RingCentral Fax tops the list of the best cheap online fax services, offering a very nice unlimited plan at a reasonable price. This plan costs less than $40 per month and comes with two fax numbers and free phone and web support whenever you need it. RingCentral Fax also has three other plans available, including their Fax 500 plan, which is perfect for companies who only send or receive faxes occasionally. This online fax service has a very user-friendly interface and integrates well with several third-party programs, including Google Drive and Dropbox. It also integrates with email so you can forward faxes to your email and view them from your inbox. This, along with several other great features, are what has made RingCentral our top-rated online fax service and well worth the money. Get Details

MetroFax also earns a spot on this list thanks to its nice selection of online faxing tools and a competitive price. MetroFax doesn't charge any setup fees with their plans, and you can get up to 2,500 pages for just over $40 per month. Additional pages only cost $0.03, which is fairly low considering that some other online fax services charge $0.10 or $0.15 per additional page. The meter on the dashboard clearly displays how many faxes you have left for the month, so you always know where you're at. MetroFax allows you to forward your faxes to your email, and you can add up to ten email addresses, though any beyond the first costs an additional $2.00 per month. You can also easily add or import contacts to MetroFax, making them an excellent solution for companies with large contact lists. Get Details

Nextiva offers three different online fax plans to choose from, including their vFax Business Pro plan, which gives you 3,000 pages for less than $30 per month if you pay up front. This is a great deal and could be the perfect solution if price is your main concern when selecting an online fax service. However, Nextiva is missing several features found in the other fax services on this list, and that could be a problem for some people. You can't send faxes internationally with Nextiva, and you must input contact information manually, which could take a long time if you have a long list. That being said, Nextiva still offers a quality product for the price and could still make a good fit if low price is your top priority. Get Details