Does QuickBooks Online have an ACH authorization form for me to send to my vendors so they can enter their bank information?

Let me provide some information about adding vendor details for QuickBooks Bill Pay, TammieMB.

At this time, QuickBooks Bill Pay does not offer an ACH authorization feature that allows vendors to input their information. Instead, you'll have to manually enter it within QuickBooks Online (QBO). Please know that any additional or new details you add for them in the Bill Pay service will update existing payment information for such profiles.

Here's how:

1. Log in to your QBO account and select the Expenses menu.
2. Next, click Vendors.
3. Then, locate the appropriate vendor by searching or looking through the vendor list.
   
4. Once opened, you can now view and edit their information.

For reference, go to the View or edit your vendor's payment information in this article: Learn about QuickBooks Bill Pay.

Should you have other concerns about editing or adding your vendor's details, please drop a reply below. I'd be glad to provide answers and steps to help you out.

@TammieMB 

You can signup for a separate Melio account for free to integrate with QBO. Every time you schedule a payment, the app will ask how your vendor would like to receive it. You can simply select "Ask vendor for payment details" to proceed.

https://affiliates.meliopayments.com/quickbooks

As an additional perk, you can get $100 as cashback to pay the first bill.

https://affiliates.meliopayments.com/cashback