What is payment processing and how does it work for businesses?
Merchant Payment Processing

What is payment processing and how does it work for businesses?

7 min read

Payment processing is what turns a customer’s tap, swipe, or click into money in your business account. It’s the system that moves a payment from the customer’s card or wallet, checks that it’s valid, and helps get the funds to you safely.

For you, that means faster checkout, fewer headaches, and a better experience for every sale. If you’re running a storefront, an online shop, a restaurant, or a mobile business, the right setup keeps payments moving.

If you’re working with Moneris®, a Canadian company backed by RBC and BMO, you’re also getting a partner built for Canadian business. We’ve been doing this for 25+ years, and we support 325,000+ points of commerce across Canada.

What payment processing actually does

At its core, payment processing connects four things:

  • your customer
  • your business
  • the banks and card networks
  • the system that moves the payment securely

It makes sure the card or wallet is valid, the customer has enough available funds or credit, and the payment can be approved. Then it helps move the money to your business after the sale.

Think of it like a secure relay. The payment starts with your customer and ends with your deposit. The whole thing usually happens in seconds.

How payment processing works step by step

Here’s the simple version.

1. The customer makes a payment

This can happen in a few ways:

  • tapping a card or phone in-store
  • entering card details online
  • paying through a mobile device
  • using a digital wallet like Apple Pay or Google Pay

2. The payment details are captured

Your terminal, checkout page, or payment app collects the information. That could be a card chip, a tap, or encrypted online payment details.

Security matters here. Good payment systems protect card data as it moves.

3. The payment request is sent for approval

Your payment processor sends the transaction to the card network, such as Visa or Mastercard. The network passes it to the customer’s bank, also called the issuing bank.

4. The bank approves or declines the transaction

The issuing bank checks a few things:

  • is the card valid?
  • is there enough money or credit?
  • does anything look suspicious?

If everything looks good, the bank approves the payment. If not, it declines it.

5. The sale is completed

If the payment is approved, your business gets the green light to finish the sale. The customer walks away with the product, service, or meal.

6. The money is settled and deposited

Approved transactions are grouped together and settled later. That’s when the money moves from the customer’s bank through the payment system and into your business account.

Depending on your provider and payment method, this can take a little time. But the sale itself is already done.

The main players in a payment transaction

A lot happens behind the scenes. Here’s who does what.

PlayerWhat they do
CustomerStarts the payment
Your businessSells the product or service
Payment terminal or gatewayCaptures the payment details
Payment processor / acquirerRoutes the transaction and handles settlement
Card networkMoves the request between banks
Issuing bankApproves or declines the payment

If you sell online, you’ll also hear the term payment gateway. That’s the secure bridge between your checkout page and the payment processor.

Payment processing for different types of businesses

Every business runs a little differently. Your payment setup should fit the way you sell.

In-store sales

If you run a retail shop, salon, clinic, or service counter, you need fast, reliable checkout. A terminal like Moneris Go Terminal helps you take card and wallet payments smoothly.

If you want a full point-of-sale experience, Moneris Go Retail POS and Moneris Total Commerce can help you connect sales, inventory, and reporting in one place.

Online sales

If you sell on your website, payment processing needs to be simple for your customers and easy for you to manage.

Moneris Online powered by Wix gives small businesses an easy path to start taking payments online. For businesses that need more flexibility, Moneris Gateway helps connect your ecommerce checkout to secure payment processing.

Mobile sales

If you’re always on the move, you don’t want to be tied to a countertop.

With Tap to Pay on iPhone and Android through the Moneris Go app, you can accept payments without extra hardware. That’s a strong fit for pop-ups, delivery, line-busting, trades, and events.

Restaurants and food service

Restaurants need speed, accuracy, and less friction at the table, counter, or online order page.

That’s where UEAT® comes in, along with tools like self-ordering kiosks and restaurant-focused POS options. You can take orders, accept payments, and keep service moving.

Omnichannel businesses

If you sell in-store, online, and on the go, you want one clear view of your business.

That’s where omnichannel payment processing helps. It connects all your sales channels so you can see what’s happening in one place.

What payment processing costs

Payment processing usually comes with fees. That’s normal.

The exact cost depends on things like:

  • card type
  • payment method
  • in-store or online sale
  • transaction size
  • risk level
  • the provider’s pricing model

You may see fees such as:

  • interchange fees — paid to the customer’s bank
  • network fees — paid to the card network
  • processor fees — paid to your payment provider
  • chargeback fees — if a customer disputes a transaction

The lowest fee isn’t always the best choice. If a payment system is slow, clunky, or not built for your business type, it can cost you sales.

Why payment processing matters to your business

Good payment processing does more than move money.

It can help you:

  • get paid faster
  • reduce checkout friction
  • support card, tap, and digital wallet payments
  • lower the risk of fraud
  • cut down on abandoned carts
  • keep your books cleaner
  • give customers a smoother experience

In other words, it helps your business feel easy to buy from. That matters.

Security is a big part of the job

A strong payment processor should protect your business and your customers at every step.

Look for tools like:

  • PCI-compliant systems to protect card data
  • Kount Essential for AI-powered transaction monitoring
  • 3-D Secure 2.0 for extra cardholder authentication online
  • CVV verification to help confirm the card is in hand
  • real-time alerts and fraud monitoring

These tools help reduce chargebacks, stop risky transactions, and keep legitimate sales moving.

What to look for in a payment processor

If you’re choosing a provider, keep it practical. Ask yourself:

  • Does it work where I sell?
  • Can it handle in-store, online, and mobile payments?
  • Is it secure?
  • Is support available when I need it?
  • Does it fit my industry?
  • Can I see my sales clearly in one place?
  • Will it grow with my business?

A good payment partner should make your day easier, not harder.

How Moneris helps Canadian businesses

Moneris® is Canada’s leading commerce solutions provider and the #1 merchant acquirer in Canada, according to the Nilson Report (Oct 2025). We power 325,000+ points of commerce and process 5 billion+ transactions annually.

That scale matters, but what matters more is what it means for you:

  • reliable payment processing across Canada
  • in-store, online, and mobile options
  • tools built for retail, restaurants, professional services, trades, not-for-profit, public sector, enterprise, and small business
  • 24/7 support in English and French
  • on-site field services when you need hands-on help

We also give you ways to manage and troubleshoot your business with:

  • Help Centre at support.moneris.com
  • Merchant Direct for account management
  • Developer Portal at developer.moneris.com
  • service status updates at status.moneris.com

If you’re looking to grow, we’ve got you there too. Solutions like Moneris Advance can help you access funds in less than 72 hours after approval, and Installments enabled by Visa can help you offer flexible payment plans.

The bottom line

Payment processing is the engine behind every card tap, online checkout, and mobile sale. It helps your business accept payments securely, get approved quickly, and receive funds with less friction.

The best setup is the one that fits how you sell today and can grow with you tomorrow. If you want one partner that can handle in-store, online, and mobile commerce in Canada, Moneris is built for you.

Your next step? Choose a payment solution that makes checkout easier for your customers and life easier for you.