It was launched following a series of high-profile cases of foreign interference in British politics, including the conviction of former Reform UK MEP Nathan Gill for taking bribes to promote pro-Russian narratives.
The cryptoassets recommendation is particularly relevant to Reform UK, which is currently the only party at Westminster known to have received donations in the digital currency.
Last May, Reform UK leader Nigel Farage announced his party would accept donations in Bitcoin, a type of cryptocurrency.
In October last year, Farage said, external the party had already received a "couple" of crypto donations.
Reform UK's website says, external it does not accept anonymous donations and any donations above £500 are subject to checks.
In the UK, parties must check donations over £500 are from permissible sources, which include people listed on the UK electoral register.
An Electoral Commission spokesperson said: "To date, no parties have reported cryptoasset donations to the Commission."
In an Observer article, external, a Reform UK spokesperson said all of its crypto donations "are converted into cash by a regulated third party [?that] does this for us".
"Reform itself has no wallet," the spokesperson said. "The party meets all its legal responsibilities."
The BBC has asked Reform UK for comment.