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HMRC internal manual

Claimant Compliance Manual

HM Revenue & Customs
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Particular Aspects: Child Care - Calculating Average Weekly Child Care Charges (from 6 April 2003)

From 6 April 2003, the customer should calculate costs as follows:

Fixed Weekly Costs

The customer arrives at the average weekly childcare costs by adding together the weekly costs for the last 4 weeks and dividing the total by 4. In practice, of course, as the costs are fixed, the customer should enter their current weekly cost.

Variable Weekly Costs

The average weekly costs are calculated by adding the total paid in childcare in the last 52 weeks and dividing that by 52 (including any nil weeks). If it is less than 52 weeks since the customer started using registered childcare, then the customer should work out what they expect to pay in the next 52 weeks and divide that by 52. In arriving at this figure, the customer should include all periods within the 52 weeks, even where they did not / do not expect to, incur any childcare costs.


The customer only pays childcare during school holidays and has paid £60 per week during the previous Easter Holiday (2 weeks) Summer Holiday (5 weeks) and half terms (3 weeks). The average weekly childcare to be entered on the claim form would be:

£60 x 10 weeks = £600 (annual amount), divided by 52 equals £12 weekly amount (rounded up).

Monthly fixed costs

Customers who pay a fixed monthly cost will arrive at the weekly figure to enter on the claim form by multiplying their monthly cost by 12 and then dividing by 52.

Monthly variable costs

For those who don’t pay the same amount every month, they should calculate their average weekly cost by adding together the amounts paid over the last 12 months and dividing by 52.