Is the available space for the forms stored on the account

The Upload Space limit refers to your forms, which uses a file upload field. The submissions can have file attachments on them and these files will take up the "Upload Space" limit. Please note that this does not reset. This is fixed. If you wish to free up your upload space, you can delete submissions, which have file uploads on them.

In order to better understand your usage and limits, you can check this guide:

https://www.jotform.com/help/408-Understanding-Your-Account-Usage-and-Limits

Let us know if you need any further assistance.