Needed)
Suppose you installed a solar system that gives you a $9,000 tax credit, and you have a tax liability of $9,000 or more for that year. In this case, you can use the entire credit at once to reduce your taxes. There’s no leftover credit to carry to future years. Here’s how it breaks down:
| Tax Year | Outcome |
|---|---|
| 2025 | Owed $9,000 in federal tax. Claimed $9,000 solar tax credit, reducing tax owed to $0. All credit used in 2025; $0 remains for carryforward. |
In Scenario 1, you effectively utilized the full credit immediately. Your tax was high enough to absorb the whole credit, so you get the maximum benefit in one year (either by owing $0 in tax or by getting a larger refund if you had withholding). No carryover occurs here since nothing was left unused.
Scenario 2: Credit Larger Than Tax Bill (Carryforward to Next Year)
Now let’s say your new solar installation also yields a $9,000 credit, but you only owe $4,000 in tax for the installation year. You can use $4,000 of the credit to bring your tax owed to zero for that year. The remaining $5,000 of credit doesn’t vanish – it carries forward to the next tax year. Assume the following year you owe at least $5,000 in taxes, allowing you to use the rest of the credit then:
| Tax Year | Credit Usage & Carryforward |
|---|---|
| 2025 | Owed $4,000 in federal tax. Applied $4,000 of solar tax credit to eliminate 2025 tax bill. $5,000 of credit left unused is carried forward to 2026. |
| 2026 | Owed $5,000 in federal tax. Applied $5,000 carryforward credit to reduce 2026 tax bill to $0. Credit fully used by end of 2026; $0 remains to carry forward further. |
In Scenario 2, you needed two years to use the entire credit. The key takeaway is that the unused portion ($5,000 in this case) was preserved and utilized the next year. You didn’t lose out on the extra credit – it simply provided a benefit one year later. Many solar owners fall into this scenario because the credit can be large relative to their tax obligation in a single year.
Scenario 3: Multiple Years to Use Credit (Very Low Tax Liability)
Consider a homeowner on a fixed income or someone whose tax liability is only $3,000 per year. They install a solar system and qualify for a $9,000 credit. Because they owe so little each year, it will take them several years to fully use the credit. Here’s a possible timeline:
| Tax Year | Credit Usage & Carryforward |
|---|---|
| 2025 | Owed $3,000 in tax. Applied $3,000 of the credit to cut 2025 tax to $0. $6,000 credit remains and carries to 2026. |
| 2026 | Owed $3,000 in tax. Applied $3,000 of carryforward (now 2026 tax $0). $3,000 credit remains for 2027. |
| 2027 | Owed $3,000 in tax. Applied $3,000 final portion of credit (tax $0). $0 credit left after 2027 (fully utilized over three years). |
Scenario 3 demonstrates that even if it takes three (or more) years, you will eventually be able to use the entire solar tax credit as long as you continue to have at least some tax liability each year. The credit rolled over year after year, each time cutting the tax bill down until it was exhausted.
If our homeowner in this scenario continued to have very low or zero tax liability every year (for instance, if they had tax credits from other sources or very low income), the unused solar credit would keep carrying forward indefinitely. It would only be used in a year where they have enough tax due to apply the credit. In a worst-case scenario, if they never owe any tax in the future, the credit would remain unused. But for most people, eventually there’s some tax to pay (retirement account withdrawals, investment income, etc.), and that’s when the accumulated credit can finally be applied.
These examples underscore how flexible the solar tax credit carryforward is. Whether you use it in one shot or spread over a decade, the important part is that you won’t lose the credit just because you couldn’t use it all immediately. It’s designed to accommodate different financial situations, so both high- and low-income solar adopters can reap the full benefit over time.
Backed by Tax Law: Carryforward Is Allowed by the IRS
You might wonder, how do we know we can carry the credit forward? The ability to carry forward unused solar tax credits is written into U.S. tax law and confirmed by IRS guidelines. Specifically, the federal tax code (Internal Revenue Code Section 25D) includes a clause called “Carryforward of unused credit.” It explicitly states that if your allowable solar credit is more than your tax liability for the year, the excess shall be carried to the next taxable year. In plain language, the law guarantees you won’t forfeit the remainder if you couldn’t use it all.
The IRS has also reinforced this in its official instructions and Q&A guidance. For example, IRS instructions for Form 5695 (the form used to claim the residential energy credit) make it clear that any unused portion of the credit can be carried over to future years. IRS informational releases and taxpayer Q&As have consistently answered the question “Can I carry forward unused solar credits?” with a “Yes – you can apply the unused credit to your next year’s taxes.” There’s no specific time limit written in the law for the residential solar credit carryforward. This means you can continue carrying it forward year after year until it’s used up, no matter if that’s 2 years or 10 years down the line.
