Thailand cuts e-withholding tax to 1% and extends digital tax incentives.

Thailand’s Cabinet approved a package of digital tax measures on 16 June 2026, reducing the electronic withholding tax rate to a flat 1% and extending double deduction incentives for businesses adopting electronic tax systems through to December 2027.

Announced alongside three other tax decisions from the same Cabinet, the changes take effect immediately and apply to all companies and registered partnerships operating in Thailand.

E-withholding tax rate reduced to 1%

The Cabinet approved a reduction in the electronic withholding tax rate to a uniform 1% for all transaction types processed through the e-withholding tax system. The measure runs until 31 December 2027.

The Revenue Department estimates the reduction will release approximately 27 billion baht in private-sector liquidity. For businesses that process large volumes of payments subject to withholding tax, including service fees, rental payments and professional fees, the lower rate directly reduces the cash flow impact of tax withheld at source.

Double deduction for e-tax system investment extended

The Cabinet also extended the double tax deduction available to businesses investing in electronic tax infrastructure. Companies and registered partnerships that incur expenses on e-tax invoice systems, e-receipt systems and the e-withholding tax platform are eligible to deduct 200% of those costs against taxable income.

Qualifying expenditures include software systems, computer hardware, electronic data storage systems and fees paid to approved e-tax service providers. The extension covers costs incurred through 31 December 2027, with eligible expenses also now including information system assessment costs paid to the Electronic Transactions Development Agency (ETDA).

Incentive window for businesses not yet on the e-tax platform

For businesses already using the e-withholding tax system, no action is required and the lower rate applies automatically. For those still processing withholding tax manually or through legacy systems, the December 2027 deadline represents a financially compelling migration window. The double deduction effectively halves the after-tax cost of qualifying system investments made before it closes.