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HMRC internal manual

National Insurance Manual

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HM Revenue & Customs
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Class 1 structural overview - post April 2003: structural changes: the Class 1 and 2 maximum: examples: one Class 1 employment and self-employment: Class 2 due

Example 5

J Spencer is both employed and self-employed. His total earnings for the 2011/2012 tax year from his Class 1 employment are £72,000. He is paid £3500 per month and receives a £15000 bonus in June and December. His maximum Class 1 and 2 liability is calculated as follows:

Step 1

Deduct the relevant Primary threshold from the relevant UEL and multiply that figure by 53.

817 - 139 = 678 x 53 = 35934

Step 2

Multiply the result of step 1 by 12%

35934 x 12% = 4312.08

Step 3

Add together so much of the person’s earnings from each employed earner’s employment as exceeded the Primary Threshold but did not exceed the Upper Earnings Limit.

3500 (monthly earnings) - 602 (monthly PT) = 2898 x 10 = 28980

3540 (monthly UEL) - 602 (monthly PT) = 2938 x 2 (June + Dec) = 5876

Total 28980 + 5876 = 34856

Step 4

Deduct from the total found at step 3 step the amount produced by step 1

34856 - 35934 = minus 1078

Step 5

If the figure produced at step 4 is a positive figure multiply that figure by 2%. If the figure produced at step 4 is a negative figure, it is treated for the purposes of step 8 as nil

Nil

Step 6

Add together so much of the person’s earnings from each employment as exceeded the Upper Earnings Limit.

37000 (monthly earnings Jun + Dec) - 3540 x 2 (monthly UEL) = 29920

Step 7

Multiply the result of step 6 by 2%

29920 x 2% = 598.40

Step 8

Add together the results of steps 2, 5 and 7.

4312.08 + nil + 598.40 = 4910.48

J Spencer’s maximum for the 2011/2012 tax year is £4910.48 

Since the employee will not have met his maximum by payment of Class 1 NICs, payment of Class 2 NICs is required.

The reason why the employee has not met his maximum is that in ten of the twelve months his earnings did not reach the monthly UEL. The employee will not have paid main rate Class 1 contributions at 12% on earnings amounting to 53 x the UEL less the PT and some Class 2 NICS will be due.