This article reflects federal rules and California state rules as of June 2026 and covers tax year 2025 and the 2026 filing season. Tax law changes often โ confirm current figures with the IRS or your state agency before you file.
Quick Answer
Yes. You can be audited for paying workers in cash. Paying cash is legal only if you report the wages, withhold payroll taxes, and file the right forms. Unreported “under the table” cash pay is illegal and is one of the strongest audit and fraud triggers the IRS watches for.
Paying in cash is not the crime. Hiding it is. When you hand a worker cash and skip the payroll taxes, the W-2, and the wage reports, you create a paper trail gap that the IRS, your state labor agency, and your state tax department are all built to find. The moment one worker files for unemployment, gets hurt on the job, or reports income that does not match your records, the gap shows up.
The stakes are real and personal. The IRS can pursue back payroll taxes, stack penalties, and assess the Trust Fund Recovery Penalty โ a 100% personal penalty that pierces your business and reaches your own bank account. The IRS estimates the federal “tax gap” at roughly $696 billion for tax year 2022, and unreported employment income is a large piece of it, which is exactly why enforcement targets cash payrolls.
Here is what you will learn in this guide:
- ๐ต The legal line between paying cash correctly and paying under the table
- ๐ฉ The exact red flags and events that trigger a cash-payroll audit
- ๐งฎ A fully worked dollar example showing what an audit actually costs
- โ๏ธ The full penalty ladder, from back taxes to prison, and who is personally on the hook
- ๐ ๏ธ The forms, deadlines, and fix-it steps to get compliant before the IRS calls
Paying Cash vs. Paying “Under the Table”: Not the Same Thing
The single biggest misunderstanding on this topic is that “cash” and “illegal” mean the same thing. They do not. The method of payment โ cash, check, app, or direct deposit โ is your choice. The IRS does not care how you hand money to a worker. It cares whether you report it and pay the taxes tied to it.
Paying cash legally means you treat a cash-paid worker exactly like any other employee. You collect a Form W-4, you withhold income tax and the employee’s share of Social Security and Medicare, you pay the employer’s matching share, you deposit those taxes on time, and you file a Form W-2 at year end. The cash is just the delivery vehicle.
Paying under the table means you pay cash and then act as if the payment never happened. No withholding, no deposits, no W-2, no payroll filings. That is the illegal version, and it is what the word “audit” usually attaches to. Per IRS Publication 15, employers must withhold and deposit employment taxes on wages, and there is no cash exemption.
The consequence of blurring these two ideas is expensive. Many owners think, “I paid cash, so there is no record, so I am safe.” The opposite is true. The lack of a record is itself the violation, and the IRS reconstructs unreported wages from bank deposits, supplier records, and worker statements. The missing paperwork does not protect you โ it convicts you.
What you should do: if you pay any worker in cash, set up real payroll today. You can run compliant payroll through a provider or your accountant, and the cost is small next to a single audit.
The Three Tax Buckets a Cash Payroll Skips
When cash wages go unreported, three separate tax obligations get skipped at once, and each one carries its own penalty track. First is federal income tax withholding, the money you are supposed to hold back from each paycheck. Second is FICA, the Social Security and Medicare taxes split between you and the worker. Third is FUTA, the federal unemployment tax you owe as the employer.
These are not optional line items. The IRS calls the withheld income tax and the employee FICA share “trust fund taxes” because you hold that money in trust for the government. Skipping them is treated far more harshly than simply underpaying your own income tax, because legally the money was never yours to keep.
What you should do: ask your payroll provider to confirm all three buckets โ income tax withholding, FICA, and FUTA โ are being calculated and deposited. Missing any one of them reopens your audit exposure.
Which Situation Applies to You?
The answer to “can I be audited” depends on which of these you actually are. Find your row, then read the section it points to.
- You pay cash and file W-2s with full withholding. You are compliant. Your risk is a routine records check, not a fraud case. Focus on recordkeeping and the “Do’s” list below.
