The following is copied from the Montgomery County Department of Housing and Community Affairs:
https://montgomerycountymd.gov/DHCA/housing/licensing/renew.html
If a rental property is currently licensed, a renewal notice and invoice will automatically be mailed on or by July 1, 2023. Renewal invoices will include instructions for online payments with credit cards** or eCheck; however online payments for the next year cannot be made until July 1st of the new registration year.
An AccessMCG account is required to make online payments. Mailed payments should be sent to PO Box 829463 PHILADELPHIA PA 19182-9463. Payments will not be processed until July 1st of the new registration year. All payments are due no later than July 31,2023. Effective July 1, 2023 there are new Rental License and Transfer Fees for FY24.
**All credit card payments are subject to a 2.3% service fee charged by card processor as of July 1, 2023.
https://montgomerycountymd.gov/dhca/housing/licensing/fees.html