Click here to create an account on Wikimedia Commons automatically, where Wikipedia's images are stored. You can log in there using your same Wikipedia user name and password.
Click the "upload file" link in the menu to the left.
Follow the instructions to upload the file. It's the same procedure as most websites, although we only accept "freely licensed" images. If you're not sure that your file is freely licensed, please only upload it if you took the photo yourself.
After the image is uploaded, click the "Use this file" button at the top of the image page (with the W) and copy the "thumbnail" code.
To add the image to your user page you just need to replace {{New user bar}} with {{New user bar|image=PASTE THE IMAGE CODE HERE}}.
Not ready yet?
Watch this short video about adding images to Wikipedia →