To get more information or to enroll in EFTPS, visit the EFTPS website at www.eftps.gov or call 1-800-555-4477 (24 hours a day, 7 days a week).If you make your payment using EFTPS, do not include the payment voucher.
DDA stands for demand deposit account. It is a bank account in  which you can deposit and withdraw money. A form of a demand  deposit account is a checking account.
A DBA, short for doing business as, allows you to legally do business under a particular name at minimal cost. A DBA, short for doing business as, allows you to legally do business under a particular name at minimal cost.