Va. Code Ann. § 58.1-2230
B. Returns and payments shall be (i) postmarked on or before the fifteenth day of the second month succeeding the month for which the return and payment are due or (ii) received by the Department by the twentieth day of the second month succeeding the month for which the return and payment are due. However, a monthly return of the tax for the month of May shall be (i) postmarked by June 25 or (ii) received by the Commissioner by the last business day the Department is open for business in June.
If a tax return and payment due date falls on a Saturday, Sunday, or a state or banking holiday, the return shall be postmarked on or before the fifteenth day of the second month succeeding the month for which the return and payment are due or received by the Department by midnight of the next business day the Department is open for business. This provision shall not apply to a return of the tax for the month of May.
A return and payment shall be deemed postmarked if it carries the official cancellation mark of the United States Postal Service or other postal or delivery services.
C. The following shall file a monthly return as required by this section:
2000, cc. 729, 758; 2002, c. 7; 2003, c. 781.