A senior French court has rejected Monaco's request to suspend a French Football League (LFP) decision which would end the newly-promoted principality club's privileged financial status.
Having had their budget for the 2013-14 season ratified by the DNCG, French football's financial watchdog, on Friday, Monaco will play in Ligue 1 next season.
However, their future in the competition beyond that remains uncertain after the Conseil d'Etat, France's highest court for administrative issues, rejected the club's appeal against an LFP decision which would force them to be based in France for tax purposes by June 1, 2014.
The move, which was voted for by the LFP's Administrative Council on 21 March, would mean Monaco's financial advantage over their Ligue 1 rivals would disappear.
Currently, as a result of the principality's laws and accords between Monaco and France, players employed at the Stade Louis II cost the club three times less than they would if they played for a French-based counterpart.
Should Monaco fail to comply with the directive, they could face expulsion from LFP competition.
Though judge Alain Menemenis reminded both parties a definitive decision on Monaco's request to annul the decision would only arrive in the coming months, and that his initial ruling would have no bearing on that, the LFP were cautiously optimistic, saying in a statement: "It undeniably comforts the LFP's move, which merely aims to re-establish a certain equality in the competition."
At Thursday's two-hour hearing in Paris, Monaco had argued the uncertainty over their fiscal status had caused them to put their summer squad strengthening on hold, and claimed they had only spent an estimated €130 million on Radamel Falcao, Joao Moutinho and James Rodriguez because they had already entered into contractual agreements with the trio prior to the LFP vote.