Late filing of tax returns often results in a 5% penalty on unpaid taxes per month (up to 25% max), interest on unpaid amounts, and a minimum $525 fee if over 60 days late. Other consequences include potential criminal prosecution for willful neglect, loss of refunds, and delays in loan approvals.
You might have to pay IRS penalties and interest if you file your federal income tax return after the April deadline, your due date isn't extended, and you end up with a tax bill. First, the IRS charges a 5% penalty per month on any tax due if your return is filed late. The penalty is capped at 25% of the tax owed.
Penalty for Late Filing of ITR for FY 2024-25 (AY 2025-26) The last date to file your Income Tax Return (ITR) for Financial Year 2024–25 (Assessment Year 2025–26) is 16 September 2025. If you miss this deadline, a late filing fee of Rs. 5,000 will apply.
Interest will be charged on late payments after this date. If HMRC have asked you to complete a tax return for 2024/25, and you miss the deadline, you'll automatically be fined regardless of how small your tax liability is. A penalty will also apply if you are due a refund.
If you file taxes after the October 15 extension deadline, the IRS will assess penalties and interest, primarily a failure-to-file penalty (5% per month, max 25%), plus a separate failure-to-pay penalty (0.5% per month) and daily interest on the unpaid taxes, though you can request penalty abatement for reasonable cause like natural disasters. The October deadline is for filing, not paying; if you owe, payment was due in April, so you'll likely face both penalties and interest until you file and pay, but you won't be penalized if you're due a refund.
You can avoid a penalty by filing and paying your tax by the due date. If you can't do so, you can apply for an extension of time to file or a payment plan.
In addition to a fine, the ATO can also apply General Interest Charges (GIC), on any amount still owing. Note: The rate for GIC changes quarterly. At the time of writing this article, the rate is 10.61% per annum (October – December 2025).
A reasonable excuse is something that stopped you meeting a tax obligation for a valid reason, for example: your partner or another close relative died shortly before the tax return or payment deadline. you had an unexpected stay in hospital that prevented you from dealing with your tax affairs.
According to the IRS, First-Time Abatement (FTA) is an administrative waiver that can be applied to failure-to-file, failure-to-pay, or failure-to-deposit penalties. A first-time abatement waiver is only available for the failure-to-file, failure-to-pay, and failure-to-deposit penalties.
If you don't file taxes for a year and owe money, you face significant penalties and interest, including a 5% per month failure-to-file penalty (up to 25%), a separate failure-to-pay penalty, and accruing interest, potentially leading to wage garnishment, bank levies, and even criminal charges in extreme cases; however, if you are due a refund, there's no penalty, but you must file within three years to claim it.
It takes approximately 6 weeks for us to process an accurately completed past due tax return.
The 12 Most Common Income Tax Filing Mistakes to Avoid
Sound reasons, if established, include:
No, you generally cannot skip a year of filing taxes if you meet the IRS filing requirements (income thresholds, self-employment earnings, etc.), as it's a legal obligation that can lead to significant penalties and interest if you owe taxes, though you might not need to file if your income is below the standard deduction and you have no other filing triggers. It's always better to file a late tax return (even if you can't pay immediately) to avoid penalties, especially if you're owed a refund, which you can lose if you file more than three years late.
One-time forgiveness, officially known as First-Time Penalty Abatement (FTA), is an IRS program that allows qualified taxpayers to have certain penalties removed from their tax accounts.
You may qualify for penalty relief if you demonstrate that you exercised ordinary care and prudence and were nevertheless unable to file your return or pay your taxes on time. Examples of valid reasons for failing to file or pay on time may include: Fires, natural disasters or civil disturbances.
The IRS 7-year rule primarily applies to keeping records for claiming a deduction for bad debts or losses from worthless securities, allowing a longer period to file for a credit or refund, but it's not a universal audit limit; it's often a recommended safe buffer for general record-keeping, with the standard IRS audit period usually being 3 years, extending to 6 years for substantial income omission (over 25%) or foreign income issues, and indefinitely for fraud.
If you don't owe taxes, not filing means no penalties, but you lose out on refunds and credits, like the Earned Income Tax Credit, and can delay benefits like Social Security or loans; you typically have three years to file and claim a refund, but you must file to get your money back. The IRS won't penalize you for late filing if no tax is due, but you won't receive any overpayments or refundable credits until you file.
“Reasonable Excuse” Appeal against a Late Tax Return Penalty. Late filing penalties can be cancelled if you has a “reasonable excuse” for the late filing. Prior to an appeal being lodged, the taxpayer must send a tax return or have told HMRC that there is no need to complete one.
If you owe tax and don't file on time (with extensions), there's also a penalty for not filing on time. The failure-to-file penalty is usually five percent of the tax owed for each month, or part of a month, that your return is late, up to a maximum of 25%.
The biggest tax mistakes people make include filing late, math errors, incorrect personal info (like Social Security numbers), forgetting deductions/credits (like EITC), misreporting income, not signing forms, and making errors with bank details for direct deposit, all leading to delays, penalties, or missed savings, with using tax software or professionals helping avoid these common pitfalls.
At a glance
The minimum income amount to file taxes depends on your filing status and age. For 2025, the minimum income for Single filing status for filers under age 65 is $15,750 . If your income is below that threshold, you generally do not need to file a federal tax return.