Basic users are entitled to 20 uploads within a 7 day period. The date of roll-over is determined by the day of the week that you uploaded your first image to 500px. Once you reach your 20 image upload limit, you will need to wait until the 7 day period is over before you can upload again. It is important to remember that the uploading algorithm is based on rolling uploads. If you upload 20 images on a Monday, then it will roll over to 20 uploads the following Monday.
**So, just keep in mind if you are showing 7 images left to upload and you upload all 7 that day, you may have another 3 available the next day because they have rolled over from the week before.**
You will be notified of how many uploads you have left within the time period when you upload an image. At the bottom of the upload screen, the following message will appear: "You have "X" photos left this week. Upgrade to Awesome, Pro or Pro+ for unlimited uploads!"
If you have exceeded your uploads for the period, you will be redirected to our Upgrades page (https://500px.com/upgrade) when you try to upload. The following message will appear at the top of the screen: "Looks like you reached your upload limit for this week! You can upgrade below for unlimited uploads."