Ark. Code Ann. § 26-18-503: Remittance of taxes

(a) When a return of tax is required to be filed, the person required to make the return shall, without assessment or notice and demand from the Secretary of the Department of Finance and Administration, pay the tax to the secretary at the time and place fixed for filing the return, determined without regard to any extension of time for filing the return.

(b) All remittances required to be paid under any state tax law shall be made payable to the Department of Finance and Administration by bank draft, check, cashier's check, money order, or money. The secretary shall issue a receipt, if requested, to the taxpayer for every cash payment. No remittance, other than cash, is a final discharge of liability due the secretary until it has been paid in cash.