Payment Processor
- Your processor routes the transaction, gets back the approve or decline, and settles the money into your bank
- The word gets used loosely. It can mean the technical router, the acquirer holding your account, or an all-in-one like Stripe, Square or PayPal. For most small businesses it's one company
- They control your pricing, your payout timing, your fraud tools, and whether your account stays open
- It's the most consequential vendor decision you'll make
A payment processor is the company that handles your card transactions. A customer taps "Pay." The processor takes the card details and routes them through Visa or Mastercard to the customer's bank. It gets back an approve or a decline. Then it settles the money into your bank account. That last part isn't instant.
The term gets used loosely. "Processor" can mean the company doing the technical routing. It can mean the acquirer holding your merchant account. It can mean an all-in-one platform doing both, like Stripe, Square or PayPal. For most small businesses they're the same company.
Why It Matters
Your processor is the most important vendor you have. They decide:
| What They Control | Impact |
|---|---|
| Your pricing | How much you pay per transaction (2.6-3.5% is the typical range) |
| Your payout timing | When money hits your bank (1-3 business days, sometimes longer) |
| Your fraud tools | What built-in fraud protection you get |
| Your chargeback experience | How disputes are communicated and managed |
| Your uptime | If they go down, you can't accept payments |
| Your account stability | They can freeze or terminate your account |
Two Models
Bundled (Payment Facilitator / PayFac)
Stripe, Square, Shopify Payments and PayPal act as payment facilitators. You sign up in minutes. You process under their master merchant account. They handle the rest.
| Pros | Cons |
|---|---|
| Fast setup (minutes, not weeks) | Flat-rate pricing (overpay at higher volume) |
| No underwriting hassle | Less pricing flexibility |
| Built-in fraud tools | Account freezes with little warning |
| Simple dashboard | Limited customization |
Best for: under $500K/year, anyone who wants simplicity, anyone just starting.
Standalone (Gateway + Merchant Account)
The traditional setup. You hold a merchant account with an acquirer like Worldpay, First Data or your own bank. A gateway like Authorize.net or NMI connects it to your checkout.
| Pros | Cons |
|---|---|
| Interchange-plus pricing | Setup takes days to weeks |
| More stable accounts | Underwriting required |
| Negotiable rates | More vendors to manage |
| Direct relationship with acquirer | More technical complexity |
Best for: over $500K/year, high-risk MCCs, anyone who needs pricing control.
How to Choose
It comes down to volume and complexity:
| Your Situation | Recommended Path |
|---|---|
| Just starting, under $10K/month | Stripe or Square (fastest setup) |
| E-commerce, $10K-$100K/month | Stripe, Shopify Payments, or PayPal (still simple) |
| Growing, $100K-$500K/month | Start comparing interchange-plus options |
| Over $500K/month | Dedicated merchant account + gateway, negotiate rates |
| High-risk MCC | Specialized high-risk processor (PayKickstart, Durango, etc.) |
| In-person sales | Square or Stripe Terminal (best hardware integration) |
What to Watch For
- Effective rate creep. Work out total fees divided by total volume every month. If it climbs with no explanation, either your pricing changed or you're taking more downgrades. Anything above 3.0% card-not-present is worth a look.
- Reserve holds. Some processors hold back a slice of your sales, especially on new or high-risk accounts. Read the terms before you sign, because you won't renegotiate them later. A 10% rolling reserve on a $50K month locks up $5,000 of your money.
- Termination clauses. Know what gets your account shut off. Usual triggers: chargeback ratio over 1%, sudden volume spikes, prohibited products. Termination can land you on the MATCH list. That entry sits for five years and makes a new merchant account very hard to get.
- Payout delays. Two business days is standard for most processors. Seeing 7+ days consistently? Something's wrong. Ask your processor why.
- Support quality. Your payments go down at 8pm on a Friday. Can you reach a human? Test that before you need it.
Common Mistakes
- Choosing on rate alone. The cheapest processor with bad support won't stay cheap. Saving $25 a month means nothing if they freeze your account for two weeks.
- Not reading the contract. Early termination fees, minimum monthly fees, PCI non-compliance fees, batch fees, statement fees. Read the fine print, or make your processor walk you through every line.
- Running too long on flat-rate. Stripe's 2.9% + $0.30 is simple, and it's expensive at volume. At $50K/month, interchange-plus can save $200-$500 a month.
- No backup processor. Your one processor freezes or goes down, and you're not taking payments. At $100K+/month, a second processor is worth the setup cost.
See Also
- Buying Payments Guide - End-to-end guide for selecting and onboarding a processor
- Processor Comparison - Side-by-side comparison of major processors
- Processor Fees Guide - Understanding all the fees your processor charges
- Processor Management - Managing the ongoing relationship with your processor
- Holds and Reserves - How processors hold funds and when reserves apply
- The merchant blacklist (MATCH) - What happens if a processor terminates your account