Don’t panic: 4 serious mistakes to avoid when filing your taxes today at 11:59 PM

4 last-minute mistakes taxpayers should avoid

1. Spelling is important

Even if there’s a tiny typo in your name, social Security Number or bank details may result in returns being refused or delayed. Make sure all personal information exactly matches official records.

2. Don’t miss your signature

For those filing manually, forgetting to sign a tax return may render it invalid. If you submit electronically, please be sure to complete the digital verification process with the correct PIN or credentials.

3. Include all sources of income

One of the most common mistakes is failing to report all sources of income. This includes freelancing, side hustles, investments, or rental income. Missing any revenue may trigger a notification or audit later.

4. Check application status carefully

Choosing the wrong filing status: single, married filing jointly, or head of household, for example, can affect your tax liability and refund. Please review qualifications carefully before filing your tax return.

What happens if your return is rejected at the last minute

For each month your return is late, the IRS penalty for failing to file is 5% of the tax owed, up to a maximum of 25% of the unpaid tax. If your return is more than 60 days late, the minimum penalty for a 2026 return is $525, or 100% of the unpaid tax, whichever is less.