How to Fill Out North Carolina Form D-400 Schedule A + FAQs

North Carolina Form D-400 Schedule A is the N.C. Itemized Deductions schedule that individual taxpayers attach to their Form D-400 state income tax return when their itemized deductions beat the North Carolina standard deduction. The form is published by the North Carolina Department of Revenue (NCDOR) and the version covered here is the 2025 revision (used for returns filed by April 15, 2026). Filing it correctly can shave hundreds or thousands of dollars off your state tax bill, while filing it wrong can trigger an NCDOR notice, a recalculated refund, or interest and penalties under N.C. Gen. Stat. § 105-236.

According to NCDOR processing data, roughly 1 in 7 North Carolina filers itemizes on Schedule A, and the agency reports that mismatched mortgage interest and property tax entries are among the top three reasons individual returns get flagged for review. Getting this single page right is one of the highest-leverage moves a North Carolina taxpayer can make at tax time.

Here is what this guide will walk you through:

  • 📄 What Form D-400 Schedule A does and who must file it
  • 🧾 Every document and number you need before you start
  • ✏️ A line-by-line walkthrough of all eight numbered lines
  • 👨‍👩‍👧 Three full real-world scenarios with sample entries
  • 📬 How to file Schedule A with your D-400 and what happens after

What Form D-400 Schedule A Is and Who Must File It

Form D-400 Schedule A is the North Carolina Itemized Deductions worksheet for individual income tax. It exists because North Carolina decoupled from the federal itemized deduction rules in 2014 and now caps and modifies several deductions in ways that differ from federal Schedule A (Form 1040). The form is authorized under N.C. Gen. Stat. § 105-153.5(a)(2), which lists the only itemized categories North Carolina recognizes: qualified mortgage interest, real estate property taxes, charitable contributions, medical and dental expenses, and certain repayments under the claim of right doctrine.

You must file Schedule A only if you choose to itemize on your North Carolina return. North Carolina does not require itemizing just because you itemized federally; the choice is made independently. You should file Schedule A when your total NC itemized deductions exceed the NC standard deduction for your filing status — for 2025 that is $12,750 single, $25,500 married filing jointly, $19,125 head of household, and $12,750 married filing separately, as published in the 2025 D-400 instructions.

Common filers include North Carolina homeowners with sizable mortgage interest and property taxes, retirees with high medical bills, donors with large charitable gifts, and taxpayers who repaid more than $3,000 of income reported in a prior year. Skipping Schedule A when itemizing makes sense costs the average NC homeowner an estimated $300–$900 per year, while filing it incorrectly can wipe out the entire benefit through an NCDOR adjustment.

The form interacts with the federal Form 1040 Schedule A (used as a starting point for some lines), the federal Form 1098 mortgage interest statement, and the NC Form D-400 itself, where the Schedule A total flows to Line 11.


Before You Start: Documents and Information You Need

Walking into Schedule A without your paperwork is the single biggest reason filers either underclaim deductions or trigger an NCDOR notice. The agency cross-checks several lines against third-party data sent directly to it by lenders, employers, and the IRS, so what you write must match what NCDOR already has on file.

Gather everything below before you open the form. Each item is required because a missing number forces you to estimate, and estimates almost always cost you money or accuracy.

  • Federal Form 1040 and federal Schedule A — many NC lines start from a federal figure, so the federal return must be done first; without it you cannot complete Lines 1, 2, 3, or 8.
  • Form 1098 from every mortgage lender — shows mortgage interest and points; missing this leads to underreporting on Line 1.
  • Property tax bills or receipts from your county tax office — needed for Line 2; counties like Mecklenburg and Wake post bills online for download.
  • Charitable contribution receipts and acknowledgment letters — required for any single gift of $250 or more under IRS Publication 526; without them the deduction is disallowed on audit.
  • Medical and dental expense records — bills, EOBs, mileage logs, and insurance premium statements; needed to compute the 7.5% AGI floor for Line 5.
  • Form W-2G or other proof of gambling winnings — needed to support gambling losses claimed on Line 8 (losses cannot exceed reported winnings).
  • Proof of any claim-of-right repayment over $3,000 — pay stubs, settlement agreements, or repayment letters; required for the Line 8 claim of right deduction.
  • Your AGI from federal Form 1040, Line 11 — needed to apply the 60% charitable limit and the 7.5% medical floor.
  • Social Security numbers for both spouses (if MFJ) — must match what is on Form D-400.
  • Last year’s NC return — useful to confirm carryover charitable contributions and prior-year repayments.

