The IRS Form 11652 Guide: Schedule C Audit Questionnaire

Introduction – What Is Form 11652?

IRS Form 11652, titled Questionnaire and Supporting Documentation, Form 1040 Schedule C (Profit or Loss From Business), is an official examination and compliance document administered by the Internal Revenue Service (IRS) and the U.S. Department of the Treasury. It is cataloged under IRS Catalog Number 25988D.

Unlike standard tax schedules that you complete and file with your annual tax return, Form 11652 is an audit questionnaire sent directly to a taxpayer by an IRS examiner. The IRS issues this form during an examination of your tax return to verify that your small business, freelancing activity, or independent contractor work actually exists and to substantiate the gross income and business expenses you reported on Schedule C.

Purpose of the Form – Why Does Form 11652 Exist?

Under federal tax law, sole proprietors and gig economy workers report their business profits and deductible expenses on Schedule C. Because these businesses operate on a cash basis and lack the automated corporate withholding applied to W-2 employees, the IRS closely inspects Schedule C filings for overstated deductions, personal expenses disguised as business write-offs, and unreported cash revenue.

Additionally, net self-employment earnings directly determine eligibility for refundable tax credits like the Earned Income Tax Credit (EITC). Form 11652 solves the examiner’s verification problem by providing a structured audit questionnaire. It requires taxpayers to describe their daily business operations, submit licensing and marketing records, reconcile Form 1099 statements, and provide itemized expense receipts under penalties of perjury to prove their tax claims are legitimate.

Who Needs to File This Form?

You only need to complete Form 11652 if the IRS **specifically mails it to you** (or your authorized tax professional) in connection with an examination of your federal income tax return. Common recipients include:

• Audited Sole Proprietors and Gig Workers: Individuals who reported business income or deductions on Schedule C and received an audit notice (such as Letter 566 or Notice CP75).
• EITC Claimants with Business Income: Taxpayers who claimed the Earned Income Tax Credit based on self-employment earnings and must prove their business is active and genuine.
• Filers Reporting Substantial Business Losses: Taxpayers who claimed significant business deductions that offset other taxable income (such as W-2 wages or spousal income).
• Businesses with High Expense-to-Income Ratios: Taxpayers whose reported operating deductions are unusually high compared to gross revenue, or who reported round-number estimates for travel, supplies, or vehicle expenses.

Who Is Exempt / Not Required to File?

Most taxpayers will never encounter Form 11652. You are exempt or not required to submit this form under the following conditions:

• No IRS Audit Inquiry: If you did not receive Form 11652 in the mail from an IRS examiner, you do not file it. It is not an attachment for annual tax returns.
• Incorporated Businesses: C corporations and S corporations file separate corporate returns (Form 1120 or Form 1120-S) and are audited under different procedures.
• W-2 Wage Earners: Individuals whose income consists exclusively of standard employment wages with no Schedule C business filings.
• Unchallenged Tax Returns: Sole proprietors whose Schedule C filings were processed and accepted by the IRS without an audit examination.

When to File Form 11652

Form 11652 does not follow the standard April 15 annual tax filing calendar. It is an event-driven compliance document triggered by an active IRS examination notice.

The response deadline is set by the examining agent and will be clearly printed on the cover letter accompanying the questionnaire—typically 30 calendar days from the date of the notice. Failing to respond by this deadline can result in the IRS automatically disallowing all of your claimed business expenses, reducing or eliminating your tax refund, revoking your Earned Income Tax Credit, and assessing substantial back taxes, penalties, and interest.

Where and How to File

Form 11652 cannot be submitted through consumer tax preparation software or standard electronic filing portals. It must be returned directly to the specific IRS examination unit handling your audit.

Look at the top of the form or the accompanying IRS cover letter for the section labeled “In reply refer to:”. Complete the form, attach clear copies of all requested receipts, bank records, and invoices, and transmit the package via secure fax or certified mail with delivery tracking to the designated IRS address as per instructions on your examination notice. If your notice includes an access code for the IRS Document Upload Tool, you may also upload digital scans of your completed form and records securely online.

Step-by-Step Instructions to Fill Form 11652

Form 11652 is a two-page document structured into basic business identification, operational descriptions, revenue verifications, and recordkeeping checklists.

Header Information

Enter your full legal name, Social Security Number (SSN), business physical address, home telephone number, business telephone number, and business website URL (if applicable). Ensure your name and SSN match the information on your filed tax return.

Section-by-Section Breakdown

Question Number	Form Focus	Filing Directions
Question 1	Business Description	Provide a clear, detailed narrative describing your business. Detail the type of work performed, products sold, services provided, typical hours of operation, and physical locations where you conduct business.
Question 2	Form 1099 Verification	Check Yes or No whether you received Forms 1099 (1099-NEC, 1099-MISC, or 1099-K) for the income reported. Attach copies of all 1099s received.
Question 3	Non-1099 Income Records	If you did not receive 1099s (such as receiving cash or customer checks), submit copies of sales logs, customer receipt books, or bank deposit slips showing customer names, dates, amounts, and customer TINs if available.
Question 4	Licenses & Permits	Check Yes or No whether you held a business license, occupational permit, or local registration. Attach copies of valid permits or explain why your trade does not require one.
Question 5	Advertising & Marketing	Disclose how you advertised your business. Provide samples such as business cards, website links, social media business pages, local flyers, or phone directory listings.
Question 6	Recordkeeping Checklist	Check all boxes indicating the types of records you keep (accounting software, bank accounts, paid receipts, mileage logs, rental contracts, ledgers). Attach copies of these supporting records.
Signatures	Perjury Declaration	Sign and date the form under penalties of perjury, certifying that all statements and attached exhibits are true, correct, and complete.

