Money Saving Expert Martin Lewis has warned that shops are not acting illegally by refusing to accept cash.
The question comes after many shops have gone contactless since the coronavirus outbreak.
While some shoppers may think it's against the law to refuse to accept cash, the money guru has revealed it is not actually illegal to only accept card.
It comes after a viewer on ITV's the Martin Lewis Money Show asked: "If cash is legal tender, are businesses breaking rules by only accepting cards?"
Mr Lewis's answer was simple, the Mirror reports.
"No, they are not breaking any rules," he said.
"You are allowed to take card only as long as it's not discriminatory for race or disability or something."
This sparked a discussion over the concept of legal tender - was we're sure, many readers have heard the "it's still legal tender!" debate when you try to use Scottish notes in England.
Luckily for us, Martin Lewis took the time to actually explain what 'legal tender' meant.
Mr Lewis said: "The legal tender thing is interesting. Legal tender has a strict definition.
"It means if you have a court awarded debt against you, if someone tries to settle and they're paying in legal tender you cannot refuse it.
"And that's all it means."
Speaking about the concept of cashless society, Mr Lewis had another warning.
"I know many people are saying 'why don't we just switch to a cashless society?'
"I don't want that, because there are many vulnerable people who need cash," he said.
