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The Top 10 Merchant Services Questions Answered: Fees, PCI, and Compliance

The Top 10 Merchant Services Questions Business Owners Ask

Running a business today means navigating a maze of payment options—credit cards, ACH, Apple Pay, contactless terminals, E-Commerce checkouts, and more. Yet most business owners still ask the same core question: “How do merchant services actually work?”

At Nationwide Payment Systems (NPS), we’ve spent over two decades helping merchants understand payments, lower costs, and stay compliant. Here are the Top 10 Merchant Services Questions we hear every week—and the answers that will help you make smarter decisions for your business.

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1. How Do Merchant Services Actually Work?

Every time a customer pays by card, several crucial players are involved: the merchant, the acquirer (processor), the card network (Visa/Mastercard), and the issuing bank.

The Transaction Flow:

1. The customer’s payment info is sent to your gateway or POS system.

2. The processor routes the transaction through the card networks.

3. The issuing bank approves or declines the charge.

4. Funds are settled into your merchant account, usually in 1–2 business days.

With NPSONE, our all-in-one gateway, you can see every step in real time and manage all your payments in one centralized place.

2. What’s the Difference Between Interchange, Processor Fees, and Markup?

Understanding these three costs is the key to minimizing processing fees:

• Interchange: These are the non-negotiable fees set by Visa/Mastercard. They go directly to the customer’s issuing bank.

• Processor Fees: These are the fees your payment provider charges to route and handle the transaction.

• Markup: This is the profit your processor adds on top of the interchange and network fees.

At NPS, we exclusively use interchange-plus pricing. This transparency ensures you always see the true, raw cost of each transaction—there are no hidden margins or “blended” rates.

3. Why Are My Credit Card Processing Fees So High?

Your total rates depend on: the card type (debit vs. rewards vs. corporate), how the card is accepted (chip, online, keyed-in), and your industry/transaction size.

Businesses processing over $50K–$100K per month can often save 15–30% by switching from a flat-rate provider like Stripe or Square to Nationwide Payment Systems, leveraging cost-plus pricing and Level-2/3 optimization for B2B data.

4. What’s the Difference Between a Payment Processor, Gateway, and Merchant Account?

These three components are distinct but interconnected:

• A Processor moves the transaction and handles the funds.

• A Gateway (like NPSONE) connects your POS or website securely to the processor.

• A Merchant Account is the unique financial holding account that holds your funds until settlement.

Big tech providers bundle these services into one generic account. However, NPS offers modular control, which is perfect for businesses that require flexibility, scalability, and transparency.

5. What Is PCI Compliance and Why Do I Have to Do It Every Year?

PCI DSS (Payment Card Industry Data Security Standard) ensures you securely handle customer card data. Every business must complete a yearly PCI self-assessment to verify compliance.

Failure to comply can result in monthly non-compliance fees or significant data breach fines. NPS helps merchants complete this process easily, providing built-in PCI tools and reminders.

6. Can I Pass Credit Card Fees to My Customers?

Yes—but it must be done compliantly to avoid network fines. You have three legal options:

1. Dual Pricing:

   You display two prices—one for cash and one for card (100% compliant).

2. Surcharging:

   You add a fee only to card payments, provided you register with card brands and follow strict state/network rules.

3. Cash Discounting:

   You offer a discount for paying with cash.

NPS ensures your signage, receipts, and POS setup meet all card brand regulations so you can keep more of your revenue safely.

7. How Do I Accept ACH or eCheck Payments?

ACH and eChecks are low-cost alternatives perfect for B2B or recurring invoices.

With Smart Invoicing, our smart invoicing platform, you can:

• Send branded invoices via email or payment link.

• Offer both credit card and ACH options to customers.

• Automatically sync all transactions to QuickBooks Online/Desktop.

• Reduce transaction fees by 80–90% compared to card payments.

8. Can I Use My Existing POS or Gateway with a New Processor?

Often, yes. Many POS systems are processor-agnostic and can be reprogrammed. NPS works with hundreds of POS solutions—including OnePOS, NCR Counterpoint, Clover, and others—plus provides full e-commerce integrations for platforms like WooCommerce, Shopify, and custom APIs.

9. Why Did My Account Get Shut Down or Frozen?

If your processor suspects high chargeback rates, excessive refunds, or high-risk activity, they can freeze funds or close accounts, especially on instant-approval platforms like Stripe or PayPal.

NPS specializes in high-risk merchant accounts and stable, long-term Relationships. We manually underwrite accounts upfront to prevent unexpected disruptions and freezes.

10. What Can Merchant Services Do Beyond Payments?

Today’s merchant services are comprehensive business tools. With NPSONE + Smart Invoicing, you can:

• Automate invoicing and subscriptions.

• Manage ACH, credit, and debit payments in one unified dashboard.

• Integrate Level-3 B2B data to qualify for lower interchange rates.

• Add financing, payroll, or fraud-protection tools via our Merchant Toolbox.

We believe in Payments Powered by People—Technology backed by real support.

Book a Free Consultation with Allen Kopelman — CEO of Nationwide Payment Systems:

https://calendly.com/allen-nps

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FAQ: Frequently Asked Questions