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Budget calculator

UK tax, personal finance, and budget calculators built for clear decisions: take-home pay, side-hustle tax, IR35 comparisons, marriage allowance, and wedding budgets.

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UK Salary Sacrifice Calculator 2026/27

Estimate the take-home impact of pension salary sacrifice, including Income Tax and employee NI savings.

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How to choose the right calculator

Start with the goal

Pick the tool that matches the number you need today, then use related calculators for deeper planning.

Check the update date

Financial and tax calculators can change when thresholds or provider prices change.

Use estimates wisely

Calculators are designed for fast planning. For high-stakes decisions, confirm the result against official guidance.