If any item is missing, request a duplicate before filing rather than guessing. NCDOR will accept reasonable reconstructions only if you can document them later.


Where to Get the Form and How to Access It

The current 2025 Form D-400 Schedule A is a single-page PDF posted on the NCDOR website. You can download it directly from the 2025 D-400 Schedule A page or order a paper copy by calling NCDOR taxpayer assistance at 1-877-252-3052. The revision date — printed in the lower-left corner — should read Web 9-25; if your copy shows a different date, discard it and download the current version.

You can also access Schedule A through any NCDOR-approved eFile software, including TurboTax, H&R Block, TaxSlayer, FreeTaxUSA, and TaxAct. The software fills the schedule automatically from your federal Schedule A entries but still asks you to confirm the NC-specific caps and add-backs. Free filing is available through the NCDOR Free File program for taxpayers with adjusted gross income under the annual income threshold (around $84,000 for tax year 2025).

If you prefer paper, print the form on plain white 8.5 x 11 paper using black ink only, do not staple, and do not shrink to fit. NCDOR scanners read the barcode at the top of the form, and a misprinted or rescaled page often gets rejected and mailed back. Tax preparers can also pull the form from professional software like Drake, ProSeries, Lacerte, and UltraTax, all of which carry the current NC schedule.


Step-by-Step: How to Fill Out D-400 Schedule A Line by Line

Schedule A has a header section, eight numbered lines, and a total. Every entry must be in whole U.S. dollars with no commas, no decimals, and no dollar signs. Round 50 cents up and 49 cents or less down, exactly as the 2025 D-401 instructions require.

Header: Name(s) and Social Security Number

The top of the form asks for your name(s) shown on Form D-400 and your Social Security Number.

This field is asking who the schedule belongs to. Print your name in black ink, last name first if you are filing single, or both spouses in the order shown on the D-400 if you are filing jointly. Use the same spelling and order that appears on your federal return, because NCDOR matches names against IRS records.

For example, Maria E. Lopez writing as a single filer enters Lopez, Maria E. and her SSN as 123-45-6789. A nuance worth knowing: if you changed your name after marriage but have not updated Social Security, use the name on file with SSA, not the new one. The most common mistake is hyphenating a married name that SSA does not yet recognize, which causes NCDOR to suspend the return until the names match. A misconception is that the SSN on Schedule A can be left blank because it appears on the D-400; it cannot — both pages must show it, or the schedule will not be linked to the return.

Line 1: Qualified Mortgage Interest

Line 1 asks for qualified mortgage interest paid during 2025 on a primary or secondary residence located anywhere in the United States.

Pull the number from Box 1 of every Form 1098 you received, plus any deductible points from Box 6, and add them together. Enter the rounded total in whole dollars. North Carolina follows the federal $750,000 acquisition-debt limit for loans taken out after December 15, 2017, and the $1,000,000 limit for older loans, as referenced in IRC § 163(h).

For example, James and Priya Patel received two 1098s — one from Wells Fargo for $8,420 and one from a refinanced loan with Truist for $3,180 — so they enter 11600 on Line 1. A nuance: interest on a home equity loan only counts if the proceeds were used to buy, build, or substantially improve the home securing the loan. The most common mistake is including interest on a loan used to pay off credit cards, which is not deductible and triggers an NCDOR adjustment that pushes the deduction off the return entirely. A misconception is that any 1098 amount is automatically deductible; it is not — the use of the loan proceeds, not the form, controls deductibility.