It’s worth highlighting that not all tax credits enjoy this carryforward provision. For instance, the Energy Efficient Home Improvement Credit (for things like insulation or windows) cannot be carried forward – if you don’t use it in the year you made the improvements, it’s lost. In contrast, the solar investment tax credit (for residential solar) is more flexible. Congress and the IRS structured it this way to encourage long-term investment in renewable energy: they don’t want a homeowner with low taxes to miss out on an incentive just because of their tax situation in one year. The carryforward is essentially a promise that you will get the full 30% benefit eventually, as long as you have taxes to offset in the future.
Keep in mind that while federal law has no cap on carryforward years for the personal solar credit, the credit itself is tied to having a qualifying solar installation during the eligible period. Right now, that period runs through 2034 (with a step-down in percentage after 2032). If you install solar while the credit is in effect, you lock in your credit amount.
Even if the credit program sunsets or is reduced in the future, your earned credit remains valid to carry forward. For example, if you install in 2034 (when the credit is 22%) and you can’t use it all that year, you can still carry the leftover into 2035 and beyond. The IRS will honor the carryforward because it’s based on the law in effect when you installed the system. In short, existing credits don’t disappear overnight just because the policy changes. They become a sort of credit “legacy” that you can continue to claim until exhausted.
Finally, to actually utilize a carryforward, you or your tax preparer will need to keep track of it. The IRS doesn’t automatically apply your unused credit in the next year without you indicating it. How do you do this? When you fill out Form 5695 for the year you first claim the credit, any unused amount will be calculated on that form. In the next tax year, you’ll fill out the form again, and it has a line for prior year carryforward credits to bring into the calculation. It’s a seamless process as long as you remember to include it. The IRS’s records, combined with your tax forms, ensure that the credit carryover is accounted for. If you use tax software or an accountant, they will usually prompt you for any carryover credits from the previous year.
Federal vs State Solar Tax Credits (Different Carryover Rules)
The discussion so far has focused on the federal solar tax credit. But many U.S. states have their own incentives or tax credits for going solar, and their rules can differ significantly. It’s crucial to distinguish federal vs. state tax credits, especially if you’re expecting a state benefit – because carryforward provisions may not be as generous at the state level.
Federal Credit (U.S. nationwide): The federal residential solar tax credit (30% through 2032) has no dollar cap and, as explained, no limit on carryforward years. If you can’t use it all in the installation year, you roll it over to subsequent years until it’s used up (indefinitely). There’s also no income restriction; even if your income is modest, you still qualify (you just carry forward the credit if you can’t use it immediately).
State Credits: Some states offer a state income tax credit for solar installations, usually a percentage of the project cost or a fixed amount. Each state sets its own rules for how that credit can be used. Many state credits do allow carryover of unused credit, but often with limitations. For example:
- New York has a popular residential solar tax credit (25% of system cost up to $5,000). If you install solar in New York and your state tax liability is too low to use the full credit in one year, New York allows you to carry forward the unused amount for up to five years. After five years, any remaining credit would expire. So, New York gives a multi-year window to capture the benefit, but not an unlimited one.
- South Carolina provides a state solar credit (25% of eligible costs, capped annually). If your credit exceeds the cap or your tax liability, you can carry forward the excess for up to ten years in South Carolina. In other words, you have a decade to use the full state credit before it’s forfeited.
- Arizona offers a flat amount tax credit (up to $1,000) for residential solar. If you can’t use it all due to low tax, Arizona law permits carryforward for up to five years as well.
- On the other hand, some states have credits or rebates that might not carry forward at all (or they might be refundable instead). For instance, a few states had upfront rebates or performance-based incentives in lieu of tax credits, which are handled differently (often not via the tax return at all).
The key point is that state-level solar incentives vary widely. If you’re in a state with its own solar tax credit, you should check that state’s tax agency guidance or consult a tax professional familiar with local rules. Many states mirror the federal concept of carryover (since they want to encourage full use of the incentive), but they typically impose a year limit, such as 5 years or 10 years, rather than an indefinite carryforward. Some states also cap the total credit amount, meaning even if your system is very expensive, the credit might max out at a certain dollar figure (which could inherently limit how much carryforward is needed). Additionally, state credits apply against state income tax, which for most people is much lower than federal tax. Thus, it’s actually pretty common to need to carry forward a state solar credit because the credit might be larger than one year of state tax liability.
