Visual breakdown of MDR into interchange, scheme fee and margin components

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What is MDR and why does it matter so much for your CBD store?

12 August 2025 · by WeedsPayments Team

If you run or are setting up a CBD e-commerce, sooner or later you will come across the acronym MDR. It is a fundamental concept that determines how much money you keep on every sale. And in the cannabis sector, understanding MDR properly can mean thousands of euros of difference per year.

4.5% typical MDR in the CBD sector in Europe€0.30 fixed fee per transaction at WeedsPayments~€135 in fees for every €3,000 sold

What does MDR mean?

MDR stands for Merchant Discount Rate. It is the percentage that the acquiring bank and the payment processor keep from every transaction processed with a card.

In plain terms: if you sell a product for €100 and your MDR is 4.5%, you receive €95.50 in your account. The remaining €4.50 is split between the card-issuing bank, the network (Visa/Mastercard) and the processor.

“MDR is not an avoidable cost — it’s the price of being able to accept cards. The key is understanding and negotiating it well.”

Why is MDR higher in CBD than in other sectors?

A clothing e-commerce can pay an MDR of 1.5% – 2%. A cannabis e-commerce typically pays between 3.5% and 5.5%. The difference is the risk perceived by the acquiring bank:

  • Historically higher chargeback rates in the sector.
  • Regulatory uncertainty in some European markets.
  • Fewer banks willing to work with this type of merchant.
  • Additional compliance cost the bank has to absorb.

A high MDR in CBD is not abuse — it reflects the real cost the bank assumes when processing payments in a higher-risk sector. As the sector matures and chargeback ratios drop, MDRs will tend to come down. It is already happening.

Real MDR breakdown: where does each euro go?

ComponentTypical percentage
Interchange fee (issuing bank)1.5% – 2.0%
Scheme fee (Visa / Mastercard)0.2% – 0.4%
Acquirer / processor margin1.5% – 2.5%
Fixed fee per transaction€0.15 – €0.35
TOTAL (final merchant MDR)3.5% – 5.5% + fixed fee

How to calculate the real impact on your business

The formula is simple: MDR (%) × monthly volume + fixed fee × number of transactions.

Practical example with WeedsPayments (MDR 4.5% + €0.30/transaction):

ScenarioCalculation and result
Monthly volume: €5,000 / 100 transactions€225 (4.5%) + €30 (€0.30×100) = €255/month in fees
Monthly volume: €20,000 / 350 transactions€900 (4.5%) + €105 = €1,005/month in fees
Monthly volume: €60,000 / 900 transactions€2,700 (4.5%) + €270 = €2,970/month in fees

Tip: always include MDR in your cost structure when calculating margins. An MDR of 4.5% on a product with a 30% margin reduces that margin to 25.5%. It is not an invisible expense — it is part of the cost of selling online.

Can MDR be negotiated?

Yes, but it depends on volume. Most CBD-specialised processors have fixed rates for small merchants (< €20,000/month) and are willing to negotiate above certain volume thresholds.

  • Below €20,000/month: standard rate, little room to negotiate.
  • €20,000 – €100,000/month: possibility of negotiating a reduction of 0.3 – 0.5 points.
  • Above €100,000/month: real negotiation with bespoke conditions.

At WeedsPayments we work with a standard MDR of 4.5% + €0.30, with a review of conditions after 3 months of operation for merchants with a good track record and growing volume.

“The lowest MDR isn’t always the best deal. A stable processor at 4.5% is worth far more than an unstable one at 3%.”

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