Mobile & In-Person Payments

Should I choose interchange-plus or flat-rate pricing?

Flat-rate pricing (like Square's 2.6% + 10¢) is simpler but often more expensive for businesses processing over $10K/month. Interchange-plus pricing passes through the actual card network fees plus a fixed markup — typically saving 0.3-0.5% on each transaction. Switch to interchange-plus once you're consistently processing $10K+ monthly.

How can I reduce my payment processing fees?

Key strategies: negotiate rates after reaching $50K+/month in volume, encourage debit card and ACH payments (lower interchange), implement address verification to qualify for lower rates, avoid keyed-in transactions when possible, and review your monthly statement for hidden fees like PCI non-compliance charges or batch processing fees.

How do Stripe, Square, and PayPal compare for small businesses?

Stripe excels for online-first businesses with developer resources — its API is best-in-class. Square is ideal for retail/in-person sales with its free POS hardware and simple setup. PayPal offers the widest buyer recognition but charges higher fees (3.49% + 49¢ for standard checkout). Choose based on where most of your sales happen.

Can I accept payments online without a website?

Yes. Payment links (Stripe, Square, PayPal) let you send a checkout URL via email or text. Invoice tools from most processors allow recurring billing. Social selling platforms like Instagram and Facebook Shops have built-in checkout. For the simplest setup, Square's payment links are free to create and charge standard processing fees.

Should my business accept ACH payments?

ACH costs 0.5-1% per transaction (often capped at $5-10), making it far cheaper than cards for large transactions. Settlement takes 3-5 business days vs. 1-2 for cards. It's ideal for B2B invoices, subscriptions, rent payments, and any recurring charges over $100. Stripe, Square, and most processors now support ACH alongside cards.

Why is my payment processor holding my funds?

Processors hold funds when they detect risk: sudden volume spikes, high-ticket transactions, new accounts with no processing history, or elevated chargeback rates. To minimize holds, gradually increase volume, maintain consistent processing patterns, keep chargeback rates below 0.5%, and proactively provide documentation when processing large or unusual transactions.

How do I accept international payments?

Most major processors (Stripe, PayPal, Adyen) support multi-currency checkout that converts automatically. Key considerations: cross-border fees add 1-2% per transaction, you'll need to handle VAT/GST for EU/AU customers, and some payment methods are region-specific (iDEAL in Netherlands, PIX in Brazil). Stripe supports 135+ currencies and 40+ local payment methods.

How does payment processing actually work?

When a customer swipes or taps their card, the transaction travels from the merchant's terminal to their acquiring bank, through the card network (Visa/Mastercard), to the customer's issuing bank for approval, then back. The whole process takes 1-3 seconds. Funds typically settle to your bank account within 1-2 business days.

What is interchange and who sets it?

Interchange is the fee paid to the customer's card-issuing bank on every transaction. Visa and Mastercard set interchange rates, which vary by card type, transaction type, and merchant category. Rewards cards and business cards carry higher interchange than basic debit. Interchange is the largest cost component of processing and typically ranges from 0.5% to 2.7%.

What is interchange-plus pricing?

Interchange-plus passes the exact interchange rate through to you, plus a fixed markup from your processor (e.g., interchange + 0.3% + $0.10). This is the most transparent pricing model because you see exactly what Visa/Mastercard charges versus what your processor keeps. It's usually best for businesses processing over $10,000 per month.

What is flat-rate pricing for payment processing?

Flat-rate pricing charges one fixed percentage on every transaction regardless of card type — Stripe and Square use this model. It's simple and predictable but can be more expensive than interchange-plus for high-volume businesses. The simplicity is worth it for small businesses that prioritize ease over optimizing every basis point.

What is tiered pricing and should I avoid it?

Tiered pricing sorts transactions into "qualified," "mid-qualified," and "non-qualified" buckets with different rates. The processor decides which tier each transaction falls into, often pushing rewards cards into the most expensive tier. Most payment experts recommend avoiding tiered pricing because it lacks transparency and typically costs more than interchange-plus.

What are assessment fees in payment processing?

Assessment fees are charged by the card networks (Visa, Mastercard, Amex, Discover) directly to processors, who pass them to merchants. They're small — typically 0.13% to 0.15% — but unavoidable on every transaction. Unlike interchange, assessment fees are the same regardless of your processor and are included in flat-rate pricing but itemized on interchange-plus statements.

Is Square good for retail businesses?

Square for Retail includes inventory tracking with barcode support, purchase orders, vendor management, and customer loyalty — a solid all-in-one for brick-and-mortar retail. The free tier handles basic needs; the $60/month Plus plan adds advanced inventory management and cost-of-goods tracking essential for multi-SKU retailers.

Square vs Stripe: which is better for my business?

Square is designed for in-person businesses — free hardware, a complete POS app, and no monthly fees. Stripe is built for online and developer-driven businesses, with powerful APIs, subscription billing, and global payment support. If you primarily sell in person, Square wins on simplicity. If you're building an e-commerce site or SaaS, Stripe is the right platform.

Stripe vs Square for SaaS businesses?

