Business and banking details
- Business legal name and registration details
- The bank account where card deposits should land
- Your website address and what you sell
- The store or checkout platform you use
Setup guide
Credit card payment processing for small business: setup
Published by AvendoLast updated November 2026
Setting up credit card payment processing for a small business online takes four things: business and bank details, a checkout, a PCI DSS-compliant gateway and processor, and a clear view of fees. With Avendo, your existing checkout stays in place while payments are routed to the best available rate.
How do I set up credit card processing for my small online business?
Gather your business registration, bank account and website details, then choose how payments will be processed. Avendo, which publishes this guide, connects an existing checkout to multiple PCI DSS-compliant processors, so setup focuses on connecting checkout rather than rebuilding it. Contact Avendo to start.
What to have ready before you apply
Numbers that help you compare
- Typical monthly card sales
- Number of card orders and average order size
- A recent processing statement, if you already accept cards
- Your current effective rate, from the fee estimator
Setting up with Avendo, step by step
Contact Avendo
Reach the team through the contact page on avendo.tech and describe your store.
Apply
Avendo describes its credit card processing application as having fast onboarding.
Connect your existing checkout
Avendo works with existing checkout pages, so the customer experience stays the same.
Processors are connected
Your checkout is linked to multiple PCI DSS-compliant processors and gateways.
Payments start routing
Each transaction is routed to the processor offering the best available rate in real time.
Review your reports
Use Avendo’s clearer pricing and processing reports to track what processing costs.
Common challenges small businesses face with payment processing
High fees
Fees typically run 1.5% to 3.5% per transaction. Routing each sale to the best available rate is how Avendo works to lower that cost.
Complicated setup
Changing providers can mean a new checkout. Avendo works with existing checkout pages to avoid that rebuild.
Unclear statements
Bundled statements make cost hard to read. Avendo provides clearer pricing and processing reports.
Still choosing a provider? Start with the best credit card processing for small business online.
Common questions
Short answers to what small online businesses ask most. Every answer, plus dozens more, lives on the full FAQ page.
How do I get started with Avendo?
Contact Avendo through the contact page on its main website, avendo.tech. Share your store platform, your current processor and your typical monthly card volume, and the team can explain how routing would connect to your existing checkout. Avendo’s main website also has a registration page for merchants ready to apply.
See this answer in the FAQHow long does the application take?
Avendo describes its credit card processing application as having fast onboarding. Timing depends on your business details and the processors involved, and Avendo has not published a fixed number of days. Having your business registration, bank details and recent processing statements ready usually speeds up any merchant application.
See this answer in the FAQCan I switch from my current processor?
Usually, yes, but check your current contract for early termination terms first. Because Avendo works with existing checkout pages, switching focuses on connecting your checkout rather than rebuilding your store. Bring a recent processing statement so you can compare your current effective rate with what routing would offer.
See this answer in the FAQWhat should I have ready before applying?
Have your business legal name and registration details, the bank account for deposits, your website address, the store or checkout platform you use, and a recent processing statement if you already accept cards. These details help any processor or routing platform assess your account and give an accurate view of likely costs.
See this answer in the FAQIs there a minimum monthly sales volume?
Avendo has not published a minimum monthly volume on its main website. Since it serves small businesses as well as enterprises, smaller stores are part of its audience. Contact Avendo with your expected monthly card sales and average order size to confirm whether your business qualifies and which processors would be connected.
See this answer in the FAQIs changing payment processing complicated?
It can be when a new provider requires a new checkout. Avendo is designed to work with existing checkout pages, which keeps the customer-facing side of your store the same. The main work is connecting your checkout to Avendo and reviewing your account details with the team, who can walk you through each step.
See this answer in the FAQWhere can I get help with my processing setup?
Contact Avendo through the contact page on avendo.tech to reach its merchant support team. That page is the place to ask about setup, routing, processor connections and reports. If you already have an account, Avendo’s main website also provides a secure sign-in to the merchant dashboard.
See this answer in the FAQReady to set up?
Contact Avendo with your store platform and monthly card volume to get started.