Nationwide Payment Systems 

Exploring Different Types of Payment Processing for Your Business (2026)

Explore the different types of payment processing, including merchant accounts, ACH, POS systems, and gateways. Learn which option is best for your business. 

Presented by Allen Kopelman, CEO — Nationwide Payment Systems-Host of B2B Vault: The Biz2Biz Podcast 

AI OVERVIEW

There are multiple types of payment processing solutions available today—from traditional merchant accounts to flat-rate platforms, ACH payments, POS systems, and smart invoicing tools. 

Choosing the right type of payment processing can impact your costs, cash flow, scalability, and risk exposure. 

This guide breaks down each option so business owners can understand the differences and choose the best solution based on their business model, volume, and growth goals. 

Why Choosing the Right Payment Processing Type Matters 

Not all payment processing is created equal. 

The wrong setup can lead to: 

• Higher fees  

• Slower funding  

• Limited scalability  

• Account shutdown risks  

• Poor customer experience  

The right setup can: 

• Reduce costs.  

• Improve cash flow.  

• Support growth  

• Give you more control.  

The Main Types of Payment Processing 

Let’s break down the most common options businesses use today: 

 

1. Merchant Account (Interchange-Plus Processing)

This is the traditional and most scalable form of payment processing. 

How it works: 

• You get a dedicated merchant account.  

• Pay actual interchange fees + markup.  

• Transactions are underwritten and approved.  

 

Best for: 

• Businesses processing $25K+ per month  

• Retail stores  

• Restaurants  

• B2B companies  

• Multi-location businesses  

 

Pros: 

• Lower costs at scale  

• Transparent pricing  

• Custom setup  

• Better stability  

 

Cons: 

• Slightly more complex setup  

• Requires underwriting.  

 

💡 Bottom Line: 
👉 This is the best option for growing businesses. 

 

2. Flat-Rate Payment Processors

Examples: 

• Stripe  

• Square  

• PayPal  

 

How it works: 

• Simple pricing (e.g., 2.9% + $0.30)  

• No underwriting upfront  

• Easy onboarding  

 

Best for: 

• Startups  

• Low-volume businesses  

• Side hustles  

 

Pros: 

• Easy to set up.  

• No complexity  

• Quick to start.  

 

Cons: 

• Expensive scale  

• Limited customization  

• Higher risk of account holds or shutdowns.  

 

💡 Reality: 
👉 Great to start… not great to scale. 

 

3. ACH / Bank-to-Bank Payments

ACH allows customers to pay directly from their bank account. 

 

How it works: 

• Funds move through the banking system.  

• No card networks involved.  

 

Best for: 

• B2B businesses  

• High-ticket transactions  

• Recurring billing  

 

Pros: 

• Lower fees (often under 1%)  

• Ideal for large invoices  

• Reduces credit card costs.  

 

Cons: 

• Slower processing time  

• Requires bank authorization.  

 

💡 Key Insight: 
👉 If you're not offering ACH, you're overpaying on larger transactions. 

 

4. Point of Sale (POS) Systems

POS systems combine payment processing with business management tools. 

 

Includes: 

• Payment acceptance  

• Inventory management  

• Reporting  

• Employee tracking  

 

Best for: 

• Retail stores  

• Restaurants  

• Multi-location businesses  

 

Pros: 

• All-in-one system  

• Improves operations.  

• Scalable  

 

Cons: 

• Can be expensive.  

• Requires proper setup.  

 

💡 Important: 
👉 Not all POS systems are created equal—many businesses outgrow basic systems quickly. 

 

5. Payment Gateways (Online Processing)

Gateways connect your website to the payment processor. 

 

Examples: 

• Authorize.net  

• NMI  

• Custom gateways (like NPSONE)  

 

Best for: 

• E-commerce  

• Online services  

• Subscription businesses  

 

Pros: 

• Enables online payments.  

• Flexible integrations  

• Supports subscriptions.  

 

Cons: 

• Requires setup.  

• May involve multiple vendors.  

 

6. Smart Invoicing & Payment Links

Modern payment tools like NPSONE combine: 

• Invoicing  

• Payment links  

• Recurring billing  

• Customer portals  

 

Best for: 

• Service businesses  

• B2B companies  

• Consultants  

• Professional services  

 

Pros: 

• Faster payments  

• Automated billing  

• Accepts ACH + cards.  

• Improves cash flow.  

 

Cons: 

• Requires setup and integration.  

 

💡 Reality: 
👉 This is where the industry is going. 

 

7. Mobile & Contactless Payments

Includes: 

• Tap to pay.  

• Apple Pay  

• Google Pay  

 

Best for: 

• Retail  

• Events  

• Field services  

 

Pros: 

• Fast transactions  

• Better customer experience  

• Secure  

 

Cons: 

• Requires compatible hardware.  

 

How to Choose the Right Payment Processing Type 

Here’s a simple framework: 

If you process under $25K/month: 

👉 Flat-rate may be fine (for now) 

 

If you process $25K–$250K/month: 

👉 Move to a merchant account + gateway 

 

If you’re B2B or invoicing: 

👉 Add ACH + smart invoicing 

 

If you’re retail or restaurant: 

👉 Use a strong POS system + merchant account 

 

If you’re scaling: 

👉 You need a customized solution—not a generic platform 

 

Common Mistakes to Avoid 

❌ Using one solution for everything 

Different payment types serve different purposes. 

 

❌ Ignoring ACH 

You’re paying more than necessary. 

 

❌ Staying on flat-rate too long 

Costs increase as you grow. 

 

❌ Choosing based on ease, not scalability 

Easy now = expensive later. 

 

How Nationwide Payment Systems Brings It All Together 

We don’t believe in one-size-fits-all. 

We combine: 

• Merchant accounts (interchange-plus)  

• ACH processing.  

• Smart invoicing with NPSONE  

• POS systems for retail & restaurants  

• Payment gateways for online businesses  

 

👉 Result: 
A customized payment strategy that grows with your business. 

 

Call to Action 

👉 Book a Demo or Free Processing Review 

We’ll: 

• Analyze your current setup.  

• Recommend the best mix of payment types.  

• Show you how to reduce costs and improve cash flow.