If you’re going to owe taxes when you file your federal tax return, consider paying over the Internet through the Electronic Federal Tax Payment System (EFTPS). EFTPS-OnLine is fast, easy, convenient, and secure. The government does not charge for this service.You can enroll in EFTPS-OnLine via an official government site on the Internet, using a user-friendly Web interface. After enrollment, you will receive a confirmation kit by mail with instructions for obtaining an Internet password. For added security, a unique Personal Identification Number (PIN) will be mailed to you.