MARYLAND TAX WITHHELD. Enter the total Maryland and local tax withheld as shown on the wage and tax statements (Forms W-2, W-2G or 1099) you have received. Add the amounts identified as Maryland and local tax withheld on each form and write the total on this line. Attach Forms W-2, W-2G and 1099 to your return if Maryland tax is withheld. You will not get credit for your withholding if you do not attach Forms 1099, W2 or W2G, substantiating Maryland withholding.
ESTIMATED TAX PAYMENTS. Enter the total of:
a. Maryland estimated tax payments;
b. Amount of overpayment applied from last year's return; AND
c. Payment made with a request for an automatic extension of time to file your current return. (See the instructions on Form 502E.)
NOTE: Estimated tax payments are required if you expect to receive any income (like pensions, business income, capital gains, lottery, etc.) from which no tax or not enough Maryland tax will be withheld. Read the instructions on the back of Form 502D, Maryland Personal Declaration of Estimated Income Tax.