Per local requirements, I need to printout a "Payment Voucher" for each Bill payment, and a "Receipt Voucher" for each Invoice receipt. Can QBO print these vouchers?

I can help you with printing out your payment and receipt voucher.

Yes, QuickBooks Online can print those vouchers. You can go to the Expenses page to print your payment voucher. Follow the steps below.

Here's how:

1. Go to the Expenses menu and click the Filter dropdown and choose Bill Payments. 
2. Click on Apply.
3. Select the View/Edit link under the Action column for the specific bill payment. 
4. Click the Print button at the bottom. 
5. Select the Print button. 

For the Receipt voucher:

1. Go to the Sales menu and then click the All sales menu.
2. Find the sales receipt or the payment. 
3. Select the View/Edit link under the Action column for this transaction.
4. Click the Print button at the bottom.
5. Select the Print button.

Here's more information about entering bills and record bill payments and then creating and sending invoices in QuickBooks Online. 

Then, here's how to troubleshoot common printing issues when using QuickBooks Online: Fix QuickBooks Online printing issues on browsers for Windows. 

Let me know if you need further help printing payment and receipt vouchers. I'm always here to assist. Have a great rest of the day!