Navigate your web browser to the DeviantArt home page.
Create a new account by clicking the "Join DeviantArt for free!" button in the top left corner of the web page. Simply log in to your account by clicking the "Login" button if you already have a DeviantArt account.
Upload sample work to your DeviantArt homepage. Click the "Submit" button to open a file browsing window. Highlight any image file on your computer and click "OK" to upload it to your personal DeviantArt page.
Use your Journal to post about commissions. The journal is like a blog that is displayed next to your work on your Deviantart homepage. Mention any pertinent information in your post such as subject matter, turnaround times, cost and availability. Consider doing a few commissions for free to get valuable practice. Doing work for free may also generate positive publicity for your art, which can help with future endeavors.
Advertise your work in DeviantArt groups. Groups are collections of users that share a common interest, style or theme. There are thousands of groups on DeviantArt covering an incredible array of different topics. Look for groups that may be interested in your work if your art has a specific theme, style or subject matter. Groups can also help you network, allowing you to meet artists who may have worked with your clients.
Decide on a payment system that is secure and easy to use. Paypal is a popular option for many artists because it allows clients to pay for work over the Internet. Cash or check can be used with a valid mailing address, though this method may increase your turnaround times.