# Pro Rata Salary Calculator UK | UK Money Calcs

Source: https://calcs.andreiturcea.com/pro-rata-salary.html
Last updated: 2026-10-15 · Last checked against GOV.UK: 2026-10-15


**Short answer:** Pro rata salary = full-time salary × your hours ÷ full-time hours. A £30,000 full-time salary at 22.5 of 37.5 hours a week is £18,000 a year.

Last updated: 15 October 2026 · Last checked against GOV.UK: 15 October 2026 · [Markdown version](https://calcs.andreiturcea.com/pro-rata-salary.html.md)

**General information, not tax or financial advice.** Check GOV.UK or speak to a qualified adviser about your own situation.

**Keeping your own records?** The UK Sole Trader Kit is a £9 spreadsheet for Google Sheets and Excel: an income log, expenses mapped to SA103 boxes, a live 2026/27 tax and Class 4 NI estimate, and an invoice template. [See what is inside](https://kit.andreiturcea.com/) · [Get the kit (£9)](https://turceapaul.gumroad.com/l/bmykeg)

##

Holiday entitlement is pro-rated in the same way: 5.6 weeks × your days per week.

**Want this in a spreadsheet?** If you would rather not build your own tracker, the UK Sole Trader Kit (£9, Google Sheets and Excel) logs income, maps expenses to SA103 boxes, estimates your 2026/27 Income Tax and Class 4 NI, reminds you about payments on account and includes an invoice template. It is a template, not advice, and the free guides here stay free. [See what is inside](https://kit.andreiturcea.com/) · [Get the kit (£9)](https://turceapaul.gumroad.com/l/bmykeg)

## What is the formula, in plain text?

Pro rata salary = full-time salary × (your hours per week ÷ full-time hours per week). The same works with days: full-time salary × (your days ÷ full-time days). Statutory holiday = 5.6 weeks × your working days per week.

## What rates and thresholds apply?

| Item | Value |
|---|---|
| Statutory holiday entitlement | 5.6 weeks a year (capped at 28 days) |

## What are some worked examples?

| Full-time salary | Full-time week | Your week | Pro rata salary |
|---|---|---|---|
| £30,000 | 37.5 hours | 22.5 hours | £18,000 |
| £25,000 | 5 days | 3 days | £15,000 |
| £42,000 | 40 hours | 30 hours | £31,500 |
| £36,000 | 37.5 hours | 15 hours | £14,400 |

Holiday example: 3 days a week × 5.6 = 16.8 days. The 5.6-week figure is long-standing statutory entitlement but was not part of tonight's GOV.UK rate check; confirm on GOV.UK.

GOV.UK sources (checked 15 October 2026): [https://www.gov.uk/holiday-entitlement-rights](https://www.gov.uk/holiday-entitlement-rights)

Machine-readable rates: [api/rates-2026-27.json](https://calcs.andreiturcea.com/api/rates-2026-27.json).

---
Disclaimer: estimates for information only, not financial, tax or legal advice.