Negotiations with France on frontalier unemployment payments are due to conclude at the end of the week.
The outcome could mean significant changes to how much money an unemployed border-worker will receive, and for how long.
France is facing a financial crisis with rising debt and is seeking to cut public spending.
The French are complaining that frontaliers pay into the Swiss social insurance system – but when out of work, benefits are paid by France. The amount tends to be higher as it’s based on the previous salary.
Last year, France paid €1 billion in unemployment benefits to cross-border workers, but only received €200 million in reimbursements.
It’s not just Switzerland which is causing this problem. France also has an issue with those working in Luxembourg.