Ive been through the 'accept card payments with paypal' routine several times, but still I have no 'PAY' button on my invoices?

Welcome to the Community forum, @dalewilsoncnwch-. 

Typically, you'll be able to enter your payment information for a specific invoice when you click the Review and pay button. Let me help you show this button.

However, our Payments Team recently updated the layout when a customer pays an invoice online. Part of the security update is when you open up the email, you'll need to download the invoice first for you to preview it.

Also, if the payment link becomes unavailable, the email preference may be set to Plain Text. Let's try checking your Account and Settings and see if there are changes made to your Sale Preferences. Follow the steps below:

1. Go to the Gear icon at the top.
2. Choose Account and Settings.
3. Tap the Sales menu.
4. Click the Online Delivery section.
5. In the Additional email options for invoices drop-down, choose Online invoice.
6. Select Save, then Done.

Additionally, you need to ensure that your settings are correct to allocate the payments to an accounting allocation in the PayPal app. To do this you need to open "Apps" in your account. Then, click on "My Apps" Click on actions and make sure your account settings are set up for your PayPal transactions. That should do the trick.

If you want to reconcile your PayPal transactions in QuickBooks, feel free to read this article: Reconcile an account in QuickBooks Online.

That's it! @dalewilsoncnwch-. You can leave a comment below for additional questions about Payments. I'll be around to lend you a helping hand. Have a good one!