1040 New Hampshire electronic filing information

State contact information

If you have specific questions about what you can e-file or about rejections you received, contact the state for more information.
Department of Revenue Administration
e-File Coordinator
P O Box 637
109 Pleasant St
Concord, NH 03302-0637
Phone
: 603-230-5000
Tax Refund Inquiries
: 603-230-5920

State electronic filing details

E-filing information
Details
Grace period
10 days
E-filing mandate
No
Accepts state-only filings
Yes
Return types accepted
DP-10 (Original or Amended) - through tax year 2024
BT-Summary - Non-LLC (Original or Amended)
BT-Summary - LLC (Original only)
Return types not accepted
Amended BT-Summary LLC
Estimate Payments
Extension
Accepts returns with these conditions
Refund
Zero balance
Balance due
Direct deposit of refunds
No
Accepted forms of payment
Electronic Funds Withdrawal (EFW)
Signature requirements
Perjury statement considered signature
Drivers license requirements
Optional
Supports PDF attachments
Yes
Tax year(s) supported for e-filing
Current tax year and two prior tax years
Special considerations
Form DP-10 and Form BT Summary may be filed electronically, with or without Form DP-2210. For more information, see Modernized e-File Handbook for Tax Practitioners, EROs, Transmitters, and Software Developers.
DP-10 is being discontinued for all New Hampshire entities, effective for tax year 2025.
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