This may be a repayment of CIS deductions (if you work in the construction industry), PAYE tax or tax paid on savings income. It may also be an amount reallocated by HMRC to an existing debt.   When you are ready to file your TAX RETURN  Click VALIDATE MY TAX RETURN     Select the YES radio button on the question; have any Income Tax refunded or set-off by the Job Center?     Enter the Amount   Proceed to the Payment Page