You can renew QuickBooks subscription account form account and by following these option:
•Open QuickBooks and go to ‘Your account’ option.
•Click on a subscription or renew option and click on ‘Already have an activation code?’ option.
•You can enter the promotion code and apply to complete the process.
•Or you can purchase by clicking on ‘need to buy multiple companies?’ option.
•Provide the number of subscription and click ‘subscribe now.’
•Now you can provide the billing information and check the terms and conditions.
•You will get the activation code to your email address and follow the screen instruction to the complete the payment.
•Once payment is made, QuickBooks subscription will be renewed easily.
These steps will be able to help you in the subscription renewal, but also you can call QuickBooks support for further support.