Hello, @MEER--HAMZA. You can change your subscription plan in QuickBooks Online (QBO) through the Subscriptions and billing page. Please note that changing your plan may add new features while making others unavailable.
Here’s how:
Go to the Gear icon in the upper-right corner, select Subscriptions and billing.
In your QuickBooks Online product section, select Downgrade your plan or Upgrade your plan.
Review the available plans and select Choose plan.
Once a prompt appears, Select Continue.
To change your plan, follow the steps provided on the page.