As part of the controls introduced in recent years to tackle money laundering and tax evasion, like many other countries in Europe France has restrictions on the use of cash payments for the settlement of debts.
Until now that limit has been set at €3,000, requiring that any debt over this sum be settled by cheque, card payment or bank transfer.
With effect from 1st September this limit has been lowered to €1,000.
It is a rule that applies both for debts between consumers and businesses and for business to business transactions.
However, it does not apply for transactions between private individuals, which remain unhampered by limits.
https://www.french-property.com/news/money_france/cash_payments_limits