From Gross to Net: How Salary Deductions and Income Tax Work

Published 2026-10-01 · 5 min read

The number in your contract and the number in your bank account never match — social insurance and income tax live in between. Understand the pipeline and every line on your payslip makes sense.

Three Steps From Gross to Net

  • Deduct social insurance + housing fund: employee share is roughly 8% pension, 2% medical, 0.5% unemployment, 5-12% housing fund (varies by city).
  • Compute taxable income: gross − 5,000 standard deduction − social insurance − special additional deductions (children's education, mortgage interest, elderly care — 1,000-2,000/month each).
  • Apply the bracket table: multiply by the rate and subtract the quick deduction.

Monthly Withholding Brackets (Top Three)

Taxable income (monthly)RateQuick deduction
up to 3,0003%0
3,000-12,00010%210
12,000-25,00020%1,410

Example: gross 12,000; insurance ≈ 2,400; special deductions 1,500. Taxable = 12,000 − 5,000 − 2,400 − 1,500 = 3,100 → 10% bracket → tax = 3,100 × 10% − 210 = 100. Net ≈ 9,500.

Amounts in Words: The Invoice Hard Rule

  • Digits map to formal characters (yi, er, san…), plus shi, bai, qian, wan, yi for places.
  • If no cents follow the jiao digit, append 'zheng' (exact): ¥1680.00 becomes 'one-thousand six-hundred eighty yuan exact'.
  • Zeros must be written where they occur; consecutive zeros collapse into one — the wording exists to prevent tampering.

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FAQ

How should the annual bonus be taxed?

Current policy lets you choose: tax the bonus separately (monthly table) or merge it into annual income. High bonus + low salary usually favors separate; compute both and pick.

Why does net pay drop later in the year?

Cumulative withholding: early months sit in lower brackets, and as cumulative income grows the effective bracket rises — same annual tax, uneven monthly take-home.

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