Required Documents and Information Needed Before Filling

To substantiate your answers and satisfy IRS audit standards, assemble the following records before completing Form 11652:

• Filed Form 1040 & Schedule C: A complete copy of your filed tax return for the tax year under examination.
• All Forms 1099 Received: Copies of Form 1099-NEC, Form 1099-MISC, and Form 1099-K from clients, payment processors, or platform apps.
• Business Bank & Merchant Statements: Monthly bank statements and electronic payment ledgers (PayPal, Stripe, Square) showing client deposits.
• Itemized Expense Receipts: Vendor receipts, bills, and invoices showing the date, vendor name, amount, and specific business item purchased (bank statements alone do not prove what was purchased).
• Vehicle Mileage Logs: Contemporaneous mileage logs showing dates, business destinations, business purpose, and total miles driven if claiming car or truck expenses.
• Proof of Business Existence: Business cards, municipal business licenses, state entity filings, or commercial advertising proof.

Common Mistakes to Avoid

Schedule C audits frequently result in disallowed deductions due to preventable paperwork mistakes. Watch out for these common errors:

• Sending Bank Statements Instead of Receipts: Submitting bank or credit card statements alone. Bank statements prove that money was paid, but they do not prove *what* was bought or that it was a legitimate business expense. You must provide itemized receipts.
• Sending Original Documents: Mailing original receipts or certificates. The IRS can misplace documents during transit or scanning; always send clear photocopies and keep your original records in your files.
• Providing Vague Business Descriptions: Writing generic one-word descriptions like “consulting” or “sales.” You must explain your daily tasks, who your clients are, and how you deliver services.
• Failing to Account for Cash Income: If you accepted cash payments, failing to provide daily sales ledgers, appointment calendars, or bank deposit records will lead examiners to question your gross revenue.
• Filing Unprompted: Attaching Form 11652 to your routine annual tax return. Form 11652 is strictly an examination questionnaire and should only be submitted when requested by the IRS.

Penalties for Non-Filing or Errors

Failing to respond to Form 11652 or submitting inaccurate records carries severe financial and regulatory consequences:

• Complete Disallowance of Expenses: If you ignore Form 11652, the IRS will disallow all of your Schedule C business expenses, taxing 100 percent of your gross revenue.
• Loss of the Earned Income Tax Credit: If your Schedule C income supported an EITC claim, disallowing your business will eliminate the credit. If the IRS finds reckless disregard or fraud, you can face a two-year or ten-year ban from claiming the EITC under IRC Section 32(k).
• Stricter Accuracy-Related Penalties (IRC Section 6662): Underpaying income or self-employment tax due to unverified business expenses triggers a mandatory 20 percent penalty on the underpaid amount.
• Failure-to-Pay Penalties and Interest: Resulting tax balances trigger penalties under Section 6651 (0.5 percent per month, up to 25 percent) and daily compounding interest under Section 6601.
• Perjury Prosecution: Form 11652 is signed under penalties of perjury. Intentionally fabricating business receipts constitutes a federal crime under Title 18 of the United States Code.

Related Forms and Schedules

Form 11652 operates within the core small business and audit compliance network:

• Schedule C (Form 1040): Profit or Loss From Business (the primary return under audit).
• Schedule SE (Form 1040): Self-Employment Tax.
• Form 886-H-EIC: Documents You Need to Send to Prove You Can Claim the Earned Income Credit.
• Form 1099-NEC / Form 1099-K: Nonemployee compensation and payment settlement statements.
• Notice CP75 / Letter 566: The official IRS audit notification letters that accompany Form 11652.
• Form 4564: Information Document Request (the cover notice used by examiners to request records).

Frequently Asked Questions

Why did the IRS send me Form 11652?

The IRS sends Form 11652 when an examiner audits your tax return and needs proof that the business reported on Schedule C is an active commercial operation, that your gross income was reported accurately, and that your claimed expenses are backed by receipts.

What if I was paid in cash and did not receive Forms 1099?

If you were paid in cash, you must provide written proof of your income records on Question 3. Acceptable records include daily appointment logs, customer invoices, signed cash receipt books, or personal bank statements showing consistent cash deposits.

Can bank statements substitute for missing expense receipts?

No. Under IRS audit standards, bank or credit card statements only show where money was spent, not what was purchased. To substantiate a business deduction, you must provide itemized store receipts, vendor invoices, or paid contracts detailing the specific items bought.

Can I request an extension of time to complete Form 11652?

Yes. If you need more time to gather receipts or bank statements, call the telephone number listed at the top of your IRS audit letter before your 30-day deadline expires. Examiners will typically grant a 30-day extension upon request.

Why is Form 11652 frequently linked to the Earned Income Tax Credit (EITC)?

Because EITC eligibility and credit amounts depend directly on earned income, some taxpayers report fabricated business income to claim larger refunds. The IRS uses Form 11652 to ensure that self-employed workers claiming the EITC are running legitimate businesses.

Should I send my original receipts to the IRS?

No. Never mail your original receipts, mileage logs, or licenses to the IRS. Send clear photocopies or digital PDF scans, and keep the original documents securely stored in your personal files.

Conclusion – Key Takeaways Summarized

IRS Form 11652 is the primary audit questionnaire used by the IRS to verify Schedule C business income, expense deductions, and related tax credits. It ensures that self-employment deductions are supported by verifiable records and that claimed businesses are authentic commercial operations.

If you receive Form 11652, do not ignore it. Respond before your 30-day deadline, answer all questions thoroughly, compile itemized receipts and bank records, submit only photocopies or digital scans, sign the perjury declaration, and deliver the complete response directly to the assigned IRS examination office.