Fishers residents and Hamilton County businesses have until Feb. 1, 2027, to file certain federal tax returns and make qualifying tax payments under disaster relief announced by the Internal Revenue Service.

Hamilton County is among 21 Indiana counties covered by the relief following severe storms, straight-line winds, tornadoes and flooding that began Aug. 11. The IRS announced the postponement Sept. 2 following a federal disaster declaration.

The relief generally covers eligible filing and payment deadlines falling on or after Aug. 11, 2026, and before Feb. 1, 2027. Individuals who live in Hamilton County and businesses whose principal location is in the county qualify under the geographic eligibility rules.

For residents who received a valid extension to file their 2025 federal income tax return, the filing deadline moves to Feb. 1. However, the relief does not extend the deadline for paying taxes owed on those returns. Those payments were due April 15, 2026.

Estimated income tax payments due during the postponement period also qualify. Affected taxpayers can avoid penalties for missing those installment deadlines by paying by Feb. 1.

For local employers, the extension includes quarterly payroll and certain excise tax returns normally due Nov. 2, 2026. The relief does not broadly postpone payroll tax deposits or all information returns, so businesses should check which obligations qualify.

The IRS automatically applies filing and payment relief to taxpayers it identifies within the covered disaster area. If an eligible taxpayer receives a late-filing or late-payment penalty notice for a covered deadline, the agency advises calling the telephone number on the notice to request removal of the penalty.

Taxpayers outside the designated counties may also qualify if records needed to meet a deadline are within the disaster area. They can call IRS Special Services at 866-562-5227 to request relief.

Affected taxpayers may also be able to claim eligible, unreimbursed disaster losses on their federal return for either the disaster year or the preceding year.

Details and exceptions are available in the IRS disaster relief announcement.