TNTAP: Navigating in a Period Watch this video to learn how to navigate and perform various actions with a period, including how to amend a return and make a payment. October 18, 2018 20:04 Related articles How do I make an estimated payment in TNTAP? How do I renew my IRP account? Using One of Last Three Payments: Business Tax and TNTAP Can I change a return in TNTAP? Do I have to reapply in TNTAP?