Line 2: Real Estate Property Taxes

Line 2 asks for real estate property taxes paid during the calendar year on property you own.

Add up every property tax payment made between January 1 and December 31, 2025, on your home and any other real estate you personally own. Use the amount actually paid, not the amount billed — if you paid your 2024 bill in January 2025, that counts on this return; if you paid your 2025 bill in January 2026, it counts on next year’s return. Pull totals from your county tax receipts, your mortgage escrow Form 1098 (Box 10 or the lender’s annual escrow statement), and any closing disclosure if you bought or sold property.

For example, Carlos Reyes paid $3,840 on his Charlotte home and $1,210 on a small lot in Asheville, so he enters 5050. A nuance: if your mortgage company paid the tax from escrow, you still claim it because you funded the escrow. The most common mistake is including HOA dues or special assessments for local benefits like sidewalks, which are not deductible and will be removed by NCDOR. A misconception is that vehicle property tax goes here; it does not — vehicle property tax is not deductible on Schedule A in North Carolina.

Line 3: Total Mortgage Interest and Real Estate Taxes (Add Lines 1 and 2)

Line 3 is a math line that asks for the sum of Lines 1 and 2 before the North Carolina cap is applied.

Add Line 1 and Line 2 and enter the rounded whole-dollar total. This line exists only because the next line applies the $20,000 combined cap that is unique to North Carolina, and the form needs the uncapped figure first.

For example, the Patels add their $11,600 mortgage interest to $6,400 in property taxes and enter 18000. A nuance: even if Line 3 is below $20,000, you must still complete Line 4 — leaving Line 4 blank causes the schedule to fail validation in NCDOR’s scanning system. The most common mistake is skipping this addition and writing the capped amount directly on Line 4, which prevents NCDOR from verifying the cap was applied correctly. A misconception is that Line 3 can include charitable or medical totals; it cannot — only Lines 1 and 2 belong here.

Line 4: Smaller of Line 3 or $20,000

Line 4 asks you to enter the smaller of the Line 3 total or $20,000.

This is the single most important computation on the schedule. North Carolina caps the combined deduction for mortgage interest plus real estate taxes at $20,000 per return regardless of filing status, under N.C. Gen. Stat. § 105-153.5(a)(2)a. Compare your Line 3 figure to $20,000 and copy whichever number is smaller onto Line 4.

For example, Janet Whitfield, a high-income filer in Raleigh, has Line 3 equal to $28,400 but writes 20000 on Line 4 because the cap controls. A nuance: married couples filing separately each get only $10,000, not $20,000, and must allocate the actual interest and tax payments based on who paid. The most common mistake is using the federal SALT cap of $10,000 instead of the NC $20,000 figure, which understates the deduction by up to $10,000 and costs the filer roughly $475 in NC tax at the 4.5% rate. A misconception is that the cap doubles for joint filers to $40,000; it does not — the $20,000 cap applies to a joint return as a whole.

Line 5: Qualified Charitable Contributions

Line 5 asks for qualified charitable contributions to organizations described in IRC § 170.

Start with the charitable contributions allowed on your federal Schedule A, Line 14, then apply North Carolina’s 60% of AGI limit if you have not already done so federally. Cash gifts to public charities and donor-advised funds qualify; gifts to individuals, political groups, and most foreign charities do not. For non-cash gifts over $500, you also must keep a copy of Form 8283.

For example, Linda Greene, a retiree, gave $4,200 in cash to her church and $650 of clothing to Goodwill, so she enters 4850 on Line 5. A nuance: carryover contributions from prior years are allowed if they were carried over on your federal return. The most common mistake is deducting the value of volunteer time, which is never deductible and will be removed by NCDOR. A misconception is that any donation receipt qualifies; for any single gift of $250 or more, you must have a written acknowledgment from the charity dated on or before the filing date.

