Online Payments & Fees

Use the Online Payment System to pay your annual tank registration fees more efficiently.

The Online Payment System allows you to make a payment with a credit card through the state’s eGovernment service provider, Colorado.gov. The total amount of your transaction will reflect pricing through the Colorado.gov electronic payment processor.


Owners or operators of underground or aboveground storage tanks regulated by OPS must register their tanks within 30 days after first using it to store a regulated substance.

  • Tank registration needs to be renewed annually.
  • OPS sends tank registration and renewal invoices to the owner at the same time each year.
  • The registration and renewal fee is $35.00 per tank per year.
  • These fees go to the Petroleum Storage Tank Fund, which is used to assist tank owners with cleaning up petroleum releases.