I have a new client and little information apart from the 2023 return. I am filing an extension and trying to figure out how to check box CT-3-M (MTA surcharge) on the CT-5 form. Box CT-3 is checked.

I have tried entering data in Form NYC-222 / CT-222 (CT-3-M) and also the the CT-3-M fields in the Computation of Capital Base screen but the box is not checked.  

Any suggestions would be appreciated.