HK Profits Tax R&D Super Deduction 300% 2026

HK offers 300% super deduction on first HK$2M qualifying R&D and 200% above. Calculate Profits Tax savings 2026 (source: ird.gov.hk).

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What Is R&D 300% deduction?

HK offers 300% super deduction on first HK$2M qualifying R&D and 200% above. Calculate Profits Tax savings 2026 (source: ird.gov.hk). This calculator gives an indicative result based on the headline rate. The actual outcome may vary depending on your specific circumstances, applicable deductions, and any concession schemes. Source: IRD Cap. 112.

How to Use This Calculator

Enter the primary amount and the applicable rate. The tool computes the proportional tax, benefit, or deduction and the residual amount. For complex multi-band situations, consult the source jurisdiction's official calculator. Last updated: May 2026.

Why This Number Matters

Hong Kong and Singapore both run lean tax systems but have specific schemes (like R&D 300% deduction) that materially affect take-home and effective tax rate. Missing these means leaving real money on the table — often the difference between an average and an optimized tax filing.

Source and Disclaimer

Figures sourced from IRD Cap. 112 as of May 2026. This is an educational calculator and not legal or tax advice — for advisory work, consult a registered tax practitioner. Last updated: May 2026.

Source: IRD Cap. 112