- You pay cash and issue 1099-NECs, treating workers as contractors. Your risk is misclassification. Read the worker-classification and Section 3509 sections closely.
- You pay cash and report nothing at all. You are paying under the table. Read the penalty ladder and the “What to Do Next” fix-it steps now โ voluntary correction beats getting caught.
- You are a household employer (nanny, housekeeper, caregiver). Special “nanny tax” rules apply once cash wages cross the yearly threshold. See the household section.
- You are the worker being paid in cash. You still owe income tax on every dollar. See the worker-consequences section.
What Actually Triggers a Cash-Payroll Audit
Audits rarely start with a random dart throw. They start with a mismatch or a tip. Understanding the triggers tells you where your real exposure lives, because almost every cash-payroll case begins with one of the events below.
The most common trigger is a worker who turns on you, usually without meaning to. A cash-paid worker who is laid off files for unemployment, or gets injured and files a workers’ compensation claim. The state agency asks for wage records, finds none, and refers the case to the state tax department and often the IRS. One claim can unravel an entire off-books payroll.
A second trigger is the 1099 mismatch. If you paid a worker by issuing a Form 1099-NEC but treated them like an employee, or if the worker reports income that does not line up with what you filed, the IRS computer matching system flags the gap. The system compares what payers report against what recipients report, and it never sleeps.
A third trigger is the industry profile. Restaurants, construction, landscaping, salons, cleaning services, and child care are classic cash-heavy fields, and the IRS applies extra scrutiny to returns that show high revenue but suspiciously low payroll. A business that claims $800,000 in sales but only $40,000 in wages invites a “where is the labor?” question.
Other triggers include whistleblower tips from former employees or competitors, bank-deposit analysis during an income audit, and “lifestyle” audits where reported income cannot support an owner’s visible spending. The consequence of any trigger is the same: once the IRS opens the door, it can reconstruct years of unreported wages.
What you should do: assume any single worker can trigger the whole review, and price your risk accordingly. The cheapest insurance is simply running real payroll.
How the IRS Reconstructs Cash Wages
Owners often believe cash leaves no trail. The IRS disagrees, and it has standard methods to rebuild one. Agents use the bank deposit method to total your deposits and back into unreported income, and they use third-party records โ your suppliers, your customers, your point-of-sale data โ to estimate how much labor your volume required.
Agents also interview the workers. A single former employee describing weekly cash envelopes, dates, and amounts gives the IRS sworn testimony that is hard to rebut. The consequence is that the burden effectively shifts to you to disprove the estimate, which is nearly impossible without the records you chose not to keep.
What you should do: keep every payroll record for at least four years, as the IRS advises for employment tax records. Good records are your only real defense in a reconstruction.
The Penalty Ladder: From Back Taxes to Prison
Getting caught is not a single fine. It is a stack, and each rung adds to the one below it. Here is the full ladder, from the lightest civil cost to the heaviest criminal exposure.
The first rung is the back taxes themselves โ all the income tax withholding, both halves of FICA, and FUTA you should have paid, plus interest running from each missed due date. This alone often dwarfs the original payroll because it covers every worker and every year still open.
The second rung is civil penalties for late filing and late deposits. Failure-to-deposit penalties under the federal deposit rules climb to 15% of the unpaid deposit, and failure-to-file and failure-to-pay penalties stack on top. These accrue automatically.
The third rung is the Trust Fund Recovery Penalty (TFRP) under Internal Revenue Code Section 6672. When a “responsible person” willfully fails to pay over withheld trust fund taxes, the IRS can assess a penalty equal to 100% of those taxes against that person individually. As the IRS explains, this pierces the business and reaches your personal assets, so an LLC or corporation does not shield you.
The fourth rung is civil fraud. If the IRS proves the underpayment was fraudulent, the civil fraud penalty is 75% of the underpayment attributable to fraud โ a far heavier hit than the standard 20% accuracy penalty.
