The Department for Business and Trade claimed that Oxford United failed to pay its lowest-paid employees the legal minimum wage.
A government investigation found that the club failed to pay 31 employees a total of £10,826.74.
Oxford United claimed that the underpayments, which occurred between 2015 and 2018, had been resolved as of late.
The club released a statement in which it stated that it "took steps to ensure this would not recur, and these are constantly reviewed across all areas of the business.".
The government identified 202 companies that violated the National Minimum Wage Law, Oxford United being one of them.
The statement read, "The club accepted all recommendations and made all necessary repayments before the case was closed at the end of 2018.".
The government claimed that it wanted to convey the idea that no employer is exempt from having to pay employees the legal minimum wage.
Kevin Hollinrake, Minister for Enterprise, Markets, and Small Business, stated that paying the legal minimum wage is non-negotiable and that all businesses, regardless of size, should know better than to underpay dedicated employees.
A total of 63,000 employees were not paid nearly £5 million by the companies, it was discovered.
By deducting pay from wages, failing to compensate employees for their working time, or paying the incorrect apprenticeship rate, employers underpay their workforce.
The Low Pay Commission's Bryan Sanderson, the chair, stated that violators of the minimum wage law "not only do a disservice to their staff but also undermine fair competition between businesses."