Rates & sources
UK tax rates and thresholds, as published by HMRC. Scotland and Wales have devolved rates for income tax and property transactions.
Source: HMRC — Tax rates — figures refreshed at the start of each tax year.
When to use this calculator
- Before accepting a pay change, bonus, pension contribution, or salary-sacrifice option.
- When you want to compare employed, self-employed, or dividend-based income scenarios.
- When you need a simple take-home estimate before running payroll or filing returns.
- When you are approaching the £100,000 income level and want to understand the personal allowance taper effect.
- When you are planning a salary sacrifice arrangement and need to see the net pay impact before agreeing terms.
A realistic South Africa planning example
Use these sample inputs as a quick scenario test, then change one variable at a time to compare outcomes.
Annual Gross Salary (R)
R400,000
Pay Frequency
Monthly (12/yr)
Age Group
Under 65
Pension/RA Contribution (%)
R250 per month
After entering these figures, review take-home per pay period, gross per period and annual take-home together rather than in isolation — each metric tells a different part of the story. Then rerun the tool with one input adjusted to see which variable has the biggest effect on all three outputs before you settle on a plan.
How to read your results
Take-Home per Pay Period
Use this metric to compare scenarios side by side and understand how changes in the key inputs drive the final outcome. If the figure surprises you, isolate one variable at a time and rerun the calculation to identify which assumption is responsible.
Gross per Period
Use this metric to compare scenarios side by side and understand how changes in the key inputs drive the final outcome. If the figure surprises you, isolate one variable at a time and rerun the calculation to identify which assumption is responsible.
Annual Take-Home
Use this metric to compare scenarios side by side and understand how changes in the key inputs drive the final outcome. If the figure surprises you, isolate one variable at a time and rerun the calculation to identify which assumption is responsible.
Annual Income Tax
Review this figure alongside your gross income so you can understand the true cost of deductions and plan around any thresholds before the tax year closes. If the figure looks higher than expected, check whether any pension or gift-aid contributions could reduce your taxable income.
Annual UIF
Use this metric to compare scenarios side by side and understand how changes in the key inputs drive the final outcome. If the figure surprises you, isolate one variable at a time and rerun the calculation to identify which assumption is responsible.
Method & assumptionsAuthoritative sources
This calculator computes your South African take-home pay using the official 2024/25 SARS income tax brackets and rates. It begins by applying your pension or retirement annuity contribution percentage to your gross salary to arrive at a taxable income figure — the pension deduction is capped at 27.5% of gross or R350,000, whichever is lower. The applicable SARS tax brackets are then used to compute gross income tax, from which your age-based rebates and Medical Tax Credit are subtracted. UIF at 1% of remuneration (capped at R212,544 per annum) is added as a separate statutory deduction. The resulting annual net figure is divided by your selected pay frequency to show your per-period take-home amount.
Keep in mind that this calculator does not account for employer-side contributions such as medical aid subsidies, the Skills Development Levy (SDL at 1% of payroll), or risk benefit premiums, which are typically not reflected in your personal net pay. Additionally, bonus payments and thirteenth cheques are taxed separately by most payroll systems and are not included here. The figures produced are best used as a guide when evaluating job offers, planning a salary negotiation, or checking that your payslip falls within the expected range for your income level. For legally binding payroll figures, consult your HR or payroll department and cross-reference with your SARS eFiling profile.
Common mistakes
- !Entering gross income when you really want take-home pay, or vice versa.
- !Ignoring pension contributions, deductions, or local tax rules that change the result.
- !Comparing monthly and annual figures without standardising them first.
- !Overlooking the National Insurance threshold changes that apply mid-year when rates or bands are adjusted in a Budget.
- !Assuming a salary sacrifice benefit reduces take-home pay by the full gross amount, rather than only the after-tax cost.
What to do next
- Check the same scenario with related pay or deduction calculators to see the full picture.
- Keep a copy of the assumptions you used so you can compare next tax year or pay period accurately.
- Read the related guides below if you are choosing between multiple income or deduction options.
- If you are self-employed, run the self-employment tax calculator alongside this result to compare the net position against employed income.
- Check whether increasing your pension contribution by even one or two percent changes the take-home significantly — use the pension calculator next.
Frequently asked
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End-of-article next steps
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