Edit, sign, and share culsllc payoff authorization online. No need to install software, just go to DocHub, and sign up instantly and for free.First you need to know what the payoff figure is. Your account number is provided with the loan details in the welcome letter that you receive in the mail after your new loan is funded. Already have an account with us? How many Form 8300s should the car dealer file? Can I set up automatic payments (AutoPay) in MyLoans?