
Every dollar you leave on the table matters. Payment processing looks simple until it starts stealing margin month after month. The truth: many popular platforms promise convenience but quietly raise costs, hold funds, or lock you into equipment and pricing that no one notices until it is too late.
Table of Contents
- Why most businesses overpay for payment processing
- PayFacs vs Traditional Merchant Accounts: The core differences
- Underwriting triggers and the dreaded funds hold
- Speed of funding: why next-day funding matters
- Pricing models explained: flat-rate vs interchange plus
- Passing fees to customers: surcharging and dual pricing
- Locked equipment and switching processors
- QuickBooks, Intuit, and invoicing options
- International cards, interchange differences, and chargeback nuance
- Why American Express looks more expensive
- Emerging payments: buy-now-pay-later and crypto
- Practical steps to stop overpaying right now
- How to evaluate a switch: a practical timeline
- Common pricing scenarios and expected savings
- What to ask a prospective processor
- Real-world example: the creeping fee problem
- High-risk verticals: why a specialist matters
- Long-term relationship: why an engaged processor wins
- Final thought: convenience is great until it costs you
- FAQ
- Next steps: a simple action plan you can follow this week
- Closing
Why most businesses overpay for payment processing
Businesses typically overpay for one or more of these reasons:
- They choose convenience over structure. Platforms like Square, Stripe, and PayPal (PayFacs) make it painless to start accepting payments. That convenience often masks higher, flat-rate pricing and limited contract protections.
- They never read or reassess their statements. Rates creep up in tiny increments. Over 3, 5, or 10 years those fractions of a percent add up to thousands in lost profit.
- They misunderstand who underwrites risk and how funds are protected. Traditional merchant accounts and PayFacs handle underwriting, reserves, and chargeback exposure very differently. Those differences show up as hidden costs and pauses on funds.
- They’re stuck with locked equipment or proprietary gateways. Free terminals and bundled POS systems can be impossible to switch away from without buying new hardware or paying early-termination material costs.

Simple fixes exist. But first, you need to understand the mechanics behind payment processing so you can make smarter decisions that keep cash flowing and margins intact.
PayFacs vs Traditional Merchant Accounts: The core differences
At the heart of payment processing is a tradeoff between two models: the PayFac (payment facilitator) model and the traditional merchant account model. Both accept cards. Both swipe, key, and route transactions. But how they underwrite, where risk sits, and how funds move vary dramatically.
How traditional merchant accounts work
Traditional merchant accounts are underwritten per business. That means banks and processors:
- Register your business under a specific merchant category code (MCC).
- Review business financials, volume, average ticket size, and how you accept payments (in-person vs online).
- Perform background and credit checks, and often request bank statements, tax filings, or processing histories for higher-volume businesses.
- Set pricing using interchange-plus or tiered structures that reflect the true cost of each transaction.
This deep underwriting exists because processors shoulder the risk for months after a transaction clears. A chargeback can be initiated up to six months after the product is delivered or service rendered. If a business goes out of business or does not have the funds, the processor absorbs the immediate loss and then attempts to recover it. That is why proper underwriting and reserve planning matter.

How PayFacs (Square, Stripe, PayPal) work
PayFacs operate on a master merchant account. Rather than underwrite each business in depth upfront, they enroll many sub-merchants under a single, master account. Enrollment is fast and often only includes a background check and a review of basic business information.
The tradeoffs are clear:
- Onboarding is quick and frictionless.
- There is less individualized underwriting at the start, which increases the chance that a business will be subject to a delayed, after-the-fact review.
- If a PayFac triggers a full underwriting later, they can put a hold on funds, hold deposits, or even terminate the account for compliance reasons or perceived risk.

When those post-signup audits happen, funds can be frozen for days, weeks, or even months. The communication channel is often limited to email or support tickets, leaving businesses scrambling without a dedicated rep to call.
Underwriting triggers and the dreaded funds hold
Two realities to keep in mind:
- Chargebacks have a long life. Depending on the card brand and the nature of the sale, disputes can be filed months later.
- PayFacs can decide to pause or hold funds if anything in your processing pattern looks unusual.
If a platform decides to investigate, they will audit your files. While that audit completes, processed sales that were not yet deposited may be retained. If the audit finds red flags and the account is closed, the platform can continue holding funds until they deem the risk mitigated. That means a business that thought its money was safely in the pipeline can suddenly see large balances withheld for months.

