Grab drivers in Singapore face higher tax bills due to system error

Approximately 16,000 Grab private-hire drivers in Singapore will receive higher tax bills following a system error that resulted in incomplete income records being submitted to the Inland Revenue Authority of Singapore (IRAS).

The error affected roughly 28,000 drivers who participated in the IRAS pre-filing income initiative for the Year of Assessment 2026. Grab reported that certain payments, including incentives, tips, and other miscellaneous earnings, were omitted from the data. Consequently, the reported income for these drivers was lower than their actual earnings.

IRAS stated that most affected drivers will face additional tax charges of less than S$100, though the exact amount depends on individual taxable income and reliefs. Grab has since worked with IRAS to submit corrected records and has implemented additional safeguards to prevent future errors.

Drivers do not need to take immediate action. IRAS is currently revising the affected Notices of Assessment (NOA). For those using GIRO installment plans, payments will be adjusted automatically. Drivers not using GIRO should pay the revised amount by the deadline specified in their new assessment.