Can my customers and vendors enter their banking details into QuickBooks directly, through a form that QuickBooks provides? I want to keep that data secure in transit.

Thank you for posting here in the Community, TomAtACX.

I'll share some information about entering vendor and customer bank information.

A form that would let your customers and vendors enter their bank information can be very helpful in transmitting personal information securely. Currently, this option is unavailable in QuickBooks Online. 

For your customers, you'll be the one to enter their banking information to process ACH bank transfers. You'll also need to have your customer sign the authorization letter to be able to save the information. Feel free to read this article to learn more about the process: Process an ACH bank transfer from a customer.

For your vendors, you'll want to consider using  Online Bill Pay so you can invite them to enter their bank information. After setting up your account, follow these steps to invite your vendors:

1. Click the + New button. 
2. Choose Pay Bills Online.
3. Select Set up Bank Transfers within the same line as the payee.
4. Click Invite vendor to receive bank transfers, then click Next.
5. Enter the vendor's email address.
6. Customize the message by choosing the edit icon (if applicable).
7. Select Send invite.

For additional resources while working with your customer and vendor transactions, just check out some topics from these pages:

• Sales and customers
• Expenses and vendors

If you need additional assistance in handling your vendor and customer transactions in the future, just tag me in the comment section. I'm always here to help.