Contributions calculator

Using the contributions calculator

Up to the 15 January 2021, the calculator at the bottom of the page can be used to calculate the 2019 rates.

From 15 January 2021 you can use the calculator for quarters A, B, C and D 2021.

The calculator can:

• calculate the amount of primary (employee) contribution that you may deduct from an employee’s gross earnings
  

• calculate your secondary (employer) contribution, including any additional payment for employees whose gross earnings are between the monthly Standard Earnings Limit of £4,610 and the monthly Upper Earnings Limit of £21,030
  

​Employers must pay a 2.5% rate on their employees’ earnings, between the Standard Earnings Limit (£4,610) and the Upper Earnings Limit (£21,030). 

Monthly paid employees

Enter the gross monthly earnings figure rounded down to the nearest pound (eg £2536.75 should be entered as £2536.00).

While this is intended for use as a monthly calculator, it can also be used to calculate the contribution due on earnings for weekly paid employees.

Weekly paid employees

Enter the gross weekly earnings amount (including pence). The calculator is set up to always round down to the nearest 25p (eg £567.49 will round to £567.25). At the end of each month, enter the gross amount paid to your employee (this could be four or five weekly payments, depending on the month) to calculate the contributions due for the month. The gross earnings for each month is the amount you should enter on your contribution schedule.

What to include as earnings

For further information on what should be incorporated in the gross wage see our schedule guide.

Items not to include in an employees gross wages
Items to include in an employees gross wages

Temporary 4% employee contributions calculator

Between 1 October 2020 and 30 June 2021 Social Security contributions will temporarily reduce employee contributions by 2%, from 6% down to 4%. 

• self-employed people are entitled to the 2% reduction
  
• the reduced rate will be eligible on incomes of up to £4,558 per month from October to December 2020 and £4610 from January to June 2021.
  
• employer contributions remain unchanged
  

Contributions calculator during the temporary reduction to 4%

2020 Social Security Contributions Calculator at 6%