If you are mailing your Georgia income tax payment, you would just need to mail the Form INDV-525TV payment voucher along with your check.The payment voucher would be included in your printed tax return.
You can also access the voucher here https://dor.georgia.gov/sites/dor.georgia.gov/files/related_files/document/TSD/Form/TSD_Payment_Vouc...
Mail the payment voucher and payment to:
Georgia Department of Revenue
PO Box 740323
Atlanta, Georgia 30374-0323
As an alternative, you can also pay the taxes online at https://dor.georgia.gov/payment-options.