Practical tip: Keep track of your state solar credit usage just like you would for federal. If you claimed part of a state credit and have a remainder for next year, note how many years you have left to use it. This will help you plan (for example, if your state only gives you 5 years and you still have a chunk of credit left, you might want to strategize any taxable events or income within those years to make sure you can use it). Consult your state’s department of revenue website or forms – they often have a specific form for the solar credit that includes instructions on carryforward.
In summary, federal vs. state solar credits differ mainly in percentage and limits, and the timeframe for carryforward. Federal is generous with no time limit and a high percentage (30%). States may have lower percentages or caps and usually a finite carryforward period. Make sure to capitalize on both if you have both available, but follow each jurisdiction’s rules closely so you don’t accidentally lose a state credit by waiting too long.
Residential vs. Business Solar Tax Credits (Carryforward Differences)
Another important comparison is between residential (personal) and business solar tax credits. The federal government provides incentives for solar in both contexts, but they fall under different sections of the tax code and have slightly different rules.
Residential Solar Tax Credit (Personal Use): This is the one we’ve been discussing in detail – available to individual taxpayers installing solar on their homes. It’s claimed on your personal income tax return. As we know, any excess residential credit can carry forward to future years until exhausted, with no specified limit on how many years.
Business Solar Tax Credit (Commercial ITC): Businesses that install solar (for example, on an office building, factory, or even a rental property if you’re a landlord) can claim the Investment Tax Credit under Section 48 of the tax code. Prior to 2022, the residential and business credits were both commonly referred to as the “ITC,” but the big difference is business credits fall under the category of General Business Credits. General business credits have standardized carryover rules: typically, a business can carry back an unused credit 1 year (apply it to last year’s taxes, potentially getting a refund by amending last year’s return) and carry it forward up to 20 years.
So if a company puts solar panels on their facilities and earns, say, a $50,000 tax credit but doesn’t owe enough tax this year to use it all, the company could amend the previous year’s tax return to apply some credit there (that’s the 1-year carryback) and/or carry the unused portion forward to offset future profits for up to 20 years. After 20 years, if any credit is still unused (which would be unusual, but possible if the business had very low taxable income for a long time), typically that remaining credit would expire (or in some cases half of it might be refunded, depending on tax law specifics at that distant time).
For most homeowners, the business credit rules don’t apply – unless you have a specific situation like installing solar on a property you rent out (and you treat it as a business asset), or you’re a sole proprietor running a business from home and claiming business expenses. Even then, the residential credit is usually the one you’d use for a home installation, not the commercial ITC, unless the system is solely for business use. If you are purely a business entity installing solar (like a company investing in a solar farm or a commercial building array), you’d use the business ITC and follow those carryback/carryforward rules.
It’s interesting to note that while individuals cannot carry their solar credit back to a previous year, businesses can. Why the difference? It comes down to how the laws were written for business incentives – general business credits have long had that 1-year-back, 20-year-forward framework to provide flexibility and relief for businesses over economic cycles. For personal credits, Congress didn’t provide a carryback, likely to keep things simpler for individual filings and possibly due to budget impact considerations. But they did allow forward carry to ensure fairness for those who can’t use it all at once.
Example: Imagine a small business installs a large solar array costing $200,000. At a 30% credit, that’s a $60,000 credit. If in the year of installation the business tax liability is only $30,000, they can wipe out that $30k with the credit, then perhaps carry back some or all of the remaining $30k credit to last year’s taxes if they paid tax last year. If last year’s profits were high and they owed, say, $20,000 in taxes, they can amend last year’s return to get a $20k refund by applying part of the solar credit backwards. Then the leftover $10,000 credit could carry forward into the next year. If they still can’t use it fully, it can keep carrying forward year by year, up to twenty years if needed. This mechanism can significantly help business cash flow, essentially turning the credit into a retroactive refund in addition to future savings.
For a homeowner, the scenario is simpler: no looking back, only looking forward. You would just roll the unused portion into subsequent years.
It’s also worth mentioning that the business solar credit percentage can be higher than 30% if certain bonus criteria are met (like domestic content, projects in certain areas, etc., under new law adjustments). That can make for even larger credits and underscores why the extended carry period is useful for businesses.
Lastly, note that if you’re a homeowner installing solar on a rental property you own (not your personal residence), you might actually fall under the business credit rules rather than the residential credit, because it’s considered an investment property. In that case, you’d use the carryback/forward rules accordingly. But for the majority of individual solar adopters who are putting panels on their own home where they live, the personal credit with straightforward carryforward applies.
