Hello there, @CSEF.

Let me provide you with some insights about printing a large batch of checks in QuickBooks Online (QBO).

I understand that you only print large batches of checks once a year, so upgrading to Advanced might not seem necessary. However, please note that the feature to print a large batch of checks is only available in the Advanced version. So, I suggest upgrading your subscription if you want to print a large batch of checks.

Here's how:

1. Log in to your QBO company.
2. Go to the Gear Icon, and select Subscription and Billing.
3. Ensure that your payment info is up to date.
4. In the QBO section, select Upgrade your plan.
5. Review the available plans and then select Choose Plan.
6. Follow the on-screen steps to upgrade your plan.

For more detailed information, check this article: Upgrade or downgrade your QBO edition

I've included an article to guide you set up your print settings: Configure your print settings for printing checks

Feel free to leave a comment below if you have any other questions about printing large batches of checks. I'm always here to help. Wishing you and your business continued success.