Can I cancel my subscription ? I just want to try the 30 day free trial.

Welcome to the Community, jersey022004.
 

Yes, you can cancel your subscription, but it depends on how you signed up. Make sure to cancel before the 30-day trial period is over to avoid charges.
 

For QuickBooks Online (QBO), here's how:
 

1. Go to the Gear icon, then select Subscriptions and billing.
2. Click Cancel.
3. Select Continue to cancel.
    

If you signed up via the App Store or Google Play Store, you can refer to the complete guide provided in this article: Cancel your subscription.
 

For more questions, feel free to reply to this thread. We’re here to assist.