The fifth and highest rung is criminal prosecution. Willful failure to collect or pay over employment taxes and tax evasion are felonies. A conviction can bring fines up to $250,000 for an individual ($500,000 for a corporation) and up to five years in prison per count, plus restitution. The consequence here is not just money โ it is a criminal record and possible incarceration.
What you should do: if you are already behind, talk to a tax attorney before the IRS contacts you. Coming forward voluntarily can keep a case civil instead of criminal.
Who Is a “Responsible Person”?
The TFRP does not stop at the business owner. A responsible person is anyone with authority over the money and the decision to pay it โ and more than one person can be liable at the same time. Per the IRS, this can include a corporate officer, a partner, a sole proprietor, a bookkeeper, or even an employee who signs checks and decides which bills get paid.
“Willful” has a low bar here. The IRS treats you as willful if you knew the taxes were due and chose to pay rent, suppliers, or yourself instead. The consequence is that a controller who “was just following orders” can still be personally assessed the full 100% penalty.
What you should do: if you sign checks or control payments for a business that is behind on payroll taxes, get your own advice. Your personal exposure may be separate from the owner’s.
A Fully Worked Example: What an Audit Costs
Numbers make this real. Suppose Marco, who owns a small restaurant, pays two line cooks $30,000 each in cash for tax year 2025 and reports none of it. That is $60,000 in unreported wages for one year. Here is roughly how the bill builds, using standard federal rates.
Start with the back taxes. The employer and employee FICA combined is 15.3% of wages, so on $60,000 that is about $9,180. Add federal income tax that should have been withheld โ estimate a modest 10%, or $6,000. Add FUTA at 0.6% on the first $7,000 per worker, about $84. The core tax is roughly $15,264 for a single year.
Now stack the penalties. A failure-to-deposit penalty at 15% on the unpaid employment taxes adds about $2,290. If the IRS proves civil fraud, the 75% fraud penalty on the underpayment adds roughly $11,448. Interest then runs on everything from each original due date, easily adding hundreds to thousands more depending on how many years have passed.
Worst of all, the Trust Fund Recovery Penalty can hit Marco personally for 100% of the trust fund portion โ the withheld income tax plus the employee FICA share, about $10,590 โ assessed against him directly, separate from the business. For one year, with one trigger event, Marco’s exposure climbs past $39,000 before counting multiple years or criminal charges. The original “savings” was a fraction of that.
What you should do: multiply this by every year and every worker you have paid off the books to see your true exposure. Then weigh that against the cost of fixing it voluntarily, which is almost always a tiny fraction.
Worker Misclassification: The Other Cash Trap
Many owners try a halfway move: they pay cash and hand the worker a Form 1099-NEC, calling them an “independent contractor” to dodge payroll taxes. If the worker is really an employee, that is misclassification, and it carries its own penalties.
The IRS uses common-law control rules to decide status. The core question is control: if you direct what work is done and how it is done, set the hours, and provide the tools, the worker is almost certainly an employee, no matter what the 1099 says. The label you put on the relationship does not control; the facts do.
When the IRS finds unintentional misclassification, Section 3509 sets reduced rates: income tax withholding is figured at 1.5% of wages and the employee FICA share at 20% of the normal amount, but only if you filed the required 1099s. The consequence of not filing those 1099s is that the reduced rates double โ 3% income tax and 40% FICA โ and if the IRS finds the misclassification was intentional, Section 3509 relief disappears entirely and you owe the full tax plus penalties.
A common misconception is that “the worker agreed to be a contractor,” so you are safe. Worker consent is irrelevant. The law, not the handshake, decides classification, and the worker can force the question by filing Form SS-8 to ask the IRS for a ruling.
What you should do: run each worker through the control test now, and file Form SS-8 if you are unsure. A determination takes at least six months, so do not wait until an audit forces it. See our guide on filling out the Form 1099-NEC for the contractor side, and our W-2 walkthrough for the employee side.
Federal vs. State: Two Separate Audits
A cash-payroll problem is rarely just a federal problem. Your state runs its own payroll-tax, unemployment-insurance, and labor systems, and any one of them can audit you independently. Never assume settling with the IRS settles the state.
