2026 Estimated Tax Fourth Payment: Due January 15, 2027
The 2026 estimated tax fourth payment is due January 15, 2027, under the usual federal calendar-year schedule. Confirm your calculation, payment details and any applicable exception before submitting.
The 2026 estimated tax fourth payment is due January 15, 2027, under the usual federal calendar-year schedule. Use December to confirm your calculation, gather earlier payment records, and prepare the payment instruction. Check whether an exception or disaster relief applies to you, and verify any state deadline separately.
January 15 is the federal payment date
The IRS lists January 15, 2027, for the final estimated-payment period of calendar year 2026 in Publication 505. December 31 closes the year; it does not replace that January federal due date. The January payment still concerns the 2026 tax year.
This article is a preparation checklist for someone who already needs to make that payment. It does not determine whether you owe estimated tax or how much you should pay. Use current IRS instructions or your tax professional for that decision, including adjustments for income changes and prior payments.
Fiscal-year filers and certain other taxpayers have different rules. Relief for qualifying disaster areas can also affect deadlines. If you think an exception applies, confirm it against the current IRS guidance before changing your payment plan. Keep state estimated taxes as a separate task with the state's own instructions.
Collect the records your calculation needs
Find the calculation or payment schedule you have been using. Check whether it is the latest version, especially if your income or withholding changed after it was prepared. If an accountant provided it, ask whether the final payment requires an updated calculation.
Then gather the earlier federal estimated-payment confirmations for 2026. Match dates and amounts against the records you are using. A payment you planned to make is different from a payment you can document. Mark a missing receipt or unexplained difference for investigation instead of silently treating it as paid.
Keep federal and state records clearly labeled. If two payments went out near the same time, the bank statement alone may not tell you which tax authority or period each one covered. Retain the confirmation that explains the payment, along with the bank record.
| Record | What to confirm in December |
|---|---|
| Current calculation | Who prepared it and whether it needs updating |
| Earlier federal payments | Date, amount and confirmation for each |
| Payment instruction | Correct taxpayer, payment type and tax year |
| Funding account | The account you intend to use and access to it |
| Follow-up note | When you will verify the submitted payment |
Do not send a duplicate payment merely because you cannot find a receipt. First check the available payment records or ask the tax authority or your adviser how to investigate.
Use December for preparation, with your own check dates
Here is a sample planning schedule, not an IRS requirement: on December 10, gather the records and request any calculation update; on January 8, review the intended payment details; by January 15, complete the payment under the applicable instructions. Choose earlier preparation dates if your adviser or payment method needs more time.
Only January 15, 2027, in that example is the ordinary federal due date. The other dates are reminders you choose. If a confirmed exception changes your deadline, update both your written instruction and the reminder so they agree.
A vague calendar entry such as “taxes” leaves you to work out the task again. A more useful entry is “Review the 2026 fourth estimated payment instruction and confirm the tax year.” It points to the decision you need to make before sending money.
Review the payment fields before submitting
Use an official IRS payment route and follow the instructions displayed there. If you choose Direct Pay, the IRS Direct Pay help page walks through selecting the payment type and reason, entering the tax year, verifying identity, reviewing the payment and receiving confirmation.
For this payment, check the instruction against the 2026 tax year even though you are paying in January 2027. Keep the year used for identity verification distinct from the tax year receiving the payment. Direct Pay may use a prior return to verify who you are; that is a different purpose.
Before confirming, compare the amount, payment date and account information with your approved calculation and chosen payment method. If an accountant is submitting the payment for you, establish who will do it and who will keep the confirmation. “I thought you handled it” is an avoidable ambiguity.
Save the confirmation in a place you can return to. Direct Pay's help page explains how the confirmation number is used to look up a payment. Follow that process if you need to review its status rather than starting another payment from scratch.
Check what happened after submission
Keep a follow-up task until you have checked the payment status and bank activity. A scheduled instruction needs a later execution check. If the expected transaction does not appear or the details look wrong, investigate through the payment service or your tax professional.
Record the result beside the instruction: submitted, scheduled, or confirmed in the available records. Those labels make it easier to see what still needs attention when you return to your tax folder later.
You can save a redacted payment checklist yourself in dEssence and ask Tracy for preparation and follow-up reminders. Pro can extract dates and tasks from a supplied document. Keep account numbers, tax IDs and the full return out of a reminder that only needs a task name and date. Tracy does not calculate tax, access the IRS account or make the payment.
FAQ
When is the fourth estimated tax payment for 2026 due?
January 15, 2027, under the ordinary federal calendar-year schedule. Confirm any applicable exception or disaster relief and check your state's deadline separately.
Is the fourth estimated payment due December 31?
No, not under that federal schedule. December 31 is useful as a preparation checkpoint, but the listed fourth-payment deadline is January 15, 2027.
Do I choose 2026 or 2027 when paying in January?
Use the tax year the payment belongs to: 2026 for this fourth estimated payment. Verify the payment type and year against the IRS instructions before submitting.
Can I skip the January payment if I file my return early?
There is a conditional early-filing exception. Check its current requirements with the IRS or your tax professional before relying on it. Planning to file early, by itself, does not establish that you meet the conditions.