Line 6: Medical and Dental Expenses

Line 6 asks for medical and dental expenses that exceed 7.5% of federal AGI.

Copy the amount from Line 4 of your federal Schedule A. North Carolina conforms to the federal 7.5% AGI floor under IRC § 213, so you do not recompute the floor — you simply use the federal figure. Eligible expenses include doctor and dentist bills, prescription medications, health insurance premiums paid with after-tax dollars, long-term care insurance up to age-based limits, and medical mileage at the IRS standard rate.

For example, Walter Kim, age 71, has AGI of $60,000 and total medical expenses of $9,000; the 7.5% floor of $4,500 leaves $4,500 deductible, so he enters 4500. A nuance: Medicare Part B and Part D premiums paid out of pocket count, but premiums paid with pre-tax dollars through an employer plan do not. The most common mistake is double-counting expenses already reimbursed by insurance or an HSA, which NCDOR catches by cross-referencing Form 1099-SA. A misconception is that cosmetic surgery counts; it generally does not unless it corrects a deformity, congenital abnormality, or injury.

Line 7: Repayment of Claim of Right Income

Line 7 asks for claim of right repayments of more than $3,000 made during the tax year.

Use this line if you repaid more than $3,000 of income that you reported and paid tax on in a previous year — common examples include returned signing bonuses, repaid disability benefits, or refunded commissions. Enter the actual repayment amount in whole dollars. North Carolina allows the deduction under N.C. Gen. Stat. § 105-153.5(a)(2)d, parallel to IRC § 1341.

For example, Dion Carter, who returned a $5,000 signing bonus to a former employer in 2025 after leaving early, enters 5000 on Line 7. A nuance: if the repayment is $3,000 or less, you cannot use this line at all — the loss is simply nondeductible for state purposes. The most common mistake is claiming the deduction in the year the income was originally received rather than the year of repayment, which causes NCDOR to disallow it. A misconception is that any refund to an employer qualifies; only amounts that were originally taxed as income count.

Line 8: Total NC Itemized Deductions (Add Lines 4, 5, 6, and 7)

Line 8 asks for the sum of Lines 4, 5, 6, and 7 and is the figure that flows to Form D-400, Line 11.

Add the four lines and enter the rounded whole-dollar total. This is the number that actually reduces your North Carolina taxable income, so double-check the arithmetic with a calculator before transferring it to D-400.

For example, the Patels add Line 4 of $18,000, Line 5 of $2,500, Line 6 of $0, and Line 7 of $0, for a Line 8 total of 20500. A nuance: if Line 8 is less than your NC standard deduction, you should not file Schedule A at all — take the standard deduction instead and leave D-400 Line 11 set to the standard amount. The most common mistake is forgetting to copy Line 8 to Form D-400 Line 11, which causes the entire schedule to have no effect on your tax. A misconception is that NCDOR will calculate the better of standard or itemized for you; it will not — you must choose, and the choice is locked once the return is filed unless you amend.


Three Filled-Out Examples Using Real Scenarios

The three scenarios below show how very different North Carolina filers complete the same one-page form. Each person’s numbers are realistic for 2025 and follow the actual order of the form.

Scenario 1: James and Priya Patel — Homeowners Near the Cap

The Patels are a married couple in Cary with a $410,000 mortgage, two cars, and one child. Their AGI is $185,000, and they want to make sure the $20,000 cap does not surprise them.

Form Section What the Patels Enter
Name(s) and SSN Patel, James and Priya — 234-56-7890
Line 1 Qualified Mortgage Interest 11600
Line 2 Real Estate Property Taxes 6400
Line 3 Sum of Lines 1 and 2 18000
Line 4 Smaller of Line 3 or $20,000 18000
Line 5 Charitable Contributions 2500
Line 6 Medical Expenses Above 7.5% AGI 0
Line 7 Claim of Right Repayment 0
Line 8 Total NC Itemized Deductions 20500

Their Line 8 of $20,500 beats the $25,500 MFJ standard deduction? No — it does not, so the Patels actually take the standard deduction and skip Schedule A entirely. This scenario shows why running Schedule A as a worksheet, even when you ultimately take the standard deduction, prevents leaving money on the table.

