TCM0078580 - Tax Credits Manual - HMRC internal manual
You don’t need to follow this guidance if the claim has been awarded the claim has been withdrawn. Background The Rule 12 pre-award residency verification failure MU is populated when the customer tells us on their tax credits claim form any combination of the following they are subject to immigration control they live outside the United Kingdom (UK) they work outside the UK. Different specialist teams will work the Rule 12 verification failure depending on the nationality of the customers and what caused the Rule 12 verification failure. Note: for customers who are UK nationals follow the...
Source: gov.uk