Can you send Interest on Accounts Receivables that is calculated in IFirm to quickbooks, as the payments are sent?

Hi khuffman1,

It's great you were able to calculate the interest amount that needs to be applied to your A/R. I know there may be times when you need to add interest for products and services you sell in QuickBooks Online, and I'll be happy to show you how.

For an interest charge to hit your Accounts receivable in QBO, it needs to be added manually to the invoice. To achieve that, you first need to create a Product/Service designated for your service fee, which you'll then use to apply to the desired invoice. Here's how. 

Create a service fee item or non-inventory product

1. Go to the Gear icon.
2. Select Products and Services.
3. Click New.
4. Select Service or Non-inventory if you wish.
5. Fill in the information, including an account. Leave the price section blank to enter as needed on the invoice.
6. Click Save.

At this point, all you're left to do is add this Product/Service as a new line in the invoice of your choice, and include the appropriate dollar amount. Keep an eye on tax rates if applicable. For more details on this procedure, I recommend going through this article: Add service fees manually to invoices

I hope this helps! You're always welcome to stop by if you need anything else.