Index/Topics/Federal safe harbors for underpayment penalties

Federal safe harbors for underpayment penalties

The Internal Revenue Service allows taxpayers to avoid federal estimated-tax penalties if they pay at least 90% of the current year's tax or 100% of the prior year's tax

Fact-Checks

11 results
Jan 24, 2026
Most Viewed

Did the IRS send $2000.00 to tax payers in January

No, the did not send a universal payment to all taxpayers in January; what occurred was a mix of routine refunds, targeted refund adjustments and individual credit reconciliations that in some cases p...

Jan 29, 2026
Most Viewed

Can protesters claim protest-related expenses as tax deductions in the USA?

Protesters cannot generally deduct ordinary on their federal income taxes, and attempts to claim political or protest activity as a tax write‑off can trigger penalties; a narrow exception exists when ...

Jan 29, 2026
Most Viewed

What changes to Forms W‑2 and 1099 are expected for reporting qualified tips and overtime beginning in tax year 2026?

Beginning with tax year 2026 the will revise W-2 and multiple 1099 forms so employers and payers must separately report qualified tips and qualified overtime compensation, a change driven by the and i...

Jan 18, 2026

How do I compute the estimated tax penalty for a specific missed 2025 quarter using Form 2210?

Computing the underpayment penalty for a specific missed 2025 estimated-tax quarter requires three actions: determine the tax that should have been covered for that quarter under the IRS “required ins...

Jan 22, 2026

What specific tax changes and deficit estimates are contained in the Inflation Reduction Act as scored by CBO and independent budget analysts?

The (IRA) bundled several tax-law changes — most notably a new , a , and roughly funding intended to raise compliance revenue — and was scored as deficit-reducing by some official and independent scor...

Feb 3, 2026

How can taxpayers avoid underpayment penalties?

underpayment penalty comes down to predictable actions: pay enough tax during the year either through withholding or timely estimated payments, rely on when appropriate, and use special provisions for...

Feb 2, 2026

When does the IRS waive underpayment penalties?

will waive or reduce underpayment of in limited, specific circumstances—chiefly when the underpayment results from a casualty, federally declared disaster, or other unusual circumstance that makes the...

Jan 25, 2026

How do income changes during the year affect whether I should use 100% or 110% of last year’s tax?

Income swings during the year change how much will be withheld from paychecks under ’s updated and can make last year’s total-tax benchmark either too high or too low for avoiding underpayment—taxpaye...

Jan 21, 2026

What legal or administrative limits exist on how IRS enforcement resources may be allocated to audit taxpayers under $400,000?

The principal constraint on using new enforcement resources to audit taxpayers with incomes below is an administrative directive — not a law — instructing the IRS to keep audit rates for those taxpaye...

Jan 21, 2026

how many illegals receive social security numbers?

Public records show a sharp rise in Social Security numbers (SSNs) issued to noncitizens in recent years—roughly 590,000 in fiscal year 2022 and about 964,000 in 2023, with reporting around 1 million ...

Jan 17, 2026

How does changing withholding on Form W‑4 during the year affect estimated tax penalty liability?

Changing withholding on Form W‑4 during the year is one of the quickest ways to reduce or eliminate the IRS’s underpayment (estimated tax) penalty because withholding counts as tax paid evenly through...