This tax deduction scheme for interest (TDSI) bulletin has information about form R85 and related helpsheet (2015 versions).
This content is obsolete from 6 April 2016.
TDSI bulletin 44 has information about updates to form R85 and the related helpsheet.
There is more information available for financial institutions on how to operate the scheme.
TDSI bulletins up to number 38 are held at The National Archives.
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