Speed of funding: why next-day funding matters
Cash flow is the lifeblood of a business. One major advantage of traditional processors: faster, predictable funding.
- PayFacs commonly settle in two to five business days. Some, like PayPal, may not move funds out of their own wallet until you manually transfer them.
- Many traditional processors offer next-day funding, and at worst two-day funding for higher-risk profiles.
- Faster funding reduces the need for short-term lines of credit, keeps payroll on schedule, and prevents vendor strain.

Pricing models explained: flat-rate vs interchange plus
There are two dominant pricing philosophies. Understanding them will help you stop overpaying.
Flat-rate pricing (common with PayFacs)
Flat-rate pricing bundles all interchange, network fees, and the processor margin into a single percentage per transaction—think 2.6% plus a cent but often stated simply as 2.9%. This is attractive for convenience and predictability. But the downsides:
- It may overcharge you compared to interchange-plus for low-risk, in-person swiped transactions.
- There are sometimes additional charges for keyed transactions, instant transfers, or advanced fraud tools.
- Because the fee is all-in, there is limited ability to optimize price when your acceptance profile would qualify for lower interchange rates.
Interchange-plus (typical with traditional processors)
Interchange-plus separates the card network’s interchange fee from the processor’s markup. Your statement shows the actual interchange cost plus a small fixed markup. Benefits:
- Greater transparency — you see what the card networks charge and what your processor earns.
- Potentially lower costs for businesses with favorable transaction mixes (higher rates for swiped vs keyed transactions).
- Flexibility to negotiate or change the processor markup without being tied to a single flat fee.
Smart businesses compare the effective cost of the flat-rate vs interchange-plus for their specific transaction mix and volume. Often, interchange-plus wins for medium-to-high volume or predictable card-present sales.
Passing fees to customers: surcharging and dual pricing
Some merchants want to pass processing costs onto customers. There are two established ways: surcharging and dual pricing. Each has rules and limits.
Surcharging
Surcharging is a regulated program and must be done correctly.
- Not allowed in some states. Currently six states restrict surcharging.
- Requires registration with Visa and Mastercard and proper disclosure at the point of sale and on receipts.
- Only applies to true credit cards. You cannot surcharge PIN debit transactions or certain non-credit “check” cards even if they carry a Visa or Mastercard logo.
- The surcharge must reflect the actual cost passed through to the processor and you may not profit from the surcharge. That means you cannot add an extra margin on top of the processing fee.

Dual pricing
Dual pricing avoids the regulatory complexity of surcharging by offering two posted prices: one for cash and one for card. The customer chooses. Points to remember:
- Dual pricing is framed as a discount for cash rather than a penalty for card.
- It can be applied to any payment method, not just credit cards.
- It does not require Mastercard or Visa surcharge registration because it is technically a posted cash discount.
- Systems and point-of-sale must clearly display both prices and calculate them correctly at checkout.

Both options help control processing costs, but they must be implemented correctly and in compliance with card network and state rules. A botched surcharge risks fines or account termination.
Locked equipment and switching processors
Free terminals and zero-cost POS setups are rarely free in practice. Many vendor-supplied devices are locked to a platform. That means:
- You cannot reprogram them to a new processor without breaking terms.
- You may have to buy replacement hardware to switch.
- Terminals are small computers with built-in costs; providers recover that cost through monthly fees, interchange margin, or contract lock-ins.

If you want to switch, expect one of three paths:
- Buy or lease new, unlocked equipment that is processor-agnostic.
- Find a processor who supplies compatible terminals or offers to buy out your existing equipment obligations.
- Use a software-based solution for online or invoice payments where hardware is not required.
Free hardware does exist, but it is almost always tied into other economics that will cost you across the lifetime of the merchant agreement.
QuickBooks, Intuit, and invoicing options
Many B2B companies use QuickBooks and rely on Intuit Payments for invoicing and card acceptance. Intuit delivers seamless integration but often at a premium price. If you want to reduce processing costs without losing integration:
- Look for payment gateways or middleware that integrate with QuickBooks but route transactions through a lower-cost processor.
- Use third-party invoicing platforms that post back to QuickBooks as paid once the payment is processed.
- For purely online invoicing, switching processors is usually a back-end configuration task rather than a hardware replacement.

