Plan 1 loans: Are any repayments I have made direct to the SLC taken off my Self Assessment bill?
No. You can make voluntary repayments direct to the SLC at any time. But if you do so, these payments will not reduce the amount that you have to pay under Self Assessment and should not be included on your tax return.
If you have made repayments direct to the SLC because you have been working abroad and then complete a Self Assessment return, HM Revenue & Customs (HMRC) will calculate your loan repayments without considering any direct repayments. We cover what you can do on our page, What happens to my student loan if I go abroad?.
If, however, you are employed and repayments have been deducted under Pay As You Earn (PAYE) by your employer, these do come off the amount due under Self Assessment.