Since I did not pay for more than one year, I don't really know, but...
The form on Pay.gov is titled USCG Document Renewal (or something like that) and has a comment line. I had imagined that payment there for multiple years and an appropriate statement on the comment line of the form would
work.
What I can see on-line for my transaction now is this on the opening page:
Payment Activity:
USCG Vessel Documentation Payment Form
Homeland
Security: US Coast Guard Finance Center
Pay.gov
Tracking ID: 26LVNRO2
Transaction Date: 12/05/2019 08:50:48 PM EST
Transaction Amount: $26.00
Payment Type: Debit or credit card
Transaction Status: Success
Payment Date: 12/05/2019
Frequency: One Time
and the on-line receipt shows....
Receipt
Tracking Information
Pay.gov Tracking ID: 26LVNRO2
Agency Tracking ID: 75900167543
Form Name: USCG Vessel Documentation Payment Form
Application Name: Vessel Doc Form
Payment Information
Payment Type: Debit or credit card
Payment Amount: $26.00
Transaction Date: 12/05/2019 08:50:48 PM EST
Payment Date: 12/05/2019
Name: William S Murdoch
Delivery and Contact: Method: USPS,
Phone: (423) 239-9108, Fax: null,
Email:
wsmurdoch@aol.com
Billing Address: 3424 Lakeshore Dr, null, Kingsport, TN, 37663,
USA
Shipping Address: null, null, null, , null,
USA
Service Requested: Renewal
Vessel Number: 937589
Vessel Type: Recreational
Comments:
Account Information
Cardholder Name: William Murdoch
Card Type: Visa
Card Number: ****************
Good luck, I've been reading you for years.
Bill