There are several third-party solutions that replicate Intuit’s flow while offering better pricing. For businesses with high invoice volume, the savings compound quickly.
International cards, interchange differences, and chargeback nuance
Accepting cards from abroad is largely supported because global banks issue Visa and Mastercard. However:
- Interchange rates are generally higher for international cards due to increased risk and different regulatory environments.
- Chargeback procedures and banking rules vary by country, which increases fraud and dispute risk.
- Processors may apply additional international transaction fees or currency conversion charges.

If you sell globally, plan for higher processing costs and use fraud tools and address verification systems. Understand which fees are fixed vs variable so you can price products accordingly.
Why American Express looks more expensive
American Express used to be a closed ecosystem that required direct relationships and commanded higher rates. Changes in the past decade loosened that model, but two realities keep Amex expensive:
- Card mix. Amex tends to be used more by corporate and business cardholders. Those card types carry higher interchange rates across all card brands.
- Amex sets its own interchange categories and rates, often placing many cards in higher-cost cohorts.

Processors can now route Amex through off-us relationships that reduce costs compared to the old direct-only model. Still, expect Amex transactions to be pricier than basic consumer Visa or Mastercard swipes.
Emerging payments: buy-now-pay-later and crypto
Buy-now-pay-later (BNPL) solutions and cryptocurrency acceptance are on the rise, but they sit outside traditional processing flows.
- BNPL is usually an add-on that sits above the payment rail. It offers increased conversion but can add fees and separate reconciliation.
- Crypto acceptance appeals in industries underserved by traditional banking, like cannabis, but volatility and regulatory uncertainty slow mainstream adoption.
For high-risk verticals, crypto may gain traction faster. For most mainstream businesses, BNPL and crypto are supplementary options to evaluate, not replacements for core merchant accounts.
Practical steps to stop overpaying right now
Here is a pragmatic checklist to reduce processing costs and improve cash flow:
- Gather 12 months of statements. You cannot analyze costs with a single month. Look for trends and annual increases.
- Calculate effective blended rate. Divide total processing fees by total volume to see your real percentage cost.
- Identify swipe vs keyed vs online mix. Swiped transactions usually cost less. If you key a lot of transactions, negotiate for keyed rates or move to card-present hardware.
- Ask for interchange-plus pricing. If you are on a flat-rate model and your volume is significant, interchange-plus will likely be cheaper.
- Check hardware ownership and lock-in clauses. Know whether your terminals are locked, whether there are equipment chargebacks for early termination, or hidden monthly fees.
- Investigate surcharge or dual pricing eligibility. If margins are tight, dual pricing can legally offset processing costs without surcharge complexity.
- Confirm funding schedule. Request next-day funding and confirm timing in writing.
- Talk to a real rep. A dedicated relationship beats anonymous email tickets. Ask how disputes, holds, and audits are handled and who you call when a problem arises.

How to evaluate a switch: a practical timeline
Switching processors sounds intimidating, but a clean, organized approach turns it into a simple project:
- Collect statements and transaction data.
- Request a line-by-line analysis of current fees from potential new processors.
- Compare effective blended rate and monthly cost savings.
- Confirm hardware compatibility or replacement needs. If equipment is locked, factor replacement cost into the first-year ROI.
- Plan the backend switch for online or invoice processing (gateway changes, API keys, or middleware). Test with low-volume transactions first.
- Communicate change to staff and update receipts, signage, or website payment pages as needed.
- Monitor the first 30 days closely for funding behavior and any unexpected fees.
Most switches take only a few business days to complete once contracts and equipment are sorted. The savings appear immediately on statements and cash flow.
Common pricing scenarios and expected savings
Below are example scenarios to help you estimate potential savings. These are illustrative; actual savings depend on transaction mix and volume.
- Small retail shop processing $50,000/month with 85 percent card present transactions: switching from a flat 2.9% to interchange-plus can save 0.5 to 1.2 percentage points. At $50,000/month, 0.8 percent is $400/month, $4,800/year.
- B2B services with invoices processing $100,000/month through a flat QuickBooks/Intuit setup: moving to a gateway with lower per-transaction fees and interchange-plus can save $1,000s annually, especially if transaction counts are high with low average tickets.
- High-risk merchant paying 5%+ due to vertical risk: negotiating specialized high-risk programs can bring rates down by 0.5 to 1.5 points while providing better service and stability.
Small percentage improvements compound rapidly with volume. When margins are already thin, these savings can be the difference between profitable growth and flatlined cash flow.
What to ask a prospective processor
When speaking with a processor, be direct. Ask for:
- Effective blended rate and representative customer statements with similar volumes.
- Funding schedule and any circumstances that could delay funding.
- Specifics on equipment ownership, lock-in clauses, and buyout policies.
- How they handle underwriting, reserves, and chargebacks. Who do you call if there is a hold?
- Whether they support surcharging or dual pricing and how they implement it.
- Which fraud and chargeback mitigation tools are included or available and at what cost.
- Support access—direct rep, phone, email, or ticketing—and SLA for urgent issues.

