Every time a client pays you by card, a slice of that money never reaches your account. It goes to the payment processor as a fee. On a single invoice it looks tiny. Across a year of jobs it can quietly cost you a long weekend's worth of income. The good news is you can reduce payment processing fees without raising prices, surcharging customers, or making your business look cheap. It comes down to understanding the math and choosing the right payment method for each invoice size.
This guide breaks down what processing fees actually are, shows the real cost on both big and small invoices, and explains exactly when paying the fee is worth it and when you should steer the payment somewhere cheaper.
What a payment processing fee actually is
A card processing fee almost always has two parts:
- A percentage of the transaction (typically somewhere in the 1.5% to 2.9% range, depending on the provider, the card type, and your country).
- A small fixed amount per transaction (often in the region of EUR 0.25 to EUR 0.35, again depending on the provider and region).
So a EUR 100 card payment might cost you roughly EUR 1.50 to EUR 3.20 once you add both parts together. The exact rate depends on your processor and is set by them, not by your invoicing app. Billr lets you connect Stripe for cards or PayPal, but the rates those companies charge are theirs. Your job is not to argue the rate down. It is to know it, and to decide which jobs are worth paying it on.
The key insight is that the two-part structure hits big and small invoices very differently. The percentage dominates on large invoices. The fixed amount bites hardest on small ones.
The real math: worked examples
A large invoice: the percentage dominates
Say you finished a full HVAC install and invoiced EUR 2,000. If your processor charges around 1.5% to 2.9% plus a fixed bit, the fee lands somewhere between roughly EUR 30 and EUR 58. The fixed amount barely registers here. It is the percentage doing almost all the damage.
That is real money. EUR 30 to EUR 58 is a tank of fuel, a box of fittings, or a chunk of your profit on the job. On invoices this size, the percentage is worth thinking hard about.
A small invoice: the fixed fee bites
Now say you did a quick callout and invoiced EUR 180. At a similar percentage rate the variable part is only around EUR 2.70 to EUR 5.20, but the fixed amount of, say, EUR 0.30 now represents a much bigger slice of a small total. On a EUR 20 minimum charge it would be even more pronounced. The smaller the invoice, the more that flat per-transaction fee stings as a percentage of the job.
This is the pattern to remember:
- Big invoices: watch the percentage. A fraction of a percent across thousands of euros adds up fast.
- Small invoices: watch the fixed fee. A flat charge eats a meaningful share of a tiny total.
When paying the fee is absolutely worth it
Before you try to dodge every fee, be honest about what the fee buys you. For most tradespeople, the answer is: it buys you cash, faster, with less effort.
- You get paid quicker. A card link gets paid the moment the client taps it on their phone. A bank transfer waits until they get round to logging in, which might be next week, or after three reminders.
- You chase less. Every unpaid invoice costs you time, mental energy, and sometimes an awkward phone call. If a 2% fee turns a 30-day wait into a same-day payment, that is a bargain.
- Fewer write-offs. The longer an invoice sits unpaid, the more likely it is to go bad. Friction kills payment. Removing friction protects your money.
Run the comparison in your head. On that EUR 2,000 install, a EUR 40 fee that gets you paid today instead of in five weeks is almost always the better deal. The cost of slow money, chasing, and the risk of non-payment usually dwarfs the processing fee. For more on speeding up payment, see our guide on invoice payment terms.
How to reduce fees without surcharging
So you understand the fee. Now here is how to genuinely lower what you hand over, without doing anything that annoys clients or looks petty.
1. Offer a fee-free method for large invoices
This is the single biggest lever. For your high-value jobs, where the percentage hurts most, make a free or near-free payment route obvious. Bank transfer and SEPA both avoid card percentages entirely.
In Billr you can show your bank details directly on the invoice and generate a SEPA / QR code the client scans to pay. On a EUR 2,000 install, nudging the client toward a bank transfer instead of card can save you that whole EUR 30 to EUR 58 in one move. You decide which methods to enable, so you can offer card for convenience and bank transfer as the no-fee option side by side. See how this works on the payments page.
2. Use card and PayPal where speed matters most
For smaller callouts and any client who is likely to drag their feet, the card link earns its fee. EUR 2 to EUR 5 to get a EUR 180 invoice paid on the spot, with zero chasing, is money well spent. The trick is to be deliberate: card for speed, bank transfer for size. You can show whichever methods you want on each invoice.
3. Match the method to the invoice size
Here is a simple rule of thumb you can adopt today:
- Small, urgent jobs: lead with the card link. The fixed fee is small relative to the convenience, and speed protects you.
