| State Name | New Hampshire |
| Business Entity Type | Corporations |
| Extension Status | Approved Automatically |
| Return Due Date | April 15, 2025 |
| Extended Due Date | November 17, 2025 |
| Other Information | * New Hampshire grants you an automatic 6-month extension to file your business tax return. * The extension is NOT an extension to pay any taxes you may have due. Tax payments are due by the original return due date. |
| Online Payment | New Hampshire | Online Tax Extension Payment |
| Payment Voucher Form | Form BT-EXT | Payment Form and Application for 7-Month Extension of Time to File Business Tax Return |
| State Payment Agency | New Hampshire Department of Revenue Administration |
| Mailing Address with Payment | New Hampshire Department of Revenue Administration |
| Failure to File Penalties | N/A, because state does not tax general business corporation or pass-through income. |
| Failure to Pay Penalties | N/A, because state does not tax general business corporation or pass-through income. |
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