One way to improve the experience of paying invoices online is to make the payment flow more intuitive and reduce the number of steps required. Many small businesses prefer a clean, distraction-free payment page where customers can review the invoice, choose a payment method, and complete checkout quickly without creating an account or navigating multiple screens.

It would also help if the system offered clearer status updates (such as “payment initiated,” “processing,” or “successful”), along with automated confirmation emails. Mobile-friendly optimization is another big improvement point because many clients pay directly from their phones.

In general, businesses benefit when invoicing tools integrate seamlessly with their broader sales or billing systems. For example, solutions like this one:
https://www.rockeye.com/sales-invoicing-solutions.html

focus on smoothing the invoicing workflow end-to-end, which ultimately improves the customer payment experience as well.

Adding more of these usability features to the Intuit payment flow would make the process faster, clearer, and more convenient for both businesses and their clients.