UK Money

Official-standard UK calculators for VAT, child maintenance, statutory holiday pay, NHS take-home pay, and the state pension.

The calculators in this category are listed below. Each link opens the full calculator on CalcFree.

Calculators in this category

VAT Calculator (UK)

Add or remove UK VAT from any price at 20% standard rate, 5% reduced rate, or custom rates with instant net and gross breakdowns.

How it is calculated: Add VAT: Gross = Net × (1 + Rate); Remove VAT: Net = Gross ÷ (1 + Rate); VAT Amount = Gross − Net

Child Maintenance Calculator

Estimate statutory payments under CMS guidelines using paying parent income, number of children, and overnight shared care nights.

How it is calculated: Basic Band: 1 child = 12%, 2 children = 16%, 3+ children = 19% of gross weekly income; Deductions: 1/7th per 52 nights shared care

CMS Calculator (Child Maintenance Service)

Assess your 2012 CMS statutory maintenance liability after accounting for pension contributions, gross income, and shared care bands.

How it is calculated: Assessable Income = Gross Taxable Pay − Pension; Band calculation applied then adjusted for overnight shared care.

Holiday Pay Calculator (UK)

Work out statutory holiday entitlement and accrued pay for full-time, part-time, and irregular-hours staff using official UK rules.

How it is calculated: Full-time: 5.6 × Days worked per week (capped at 28 days); Irregular hours: 12.07% × Total hours worked

NHS Take-Home Pay Calculator

Estimate your actual take-home pay on the NHS Agenda for Change pay scale after pension tier contributions, tax, and National Insurance.

How it is calculated: Net Pay = Gross Pay − NHS Pension (5.2%–12.5%) − Income Tax (20%/40%) − Employee NI (8%)

UK State Pension Calculator

Project your weekly and annual payout under the new UK State Pension based on your National Insurance qualifying years.

How it is calculated: Weekly Pension = (Qualifying NI Years ÷ 35) × Full State Pension (£221.20/week; minimum 10 years required)