www.eftps.gov This site will provide you with informaiton on the Electronic Federal Tax Payment System (EFTPS). As of December 31, 2010, the paper coupon deposits (8109) will no longer be used. All Federal Tax Payments must be made via the EFTPS system. This is where you will enroll in the EFTPS system. You must use the EFTPS system starting January 1, 2011. If you have any questions, please call our office and ask for Sonya.