Investors in the U.K. can once again hold cryptocurrency exchange-traded notes (ETNs) in a tax-free vehicle after fintech startup Stratiphy received approval to offer them in a special class of individual savings account (ISA), according to a report by the Financial Times on Wednesday.

Stratiphy, a fintech platform that allows users to personalize their investment strategies, is offering both crypto ETNs and Innovative Finance ISAs (IFISAs), the wrapper authorized to invest in them, the FT reported.

ISAs allow users to save up to 20,000 pounds ($27,000) a year without paying income tax or capital gains tax on the returns. The two most common types are cash ISAs, which pay interest, and stocks and shares ISAs, which invest in equities and…