How to read this: Within the tax-free cap, the gap between the two lines is tax saved thanks to BIK; rent still reduces net cash yuan for yuan—there is no discount on rent itself. Above the cap (grey dashed line), net cash falls faster because excess rent is also taxed. Assumptions: Tax-resident status; cumulative annual progressive withholding (2019 rate table, standard deduction 5,000/month); salary and rent constant all year. Non-residents (<183 days in China per year) use a different monthly table—this calculator does not apply. For illustration only, not formal tax advice.
Snapshot: three rent scenarios
Annual after-tax net cash. Within the cap, each extra ¥1 of rent reduces this by ¥1—no tax discount, purely a cash-spending choice.