How to add pay now button in invoice

I can share some information about setting up online payments, @bringmegroceries. 

The feature to add the pay now button in your invoices is currently unavailable in QuickBooks Self-Employed (QBSE) UK. Having this feature in QBO is indeed a great idea and I'll surely take note of this. For now, I suggest checking out our QuickBooks Blog for updates on the program. 

In the meantime, you can process your customer payment outside QBSE. Then, on the New invoice page, enter your banking information in the Payment Details box. Then, select the Save payment details for future invoices checkbox so you no longer need to enter them every time you create an invoice. 

To know more about creating and sending your invoices in QBSE, refer to the following article: Create invoices in QuickBooks Self-Employed.

After you get the invoice payment, click the Mark as paid button under the Action column on your Invoices page. 

Then, add this transaction manually to recognize it as an income. Check out this article for detailed guidance: Manually add transactions in QuickBooks Self-Employed. Or categorize this transaction right away if the bank is connected to your QBSE account from your Transactions page as Business Income.

Feel free to post again here if you have further concerns in processing invoice payments. I'm always around to help. Take care always!