The table below contrasts the two layers so you can see why a single cash payroll can spawn two or more separate cases.
| Enforcement Layer | What It Pursues |
|---|---|
| Federal (IRS) | Back income tax withholding, both halves of FICA, FUTA, failure-to-deposit and fraud penalties, the 100% Trust Fund Recovery Penalty, and potential criminal charges |
| State tax / labor agency | State income tax withholding, state unemployment insurance (SUI), state disability where applicable, plus state-level penalties and interest |
California: A High-Enforcement Example
California is a useful worst-case model because its Employment Development Department (EDD) aggressively audits cash payrolls. The EDD publishes a guide titled Paying Cash Wages Under the Table that walks employers through the unemployment-insurance, disability, and withholding taxes they owe on cash wages.
California also applies a stricter worker-classification test than the federal rules. Under the state’s ABC test, a worker is presumed an employee unless the business proves all three ABC factors, which is much harder than the federal control test. The consequence is that a worker who might pass as a contractor federally can still be an employee under California law, doubling your exposure.
What you should do: identify your state agency by name โ California’s EDD, Texas’s Workforce Commission, New York’s Department of Labor โ and confirm both your state withholding and your state unemployment filings. No-income-tax states like Texas and Florida still run unemployment-insurance audits, so “no state income tax” does not mean “no state risk.”
Three Common Scenarios
These three patterns cover most cash-payroll cases. Find the one closest to yours.
Scenario 1 โ The restaurant owner. Sofia pays kitchen staff weekly cash and files nothing. A laid-off dishwasher files for unemployment.
| What Sofia Did | What Happened Next |
|---|---|
| Paid $80,000 in cash wages with no W-2s | State found no wage records, referred the case to the IRS, and Sofia faced back taxes, fraud penalties, and a personal TFRP assessment |
Scenario 2 โ The construction contractor. Dev pays framers in cash and issues 1099-NECs, calling them contractors who use his tools, follow his schedule, and work only for him.
| What Dev Did | What Happened Next |
|---|---|
| Treated employees as 1099 contractors | The IRS reclassified the workers; because Dev did file 1099s, reduced Section 3509 rates applied, but he still owed back FICA, withholding, and penalties |
Scenario 3 โ The compliant cash payer. Priya runs a cleaning service, pays staff in cash, but withholds taxes and files W-2s.
| What Priya Did | What Happened Next |
|---|---|
| Paid cash but ran full, reported payroll | A routine records check confirmed compliance; she owed nothing beyond a brief document review |
Named Examples in Detail
Marco, the restaurant owner, paid two cooks $30,000 each in cash for 2025 and reported nothing. One injured cook filed a workers’ comp claim, the state requested wage records, and the referral reached the IRS. Marco faced more than $39,000 in combined tax, penalties, and a personal Trust Fund Recovery Penalty for a single year โ far more than the payroll taxes he tried to avoid.
Dev, the framing contractor, paid four framers in cash and issued 1099-NECs. Because he controlled their hours, tools, and methods, the IRS reclassified them as employees. He had filed the 1099s, so Section 3509 reduced rates applied, but he still owed back withholding and FICA plus penalties, and his state opened its own ABC-test review.
Priya, the cleaning-service owner, also paid in cash but ran it through real payroll, withheld taxes, and filed W-2s. When a former worker reported her, the audit confirmed full compliance and closed with no tax due. Priya is proof that cash itself was never the problem โ reporting was.
Consequences for the Worker
The worker being paid in cash is not off the hook either. Every dollar of cash pay is taxable income, and the worker must report it whether or not a W-2 or 1099 arrives. Skipping it is the worker’s own tax evasion, with its own penalties and possible criminal exposure.
Beyond taxes, the worker loses real protections. Unreported wages do not build Social Security credits, so retirement and disability benefits shrink. The worker may be denied unemployment, may have no workers’ comp coverage if injured, and may struggle to prove income for a mortgage, a car loan, or an apartment.