Stripe is the clear choice for SaaS. It has native subscription billing, usage-based pricing, trial periods, proration, and a customer portal for self-service plan changes. Square has basic recurring payments but lacks the billing engine sophistication SaaS products need. Stripe also handles B2B invoicing and ACH bank debit natively.

What is a PayPal business account?

A PayPal Business account lets you accept payments via PayPal, Venmo, credit cards, and debit cards under a business name. It includes invoicing, a virtual terminal for phone orders, and integration with major e-commerce platforms. Unlike personal accounts, business accounts support multiple users, custom permissions, and detailed business analytics.

How much does PayPal charge businesses?

PayPal charges 3.49% + $0.49 for standard checkout and 2.99% + $0.49 for PayPal/Venmo button transactions. In-person PayPal Zettle transactions cost 2.29% + $0.09. There are no monthly fees for standard accounts. PayPal adds value when customers prefer paying with their PayPal balance, especially internationally and for older demographics.

What does a small business need to do for PCI compliance?

Most small businesses qualify for the simplest path by never touching raw card data — using a hosted payment page or processor-managed terminals. This limits you to SAQ A (22 questions) or SAQ B (41 questions), plus an annual self-assessment and quarterly vulnerability scan. Using Stripe or Square's hosted checkout handles the majority of compliance requirements for you.

How do I accept international payments?

Use a processor with global currency support like Stripe, PayPal, or Adyen. Enable multi-currency checkout so customers see prices in their local currency. Consider VAT/GST collection requirements for digital goods, local payment method preferences (iDEAL in Netherlands, Boleto in Brazil), and currency conversion fees that reduce net revenue on cross-border sales.

What is the best payment processor for international sales?

Stripe leads for international e-commerce with support for 135+ currencies and 45+ countries. Adyen is preferred by larger enterprises processing in multiple regions. For Asia-Pacific markets, consider processors with native Alipay and WeChat Pay support. PayPal adds trust in markets where consumers are reluctant to enter card details with unfamiliar merchants.

What is ACH payment processing?

ACH (Automated Clearing House) is the US electronic network for direct bank-to-bank transfers — the same network used for direct deposit and bill pay. For businesses, ACH lets you debit customer bank accounts directly at significantly lower cost than card processing (typically $0.25-$1.50 flat vs 2-3% for cards), though it takes 1-3 business days to settle.

What are subscription billing platforms?

Subscription billing platforms (Stripe Billing, Recurly, Chargebee, Zuora) manage recurring charges, plan upgrades and downgrades, proration, and customer self-service portals. They integrate with your processor to retry failed payments, send dunning emails, and manage revenue recognition. For SaaS businesses, a dedicated billing platform reduces significant engineering complexity.

What is dunning management?

Dunning management is the automated process of recovering failed subscription payments through smart retries and customer communications. A good dunning sequence retries the card at calculated intervals (e.g., days 3, 7, 14), sends email reminders to update payment info, and escalates to service suspension only as a last resort. Effective dunning recovers 20-40% of failed payments.

What does a payment processing statement show?

Your monthly statement shows total volume, transaction count, effective rate, interchange fees by card type, assessment fees, processor markup, monthly fees, and any chargebacks or adjustments. Reviewing statements helps you identify overcharges, determine whether interchange-plus would save money, and monitor whether your chargeback ratio is trending upward.

What is a rolling reserve?

A rolling reserve is a percentage of your processing volume (typically 5-10%) held back by the processor for a set period (usually 6 months) as protection against chargebacks and fraud. Common for new businesses and high-risk merchants. After the reserve period, held funds release on a rolling basis as transactions age past the chargeback window.

What is tokenization in payment processing?

Tokenization replaces sensitive card data with a random token useless to hackers. When a customer saves their card for future purchases, the processor stores the real card data and returns a token. You store only the token — so a breach on your systems exposes nothing valuable. Tokenization is now the industry standard and a core PCI compliance mechanism.

What is a virtual terminal?

A virtual terminal is a browser-based interface where you manually key in customer card details — useful for phone orders, mail orders, and in-person sales without hardware. Most processors include one at no extra cost. Virtual terminal transactions are card-not-present and carry higher rates (typically +0.5-1%) than swiped transactions due to elevated fraud risk.

What are the best payment processors for small businesses in 2025?

Square is best for in-person retail and restaurants with no monthly fees. Stripe is best for online businesses and developers. PayPal adds value when your customers prefer PayPal checkout. Helcim offers interchange-plus pricing with no monthly fee, making it cost-effective for businesses processing $5,000+/month. The best choice depends on your sales channel, volume, and technical needs.

What is Level 2 and Level 3 payment processing data?

Level 2 data adds purchase order numbers and tax amounts to B2B transactions. Level 3 adds full line-item details: product codes, quantities, and unit prices. Submitting Level 2/3 data on corporate card transactions can reduce interchange by 0.5-1.5%, since card issuers provide better expense reporting to cardholders. This saves thousands monthly for businesses with high B2B card volume.

How do I switch payment processors without disrupting my business?

Plan the switch carefully: migrate saved customer payment tokens to your new processor first, run both processors in parallel during transition, update your checkout integration, then cut over fully. Stripe and Braintree offer migration tools to transfer vaulted cards without requiring customers to re-enter details. Allow 4-6 weeks for a smooth migration to avoid revenue disruption.