Professional Services

Invoices, retainers, and trust accounts — priced right.

Law firms, agencies, consultants, accountants — professional services take payment in a small number of large tickets, often on corporate or commercial cards. Per-transaction cents don't matter much. Interchange category, card mix, and compliance do.

Why owners come to us

What professional services owners keep flagging.

01

Trust accounting is worth double-checking

How processing interacts with IOLTA requirements is worth confirming with your own compliance advisor — we can flag what we see, but it isn't legal guidance.

02

Large tickets amplify small percentage differences

A 0.3% markup difference matters far more in dollar terms on a $5,000 invoice than a $50 one.

03

ACH is underused

For recurring or large invoices, ACH is frequently cheaper than card processing and rarely offered by default — we check if it fits your client base.

Review focus

What our review measures for professional services.

  • Trust account considerations
    For law firms specifically, IOLTA and trust accounting rules can affect how processing fees are handled around client trust funds — a consideration worth verifying with your bar association or accountant.
  • Commercial and corporate card rates
    B2B and corporate cards often carry different (frequently higher) interchange than consumer cards; we confirm you're not overpaying by treating them the same.
  • Invoicing and ACH options
    For large tickets, ACH or invoicing can be meaningfully cheaper than card processing; we review whether that's offered and used where it makes sense.
  • Retainer and recurring billing
    For firms with ongoing retainers, how recurring charges are processed and reconciled.
  • Card-not-present handling
    Most professional-services payments happen by phone, email link, or online — reviewed for both cost and fraud exposure.
POS options we compare

Common professional services stacks.

LawPay (legal)QuickBooks PaymentsFreshBooksStandalone processor + invoicingStripe (agencies)
How we typically recommend
  • LawPay for law firms
  • QuickBooks Payments if already on QB
  • Standalone processor + invoicing platform for agencies
Where we look for opportunity

What your professional services review will actually tell you.

Every review is built from your actual merchant data, not an industry average. That means looking at your real card mix, average ticket size, monthly volume, current pricing structure, POS and workflow fit, and contract terms — then telling you plainly whether staying, optimizing, or comparing alternatives makes sense.

  • Actual card mix
  • Average ticket size
  • Monthly volume
  • Current pricing structure
  • POS & workflow fit
  • Contract terms
How we evaluate

Every Trailhead Review™ looks at the same five areas.

Technology helps us pull and organize the numbers, but a person reviews every recommendation before it reaches you. Staying with your current setup is treated as a legitimate outcome, not a failure to find something to sell — sometimes the smartest move is staying put.

  • Costs & Fees
  • Contract & Terms
  • POS & Equipment
  • Software & Integrations
  • Support & Growth Readiness

Content reviewed and maintained by Trailhead Payments. Have questions about how we evaluate your setup? Start a free Trailhead Review™.

Related resources

Go deeper on professional services payments.

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