Rooftop Solar in 2026 Comes With a THB 200,000 Tax Break, but the Numbers That Should Decide It Are 3.95 and 2.20
Royal Decree No. 805 (2026) grants a personal income tax exemption of up to THB 200,000 for rooftop solar installed between 3 March 2026 and 31 December 2028, while the Citizen Solar programme opened on 1 July 2026 buying back at THB 2.20 per unit against a 500 MW quota. This guide explains why self-consumption is worth nearly twice an exported unit, and how to size the system accordingly.
