If you’ve just opened a piece of mail from the IRS and saw “Notice 1421” or “Section 1421,” don’t panic. You haven’t necessarily done anything wIf you just opened IRS mail that mentions “Notice 1421,” don’t panic. It doesn’t mean you did something wrong, but it does involve a deadline you need to understand.
One clarification first: the IRS does not send a “Section 1421 notice.” The document you have is IRS Notice 1421, officially titled “How Bankruptcy Affects Your Right to File a Petition in Tax Court in Response to a Notice of Deficiency.” “Section 1421” refers to something unrelated: the part of the Affordable Care Act behind a small-employer health insurance credit, which we cover further down.
And yes, 2026 adds another layer. The One Big Beautiful Bill Act (OBBBA), signed July 4, 2025, changed several parts of the tax code, so we cover the changes most likely to show up on your return at the end.
IRS Notice 1421 and the bankruptcy “pause”
If you’re in bankruptcy and the IRS sends you a notice of deficiency (your “ticket to Tax Court”), it includes Notice 1421. The insert explains why you usually can’t go to Tax Court yet, and how your deadline is calculated once you can.
Why you’re getting a notice during bankruptcy
Filing for bankruptcy triggers an “automatic stay” under 11 U.S.C. § 362, effective on your petition date. It stops most collection actions. It also bars you from starting or continuing a Tax Court case over your pre-bankruptcy taxes. For individuals, that means tax years that ended before you filed. Tax years that end after you file, which generally includes the year you file in, are not paused: for those, you must petition by the date printed on the notice.
The stay does not stop the IRS from auditing you or issuing a notice of deficiency. That’s why these notices still arrive. The IRS then parks your case in “bankruptcy suspense” until the stay ends.
What Notice 1421 does and doesn’t mean
- It isn’t the start of an audit. A notice of deficiency usually comes at the end of an examination or an automated income-matching review. It is the IRS’s formal proposal to assess more tax.
- Interest and penalties keep growing. The stay pauses deadlines, not the meter.
- The wait can be long. The Taxpayer Advocate Service reports that cases in bankruptcy suspense sit there about three years on average.
- Repeat filers may get little or no stay. With one prior case dismissed in the past year, the stay ends after 30 days unless the court extends it. With two or more, there is no stay unless the court imposes one.
- A non-filing spouse isn’t covered. If you filed a joint return but only one spouse is in bankruptcy, the other spouse’s 90-day clock keeps running.
How to calculate your Tax Court deadline
Your deadline depends on one question: was the automatic stay already in effect on the date printed on your notice of deficiency? Under IRC § 6213(f), the clock is suspended while the stay blocks you from filing, and you get 60 extra days after it ends.
If the stay was already in effect on the notice date, you get the full 90 days plus 60, or 150 days after the stay ends. If the notice was mailed to an address outside the U.S., that becomes 210 days.
If you filed bankruptcy partway through your 90 days, you get the days you had left plus 60.
If the tax year ended after you filed bankruptcy, nothing is paused: use the date printed on the notice.
Example 1: Your notice is dated March 2, 2026, while your Chapter 7 case is open. You receive your discharge on August 14, 2026. You have 150 days from August 14, so your last day is January 11, 2027.
Example 2: Your notice arrives before bankruptcy, and you file your bankruptcy petition 30 days later. You had 60 days left, so once the stay ends you have 60 + 60 = 120 days.
If your last day falls on a weekend or a Washington, D.C. legal holiday, it moves to the next business day.
When does the stay end?
It’s not just dismissal or discharge. The stay ends at the earliest of these:
- Your bankruptcy case is closed
- Your case is dismissed
- A discharge is granted or denied
- The bankruptcy court lifts the stay early at your request
Timing varies by chapter. In Chapter 13, the discharge usually comes only after a three- to five-year plan. In Chapter 11, the Tax Court has held that plan confirmation alone generally doesn’t end the stay.
Your options, step by step
- Keep the notice of deficiency and Notice 1421 together. Write down the notice date and your bankruptcy petition date.
- Sort the tax years. Years that ended before your petition are paused; later years are not.
- Choose where to fight. You can wait for the stay to end and petition the Tax Court. You can ask the bankruptcy court to lift the stay so you can go now. Or you can contest the tax in bankruptcy court by objecting to the IRS’s proof of claim or asking the court to decide the tax under 11 U.S.C. § 505.
- Know that the bankruptcy court route is final. Once the bankruptcy court decides the tax, the Tax Court can no longer hear the same dispute.
- Don’t file in Tax Court while the stay is in effect unless the bankruptcy court has lifted it. The Tax Court may dismiss your petition for lack of jurisdiction.
- Watch your mail, but do your own math. The IRS created Letter 6285 (Stay Lifted) to tell taxpayers their last day to petition, plus Letter 6262 as a yearly reminder. Track the date yourself anyway; a missed deadline usually can’t be undone.
Section 1421 and the Small Business Health Care Tax Credit
Section 1421 of the Affordable Care Act created the Small Business Health Care Tax Credit, now in the tax code as IRC § 45R. It’s a credit small employers claim, worth up to 50% of employee premiums (35% for tax-exempt employers). The IRS never mails it to you as a notice.