What the worker should do: report all cash income on the tax return, keep a personal log of dates and amounts, and consider filing Form SS-8 or Form 8919 to report uncollected FICA if misclassified.
Household Employers: The “Nanny Tax”
If you pay a nanny, housekeeper, or in-home caregiver in cash, special rules apply. For tax year 2025, once you pay a household worker $2,800 or more in cash wages in the year, you owe Social Security and Medicare taxes on those wages and must report them. The threshold adjusts most years, so confirm the current figure.
You report household employment taxes on Schedule H with your personal Form 1040, and you must give the worker a W-2. The consequence of ignoring this is the same audit and penalty exposure as a business cash payroll, and household cases often surface when the worker files for unemployment or Social Security.
What you should do: get an Employer Identification Number, track wages from the first dollar, and file Schedule H with your return by the April deadline.
Mistakes to Avoid
- Believing cash leaves no trail. The IRS reconstructs wages from bank deposits and worker interviews, and the missing records become evidence against you.
- Calling employees “contractors” to dodge payroll tax. Misclassification triggers reclassification, back taxes, and Section 3509 penalties that double if you filed no 1099s.
- Assuming your LLC protects you. The Trust Fund Recovery Penalty pierces the entity and hits you personally for 100% of trust fund taxes.
- Thinking worker consent makes it legal. Classification is set by law and facts, not by agreement, so a signed “contractor” statement is worthless.
- Ignoring the state. Settling with the IRS does not settle your state unemployment, disability, or withholding audit.
- Skipping Schedule H for household help. Once cash wages cross the yearly threshold, the nanny tax applies and unpaid amounts compound.
- Waiting until the IRS calls. Voluntary correction can keep a case civil; getting caught first invites fraud and criminal exposure.
- Tossing payroll records early. Without four years of records, you cannot rebut the IRS reconstruction or defend a single dollar.
Do’s and Don’ts
Do’s
- Do run real payroll on cash wages, because withholding and W-2s are what make cash payment legal.
- Do classify each worker with the control test, because getting status right prevents the costliest audits.
- Do file W-2s and the right 1099s on time, because filed forms unlock reduced penalty rates if anything goes wrong.
- Do keep payroll records for at least four years, because records are your only defense in a reconstruction.
- Do check your state rules separately, because states audit independently and some use stricter tests.
Don’ts
- Don’t pay any worker off the books, because unreported wages are the top audit and fraud trigger.
- Don’t rely on a 1099 to disguise an employee, because the IRS reclassifies based on facts, not labels.
- Don’t assume cash is invisible, because deposit analysis and worker tips expose it.
- Don’t ignore an IRS or state letter, because deadlines to appeal a proposed assessment are short, often 60 days.
- Don’t represent yourself in a fraud case, because the criminal stakes demand a tax attorney.
Pros and Cons of Paying Workers in Cash
Pros
- Speed and simplicity, because cash settles instantly with no processing delay โ valid only when you still report it.
- No bank or card fees, which can matter for very small or seasonal crews.
- Worker preference, since some workers want immediate cash โ but you must still withhold and report.
- Fits tip-heavy trades, where cash flow is naturally cash-based, as long as wages and tips are reported.
- Lower processing overhead, though this never includes skipping payroll taxes.
Cons
- Higher audit suspicion, because cash-heavy businesses draw extra IRS scrutiny.
- Hard to prove compliance, since without records you cannot show wages were reported.
- Easy to slip into under-the-table habits, which crosses the line into fraud.
- Personal liability risk, because unpaid trust fund taxes attach to you individually.
- Worker disputes, since cash invites “you owe me more” arguments with no paper record.
What to Do Next
If you pay or have paid workers in cash, take these steps in order, starting today.
- Classify every worker now using the IRS control test; file Form SS-8 for any worker you are unsure about.
- Set up compliant payroll that withholds income tax, FICA, and FUTA on every cash dollar going forward.
- Gather and organize records โ pay logs, bank statements, and worker information โ for at least the last four years.