Real-world example: the creeping fee problem
Imagine a business that opened a merchant account five years ago at 1.8 percent effective rate. Small network and account fees were buried. Over five years, the processor implemented small annual markup increases—0.1 to 0.2 percent—citing infrastructure or compliance costs. Without a dedicated rep auditing statements, the merchant never noticed.
Today the effective rate is 2.9 percent. For a $200,000 annual volume that difference is nearly $2,200 lost to creeping fees. Multiply that by several years and the number becomes significant. Regular audits and a transparent pricing model prevent that erosion.
High-risk verticals: why a specialist matters
High-risk industries like cannabis, adult services, or certain nutraceuticals face tighter banking restrictions. Generic processors either refuse business or levy punitive rates and reserves.
- Specialist processors understand regulatory nuances and can structure accounts to reduce reserve requirements.
- They provide guidance on compliance, documentation, and risk mitigation so your business remains operational and not suddenly shut down.
- Working with a specialist often produces better terms and more reliable service than trying to fit a high-risk company into a mainstream payment platform.

Long-term relationship: why an engaged processor wins
Payment processing is not a one-time procurement. It benefits from an ongoing relationship where someone is watching rates, addressing disputes, and advocating for your account. A dedicated rep who does regular statement reviews will catch creeping fees, recommend better hardware or pricing, and help you implement compliant surcharging or dual pricing when appropriate.
Relationships are why many merchants stay 10 or 15 years with the same provider—service, stability, and predictable costs matter.
Final thought: convenience is great until it costs you
Easy onboarding and “free” equipment are seductive. So are flat-rate promises. But convenience always has a price. By understanding underwriting, funding cadence, interchange dynamics, and equipment lock-ins, you can make choices that preserve margin while keeping the customer experience smooth.

FAQ
What is the main difference between Square/Stripe/PayPal and traditional processors?
Why do PayFacs sometimes hold funds or pause deposits?
Can a business legally pass processing fees to customers?
Are free terminals really free?
How much can I realistically save by switching processors?
What should I do first if I suspect I am overpaying?
Are American Express transactions always more expensive?
Is crypto a viable payment alternative for mainstream businesses?
How do international card transactions affect my fees?
Next steps: a simple action plan you can follow this week
- Pull the last 12 months of processor statements and calculate your blended rate.
- Ask a trusted processor for a comparative savings analysis using your actual transaction data.
- Confirm whether your hardware is locked and what replacement costs would be.
- If surcharge or dual pricing is of interest, request a compliance checklist and implementation plan.
- Choose a provider who offers a dedicated rep and transparent interchange-plus pricing.
Small, deliberate actions now can reclaim thousands of dollars a year and stabilize cash flow. Spend an hour analyzing your statements and you will either save money or gain peace of mind that your current provider is earning its fees legitimately.
Closing
Payment processing is a core business function. Treat it like one—document everything, ask precise questions, and favor transparency over convenience when margin matters. The right partner will reduce friction, speed funding, and keep your fees from quietly creeping upward.
If you want to explore specifics and see a customized cost-savings analysis, bring your statements and hardware notes. Numbers tell the real story and will show whether a switch will pay for itself within months.






