If you requested an extension to file your 2025 federal income tax return, October 15, 2026, is an important date.
But there is one point that often confuses:
The extension gave you more time to file your return. It did not give you more time to pay the tax you owed.
For most taxpayers, any 2025 federal income tax due was still payable by April 15, 2026. If you have not yet filed because you know you owe more than you can currently pay, waiting longer may not improve the situation.
The better approach is usually to separate two questions:
- Can you complete and file the return by October 15?
- How will you address the balance you cannot pay immediately?
Those are related issues, but they are not the same problem.
October 15 Is a Filing Deadline — Not a New Payment Deadline
The IRS has been reminding extension filers not to wait until the last minute. In its August 26, 2026 announcement, the IRS encouraged taxpayers who requested an extension to file their 2025 federal tax return as soon as possible rather than waiting until October 15. An extension protects the additional time you received to prepare and file the return. It does not postpone the original payment obligation. That distinction becomes especially important if you expect to owe money. If your return is ready, avoiding the filing simply because you cannot pay everything at once can create another problem on top of the existing tax balance.
File the Return Even If You Cannot Pay the Full Balance
The IRS specifically advises taxpayers who cannot pay in full to still file and pay as much as they can. Filing the return establishes what you actually owe based on the completed return. From there, you can look at the balance more clearly and decide what payment or resolution path may fit your circumstances. You do not necessarily need to solve the entire tax-debt problem before filing your return.
The immediate priorities are:
- complete the return accurately;
- file it within the applicable deadline;
- determine the amount you owe;
- pay what you reasonably can; and
- review the available options for the remaining balance.
If you already made estimated payments or paid an amount when requesting the extension, those payments should also be considered when determining the remaining balance.
Paying Something Can Still Matter
If you cannot pay the entire amount, the IRS advises taxpayers to pay as much as they can. That is important because unpaid federal tax can continue to accumulate interest and applicable late-payment penalties. Waiting until you can afford to pay everything at once may therefore be a poor strategy. Instead, understand the amount due and determine what you can realistically pay now without making assumptions about what the IRS will accept for the remainder.
What If You Need More Time to Pay?
The IRS provides several possible routes for taxpayers who cannot immediately pay their full balance.
IRS Payment Plan
A payment plan allows qualifying taxpayers to pay an IRS balance over time rather than in one payment. The appropriate arrangement depends on the amount owed, the taxpayer’s circumstances and whether IRS filing and payment requirements have been met. If you believe you can repay the balance over time, this may be one of the first options to review. Learn more about how payment arrangements work through IRS Audit Group’s IRS Payment Plan guidance.
Offer in Compromise
For some taxpayers facing a more significant financial problem, an Offer in Compromise may be worth evaluating. An Offer in Compromise allows qualifying taxpayers to settle a federal tax debt for less than the full amount owed. It is not available simply because paying the tax is inconvenient, and qualification depends on the taxpayer’s financial circumstances and IRS requirements. If your tax balance appears to be beyond what you can realistically repay, learn more about Offer in Compromise before assuming that a standard installment arrangement is your only option.
Temporary Collection Delay
The IRS may also temporarily delay collection when a taxpayer cannot pay because doing so would prevent the person from meeting basic living expenses. This does not eliminate the tax debt. Interest and applicable penalties can continue while collection is delayed. This type of situation normally requires a closer review of income, expenses, assets, and overall financial circumstances.
Already Receiving IRS Notices? Do Not Treat Them as Routine Mail
For some extension filers, the concern is no longer just an unpaid balance. They may already be receiving IRS notices relating to prior tax years, existing balances, or other unresolved issues.
Read each notice carefully.
Look at:
- the tax year involved;
- the amount the IRS says is due;
- the response or payment deadline;
- whether the IRS is requesting information; and
- what action the notice says may occur next.
Do not assume that filing your 2025 return automatically resolves an older tax issue.
When several years, notices, or balances are involved, getting the situation organized before responding can prevent unnecessary confusion.
What Should You Do Before October 15, 2026?
If you requested a valid extension and still have not filed your 2025 return, focus on getting clarity rather than avoiding the problem. File the return. Confirm the balance. Pay what you can. Then review the right path for what remains. A tax balance does not automatically mean every taxpayer needs the same solution. One person may be able to manage an installment arrangement. Another may need a broader review of financial hardship or other available resolution options. The important point is to understand the situation before choosing a path.
IRS Audit Group Can Help You Review the Next Step
If you are approaching the October 15, 2026 filing deadline and already know you cannot pay the full amount, IRS Audit Group can help you review the situation in a structured way. That may include helping you understand the balance involved, reviewing relevant IRS notices, organizing the information needed to evaluate payment options, and determining which resolution paths may warrant further consideration.
Don’t Panic… But Don’t Delay!
Getting the return filed is one step. Understanding what to do with the unpaid balance is the next. Contact IRS Audit Group to discuss your situation and the next steps available to you.











