Besides the new 502LU for MD Unemployment subtraction the Comptroller's Office just announced a new Form 511 for certain pass-thru entities claiming the new resident pass-thru entity tax.  They are requesting (too late) to hold off on filing tax returns until this is created (hmm due date is two weeks).

I understand all this COVID stuff but changing / adding tax forms and tax laws DURING tax season is just plain unfair to us practitioners.