2026 eligibility
For the full credit, you need 10 or fewer full-time equivalent (FTE) employees and average annual wages of $34,100 or less per FTE. A partial credit is available with more than 10 but fewer than 25 FTEs, or with average wages above $34,100 but below $68,200. At 25 FTEs or $68,200 in average wages, the credit disappears.
Both tests matter. A business with low wages but 20 FTEs still gets a reduced credit, because the credit shrinks as either number rises.
Other requirements
- Pay at least 50% of employee-only coverage. The test is based on the cost of single coverage, not family or dependent coverage.
- Buy through SHOP. You generally must offer a qualified health plan through the Small Business Health Options Program (SHOP) Marketplace, with limited exceptions. SHOP plans aren’t sold in many parts of the country, so check availability before you count on the credit.
- Two years only. The credit is available for two consecutive tax years. Plan which years you claim it.
- Owners don’t count. Sole proprietors, partners, more-than-2% S corporation shareholders, more-than-5% owners and their family members are left out of the FTE count, the wage average and the premiums.
- Claim it on Form 8941. Businesses add it to the general business credit. Tax-exempt employers claim it on Form 990-T, where it can be refundable.
Premiums above the credit amount can generally still be deducted as a business expense.
2026 tax changes under the OBBBA worth knowing
None of these changes alter your Notice 1421 deadline or the small-employer credit rules. They do change what your 2026 return looks like, so they’re worth checking if the IRS questions a return.
- Tax rates: The 10% to 37% brackets from the 2017 tax law are now permanent.
- Standard deduction: $16,100 for single filers, $32,200 for married couples filing jointly and $24,150 for heads of household, up from $15,750, $31,500 and $23,625 in 2025. It stays indexed for inflation.
- Overtime deduction: Up to $12,500 ($25,000 joint) of qualified overtime premium pay, for 2025 through 2028 only.
- Tips deduction: Up to $25,000 of qualified tips in occupations that customarily received tips by December 31, 2024, also for 2025 through 2028 only.
The fine print on “no tax on overtime”
- Only the premium counts. You deduct the extra pay federal law requires above your regular rate, generally the “half” in time-and-a-half. Extra overtime paid only because of state law or a union contract doesn’t qualify.
- It phases out. The deduction shrinks once modified adjusted gross income passes $150,000 ($300,000 joint). The tips deduction phases out at the same levels.
- Eligibility rules apply. You need a Social Security number valid for employment, and married couples must file jointly.
- It’s a deduction, not an exemption. Overtime is still subject to Social Security and Medicare tax, and many states still tax it.
- Check how it was reported. Employers report qualified overtime on Form W-2. A transition rule meant many 2025 W-2s didn’t show it separately, so 2025 amounts may need to be worked out from pay records under IRS Notice 2025-69. Keep those records in case the IRS asks.
Frequently asked questions
What’s the difference between Notice 1421 and Section 1421?
Notice 1421 is an IRS insert for taxpayers in bankruptcy. Section 1421 is the part of the Affordable Care Act that created the small business health insurance credit (IRC § 45R). One is a deadline to protect; the other is a credit to claim.
Does Notice 1421 mean I’m being audited?
Not exactly. It comes attached to a notice of deficiency, which usually means the audit or automated review has already happened and the IRS is formally proposing more tax. Notice 1421 explains how your bankruptcy affects your right to challenge that proposal in Tax Court.
How do I calculate my Tax Court deadline after bankruptcy?
If the stay was in effect on the notice date, you have 150 days after the stay ends (90 plus 60), or 210 if the notice was mailed outside the U.S. If you filed bankruptcy partway through your 90 days, you get the days you had left plus 60. Tax years that ended after you filed bankruptcy aren’t paused at all.
Can I go to Tax Court while I’m still in bankruptcy?
Only if the bankruptcy court lifts the stay first. Otherwise, the Tax Court may dismiss your petition. You can also ask the bankruptcy court to decide the tax itself, but that decision is final.
What are the 2026 limits for the Section 1421 (45R) credit?
The full credit requires 10 or fewer FTEs and average annual wages of $34,100 or less. The credit shrinks as either number rises and disappears at 25 FTEs or $68,200 in average wages. You can claim it for only two consecutive years.
Is overtime pay tax-free now?
Not entirely. For 2025 through 2028, you can deduct up to $12,500 ($25,000 joint) of the overtime premium from federal income tax. Social Security, Medicare and many state taxes still apply.
Bottom line
Start by identifying what you actually have. If it’s IRS Notice 1421, your job is to protect a deadline: know when your bankruptcy stay ends, count forward the right number of days, and don’t file in Tax Court too early. If you were searching for “Section 1421” as a small business, you’re looking at a credit to claim, not a notice to answer.
Timing is everything. Don’t let a bankruptcy “stay” turn into a permanent loss of your right to challenge the IRS.
Disclaimer: Tax laws change frequently. This article is for educational purposes only and is not tax or legal advice. Figures are current as of October 2026.
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