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.
DBA stands for doing business as and is an official registration of your business name. In some states, this can be referred to as a fictitious business name or assumed name.BA registration is important when you want to conduct business or accept money under a name other than your own, and can be used to create an alternate name for another business that has already been filed. It is also important when creating a business bank account, as most banks generally require it.