What Are B2B Merchant Services?
B2B merchant services are payment processing solutions designed for businesses that sell to other businesses. B2B transactions have fundamentally different characteristics than consumer transactions — larger average tickets ($500-$50,000+), purchasing cards and corporate cards, invoice-based billing cycles of net-30 to net-90, and multiple payment methods including ACH, wire, check, and card. These differences require specialized processing that standard consumer-focused merchant services don't provide.
Unison Payment Solutions provides B2B merchant services including Level 2/3 processing, ACH payment processing, virtual terminals, and invoicing tools optimized for business-to-business payment flows.
The B2B Payment Processing Problem
Most B2B companies are overpaying on processing because their provider treats business card transactions the same as consumer transactions. Here's the issue:
When a corporate purchasing card is used for a $5,000 B2B transaction and your processor submits only basic Level 1 data, Visa and Mastercard classify it at their highest interchange tier — typically 2.65-3.25%. That's $132-$162 in processing fees on a single transaction.
If that same transaction includes Level 2/3 data (PO numbers, tax amounts, line-item detail), the interchange rate drops to the commercial card tier — typically 1.85-2.10%. That's $92-$105. You save $40-$57 on a single $5,000 transaction.
Scale that across a year of B2B sales and the savings are substantial.
Level 2 and Level 3 Processing: The Biggest B2B Savings
B2B transactions processed with Level 2 and Level 3 data qualify for significantly lower interchange rates from Visa and Mastercard. The savings are typically 0.5-1.5% per transaction compared to standard processing.
Level 2 data includes:
- Customer code / PO number
- Tax amount and tax indicator
- Merchant postal code
Level 3 data adds:
- Line-item detail (product codes, descriptions, quantities, unit costs)
- Ship-to/ship-from information
- Discount amounts
- Freight/duty amounts
- Item commodity codes
Savings by B2B Transaction Size
| Transaction Size | Standard Rate (Level 1) | Level 2/3 Rate | Savings Per Transaction |
|---|---|---|---|
| $1,000 | $26.50-32.50 | $18.50-21.00 | $8-11.50 |
| $5,000 | $132.50-162.50 | $92.50-105.00 | $40-57.50 |
| $10,000 | $265-325 | $185-210 | $80-115 |
| $25,000 | $662-812 | $462-525 | $200-287 |
For B2B companies processing $500,000+/year on corporate cards, Level 2/3 processing saves $10,000-$50,000+ annually.
Our PayTrace gateway automatically captures and submits Level 2/3 data, ensuring you qualify for the lowest available interchange rates without manual data entry. The gateway integrates with most accounting and ERP systems to pull line-item data automatically.
ACH for B2B Payments
ACH payment processing is the most cost-effective payment method for B2B transactions with high average tickets:
| Payment Method | Cost on $10,000 Transaction | Settlement Time |
|---|---|---|
| Credit card (standard) | $265-325 | 1-2 business days |
| Credit card (Level 2/3) | $185-210 | 1-2 business days |
| ACH | $0.25-1.50 | 2-3 business days |
| Same-day ACH | $1.50-5.00 | Same business day |
| Wire transfer | $15-30 | Same day |
For B2B companies with average invoices above $2,000, ACH reduces payment processing costs by 90%+ compared to credit card processing. The trade-off is settlement time — standard ACH takes 2-3 business days vs next-day for card transactions.
When to use ACH vs cards:
- ACH: Recurring invoices, retainer payments, large purchase orders, net-30 payments
- Cards: One-time purchases, rush orders, clients who prefer card rewards, international transactions
- Same-day ACH: Time-sensitive payments that need to clear within hours
Virtual Terminal for B2B
B2B transactions often happen via phone, email, or manual invoice — not through a website checkout. A virtual terminal lets you process payments from any browser:
- Key in card numbers for phone orders
- Send payment links via email for invoice payments
- Process ACH debits with bank account information
- Store customer payment methods on file for recurring billing
- Capture Level 2/3 data for interchange optimization on every keyed transaction
- Process card-not-present transactions securely with tokenization
No hardware required. Process B2B payments from your desk, your home office, or anywhere with a browser.
B2B Invoicing and Payment Links
For B2B companies that invoice clients, electronic invoicing with embedded payment links dramatically accelerates collections:
- Create professional invoices with a "Pay Now" button
- Clients pay online via card or ACH by clicking the link — no phone calls, no mailing checks
- Automatic payment reminders at 7, 14, and 30 days reduce late payments
- Track invoice status, partial payments, and full payment history
- Level 2/3 data captured automatically on invoice payments
- Recurring invoices for retainer clients on a set schedule
Companies that switch from paper/email invoicing to payment-link invoicing typically see average days-to-payment drop by 15-20 days.
B2B Payment Processing by Industry
| Industry | Best Payment Mix | Key Features Needed |
|---|---|---|
| Wholesale / Distribution | ACH (70%), Card (30%) | Level 3 for line-item detail, bulk invoicing |
| Professional Services | Card (50%), ACH (50%) | Recurring billing, retainer management |
| Manufacturing | ACH (80%), Card (20%) | Purchase order matching, large transaction support |
| IT / SaaS | Card (70%), ACH (30%) | Subscription billing, usage-based invoicing |
| Construction / Trades | ACH (60%), Card (40%) | Progress billing, milestone payments |
| Medical Supplies | Card (60%), ACH (40%) | Level 3 data, compliance documentation |
Choosing the Right B2B Payment Processing Company
When evaluating B2B payment processing companies, look for these six capabilities:
1. Level 2/3 processing — essential for reducing interchange costs on corporate and purchasing cards 2. ACH capability — critical for large B2B transactions where card fees are prohibitively expensive 3. Virtual terminal — for phone, email, and manual order processing 4. Interchange-plus pricing — transparent pricing that passes through the Level 2/3 savings to you (flat-rate processors keep the savings themselves) 5. Invoicing tools — for billing clients and collecting payments electronically with payment links 6. No monthly fees or contracts — flexibility as your B2B processing needs evolve
Red flags to avoid:
- Flat-rate pricing on B2B transactions (you lose all Level 2/3 savings)
- No ACH option (you're stuck paying card rates on large invoices)
- Long-term contracts with early termination fees
- No virtual terminal or keyed transaction capability
Unison Payment Solutions provides all six capabilities with no contracts and interchange-plus pricing. Contact us for a B2B payment processing consultation. Call (925) 290-6003.
Related resources:
- ACH Payment Processing — bank transfer processing details
- PayTrace Payment Gateway — Level 2/3 processing gateway
- Invoicing & Payment Links — B2B invoicing tools
- Interchange-Plus Pricing Guide — understanding your rate structure
- Virtual Terminal Guide — accept payments without hardware