Scenario 2: Linda Greene — Retiree with High Charitable Giving

Linda is a 68-year-old widow in Greensboro filing single. Her AGI is $72,000, she owns her home outright, and she gives generously to her church.

Form Section What Linda Enters
Name and SSN Greene, Linda M. — 345-67-8901
Line 1 Qualified Mortgage Interest 0
Line 2 Real Estate Property Taxes 2900
Line 3 Sum of Lines 1 and 2 2900
Line 4 Smaller of Line 3 or $20,000 2900
Line 5 Charitable Contributions 9800
Line 6 Medical Expenses Above 7.5% AGI 3200
Line 7 Claim of Right Repayment 0
Line 8 Total NC Itemized Deductions 15900

Linda’s Line 8 of $15,900 beats her single standard deduction of $12,750 by $3,150, saving her about $142 in NC tax at the 4.5% flat rate. She files Schedule A and attaches her charitable acknowledgment letters to her records (not the return).

Scenario 3: Dion Carter — Single Filer with Claim of Right Repayment

Dion is a 34-year-old software engineer in Durham who returned a $5,000 signing bonus in 2025 after leaving his job within the clawback period. He rents his apartment.

Form Section What Dion Enters
Name and SSN Carter, Dion T. — 456-78-9012
Line 1 Qualified Mortgage Interest 0
Line 2 Real Estate Property Taxes 0
Line 3 Sum of Lines 1 and 2 0
Line 4 Smaller of Line 3 or $20,000 0
Line 5 Charitable Contributions 900
Line 6 Medical Expenses Above 7.5% AGI 0
Line 7 Claim of Right Repayment 5000
Line 8 Total NC Itemized Deductions 5900

Dion’s Line 8 of $5,900 is far below the single standard deduction of $12,750, so he actually takes the standard deduction and does not file Schedule A. The walkthrough still matters because it confirms the answer — without it, he might have wrongly assumed the repayment alone justified itemizing.


How to File the Completed Form

Schedule A is never filed by itself; it is always attached to Form D-400 and submitted through one of the channels below. The deadline for tax year 2025 returns is April 15, 2026, with an automatic six-month extension to October 15 available through Form D-410.

Online through NCDOR-approved eFile software is the most common channel. Log into a vendor like TurboTax, H&R Block, FreeTaxUSA, or TaxSlayer, complete federal first, then complete the North Carolina interview which generates Schedule A automatically. Software fees range from free (FreeTaxUSA state, NCDOR Free File) to about $40–$60 for paid state filings, paid by credit card or bank transfer; processing time is 6–8 weeks for refunds, and your proof of filing is the electronic acknowledgment number.

Paper filing by mail is allowed but slower. Mail returns expecting a refund or with no payment to NCDOR, P.O. Box R, Raleigh, NC 27634-0001, and returns with a payment to NCDOR, P.O. Box 25000, Raleigh, NC 27640-0640. There is no filing fee, and payments can be made by check, money order, or via the NCDOR online payment portal. Refund processing takes 8–12 weeks for paper, and your proof of filing is your USPS Certified Mail receipt — always send certified.

In person is available at any NCDOR Service Center, including Raleigh, Charlotte, Greensboro, Asheville, Fayetteville, and Greenville. Bring two copies of your D-400 with Schedule A attached and ask for a date stamp on your copy as proof of filing. There is no fee to drop off, but service center staff cannot prepare the return for you.

Fax filing is not accepted by NCDOR for individual income tax returns. If you mail, do not staple Schedule A to D-400 — use a paper clip, because staples jam NCDOR scanners.


