Reverse Salary Calculator

Enter your desired annual take-home amount (after all deductions), select your tax year, KiwiSaver rate and student loan status. The calculator uses binary search on the NZ take-home pay engine to find the exact gross salary required — usually converging within 30 iterations to within $1 accuracy.

NZ has progressive tax brackets from 10.5% to 39%, plus the 1.67% ACC earner's levy, your KiwiSaver contribution, and potentially student loan repayments at 12% above $24,128. Together these can take 20-35%+ of your gross pay. To take home $60,000 after all deductions, you may need a gross salary of $77,000-$85,000 depending on your KiwiSaver rate and student loan status.

Your KiwiSaver employee contribution (3%, 4%, 6%, 8%, or 10%) is deducted from your gross pay. A higher KiwiSaver rate means you need a higher gross salary to achieve the same target take-home pay. For example, going from 3% to 6% KiwiSaver adds roughly 3% more to the required gross.

If you have a student loan, 12% of every dollar earned above the repayment threshold ($24,128/year for 2025-26) is deducted from your take-home pay. This significantly increases the gross salary you need, especially for higher incomes.

Very accurate — the binary search algorithm converges to within $1 of your target take-home pay. The underlying calculations use official IRD PAYE bracket rates, ACC earner's levy rates, and student loan repayment rules. Results are rounded to the nearest dollar.

The calculator uses binary search on the full NZ take-home pay engine. It starts with a search range of $0 to $1,000,000 and repeatedly tests the midpoint — if the take-home at the midpoint is below your target, it searches higher; if above, it searches lower. Each iteration halves the search space, so it converges in roughly log2(1,000,000) ≈ 20–30 steps. The final result is verified by running the forward take-home calculation on the found gross salary.