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 One-stop shop for all payment  solutions for your business

Madison, CT Headquarters

Reliance Merchant Services provides credit card and debit card processing for businesses with in-house customer service. Our combination of people and technology delivers a customer service package that exceeds all competition.

RMS assists businesses of all sizes in accepting all major credit cards and debit cards via retail, internet and mail order solutions. At RMS, we understand and deliver the essentials in payment processing – efficiency, cost-effectiveness and the delivery of exceptional service to customers.

 Why Choose RMS: 

  • Cost Effective: Our pricing is better than any other industry provider.

  • Small Business Friendly:  We work with businesses of all sizes and understand the needs of Small Businesses.

  • Customer Service:  We pride ourselves on our face to face customer service.

Industry Testimonials

Select industry or industries


“Mary Kate and her team are the best! I have used Reliance as my credit card processor for 10+ years! Most recently, her team helped me transition my POS system - it went seamlessly! Highly recommend!”

Christena Abate – Owner

Ridgefield, CT

Car Dealership

“RMS is a breath of fresh air in a highly commoditized industry. After years of using another provider, we decided to switch to RMS. Mary Kate and the team took the time to understand our business and its unique needs. They developed a package that resulted in savings in our 1st month. We estimate over $25k savings this year on fees. Even more importantly, the customer service is amazing. Emails receive a prompt, highly informed response and technical instructions are clearly communicated.”

Jennifer Volz – Vice President

Bill Volz Westchester - Cortland Manor, NY | Meadowland GMC – Carmel, NY | Meadowland of Carmel – Carmel, NY | Brewster Ford – Brewster, NY

Products & Services
Credit Card

  Recurring Billing Solutions  


  Restaurant Online Ordering 


  Next Day Funding  

Increase your cash flow with this organizational tool that assures prompt payments. Whether your clients are billed monthly or occasionally, our recurring billing product can charge their credit card automatically, therefore conveniently taking away their bill clutter and burden. 



Our online ordering product is economical and completely user friendly. You can increase your average ticket size by offering a simple ordering system and have a marketing database at your fingertips. These orders are sent directly to your kitchen printer.


For qualified merchants, we are happy to offer next day funding. This is an exceptional tool for cash flow. Any Visa, MasterCard or Discover transactions before 5:30PM EST on any business day will fund directly into your bank account on the next business day.



Payment Gateways:

Point of Sale Systems (POS):

Hardware Devices:

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