UK company borrowed money from US trust and paid interest in June 2016. Basic rate tax should have been deducted but wasn't. However, under the UK/US DTT the tax that should have been deducted is in any event reclaimable by the US trust. Provided we complete all the relevant HMRC forms in respect of the trust for the reclaim, will HMRC simply accept an offset and just charge interest on the CT61 tax from 15 July 2016 to the deemed date of repayment to the US trust? Has anyone any experience of doing this?