Overtime Pay Calculator UK
Calculate your overtime pay in seconds with RootHR‘s free Overtime Pay Calculator UK.
How to Use the Overtime Pay Calculator uk
Using the calculator is straightforward.
- Enter your hourly pay rate.
- Add the number of regular hours worked.
- Enter the number of overtime hours worked.
- Choose your overtime pay rate (Normal, Time and a Half, or Double Time).
- Click Calculate Overtime Pay to view your results.
The calculator will instantly display:
- Regular Pay
- Overtime Pay
- Total Gross Pay
What Is Overtime Pay?
Overtime pay is the additional amount an employee receives for working extra hours beyond their normal contracted hours. While many employers offer enhanced overtime rates, there is no legal requirement in the UK for overtime to be paid at a higher rate unless it is stated in your employment contract.
Some employers pay:
- Normal hourly rate (1x)
- Time and a Half (1.5x)
- Double Time (2x)
The overtime rate you receive depends on your employer’s policy or your employment agreement.
How Overtime Pay Is Calculated
The calculation uses three simple formulas.
Regular Pay
Hourly Rate × Regular Hours WorkedOvertime Pay
Hourly Rate × Overtime Multiplier × Overtime HoursTotal Gross Pay
Regular Pay + Overtime PayFor example:
Hourly Rate: £20
Regular Hours: 40
Overtime Hours: 8
Overtime Rate: Time and a Half (1.5x)
Regular Pay
£20 × 40 = £800Overtime Pay
£20 × 1.5 × 8 = £240Total Gross Pay
£800 + £240 = £1,040UK Overtime Rules
There is no UK law requiring employers to pay overtime at an increased rate. Whether overtime is paid at the normal hourly rate or at an enhanced rate depends on the terms of your employment contract.
However, employers must ensure that your average hourly earnings do not fall below the National Minimum Wage or National Living Wage after taking all working hours into account.
If you’re unsure how overtime is paid in your workplace, check your employment contract or speak with your employer.
Benefits of Using Our Calculator
Our calculator helps you:
- Estimate your overtime earnings instantly
- Calculate gross pay before tax and National Insurance
- Compare different overtime rates
- Plan your monthly income
- Check whether your payslip appears accurate
- Estimate payroll costs for employees
There is no registration required, and the calculator works on desktop, tablet and mobile devices.
Who Can Use This Calculator?
This overtime calculator is suitable for:
- Full-time employees
- Part-time workers
- Agency workers
- Temporary staff
- Contractors paid by the hour
- Employers
- Payroll administrators
- HR professionals
- Small business owners
Frequently Asked Questions
Is overtime compulsory in the UK?
Not necessarily. Whether you are required to work overtime depends on your employment contract and the agreement between you and your employer.
Is overtime always paid at time and a half?
No.
Many employers pay time and a half, but some pay the normal hourly rate while others pay double time for specific shifts or bank holidays.
Does this calculator include tax?
No.
The calculator estimates gross earnings before Income Tax, National Insurance and any other deductions.
Can I calculate double-time pay?
Yes.
Simply choose Double Time (2x) from the overtime rate dropdown.
Does this calculator work for part-time employees?
Yes.
You can calculate overtime regardless of whether you work full-time or part-time.
Is overtime taxable?
Yes.
Overtime pay forms part of your taxable income and is generally subject to Income Tax and National Insurance contributions.
Can employers refuse to pay overtime?
This depends on your employment contract. If overtime arrangements are included within your contract, your employer should follow those agreed terms.
Is this calculator free?
Yes.
The calculator is completely free to use without registration or hidden charges.
Looking for a Complete HR Solution?
You’ve calculated your overtime pay. Now see how RootHR can simplify HR for your business. Our all-in-one HR software helps UK employers manage recruitment, onboarding, leave, attendance, employee records and compliance from one easy-to-use platform, saving time, reducing admin and supporting your people at every stage of the employee lifecycle.
