Where do I mail my VA form 763-S to as it can't be done online? Can't schedule later in the month to pay my MD taxes - will this affect anything - is filing federal okay?

You can e-file your federal return and MD even if you choose to make a payment later (choose pay by check).

Mail your Form 763-S to the address shown below.

•  Department of Taxation, P.O. Box 1498, Richmond, Virginia 23218-1498