- Large jobs: lead with bank transfer or QR, and offer card only as a backup. The percentage saved is worth the slightly slower payment, especially with a trusted repeat client.
- Mixed or unsure: show both, and let the client choose. Most will pick the path of least resistance, which is usually fine.
Wondering which card provider to enable in the first place? Our breakdown of Stripe vs PayPal for contractors covers the trade-offs.
The truth about surcharging clients
The obvious move seems to be: just add the fee onto the client's bill. Be careful. Surcharging, passing the card fee directly to the customer, is a legal and reputational minefield.
- It is restricted or banned in many places. In the EU and UK, surcharging consumers for most common debit and credit card payments is prohibited. Rules vary by country, card type, and whether the customer is a consumer or a business, so what is legal for one job may not be for another.
- It can violate your processor's terms even where local law allows it, with caps on how much you can pass on.
- It makes you look cheap. A EUR 4 "card surcharge" line on an invoice is the kind of thing clients remember, and not fondly. It signals you are squeezing them over small change.
For most tradespeople, surcharging is not worth the risk or the bad feeling. There is a far simpler, cleaner approach.
The quiet fix: build the average fee into your rates
Instead of itemising a surcharge, just bake the typical fee into your prices. If processing costs you roughly 2% on the share of invoices that get paid by card, nudge your hourly rate or your callout fee up by a small amount to cover it. The client sees one clean number. You quietly stay whole.
The math is gentle. If half your revenue comes in by card at around 2%, your blended cost is roughly 1% of total revenue. A small, sensible rate increase covers that without anyone blinking. This is exactly how every established business handles card fees: as a normal cost of doing business, absorbed into the price, never called out on the invoice. If you have not reviewed your numbers in a while, this is a good prompt to revisit your invoicing and pricing together.
A quick decision flow for every invoice
- Is the invoice large (say, over EUR 1,000)? Lead with bank transfer or SEPA / QR. The percentage saved is real money.
- Is it small or urgent? Lead with the card link. Speed and certainty beat a few euros of fee.
- Is the client a known slow payer? Card link, every time. The fee is cheap insurance against a long wait.
- Have you priced the fee in? If your rates already absorb an average card cost, you can offer card freely without flinching.
FAQ
What is a typical payment processing fee?
Most card processors charge a percentage of the transaction, often somewhere in the 1.5% to 2.9% range, plus a small fixed amount per transaction, often around EUR 0.25 to EUR 0.35. The exact figures are set by the processor and vary by country, card type, and provider. Your invoicing app does not set these rates.
Is it cheaper to take bank transfers than card payments?
Usually yes. Bank transfer and SEPA payments typically avoid the percentage-based card fee entirely, which makes them especially attractive on large invoices. The trade-off is they can be slower, since the client has to actively log in and send the money rather than tapping a link.
Can I charge my clients the card processing fee?
Often you cannot, at least not freely. Surcharging consumers is restricted or banned in much of the EU and UK and may breach your processor's terms even where it is allowed. The rules depend on your country and the card type. A cleaner approach is to build the average fee into your rates so it never appears as a separate line.
Does Billr charge me a fee to get paid?
The processing fees come from the payment provider you connect, such as Stripe or PayPal, not from your invoicing tool. Billr lets you choose which methods to offer on each invoice, including fee-free bank transfer and SEPA / QR, so you control how much you pay to get paid.
What is the easiest way to lower my fees overall?
Steer your largest invoices toward bank transfer or QR, where the percentage hurts most, and reserve card payments for smaller or urgent jobs where speed is worth the fee. Then quietly absorb the average card cost into your prices so you stay whole without surcharging anyone.
Key takeaways
- Processing fees have two parts: a percentage (often 1.5% to 2.9%) plus a small fixed amount per transaction.
- The percentage hurts most on big invoices; the fixed fee hurts most on small ones.
- Paying the fee is often worth it: faster payment and fewer chases usually beat the cost.
- For large invoices, offer fee-free bank transfer or SEPA / QR to skip the percentage entirely.
- Surcharging clients is legally risky and looks cheap; build the average fee into your rates instead.
- Match the payment method to the invoice size, and let the client pick when in doubt.
Billr puts every payment method on one invoice, so you can offer a card link for speed and bank details or a SEPA / QR code for the no-fee route, and let each job pay the way that costs you least. Track the hours, build the invoice, and choose the smartest way to get paid. See how getting paid works in Billr.