SDLTM85940 - Compliance: Interest


Interest on unpaid tax: Contract settlements

If the enquiry is to be settled by a contract settlement the interest should be calculated the liability included in the calculation of the expected offer.

Any such interest should be calculated up to the anticipated date of payment in the settlement offer.

In other cases the interest due will be added automatically by the computer. The interest may have to be recorded as part of the yield from the enquiry.

It should be emphasised to the purchaser that interest is not a penalty. Interest is charged on tax paid late in order to

  • encourage payment at the right time
  • compensate the Exchequer for the delay in payment
  • remove the advantage which those who pay late would otherwise enjoy over those who pay at the right time

Interest is charged at a rate based on a broad average of the net cost of borrowing and provides normal commercial restitution for the delay – just as repayment supplement or interest is intended to compensate the purchaser.

Interest should be calculated as though the correct liabilities had been assessed and had become final.

Unless all the tax has been paid on account, see SDLTM85960, the likely date of payment will have to be estimated and the interest calculated up to that date.

Any material delay in settlement will normally necessitate revision of the interest figure. Advising the purchaser of the daily or weekly figure for the accruing interest when the computation is issued may be advisable in some cases.

(This text has been withheld because of exemptions in the Freedom of Information Act 2000)