This post is general guidance for rental operators, not legal or financial advice. Payment surcharging laws vary by state and change frequently, and card-network rules apply on top of state law. Confirm the current rules for your state with an attorney or your payment processor before changing how you charge.
Every time a renter pays with a card, a slice of that payment goes to the processor before it ever reaches you, usually around 3%. On a $200 booking that's $6, and across a year's worth of bookings, it's a number worth paying attention to. Left unmanaged, processing fees quietly eat into a margin you already worked hard to protect.
The obvious fix is to pass the fee to the customer. But do it wrong, with a surprise 3% tacked on at checkout, and you've traded a small fee for a bigger problem: a renter who feels nickel-and-dimed, abandons the booking, or books but resents it. Worse, adding a card fee is legally restricted in some states, so the wrong approach isn't just bad for conversion, it can put you out of compliance.
There's a better way to handle this, and it starts with understanding your options. This post covers how to price so processing fees don't erode your margin, without the surprise charge that scares customers off, and what the law actually allows.
Understand What the Fee Actually Costs You
A small percentage adds up to real money
Payment processing fees are a percentage of each transaction, commonly around 3%, though the exact rate depends on your processor and your plan. Every card payment gives up that slice before the money reaches you.
For a rental business, that adds up faster than it does for a coffee shop, because the tickets aren't tiny. A multi-day booking or an equipment rental runs into the hundreds, so 3% of a $400 booking is $12, every single time. Multiply that across a year of bookings and the fee is a meaningful line on your costs, not a rounding error. And it comes straight off your margin, because unlike a cost you can shop around, the processing fee lands on every card sale, and card is how most renters pay.
The first step isn't deciding who pays the fee. It's knowing exactly what the fee is. You can't price around a number you don't know, and an operator who knows their processing rate to the decimal can build it into pricing precisely, while one who's vague about it is guessing. A known, fixed processing rate, like the one that comes with HQ Rent's built-in payments, is something you can price around exactly.
Your Three Options
Absorb it, build it in, or pass it along
There are really only three things you can do with a processing fee, and the rest of this post builds on them.
Absorb it. You eat the fee as a cost of doing business. This is the simplest option and the cleanest customer experience, because it's one price with no friction. The downside is pure margin, since every card sale costs you the fee. It's fine at low volume or where competition is thin, and it gets expensive as you scale.
Build it into the base price. You set your rate high enough that the fee is already covered inside it. The customer sees one honest price, your margin is protected, and nobody's surprised because there's nothing added at checkout. This is the quiet standard, and for most operators it's the best answer.
Pass it along. You recover the fee directly, either by adding it for card payers (a surcharge) or by discounting for cash payers (a cash discount). This recovers the cost most precisely, but it comes with the most rules and the most potential to scare customers off.
The right choice depends on your margin, your market, and your appetite for the rules that come with passing the fee along. The next sections take them in turn, starting with the one that avoids scaring anyone.
The Cleanest Answer: Build It Into Your Rate
One honest price, margin protected, nobody surprised
For most operators, building the fee into the base rate is the right move, and it's worth understanding why it works so well.
The customer sees one price. There's no surprise, no line-item fee, no "why am I being charged extra" at the final step. The price is the price, and it happens to cover your costs, including processing. Your margin is protected, because the fee is baked in and every sale covers it without you thinking about it. And it's the simplest approach to run, because there's no signage, no disclosure rules, no state-law surcharge restrictions, and no card-network caps to worry about. You're just pricing your product to cover your costs, which is exactly what a rate is supposed to do.
That makes this a rate-setting move at heart. Processing is one of the costs your rate has to recover, right alongside maintenance, insurance, and depreciation. Build all of them in and your rate is honest and complete. Learn more about how to set equipment rental rates, which covers treating costs this way.
One caveat: if you're currently absorbing the fee and you switch to building it in, that's effectively a small price increase, so communicate it to your existing customers like one. Learn more about how to communicate price increases to existing customers so the change doesn't cause friction.
The Surprise Fee Is What Scares Customers
It's not the fee — it's the surprise
Here's the thing worth being clear-eyed about: what drives customers off isn't paying for processing. They pay it invisibly, folded into every price they encounter all day long. What drives them off is being surprised by a fee at checkout, after they've already decided to book, because a fee that appears at the last second reads as a penalty.
