Please use this form to make additional payments to STA.
If you would prefer to mail your check, please mail it to STA, PO Box 4847, Walnut Creek, CA 94598.
NOTE: (1.) Input the dollar amount of your payment in the quantity box – you don’t need to use the plus/minus button, just enter a quantity in the box. (2.) Click the Add to Cart button. (3.) Continue shopping or proceed to checkout.