You can resubscribe by going to the Subscriptions and billing section of your QuickBooks Online (QBO) account.
To proceed, sign in to your QBO account. Go to the Gear icon > Subscriptions and billing > Resubscribe. From there, enter the updated billing information. Once finished, click Resubscribe.
Please note that we retain your company data for 365 days following the cancellation date. If you decide to resubscribe within that time frame, your data will still be accessible. If your cancellation date exceeds one year, you will need to purchase a new subscription.
Let us know if there's anything else you need help with.