Hello there,

Thank you for reaching out to us here in the Community space. I can clarify and share more information about how the data storage works in QuickBooks Online.

Your attachments remain available as long as you have an active subscription. However, you'll have read-only access to your QuickBooks Online data for one year after you cancel your subscription.

Here are the data availability and export policies after cancelation:

• If you cancel during a free trial or if your trial expires, your data is available for 90 days.
• If your credit card is declined, you have 14 days to update your billing information. During this time you have full access to QuickBooks Online. After that, your account is suspended and you will have to re-subscribe to access your data.
• If you were subscribed to QuickBooks Online, you can export data to Excel or to a desktop version of QuickBooks up to a year after you cancel.
• If your were using a trial version, you must export within 90 days after you cancel.

When accessing an inactive account, you'll get a prompt to resubscribe as soon as you sign in to your QuickBooks Online company. I have a link here I want to share with you for the detailed steps: How to resubscribe to or reactivate QuickBooks Online.

Let us know if you still have more questions about the attachments in QuickBooks. We'll be sure to lend a hand. Take care, and have a great rest of the day.