The 2,000 tax credit customers from the Western Isles of Scotland are being reminded by HM Revenue & Customs (HMRC) that they must renew claims by the 31 July deadline - or their payments may stop.
They are urged to act as soon as they receive a renewal pack from HMRC.
More than 3.3 million claimants renewed by the deadline last year, 80 per cent of those who were required to renew their claim.
The department is also asking claimants to double-check the accuracy of the information in the pack.
HMRC may make follow-up queries with claimants’ employers, to check on the correctness of some of the information.
Claimants must also let HMRC know of any changes in their circumstances that they haven’t already reported during the year.
These could be about their working hours, childcare costs or pay. If asked, they must also provide details of the previous year’s income.
Having the right documents to hand will help reduce errors when they are filling out the form or calling the tax credits helpline.
These would be, for example, payslips, end of year P60 forms and childcare details.