NH-1120: Corporation Business Tax Return (2025)
New Hampshire · New Hampshire DRA · Used for tax years 2025
Form NH-1120 is New Hampshire’s 2025 Corporate Business Profits Tax Return. It reports federal taxable income or loss, state adjustments, New Hampshire taxable business profits, and the business profits tax after credits.
What you'll need
The return must include complete, legible copies of the appropriate federal forms and schedules.
Depending on the entries you make, also prepare:
- Form DP-120: Attach if you file federal Form 1120S.
- Schedule IV: Complete and attach for adjustments on Lines 2(c) and 2(e).
- Supporting schedules: Attach for separate entity income or expense on Line 4, taxes by state on Line 6(b), and the research contribution computation on Line 6(g).
- Basis adjustment schedules: Attach a schedule for an election on Line 6(h), and transaction details if reporting multiple transactions.
- Form DP-80: Complete the BPT Apportionment Schedule if New Hampshire apportionment is not 100%.
- Form DP-132: Attach for the New Hampshire net operating loss deduction.
- Credit documentation: Attach the BET Credit Worksheet for a BET-only credit, or Form DP-160 for other credits, including BET.
Common mistakes
- Not rounding amounts: The form says to round to the nearest whole dollar.
- Entering negative amounts where zero is required: Enter zero if Line 9 or Line 11 is negative. Line 14 cannot be less than zero.
- Omitting federal attachments: The return must include complete, legible copies of the appropriate federal forms and schedules.
- Using both credit lines: Line 13 presents the BET-only credit on Line 13(a) as an alternative to other credits, including BET, on Line 13(b).
- Missing the summary entry: Report the tax from Line 14 on BT-Summary, Line 1(b).
Questions people ask
What amount goes on Line 1?
If you file federal Form 1120, use the amount from Line 28. If you file federal Form 1120S, use DP-120, Line 2, and attach DP-120.
What tax rate does the 2025 form use?
Line 12 calculates tax by multiplying New Hampshire taxable business profits on Line 11 by 7.5%.
What if my New Hampshire apportionment is not 100%?
Complete Form DP-80, BPT Apportionment Schedule. Enter the percentage from DP-80, Line 1(c), on NH-1120, Line 8.
Where do I claim a New Hampshire net operating loss deduction?
Use Line 10 and attach Form DP-132. The form also asks for the deduction available on Line 10-A and the amount to carry forward on Line 10-B.