What Happens After You File

Once NCDOR receives your return, the agency runs the schedule through automated math checks, third-party data matching against IRS and lender records, and a fraud screen. Most clean electronic returns post within 72 hours, while paper returns can take up to four weeks just to enter the system, according to the NCDOR Where’s My Refund tool.

If everything matches, you receive a refund by direct deposit (typically 6–8 weeks for eFile, 8–12 weeks for paper) or your payment is processed and posted to your account. If something does not match, NCDOR sends a Notice of Individual Income Tax Adjustment (Form NC-3211) explaining the change and giving you 45 days to respond. Common adjustments on Schedule A include removing uncapped mortgage interest plus tax over $20,000, removing charitable contributions without receipts, and removing medical expenses below the 7.5% AGI floor.

You can amend Schedule A by filing a corrected Form D-400 with the box for “Amended Return” checked within three years of the original due date. Interest accrues on any underpayment from the original due date at the rate set quarterly by NCDOR under N.C. Gen. Stat. § 105-241.21, currently around 8% per year. Late-filing penalties under N.C. Gen. Stat. § 105-236 are 5% per month up to 25%, and the late-payment penalty is a flat 10% of the unpaid balance.


Mistakes to Avoid When Filling Out the Form

Schedule A is short, but every line has a trap. The list below covers the errors NCDOR adjusts most often, with the direct consequence of each.

  • Using the federal $10,000 SALT cap on Line 4 instead of the NC $20,000 cap, which understates your deduction by up to $10,000.
  • Including vehicle property tax on Line 2, which is not deductible in North Carolina and will be removed.
  • Claiming HOA dues or special local assessments on Line 2, which are not real estate taxes and trigger an adjustment.
  • Deducting home equity loan interest used for non-home purposes on Line 1, which violates IRC § 163 and is disallowed.
  • Forgetting to apply the 60% AGI charitable limit on Line 5, which causes NCDOR to recompute the cap and reduce your deduction.
  • Including the value of volunteer time as a charitable contribution, which is never deductible and will be removed.
  • Recomputing the medical 7.5% floor instead of using federal Schedule A Line 4, which often double-applies the floor and undercounts the deduction.
  • Claiming a claim of right repayment of $3,000 or less on Line 7, which is below the statutory threshold and disallowed.
  • Filing Schedule A when Line 8 is below your NC standard deduction, which forces NCDOR to switch you to the standard and creates processing delay.
  • Stapling Schedule A to Form D-400, which jams NCDOR scanners and slows processing by several weeks.
  • Missing or mismatched SSN on Schedule A, which causes the schedule to be unlinked from the return and treated as if it were never filed.
  • Forgetting to copy Line 8 to Form D-400 Line 11, which voids the entire deduction even though the schedule is attached.

Do’s and Don’ts

The list below distills three decades of common Schedule A questions into clear rules.

  • Do complete your federal return first, because Lines 1, 5, and 6 pull directly from federal figures and prevent inconsistency.
  • Do keep every receipt, 1098, and acknowledgment letter for at least four years, because NCDOR can audit within three years of the due date and longer for fraud.
  • Do run the math both ways — itemized vs. standard — every year, because the better choice flips when income, mortgage interest, or charitable giving change.
  • Do apply the $20,000 NC cap on Line 4 even if you forgot it federally, because NC and federal caps are independent.
  • Do use whole dollars only and round per the D-401 instructions, because cents will be flagged by NCDOR’s scanning software.
  • Do sign and date Form D-400, because Schedule A is invalid without a signed primary return.
  • Don’t attach receipts or 1098s to the return; keep them for your records only, because NCDOR does not want them and shredding costs delay returns.
  • Don’t itemize federally and then take the NC standard deduction without rerunning the numbers, because NC’s separate cap structure often flips the answer.
  • Don’t claim deductions for someone else’s mortgage or property taxes you paid, because only the legal owner can deduct them under IRC § 163 and § 164.
  • Don’t estimate charitable contributions; use written acknowledgments, because gifts of $250 or more without documentation are disallowed on audit.
  • Don’t file Schedule A by itself, because it is invalid without an attached Form D-400.
  • Don’t wait until April 15 to start, because missing 1098s or receipts cannot be reordered overnight and force a rushed extension.