That surprise does real damage. It triggers abandonment, because a fee that shows up at the final step is a classic reason a renter who was ready to book suddenly reconsiders. Learn more about why customers abandon rental bookings and how to fix it. It breeds resentment, because even the renter who completes the booking remembers the tacked-on fee and it colors the whole experience. And it erodes trust, because a price that climbs at checkout makes the renter wonder what else about your business isn't straight.
So if you do decide to pass the fee along, the entire game is making it not a surprise. Disclosed upfront, shown well before checkout, never sprung at the final step. A fee the customer knew about going in is a choice they made. A fee that appears at the end is an ambush. Transparency is the whole difference, and it's the same reason a clear, upfront booking process builds trust. Learn more about why your booking confirmation process matters more than your pricing.
If You Pass the Fee Along: Surcharge vs. Cash Discount
Same result, very different rules
If you're set on recovering the fee directly rather than building it in, there are two ways to structure it, and the legal difference between them is bigger than it looks.
A surcharge adds a fee for paying by card, so the customer pays more than the posted price. A cash discount lowers the price for paying by cash or debit, so the customer pays less than the posted price. The net effect is the same, card payers pay more than cash payers, but the law treats the two very differently, and that difference matters.
The cash discount is the simpler, safer path. Cash discounts are legal in all 50 states and are less tightly regulated than surcharges, so if you want to steer renters toward lower-cost payment methods, the cash discount is the clean way to do it. The one rule that makes it a discount and not a surcharge: you have to post the card price as your standard and offer the discount off it. If you post the low price and add a fee for cards, you've legally made it a surcharge, whatever you call it.
Surcharging is legal in most states but restricted in some, and the picture keeps shifting. A handful of states ban credit card surcharges outright. Connecticut and Massachusetts show up consistently on that list, and depending on the source others may too. California has its own "honest pricing" law that requires advertised prices to include mandatory fees, which effectively restricts surcharging rather than banning it outright. Texas has a ban that federal courts have questioned, which leaves its status contested. Even where surcharging is allowed, more rules stack on top: you generally can't surcharge debit cards at all, the card networks cap surcharges (commonly 3% for Visa), and you have to disclose clearly, with signage at the point of sale and a separate line on the receipt. That stack of rules is exactly why a cash discount is simpler, since it reaches a similar result while sidestepping most of them.
Because the surcharge landscape genuinely varies by state and changes often, and because card-network rules apply on top of whatever your state says, confirm the current rules for your state with an attorney or your payment processor before you add any card fee. This isn't legal advice, it's a map pointing you toward the right questions. This is the same pass-through-cost territory as sales tax, and it deserves the same care. Learn more about how to handle sales tax on rental transactions.
Know Your Real Rate So You Can Price Precisely
Whatever you choose, it only works if you know your number
Every one of these strategies, absorbing the fee, building it in, discounting, or surcharging, depends on knowing your actual processing rate. Vague knowledge produces imprecise pricing, and imprecise pricing is how the fee quietly eats your margin anyway.
So know your exact processing rate, down to the decimal, for your processor and your plan. That's the number you either build into your rate or set out to recover. And a fixed, known rate is easy to price around, because when your processing cost is a predictable percentage, building it into your rate is simple arithmetic. HQ Rent's built-in payment processing means the rate is a known figure, so you're not guessing at what to price around. Whether you run trailer rental software or an equipment rental solution, a clean payment system with a rate you actually know is what lets you price accurately.
You can't price around a fee you can't pin down. Know the number, choose your approach, and the fee stops being a mystery drain and becomes a line item you've accounted for.
Account for the Fee, Don't Spring It
Payment processing fees are a real cost, but they don't have to cost you either your margin or your customers. The trap is the surprise surcharge at checkout, which recovers a few percent and costs you the booking.
For most operators, the cleanest answer is to build the fee into your rate: one honest price, margin protected, nobody surprised. If you'd rather pass it along, a cash discount is the simpler, universally legal structure, while surcharging works in most states but comes with disclosure rules, network caps, and state restrictions worth confirming before you start. Whichever you choose, know your exact processing rate so you can price around it precisely.
Handle it that way and the fee becomes what it should be, a cost you've accounted for, not a surprise your customer resents.
Ready to price with a clear picture of your real costs, processing included? Book a demo to see how HQ Rent's built-in payments and pricing tools help you account for every cost cleanly.