Free UK calculators, connected to a planner

See the tax impact before you change pay, pension, or Child Benefit.

Start with one focused UK calculator, then carry the same draft into Seedli when the decision needs budget, tax, and net worth planning in one place.

No bank link neededDraft stays editableNo card required

Quick salary hook

Start with salary, not a blank calculator.

Enter one annual figure here, then refine cadence, bonus timing, pension, and Gift Aid inside the ANI tool without re-entering the basics.

Best first step for ANI pressure

Useful for the 60% trap, HICBC taper checks, and take-home uncertainty.

Everything stays editable

Salary only gets you started. Bonus, pension, Gift Aid, and payroll settings stay open.

This prefills the ANI calculator only. You can still change cadence, bonus timing, pension, and the other tax inputs inside the tool.

Popular tax starting points

Choose the UK money question you need answered first

Most people start with ANI, Child Benefit tax charge, salary sacrifice, or a quick budget read. Each tool answers one question quickly, then carries the same draft into the wider plan when you need more depth.

Broader planner

Need the wider tax read?

Use the broader planner when ANI is only one part of the answer and you also need PAYE, student loan, or balancing-payment context.

Explanation first

Need the guide before the calculator?

Use the explainers when the search is really about the rule itself rather than typing straight into a live tool.

Carry the draft forward

Need the full planning workspace?

Start with the focused calculator, then carry the same baseline into Seedli when the decision spills into budget, tax, or net worth.

Private by Default

Plan confidently without forced bank linking or data-selling gimmicks.

Actionable Optimisation

See where money leaks happen and exactly where to intervene first.

Household Clarity

Keep partner planning fair, visible, and easy to maintain each month.