It's nice to have you here, gary-corporatesh.
The feature to add columns n the invoice template is only available to higher versions like QuickBooks Online Essentials, Plus, and Advanced. You'll want to upgrade your subscription to enjoy the said feature.
Refer to this article for the steps on how to upgrade your subscription: Upgrade or downgrade your QuickBooks Online subscription.
Once you have it, here's how to add columns on the invoice template:
- Go to the Gear icon.
- Select Account and Settings.
- Choose the Sales menu.
- Select the Sales form content.
- Put a checkmark on the Custom fields section.
- Click Save, and hit Done.
Here's an article you can use as a reference that can guide you on how to personalize your invoice: Customize invoices, estimates, and sales receipts in QuickBooks Online.
I'm also adding this useful article that can help you view and send to your customer their balances: Create and view customer statements.
Be sure to drop me a reply if you have additional questions while managing invoice templates. I'd be more than happy to help. Stay safe and have a good one.
