Part-Time Salary Calculator UK 2026

To calculate your part-time salary, first determine the hourly rate by dividing the full-time annual salary by total annual working hours (typically 1,950 hours for a 37.5-hour week). Then multiply this hourly rate by your part-time hours per week and by 52 weeks to get your annual pro rata salary.

For example, if the full-time salary is £30,000 and you work 20 hours per week instead of 37.5 hours, your pro rata salary would be £16,000 (£30,000 × 20 ÷ 37.5).

Pro rata salary means your pay is calculated in proportion to the hours you work compared to a full-time employee. If a full-time role pays £40,000 for 37.5 hours per week and you work 20 hours per week, your pro rata salary would be £21,333 (53.3% of the full-time salary).

This proportional calculation also applies to benefits like holiday entitlement, sick pay, and other employment benefits, ensuring fair treatment for part-time workers.

There is no legal definition of part-time hours in the UK. Part-time simply means working fewer hours than a comparable full-time employee. Typically, full-time is 35-40 hours per week, so part-time is anything below that threshold, commonly ranging from 16 to 30 hours per week.

Each employer defines what constitutes full-time and part-time work within their organisation, as long as they remain consistent and fair in their policies.

Part-time workers are subject to the same tax rates as full-time workers. However, because you earn less annually, you may fall into a lower tax bracket or use more of your personal allowance (£12,570 for 2026/27), resulting in a lower percentage of your income going to tax.

For example, if you earn £15,000 annually, you only pay tax on £2,430 (£15,000 minus £12,570), whereas someone earning £30,000 pays tax on £17,430. Use our take-home tax calculator to see your exact tax liability.

Yes, part-time workers in the UK have the same legal rights as full-time employees, including the same hourly pay rate and access to benefits like holiday pay, sick pay, and pension schemes, all calculated on a pro rata basis in proportion to hours worked.

Under UK employment law, it is illegal to treat part-time workers less favourably than full-time colleagues in equivalent roles. This protection ensures equal treatment in pay, benefits, training opportunities, and career progression.

From April 2026, the National Living Wage for workers aged 21 and over is £12.71 per hour. For 18-20 year olds, it is £10.85 per hour, and for 16-17 year olds and apprentices, it is £8.00 per hour.

These rates apply equally to part-time workers, ensuring fair compensation regardless of working hours. Your employer must pay at least these rates, and our calculator automatically checks compliance.

You are automatically enrolled in a workplace pension only if you earn over £10,000 annually in a single job. For the State Pension, you need National Insurance contributions above the threshold to build qualifying years. Many part-time workers earning below these limits may miss out on valuable pension benefits.

If you earn close to the £10,000 threshold, consider asking your employer about voluntary enrolment to benefit from employer contributions and tax relief. Even small contributions can make a significant difference over time.

Yes, your take-home pay is your gross salary minus Income Tax, National Insurance contributions, pension contributions, and any other deductions. Use this calculator to see your exact net income based on your part-time hours and annual salary.

The calculator accounts for all UK tax rules for 2026/27, including personal allowances, National Insurance thresholds, student loan repayments, and pension contributions, giving you an accurate picture of your actual earnings.