CT-663: Commercial Security Credit (2025)
New York · NY DTF · Used for tax years 2025
Form CT-663 is used by corporations to claim New York’s Commercial Security Credit. It reports certificate information, credit earned or received from a partnership, and any credit recapture. For corporations other than New York S corporations, it also calculates the credit used,
Who files this form
Form CT-663 is for corporations claiming the commercial security credit, either because they earned the credit or because they received a share of it from a partnership.
All filers must complete line A to identify whether they earned the credit themselves.
What you'll need
Have the following ready:
- Each commercial security credit certificate issued by the Division of Criminal Justice Services (DCJS). You must submit a copy with your return.
- The certified entity’s name, EIN, allocation year, certificate number, and credit amount.
- Your corporation’s legal name, EIN, and tax period beginning and ending dates.
- Any commercial security credit amount received from a partnership. If that partnership is not the entity listed on the certificate, provide the partnership’s name and EIN.
- For Schedule B, your tax due before credits, credits claimed before this credit, and minimum tax. New York S corporations do not complete Schedule B.
How to file
File Form CT-663 with Form CT-3, CT-3-A, CT-3-S, CT-183, CT-184, CT-186, CT-186-E, or CT-186-P.
Complete the certificate information section and file a separate Form CT-663 for each DCJS certificate. Submit a copy of each certificate with your return.
The supplied form does not state a mailing address or an e-filing procedure.
Common mistakes
- Leaving the tax period blank. All filers must enter beginning and ending dates.
- Skipping line A. All filers must answer it.
- Failing to complete the certificate information section or file a separate Form CT-663 for each certificate.
- Forgetting to submit a copy of the certificate with the return.
- Omitting the partnership’s name and EIN when you marked No on line A and received the credit from a partnership other than the entity listed on the certificate.
- Completing Schedule B for a New York S corporation. The form says these corporations must not complete that schedule.
Questions people ask
What if I have more than one certificate?
File a separate Form CT-663 for each DCJS certificate. Line 2 collects the line 1 totals from additional Forms CT-663, and line 4 collects their line 3 totals.
Do New York S corporations complete Schedule B?
No. The form specifically says New York S corporations do not complete Schedule B.
How much credit can I use for this tax year?
Schedule B, line 12, uses the smaller of your total available credit on line 6 or your credit limitation on line 11. Enter that amount on your franchise tax return as well.
What happens to unused credit?
Line 13 calculates unused credit available as a refund or an overpayment. Enter the amount to be refunded on line 14, limited to line 13. Line 15 applies the remainder as an overpayment to the next year’s tax. Enter the line 14 and line 15 amounts on your franchise tax return.