In summary: Residential (personal) solar credits = carry forward indefinitely, no carryback. Business solar credits = carry back 1 year, carry forward up to 20 years. Both ensure the credit can eventually be used; the business credit just has a defined window and the extra perk of a carryback. Knowing which category you fall into will guide how you plan for using the credit and how you file your taxes to claim it.
Pros and Cons of the Solar Tax Credit Carryforward
Like any tax provision, carrying forward the solar credit has its advantages and a few potential downsides. Here’s a quick look at the pros and cons of this carryforward feature:
| Pros | Cons |
|---|---|
| Helps maximize savings: Ensures you don’t lose any of your solar credit, even if your tax bill is low in year one. You get the full benefit over time. Flexible timing: You can apply the credit in a future year when it’s most needed, which is useful if your income (and taxes) fluctuate. Encourages solar adoption: People with lower tax liability can still go solar without fear of wasting part of the credit – it makes the incentive more equitable. | No immediate cash if low tax: If you expected a big refund but have low tax liability, you might be disappointed – the benefit comes in future years, so there’s a waiting period to get all your savings. Requires future tax liability: Carryforward is only valuable if you later owe taxes. If you retire or otherwise have no tax in the future, the credit could remain unused indefinitely. Record-keeping needed: You must keep track of the unused credit and remember to claim it in subsequent years. It’s not automatic without proper filing, so there’s a small administrative burden. |
Overall, the pros far outweigh the cons for most people. The carryforward provision is a consumer-friendly element of the tax code, designed to ensure you eventually receive every dollar of incentive you qualify for. The cons are mostly about timing – you might have to wait to realize the full benefit – and making sure you handle the paperwork correctly. By being aware of these, you can plan accordingly (for example, setting aside savings if you anticipated using the credit for a purchase, or working with a tax professional to ensure you don’t forget a carryover). In the grand scheme, having the ability to carry forward is much better than the alternative (losing the credit entirely). It turns the solar tax credit from a one-shot deal into a flexible, multi-year benefit when necessary.
Key Tax Terms Explained (Solar Credits 101)
Understanding a few key tax terms will help make sense of the solar credit and how carryforwards work. Here’s a quick glossary in plain English:
- Tax Credit (vs. Tax Deduction): A tax credit is a dollar-for-dollar reduction of your tax bill. If you have a $1,000 credit, your taxes owed drop by $1,000. By contrast, a tax deduction reduces your taxable income. A $1,000 deduction might save you $200 or $300 in tax (depending on your tax bracket), whereas a $1,000 credit saves you the full $1,000 in tax. The solar incentive is a tax credit – it directly cuts what you owe the IRS, which is very valuable. It’s also sometimes informally referred to as the “Investment Tax Credit” or ITC (a term especially used for business solar projects), but for homeowners it’s all the same 30% federal solar tax credit.
- Nonrefundable Credit: This means the credit can bring your tax owed down to zero, but it cannot make the IRS owe you money beyond that. In other words, you won’t get a payment from the government if the credit exceeds your tax liability for the year. Being nonrefundable is precisely why the carryforward provision exists – instead of a refund, you carry the leftover credit to future years. Some other tax credits (like certain education credits or child credits) are partially refundable, meaning you could get money back even if you don’t owe tax. The solar credit is not in that category; it strictly offsets tax liability.
- Tax Liability: This is just a formal term for the amount of income tax you owe for a given year. It’s calculated on your tax return after accounting for all your income, deductions, and other credits. For example, if after doing your 2025 taxes, the IRS says you owe $5,000 (before applying the solar credit), that $5,000 is your tax liability. If you had $6,000 withheld from your paycheck during the year, you would normally get a $1,000 refund (because you overpaid). When credits like the solar credit enter the scene, they reduce that liability. So if you have a $5,000 tax liability and a $5,000 solar credit, your liability becomes $0 – meaning you owe nothing and all $5,000 you paid in through the year would be refunded. If your credit was $6,000 on a $5,000 liability, your liability goes to $0 and the extra $1,000 of credit remains unused (carryforward). It’s important to recognize tax liability is not the same as your refund or balance due. It’s the starting point that credits work against.
- Carryforward (Carryover): Both terms are used and mean the same thing: taking an unused portion of a credit or deduction and using it in a future year. In our context, a carryforward refers to applying the remaining solar tax credit to your taxes in later years. If you see “credit carryover” on tax forms or discussions, it’s referring to this concept. Essentially, think of it as moving a benefit forward in time. As illustrated earlier, if you couldn’t use, say, $2,000 of your credit this year, that $2,000 moves into a “credit bank” for next year’s taxes. The carryforward mechanism is automatic in law, but you have to actively claim it each year on your tax return to get the benefit.
