Pro Rata Sick Pay Calculator
Calculate pro rata sick pay entitlement
About This Tool
The Sick Pay Calculator helps UK employees calculate their Statutory Sick Pay (SSP) entitlement. SSP is paid by your employer when you're too ill to work, starting from the 4th day of illness.
This calculator shows you how much SSP you're entitled to and for how long, helping you plan your finances during periods of illness.
How It Works
How to Use This Calculator
- Enter your average weekly earnings - Your gross weekly pay before tax.
- Enter the first day of sickness - When your illness started.
- Enter expected return date - When you expect to return to work (or leave blank for ongoing).
- Select your working days - Which days of the week you normally work.
- Click Calculate - See your SSP entitlement breakdown.
Formula
SSP Calculation
Statutory Sick Pay (2024/25):
- Rate: £116.75 per week
- Waiting days: First 3 qualifying days are unpaid
- Maximum duration: 28 weeks
- Minimum earnings: £123/week to qualify
SSP is paid for qualifying days (days you would normally work) after the 3-day waiting period.
Examples
Examples
Example 1: One Week Off
- Working pattern: Mon-Fri (5 days)
- Days off sick: 5 days
- Waiting days: 3 (unpaid)
- SSP days: 2 days
- SSP = £116.75 / 5 x 2 = £46.70
Example 2: Two Weeks Off
- Working pattern: Mon-Fri (5 days)
- Days off sick: 10 days
- Waiting days: 3 (unpaid)
- SSP days: 7 days
- SSP = £116.75 / 5 x 7 = £163.45
Example 3: Part-Time Worker
- Working pattern: Mon, Wed, Fri (3 days)
- Days off sick: 6 qualifying days (2 weeks)
- Waiting days: 3 (unpaid)
- SSP days: 3 days
- SSP = £116.75 / 3 x 3 = £116.75
Frequently Asked Questions
How is statutory sick pay calculated for part-time workers?
SSP is a flat daily rate regardless of hours worked. In the UK, SSP is £109.40/week (2023/24) paid for qualifying days. Part-time workers receive SSP for their normal working days only, not the full 5-day week.
What are qualifying days for SSP?
Qualifying days are the days you normally work. If you work Monday to Wednesday, those are your 3 qualifying days. SSP daily rate = weekly rate / number of qualifying days. £109.40 / 3 = £36.47 per qualifying day.
How long can I receive statutory sick pay?
SSP is payable for up to 28 weeks. It starts after 3 waiting days (consecutive days of sickness including non-working days). If you are still sick after 28 weeks, you may be eligible for Employment and Support Allowance.
Does my employer have to pay more than SSP?
Employers are only legally required to pay SSP. Many offer enhanced sick pay (contractual sick pay) that exceeds SSP, often at full pay for a set period. Check your employment contract for your specific entitlement.
How does sick pay work during a notice period?
If you fall sick during your notice period, you are still entitled to SSP or contractual sick pay. Your notice period continues to run while you are off sick. Your employment ends on the original notice end date.
Disclaimer
Disclaimer: This calculator provides estimates based on the information you enter and is intended for general guidance only. It does not constitute professional employment or financial advice. For specific queries about your sick pay entitlement, please consult your employer, HR department, or contact ACAS for free, impartial advice. SSP rates and eligibility criteria may change; always verify current rates with official sources such as GOV.UK.
💡 Tips
Tips
- Fit notes - You need a fit note from your GP after 7 days of illness
- Company sick pay - Many employers offer enhanced sick pay above SSP
- Linked periods - Illnesses within 8 weeks may be linked (no new waiting period)
- Self-certification - You can self-certify for the first 7 days
- Part-time workers - SSP is calculated based on your qualifying days