Click on this link to pay by credit card or electronic bank check.
https://secure.colorado.gov/pa
A portal administration fee for credit card payments or electronic check payments will be charged and retained by Colorado.gov.
Electronic Check: $1.00
Credit Card: the amount of the (payment + $.75 x 2.25%) - (example for a payment of $40.00): ($40 + $.75) x 2.25% = $41.67