I'm here to provide the assistance you need, April. I recognize the importance of the Pay button for timely client payments. Let's work together to resolve this quickly and smoothly, allowing a seamless payment experience for your customers.
Before we proceed with troubleshooting, let's ensure your QuickBooks Payments account is active and properly connected to your QuickBooks Online Sole Trader, as an inactive or disconnected Payments account will prevent the Pay button from appearing on sent invoices.
Here's how:
- Go to the Gear icon and select Account and Settings.
- Navigate to the Sales tab on the left panel.
- Click the Pencil icon next to Invoice payments.
- Tick the boxes for all payment methods you want to offer.
- Click Save, then Done.

Next, please verify that your Online Delivery setting is configured to Online Invoice. This adjustment ensures that the Pay button is included in the emailed invoices you send to your clients.
For detailed steps, here's how:
- From the Account and Settings page, select the Sales tab.
- Under Online Delivery, choose Online Invoice as the delivery method.
- Click Save, then Done.

Furthermore, please always preview the invoice in the Payor view before sending it to ensure the Pay button is visible to your customers.

If your customer reports the Pay button is missing, advise them to open the invoice email in an incognito or private browser window. Sometimes, regular browsers or app storage accumulate data or cache that can interfere with displaying the Pay button.
To further support your financial management, consider using this valuable resource to personalize invoices, helping you craft customized invoices that reflect your brand identity: Customise invoices, estimates, and sales receipts.
Your experience is important to us, April. We will actively monitor this thread and are ready to address any concerns you may have with QuickBooks payments. Our knowledgeable Community members are always here to share their insights and expertise, ensuring you receive the support necessary to navigate any challenges.