Fans of the AFLW competition will be let into all matches for free once again in 2018, as AFL CEO Gillon McLachlan confirmed the news on Wednesday.

Big crowds have attended matches during the competition's inaugural season, and McLachlan believes the league needs to build momentum before they begin to start charging fans.

"We're not going to be rushing into charging people because we're trying to build something," McLachlan said.

"[Have to] make sure this has depth, momentum and real traction before we begin to charge."

The only time spectators have had to pay during the current season have been when matches have been paired with JLT Community Series fixtures, but all standalone matches during the 2017 AFLW season have been free of charge.

Despite there being talk of the Grand Final being a ticketed event, it's also likely to be free for fans to attend.