1. set up your payment gateway integrations. PayPal and Square are available in the “integrations” section on the left hand toolbar.
Follow the instructions for the payment gateway setup.
2. Select your invoice settings to accept online payments.
In the invoice section, click “settings” and click to accept online payments, change your currency, memo and terms
You can also change individual invoices to allow or not allow online payments in the individual invoice settings
3. Your online payment options will appear for your client at the top of their invoice