Do I have to pay Signboard Tax for vehicle graphic?

Answer: In according to Signboard Tax Act, B.E. 2510 and revision no. 2, B.E. 2534 – Section 6, Section 7 and Section 15, clearly states that signboard (including vehicle graphic) owner is liable to tax, shall report and pay the tax in every year. The tax will be calculated by quarterly since installation period until year end.
A person liable to tax shall report to local Department of Land Transport office (where his vehicle registered). In Bangkok, a person liable to tax shall report to Chatuchak District Office, Revenue section.