- Carryback: The opposite of carryforward. This is the ability to apply an unused credit to a previous tax year. As noted, individuals cannot do this with the solar credit – there is no carryback for personal credits. Businesses can carry back their solar credit one year. Carrybacks are less common nowadays for individual taxes (some were allowed for things like net operating losses or certain credits historically), but it’s good to know the term. If you ever see someone mention carrying back a solar credit, they are likely talking about a business or they are mistaken about the residential rules.
- Form 5695: This is the IRS form titled “Residential Energy Credits”. If you’re claiming the solar tax credit, you’ll fill out this form and attach it to your Form 1040 (your main tax return). Form 5695 is where you calculate the credit amount (30% of your qualified costs) and determine how much of it you can use for the year versus carry forward. In the year you first claim the credit, this form will show the split – used this year vs. carryforward. In the next year, you’ll use a new Form 5695 to input any carryforward from the prior year. It’s not a complicated form (usually one page), but it’s crucial for actually getting the credit. Knowing its name can be helpful if you use tax software (you might be prompted for information about energy credits) or if you hire a professional (you can mention “don’t forget Form 5695 for my solar panels”). Also, keep a copy of the form from the year you installed solar; it will show any carryover to the future.
- Section 25D: This is the section of the Internal Revenue Code that authorizes the residential solar tax credit (and certain other residential energy credits). You might see references to “25D credit” in tax literature or on forums – that’s just the fancy way to refer to the solar credit for individuals. The carryforward subsection we discussed is found here. While you don’t need to know the code number to claim your credit, it’s an example of how tax law is structured. Having the citation (Section 25D) is useful if you ever want to read the exact legislative wording or if you encounter a tax professional who prefers using code references.
Understanding these terms will make you conversant in the language of solar incentives and taxes. Essentially, it boils down to this: the solar tax credit is a powerful, nonrefundable credit that can wipe out your tax liability, and any leftover can carry forward to future years. By filing the correct forms and following the rules, you can leverage this incentive fully, whether immediately or over time.
With these concepts under your belt, let’s address some frequently asked questions that often come up regarding carrying forward the solar tax credit.
Frequently Asked Questions (FAQs)
Q: Is the federal solar tax credit refundable if I don’t owe any taxes?
A: No. The solar tax credit is nonrefundable. If your credit is larger than your tax liability, you won’t get a refund for the excess – but you can carry it forward to future years.
Q: Can I carry over my unused solar tax credit to the next year?
A: Yes. You can carry forward any unused portion of the federal solar tax credit to the next tax year (and beyond) until it’s fully used. There’s currently no fixed time limit on how long you can carry it forward.
Q: Do I lose the credit if I can’t use it all in one year?
A: No. You won’t lose the unused solar credit as long as you have future tax liability to apply it to. The remaining credit rolls over each year. It would only go unused if you never owe enough tax in subsequent years.
Q: Can I get a check from the IRS for my solar credit if it’s bigger than my tax?
A: No. You won’t receive a check for the unused portion of the solar credit. The IRS doesn’t refund the excess credit to you directly – it simply lets you apply that excess to future tax bills.
Q: Do state solar tax credits also carry forward to future years?
A: Yes, in many cases. Many states with solar tax credits allow you to carry forward unused credit, but the rules vary. Often there’s a limit (e.g. carryforward allowed for 5 years). Always check your state’s specific guidelines to know how long you can roll over a state credit.
Q: If I lease my solar panels, can I claim the 30% tax credit?
A: No. If you lease panels or sign a PPA, you’re not the owner, so you cannot claim the federal tax credit. The credit goes to the owner (usually the solar company). Only purchasing (with cash or loan) lets you claim the credit yourself.
Q: Can I claim the solar tax credit in multiple years?
A: Yes. You claim the credit for the year you install the solar system (that’s when it’s “earned”), but if it’s not fully used, you will claim the carried-forward portions in subsequent years. Additionally, if you install separate solar systems in different years, you can claim new credits each time – one doesn’t cancel out the other.
Q: How many times can I use the carryforward?
A: As many times as needed until the credit is fully used. For the federal credit, there’s no set limit – it can carry into each new year continuously. For example, you could use part of it in 2025, another part in 2026, and so on, until it’s gone.
Q: Will the solar tax credit carryforward still apply if the credit program ends?
A: Yes. If you’ve earned a credit while the program is in effect, you keep that credit. Even if the credit percentage drops or expires for new installations, your unused credit from a prior year can still be carried forward and used. The law protects carryforwards for credits already earned.