Melbourne midfielder Jake Melksham has been fined $10,000 for providing misleading information regarding an investigation into activity on his betting account.

The incident occurred last year, while Melksham was serving a 12-month doping ban for his involvement in Essendon's supplements saga.

The AFL has stated that the activity did not relate to betting on AFL matches, but "came to its attention because it appeared the Melbourne midfielder had allowed his account to be used by a someone else".

He has been fined under Rule 2.5(c) of the AFL rules, which states a player cannot "give any false or misleading evidence to any hearing, investigation, inquiry or appeal conducted under the AFL rules and regulations".

It appears the former Bomber did not inform AFL investigators that someone else had placed a bet using his account.

"It is crucial for the integrity of the competition that participants in the AFL give honest evidence in the course of investigations under the AFL rules," AFL general counsel Andrew Dillon said in a statement on Thursday afternoon.

"Jake has acknowledged his mistake in this case, is genuinely remorseful and will assist us to deliver this message in the future to players coming into the AFL competition."