On most service businesses, the payment-processing fee is a bigger annual cost than the software subscription — and almost nobody optimizes it. A few changes can save thousands a year without raising a single price.
Know your real rate
Most FSM tools charge around 2.9% + $0.30 per card transaction. Some are lower: Service Fusion’s built-in processing is 2.59% with no fixed fee. That gap looks small until you annualize it.
The annual math
On $30,000/month of card volume, 2.9% + $0.30 runs roughly $10,400/year. At 2.59% with no fixed fee, it is about $9,300 — over $1,100 saved per year, which can exceed the entire software subscription.
Push large invoices to ACH
ACH (bank transfer) typically costs around 1%, sometimes capped, versus ~3% on cards. On a $5,000 commercial invoice, that is the difference between roughly $50 and $145. Tools like Jobber and Housecall Pro offer low-cost ACH — steer big tickets there and reserve cards for small jobs where the convenience is worth it.
Use card-on-file and autopay
Storing a card and charging automatically on completion (or on a recurring schedule) does not lower the rate, but it removes the days of float and chasing that cost you in collections. For recurring work, autopay through a customer portal nearly eliminates late payment.
Understand surcharging — and the rules
Passing the card fee to the customer (surcharging or a “cash discount”) is legal in much of the US but tightly regulated: there are caps, disclosure requirements, and some states and card-network rules restrict it. Done correctly it can move processing cost off your books; done sloppily it creates compliance and customer-trust problems. Check your state rules and your processor’s terms before enabling it.
Compare the all-in cost when you choose software
Because fees dwarf the subscription, the processing rate should be part of your software decision, not an afterthought. Our pricing pages list each tool’s card and ACH rates, and the best FSM for invoicing & payments ranks tools partly on processing cost.
Quick wins checklist
- Move invoices over ~$1,000 to ACH.
- Turn on card-on-file and autopay for recurring customers.
- Compare your current rate against 2.59% — switching processors may pay for itself.
- Investigate compliant surcharging if your margins are tight and your customers expect it.