Maryland 2025 502 part year resident issue with gains/losses
I was a part year resident of Maryland. On the "Additional Info for Part-Year Residents" screen I entered the portion of both my income and my gains/losses (net gain) which did not apply while I was a Maryland resident. I understand that Maryland initially adds the entire amount of capital gain or loss to income, and then modifies the Maryland income amount through Additions of Subtractions based on part year residency.
The income amount was properly treated as a subtraction from Maryland income. But the gains were added to Maryland income rather than subtracting from Maryland income, thus effectively double counting that amount as income instead of excluding it.
This appears to be an error in the program logic. What is my recourse, having now paid for an inaccurate filing which must be amended?