Our updated Customer Portal is now available! Visit nhtma.authoritypay.com where you can create an account or use guest checkout, pay your current bill, sign up for test reminders, schedule recurring payments, enroll in quarterly autopay and more. (New fees may apply). Customers also have the option to pay by phone by dialing 1-844-785-1082 (Fees apply). We are pleased to now offer Google Pay and Apple Pay.