IRS Publication 3953 – IRS Forms, Instructions, Pubs 2026 – If your business has received a Notice of Employment Tax Determination from the IRS reclassifying workers as employees (instead of independent contractors), you have important legal rights — including the ability to petition the U.S. Tax Court. IRS Publication 3953 (Rev. October 2017) is the official IRS resource that answers every key question about this process under Internal Revenue Code (IRC) Section 7436.
This free 4-page guide remains the current authoritative publication as of 2026, listed on IRS.gov’s employment tax publications page (last reviewed July 2025) and forms catalog.
Download it directly here: https://www.irs.gov/pub/irs-pdf/p3953.pdf
What Is IRS Publication 3953?
Publication 3953 — titled Questions and Answers About Tax Court Proceedings for Determination of Employment Status Under I.R.C. 7436 — explains your rights after the IRS issues a formal Notice of Employment Tax Determination Under IRC § 7436.
It covers:
- Worker classification disputes (employee vs. independent contractor)
- Denial of Section 530 safe-harbor relief
- Resulting employment tax assessments (FICA, FUTA, federal income tax withholding)
- How to file a petition in U.S. Tax Court
- Deadlines, representation, small-case procedures, interest rules, bankruptcy impacts, and more
The publication is designed for small business owners, employers, and tax professionals facing reclassification audits.
Why IRC Section 7436 Matters for Employers?
IRC § 7436 gives the U.S. Tax Court jurisdiction to review three specific IRS determinations:
- Whether individuals providing services are employees.
- Whether you qualify for relief under Section 530 of the Revenue Act of 1978.
- The amount of employment taxes, additions to tax, and penalties due.
Without a timely Tax Court petition, the IRS can assess the full amount and begin collection. Publication 3953 walks you through every step to protect your rights.
Key Questions Answered in IRS Publication 3953
1. What is a Notice of Employment Tax Determination Under IRC § 7436?
It is the official legal notice that starts the 90-day (or 150-day for overseas) clock to petition Tax Court. It covers employment status, Section 530 relief, and the exact tax amounts proposed.
2. When does the IRS issue this notice?
After an audit determines workers should be classified as employees, you don’t qualify for Section 530 relief, or both — plus the resulting additional employment taxes.
3. Can these determinations be reviewed?
Yes. You can ask the Tax Court for a completely independent (“de novo”) review. You must present evidence even if you already gave it to the IRS during the audit.
4. What is the deadline to file a Tax Court petition?
Generally, before the 91st day after the notice is mailed (certified or registered mail). The exact “Last Date to Petition Tax Court” appears on the first page of your notice. Contacting the IRS or Tax Court does not extend this deadline.
5. How do you file a petition?
- Use the petition form from www.ustaxcourt.gov
- Check the box for “Determination of Worker Classification”
- Attach a copy of the Notice + all schedules
- Mail to: United States Tax Court, 400 Second Street, NW, Washington, DC 20217
- Postmark by the deadline (U.S. Postal Service or designated private delivery service)
6. Who can represent you in Tax Court?
- Yourself (if an individual)
- An authorized officer (corporation) or member (association)
- A fiduciary (estate/trust)
- Any attorney or CPA admitted to practice before the Tax Court
7. Can you use the Tax Court’s simplified “small case” procedures?
Yes — if the amount in dispute is $50,000 or less per calendar quarter. The IRS can oppose the election. Details and forms are on the Tax Court website.
8. What happens if you don’t file a petition?
- You can sign the enclosed Form 2504-T waiver to stop interest from growing and allow quick assessment.
- If you do nothing, after 90 days the IRS must assess the taxes, penalties, and interest and send a bill.
- You can still challenge the assessment later via a refund suit in U.S. District Court or Court of Federal Claims — but you must first pay the tax for one worker for one period and file a refund claim.
9. How does interest work?
Interest accrues daily on unpaid employment taxes, penalties, and prior interest. C-corporations with underpayments of $10,000+ face an extra 2% under IRC § 6621(c).
10. What if you’re in bankruptcy?
Special rules apply under the automatic stay (Bankruptcy Code § 362). Publication 3953 provides detailed examples showing how the 90-day period is extended or adjusted. Filing a Tax Court petition while the stay is in effect makes it void.
11. How do you contact a Taxpayer Advocate?
Call 1-877-777-4778 or visit irs.gov/advocate. The Advocate can expedite handling but cannot change legal determinations or extend Tax Court deadlines.
Practical Tips from IRS Publication 3953
- Act immediately — the deadline is strict and non-extendable.
- Keep a copy of everything mailed to the Tax Court.
- Consider professional representation for complex cases.
- Review Pub 5146 (Employment Tax Returns: Examinations and Appeal Rights) for the full audit-to-appeal process.
Who Should Read Publication 3953?
- Businesses audited for worker classification
- Employers who received Letter 3523 or a Notice of Employment Tax Determination
- Payroll service providers and tax professionals handling reclassification cases
- Anyone considering a Tax Court petition under IRC § 7436
Final Thoughts: Protect Your Business with Timely Action
IRS Publication 3953 is a concise but powerful tool that levels the playing field when the IRS challenges your worker classifications. Understanding your Tax Court rights under IRC Section 7436 can save your business significant money and stress.
Download the latest official PDF today (still current as of 2026):
IRS Publication 3953 PDF
For case-specific advice, contact the IRS examiner named on your notice, consult a qualified tax attorney or enrolled agent, or reach the Taxpayer Advocate Service.
Need more help with employment tax issues?
Visit the IRS Small Business & Self-Employed section or search IRS.gov for “worker classification” and “Section 530 relief.”
All information is based directly on IRS Publication 3953 (Rev. 10-2017) and current IRS.gov listings (2025–2026). Always verify deadlines with your specific notice and consult a tax professional for your situation.