- File the missing forms going forward: Form 941 quarterly, Form W-2 by January 31, and Form W-3 with the SSA.
- Consider the Voluntary Classification Settlement Program if your only issue is misclassification and you want reduced back-tax exposure.
- Call a professional โ a CPA for clean-up payroll and a tax attorney if you are years behind or fear a fraud case. Expect a few hundred dollars for routine payroll setup and several thousand for representation in a contested audit.
This article is educational and is not a substitute for advice from a licensed CPA, enrolled agent, or tax attorney about your specific situation. If you have paid workers off the books for more than one year, or if the IRS or your state has already contacted you, that is the point to bring in a professional rather than going it alone.
Frequently Asked Questions
Is it illegal to pay employees in cash? No. Paying in cash is legal if you withhold payroll taxes, file W-2s, and report the wages. It becomes illegal only when you pay “under the table” and report nothing for tax year 2025 or any year.
Can the IRS find out I paid workers in cash? Yes. The IRS reconstructs cash wages from bank deposits, supplier and customer records, 1099 mismatches, and interviews with current or former workers. A single unemployment or injury claim often starts the trail.
What is the penalty for paying employees under the table? Back taxes plus stacked penalties. You owe unpaid withholding, both halves of FICA, FUTA, interest, failure-to-deposit penalties up to 15%, a possible 75% fraud penalty, and a 100% Trust Fund Recovery Penalty assessed personally.
Can I go to jail for paying workers off the books? Yes. Willful failure to pay over employment taxes and tax evasion are felonies. A conviction can bring fines up to $250,000 for an individual and up to five years in prison per count, plus restitution.
Does an LLC protect me from payroll tax penalties? No. The Trust Fund Recovery Penalty under Section 6672 pierces the business and attaches personally to any responsible person who willfully failed to pay over trust fund taxes.
What is the difference between a W-2 and a 1099 worker? Control decides it. A W-2 employee works under your direction and hours; a 1099 contractor controls their own methods. Misclassifying an employee as a 1099 contractor triggers back taxes under Section 3509.
Can a worker report me for paying cash? Yes. A worker can file Form SS-8 for a status ruling, claim unemployment, or report uncollected FICA on Form 8919, any of which can open an audit of your business.
How many years back can the IRS audit cash wages? Generally three years, but there is no time limit when fraud or a willful attempt to evade tax is involved, so unreported cash payrolls can be examined indefinitely.
Do I owe taxes on cash I pay a nanny or housekeeper? Yes, once you cross the threshold. For tax year 2025, paying a household worker $2,800 or more in cash triggers Social Security and Medicare taxes, reported on Schedule H with your Form 1040.
As a worker, do I have to report cash income with no W-2? Yes. All cash income is taxable and must be reported on your return, even with no W-2 or 1099. Failing to report it is tax evasion and also shrinks your future Social Security benefits.
Will fixing my payroll going forward erase past liability? No. Getting compliant now stops new exposure but does not erase prior unpaid taxes. Voluntary disclosure or the Voluntary Classification Settlement Program can reduce, not eliminate, the back amounts.
Does paying cash by app like Venmo or Zelle avoid these rules? No. The payment method never changes the obligation. Wages paid by cash, app, check, or transfer all require withholding, reporting, and W-2s when the worker is an employee.
This article reflects federal rules and California rules as of June 2026 and covers tax year 2025. Tax law changes โ confirm current figures with the IRS or your state agency before you file.
Related reading
- How Do I Deduct Taxes From My Employeeโs Paycheck? + FAQs
- Can You Use IRS Voluntary Disclosure for Cash? (w/Examples)
- Is It Illegal to Pay a Contractor in Cash? (Federal Rules + State Nuances, w/Examples)
- What Happens If You Donโt Report Cash Income? (w/Examples)
- What Happens If You Pay Workers Under the Table? (Penalties, Risks & How to Fix It)
- What If a Worker Reports You for Paying Cash? (w/Examples)
- Should I Have TurboTax Do My Taxes? (w/Examples) + FAQs