Tax Revenue Appeals Board (TRAB) is a quasi-judicial institution. The jurisdiction of the Board is provided under Section 7 of the Tax Revenue Appeals Act, Cap 408. It's core functions are as follows:-

1.  To hear and determine civil disputes arising from revenue laws administered by the Tanzania Revenue Authority. 
2. To  conduct public awareness on Tax Revenue Appeals Act, Cap. 408 and its Regulations, and other related tax laws; and to the stakeholders
3. To publish Tanzania Tax law Reports
4. To provide legal advice to litigants