The Economic Control Committee of the Spanish football association has found there has been no misconduct from the Catalan club in the transfer.
The Spanish football association (LFP) has cleared Barcelona over the signing of Neymar.
The transfer is still being investigated by the Spanish High Court because of contradicting statements from the Catalan club about how much they paid for the Brazil international, but the LFP has not found any wrongdoing.
"FC Barcelona wish to express their satisfaction at the resolution of the Economic Control Committee of the Liga Nacional de Futbol Professional (LFP) that there is no existence of any irregular conduct committed by FC Barcelona in the signing of Neymar Jr. The Committee met last Wednesday, April 23rd and its decision was published last Friday," the statement on the club's website read.
"According to the committee: "in view of the appeal made to the LFP by FC Barcelona, there is no evidence of any irregular conduct committed by the Club which would have infringed the rules and regulations of the LFP. As a result of this, no further action in this matter will be taken.""
The statement continued: "The Economic Control Committee of the LFP ordered FC Barcelona to provide a series of documents in February and having analysed them in full has reached the decision that there were no irregularities whatsoever by the Club in the signing of Neymar Jr.
"In a spirit of transparency, FC Barcelona would like to place on record its complete willingness to continue to provide the committee with any further information related to the signing."