Card Processing, Explained

How fees, approvals and disputes actually work, and how to get paid faster. Written for the people who run the money in a business: owners, controllers, office managers and the ISOs who support them. No jargon without a definition, and no claims we cannot back up.

Fees and how card processing works

What you pay, who gets it, and how to check it.

Reading your merchant statement

Interchange, assessments and markup explained line by line, with a worked example and a checklist of fees to challenge.

Updated September 28, 2026

PCI compliance, explained

Which SAQ applies to you, how hosted pages and tokenization cut the questionnaire from hundreds of questions to a few dozen, and the payment-page rules added in v4.

Updated September 28, 2026

Surcharging and cash discounts

Surcharge caps, notice and disclosure rules, the difference between a cash discount and a disguised surcharge, convenience and service fees, and the state-by-state picture.

Updated September 28, 2026

ACH vs cards

Nacha rules, SEC codes and authorization, settlement and same-day windows, every return code that matters, the return-rate thresholds, and a decision table for ACH versus cards.

Updated September 28, 2026

Approvals, declines and disputes

Why cards fail, what to retry, and how to keep the money you collect.

Decline codes explained

What each response code means, which are hard and which are soft, when to retry, and the network limits on reattempts.

Updated September 28, 2026

Chargebacks explained

The full dispute lifecycle, Visa and Mastercard reason codes, response deadlines, the evidence that wins, and Ethoca, CDRN and RDR compared.

Updated September 28, 2026

Stored credentials and MITs

The transaction types, the required first CIT, the indicators and transaction IDs every follow-on charge must carry, the subscription disclosure rules, and retries.

Updated September 28, 2026

3-D Secure 2, explained

The frictionless and challenge flows, ECI values and liability shift, what it does not protect against, PSD2 exemptions, and a policy for which transactions to authenticate.

Updated September 28, 2026

Chargebacks in travel

The reason codes travel and membership businesses see, the clocks behind them, the evidence each needs, and the receipts, cancellation flow and alerts that keep the ratio down.

Updated October 16, 2026

CIT vs MIT: why it matters

Customer-initiated and merchant-initiated transactions, and why the distinction changes approval rates.

Reference

Getting paid

Invoices, reminders and payment links that actually get opened and paid.

Invoice email design

Table-based layout that survives Outlook and Gmail, dark mode, deliverability, a bulletproof pay button, and a copy-paste template.

Updated September 28, 2026

Text-to-pay compliance

The TCPA, carrier 10DLC registration, CTIA rules and state laws, with consent scripts, opt-out handling, a record-keeping checklist, and the extra frameworks that apply at community banks and credit unions.

Updated October 16, 2026

Reconciling payments in QuickBooks

Why deposits differ from invoices, the clearing-account method, how to record fees, refunds, chargebacks and ACH returns, and a month-end checklist.

Updated September 28, 2026

Payment reminder sequences

The schedule, the email-versus-text choice, wording for every stage from pre-due to final notice, the failed-card sequence, late fees, and the metrics that show it working.

Updated September 28, 2026

Payment plans that collect themselves

Down payments, schedules and term limits, the e-signed agreement, autopay on card or ACH, the four-installment rule, missed-payment handling and the metrics.

Updated September 28, 2026

How text to pay works

What text to pay is, what the customer sees, what it costs, when it beats email and phone, and a one-week setup plan for a small business.

Updated October 16, 2026

SMS consent and opt-in policy

The consent script and checkbox language FloPay uses before sending a payment link by text.

Reference

Payments for your industry

How the same platform is set up for specific businesses.

Home Services

Deposits, text to pay at the job, installment plans and QuickBooks sync for contractors.

Legal Practices

Retainers by link, ACH for large bills, installment plans and separate operating and trust deposit profiles.

Medical & Dental

Copays and balances by text, treatment plans on installments, card on file and reminders for practices.

Auto Repair

Deposits before parts, text to pay at pickup, installment plans and fleet ACH for repair shops.

Property Management

Rent on ACH autopay, fees by link, reminders, per-owner profiles and QuickBooks sync for property managers.

Insurance Agencies

Collect premiums, down payments and installments by text, card on file or ACH.

Travel Clubs & Membership Travel

Membership dues on autopay, renewal recovery, chargeback alerts and a portable card vault for travel clubs.

Direct Sales & MLM

Autoship subscriptions, enrollment checkout, renewal recovery and chargeback alerts for direct sales and MLM companies.

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