E-Filing tax year 2025 returns that include Form 4136

The IRS will begin accepting e-filed tax year 2025 returns that include Form 4136, Credit for Federal Tax Paid on Fuels, on Feb. 15, 2026.

Only tax year 2025 returns that include Form 4136 are affected by this timing. If your return includes this form, it cannot be e-filed before Feb. 15, 2026. Taxpayers who include Form 4136 are encouraged to wait to e-file until that date, if possible, to avoid processing delays or rejection of their return.

Tax year 2025 returns that do not include Form 4136 are not impacted and may be e-filed according to the normal filing schedule.

Taxpayers and tax professionals should review their returns carefully to determine whether Form 4136 is included before attempting to e-file. Filing at the appropriate time helps ensure timely processing and reduces the need for follow-up actions.

The IRS will update this page if there are any changes to the Feb. 15, 2026, start date for accepting e-filed returns that include Form 4136.