If I cancel my quickbooks subscription, in order to start new/reset my account, will it also cancel my merchant account / force me to get a new merchant ID and all that?

Welcome to the Community, @billing60.

Your merchant account won't get cut if you choose to cancel your QuickBooks Online (QBO) account. Aside from canceling, you may also consider purging your QBO to clean slate. I'd be glad to discuss this in detail and guide you in getting things done.

Purging allows you to delete all your QBO information so you can use the same account and start fresh if you're still in the first 60 days of using it. Know that this process works for all Plus and Essentials versions only. If you're ready, please follow these steps on how to purge your account:

Here's how to purge the data: 

1. Log in to your QuickBooks Online account.
2. Look at the URL in your address bar and change all the text after the last " / " with purgecompany. Example: https://...qbo.intuit.com/app/purgecompany
3. Type the word “YES” to agree, then click OK.
4. Hit Wipe Data.

But if you prefer canceling your QBO account, you can follow these steps:

To cancel your account:

1. Go to the Gear icon and choose Account and Settings.
2. Select the Billing & Subscription tab.
3. In the QuickBooks section, click Cancel Subscription or Cancel Online.
4. Select Continue to cancel.
5. Follow the next steps.
6. Click Submit and cancel subscription.
7. Hit Got it.

To resubscribe:

1. Go to https://quickbooks.intuit.com/choose-country/.
2. You can enter the same login credentials.
3. Go back to the Billing & Subscription page.
4. Click the Resubscribe button.

If you have other concerns, please let us know. Have a great day.

@billing60 

If you have to open a new QBO account, make sure to click the Buy button to get the discounted price for up to 6 months. If you purchase from the trial account, you have to pay the regular price.

https://quickbooks.grsm.io/US

https://quickbooks.grsm.io/us-promo

I originally subscribed in May 2022 and migrated my Desktop data to online Essentials. I mistakenly then continued to make new entries only on the Desktop QB. Since it has been over 60 days, I have been told I cannot migrated May-Dec data to Online.

So can I have canceled the subscription. Can I then subscribe again and migrate all data to online?

@Phoenix4eyes 

You can cancel the old account and signup for a new one with the same email address. Then you can convert your QB Desktop file again to the new account.

https:// quickbooks.grsm.io/US

https:// quickbooks.grsm.io/us-promo

Let me provide some details about resubscribing to QuickBooks Online subscription, Phoenix4eyes.

You're given read-only access to your QuickBooks Online (QBO) data for one year after your account has been canceled. Yes, you can re-subscribe to the online version if it's still within a year so you can migrate your data from QuickBooks Desktop. To reactivate QBO, follow the step below:

1. Sign in to your QuickBooks Online company.
2. Select Settings ⚙.
3. Under Your Company, choose Account and settings.
4. Select Billing & subscription, then Resubscribe, and enter the updated billing information.
5. Select Subscribe.

After you've reactivated your QBO account, you can now start moving your data from QuickBooks Desktop to the online version. Learn from this article what benefits you can get after moving your data to QBO: Moving Your QuickBooks Desktop File To QuickBooks Online.

Additionally, both desktop and online versions use different terms when it comes to the menu option, check out this article so you'll know what are these. And what information in QuickBooks does or doesn't move: Learn How Features And Data Move From QuickBooks Desktop To QuickBooks Online.

Fill me in if you need anything else when migrating QuickBooks I'll be right here to help you anytime.