It is a move that will be closely watched by rival online publishers, who are struggling to make their online ventures pay as online advertising revenue dries up.
Scott Schulman, president of Dow Jones, said, "We have not made any decision about a price hike. We do feel the price is a very low one for the amount of information you can get on the site."
The Wall Street Journal Online costs just $29 (£21) to subscribers of the paper or $59 (£42.80) a year for the online version only.
WSJ.com, while not a profit maker, has 574,000 subscribers and is widely viewed as one of the few successful online subscription models on the web -- a model many publishers would like to ape.
In the UK, the Telegraph Group is one of several online publishers which is strongly considering charging for content.
Earlier this year in the US, Salon.com introduced a premium subscription service and AOL Time Warner increased the monthly charge to AOL.
Other sites, notably Inside.com, have previously failed to raise sufficient subscriptions to continue. Inside.com, which was launched in May 2000 to cover the media industry, failed to hit its target of signing up 30,000 subscribers and was bought by Brill Media Holdings in an all-stock deal valued at between $25m (£17.6m) and $35m (£24.6m).