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HMRC internal manual

Tax Credits Manual

HM Revenue & Customs
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Stopping Tax Credits - Award Declaration (capture) - specified dates


The Award Declaration notice must be completed and returned to HMRC by the In Year Specified Date (IYSD), providing actual income details. The IYSD date will be determined by the NTC system, which will calculate the IYSD date as being 30 days from the day the In Year S17 (IYS17) was issued.

If a reply to an Award Declaration has not been received by this date, the UY award will be finalised based on a calculation using the UY-1 details held on the system.

You can, where appropriate, change the specified dates. To do this you must use Function ‘Maintain IY Finalisation’. Follow the guidance in TCM0346200.