Knowledge Base

Sonder Payments is not just a credit card processor. We are specialists in all payment methods. While credit card processing is what we’re known for, we also offer e-invoicing, ACH, and other payment methods. In this article, we’ll discuss ACH payment, what they are, and how you can accept them using your Sonder Payments membership. […]

PCI Compliance is a fairly common point of discussion in the payments industry — but what does it take to be compliant?

The Sonder Payments application might seem complicated, but completing it is simpler than you might think. Utilize this simple guide to get through it!

What do we mean by “true cost” and how is it different from “cost”?

Chargebacks are a reality for all businesses, but many of them can be avoided. Learn how here.

Sonder Payments is a membership-based payment processor. So what exactly does it mean to be a member?

Learn more about what happens after you submit your Sonder Payments application.

Learn more about why Sonder Payments operates on a membership basis, and what benefits it can bring to your business.

If you want your Sonder Payments application to be approved fast, be sure to include these documents when you submit your application.

Get answers to some of the most common questions we get asked about our Transaction Express online terminal.

Get answers to some of the most common questions we get about our Virtual Terminal Plus service.

Take a look at each of the major pricing methods for credit card processing, including how Sonder Payments’ membership model works.

Accepting credit cards can get expensive, so why even bother?

If you want the most basic definition of interchange, this is it: interchange is the cost of completing a credit card transaction.

There are five key players in every credit card transaction. Becoming familiar with each, and being conscious of the roles they play, will aid in your understanding of how credit card payments work.