It is almost never "worth it" to file taxes late, as penalties and interest accrue, but filing as soon as possible, even late, is far better than not filing at all. The IRS (Failure to file penalty) imposes a 5% monthly penalty (up to 25% total) on unpaid taxes, while Jackson Hewitt experts note that if you are owed a refund, there is no penalty for filing late.
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.
The penalty is equal to 5 percent of the tax payable that was unpaid when the return was required to be filed and 1 percent of any such unpaid tax for each full month, not exceeding 12, that the return is late.
If you owe tax, it is never too late to file, and the sooner you file the better. Even if you can't pay, the penalty for not filing is ten times the penalty for not paying (both of which get bigger the longer you wait). File. File now. Do not wait. Never wait.
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).
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.
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.
Sound reasons, if established, include: Fire, casualty, natural disaster or other disturbances. Inability to obtain records. Death, serious illness, incapacitation or unavoidable absence of the taxpayer or a member of the taxpayer's immediate family.
Failure to file penalties
If you file your return late, a penalty applies. The penalty is 5% of the unpaid tax that is due on the filing deadline, plus 1% of this unpaid tax for each complete month that the return is late, up to a maximum of 12 months.
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.
Impact of Late Filing on Your Tax Refund
The IRS processes returns in the order received, so later submission naturally means a later refund. Additional processing may occur for late returns, which can further extend the time it takes to receive your refund.
If you don't file your tax return by the October 15 extension deadline, the IRS charges a failure-to-file penalty of 5% per month (up to 25%) on unpaid taxes, plus a failure-to-pay penalty (0.5% per month), and interest on the total amount due, potentially leading to significant costs, though you can request penalty abatement for reasonable cause, and if you're owed a refund, you generally won't face penalties but risk losing your refund if you wait too long (usually over 3 years).
Filing your tax return. The tax filing and payment deadline for most people is April 30 of the following year. If you file after April 30, you may be charged penalties and interest. If you are self-employed or filing for someone who has passed away, please see the CRA 's Filing due dates webpage for more information.
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.
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. you had a serious or life-threatening illness. your computer or software failed while you were preparing your online return.
Common tax return mistakes that can cost taxpayers
What happens if you refuse to file taxes? If penalties and interest aren't motivating enough and you outright refuse to file taxes, the IRS can enforce tax liens against your property or even pursue civil or criminal litigation against you until you pay.
Unreported income
The IRS receives copies of your W-2s and 1099s, and their systems automatically compare this data to the amounts you report on your tax return. A discrepancy, such as a 1099 that isn't reported on your return, could trigger further review.