Pro-Rata Salary Calculator 2025-2026
Calculate your part-time salary based on the full-time equivalent (FTE) and see your take-home pay after tax, National Insurance, and other deductions.
Ready to Calculate
Enter the full-time salary and your part-time hours to see your pro-rata salary.
What is Pro-Rata Salary?
Pro-rata salary is a proportional calculation used to determine what a part-time employee should earn based on the full-time equivalent (FTE) salary for the same role. It's calculated by multiplying the full-time salary by the percentage of full-time hours you work.
How It's Calculated
- ✓ FTE % = (Your Hours ÷ Full-Time Hours) × 100
- ✓ Pro-Rata Salary = Full-Time Salary × FTE %
- ✓ Example: 20 hours ÷ 37.5 hours = 53.3% FTE
- ✓ £30,000 × 53.3% = £15,990 pro-rata
Common Use Cases
- ✓ Part-time job offers and negotiations
- ✓ Reduced hours after maternity/paternity leave
- ✓ Flexible working arrangements
- ✓ Job sharing positions
- ✓ Comparing full-time and part-time roles
Important Notes
Pro-rata calculations assume that all benefits and allowances are proportionally adjusted based on your working hours. In practice, some benefits (like certain allowances or bonuses) may not be pro-rated. Always check your employment contract for specific details.
Tax and National Insurance are calculated on your actual earnings, so working part-time often results in a higher take-home percentage compared to the equivalent full-time salary.