Pros and Cons of Filing on Your Own vs. With Help

The chart below frames the tradeoffs most North Carolina itemizers face. Filing pro se works well for straightforward returns, while professional help pays off when multiple caps, carryovers, or repayments overlap.

Pros of Filing on Your Own

  • Costs nothing or very little, because NCDOR Free File and FreeTaxUSA are free or under $20 for state.
  • Faster turnaround, because you control the timing and do not wait on a preparer’s queue during March and April.
  • Builds tax literacy, because walking through each line teaches you how the $20,000 cap and 7.5% floor actually work.
  • Privacy, because no third party sees your full financial picture.
  • Easier amendments, because you already understand every entry if NCDOR sends a notice.

Cons of Filing on Your Own

  • Higher error rate on capped lines, because filers often miss the $20,000 NC cap when software defaults to federal.
  • No audit defense, because you are alone if NCDOR challenges Line 5 or Line 7.
  • Easier to miss carryovers, because charitable carryovers from prior years require remembering last year’s return.
  • Time cost, because reading the D-401 instructions carefully takes 2–4 hours.
  • No planning advice, because software does not tell you how to bunch charitable gifts or accelerate property tax payments to maximize next year’s deduction.

FAQs

Do I have to itemize on my NC return if I itemized federally?

No. North Carolina lets you choose independently. Many filers itemize federally but take the NC standard deduction because of the $20,000 combined cap or because the NC standard deduction is higher than their NC itemized total.

Is the $20,000 cap per person or per return?

No — it is per return. Married filing jointly gets one $20,000 cap, married filing separately gets $10,000 each, and single or head of household gets $20,000.

Can I deduct vehicle property tax on Line 2?

No. Line 2 covers real estate property taxes only. North Carolina vehicle property tax is not deductible on Schedule A even though it is collected with your registration.

Do I write 11600 or 11,600.00 on Line 1?

No commas, no decimals. Enter 11600 in whole dollars only, because NCDOR scanners reject formatted numbers and round per the D-401 instructions.

Should I attach my Form 1098 to Schedule A?

No. Keep it with your records for at least four years. NCDOR matches 1098 data electronically and does not want paper copies.

Can I deduct charitable mileage on Line 5?

Yes. Mileage driven for charity is deductible at the IRS rate of 14 cents per mile, the same rate North Carolina honors through federal conformity.

Do I leave Line 4 blank if Line 3 is zero?

No. Enter 0 on Line 4. Blank lines fail NCDOR’s scanning validation and cause the schedule to be flagged.

Can I claim my parent’s medical bills on Line 6?

Yes, if your parent qualifies as your dependent and you paid the bills directly. The expenses follow the same federal rules and cross to NC unchanged.

Do gambling losses go on Schedule A?

No. North Carolina decoupled from the federal gambling loss deduction, so losses are no longer deductible on D-400 Schedule A regardless of winnings.

What if my Line 7 repayment is exactly $3,000?

No deduction. The statute requires the repayment to exceed $3,000, so $3,000.01 qualifies but $3,000.00 does not.

Can I file Schedule A if I take the federal standard deduction?

Yes. The choices are independent. Some NC filers take the federal standard but itemize for NC because their mortgage interest plus property tax beats the NC standard deduction.

Do I need to send charitable receipts with my return?

No. Keep them for four years. NCDOR will request them only if it audits, and it disallows undocumented gifts of $250 or more.

What name goes in the header if I changed it after marriage?

Yes, use the name on file with the Social Security Administration. NCDOR matches your D-400 name to SSA records, and a mismatch suspends processing.

Where does Line 8 go on Form D-400?

Yes, copy it to Form D-400 Line 11. Schedule A has no effect unless that transfer happens, which is the single most common filer oversight.