How to Choose a Payment Processor for a Medium-Risk E-commerce Business: Fees, Reserves, Payout Timing, and What to Look for in the Contract

Caio Moreira · 2026-10-07

Payments

Mdr, rolling reserve, payout timing

• MDR (Merchant Discount Rate): This is the fee the processor charges on each transaction. For medium-risk e-commerce businesses, fees can range from 2,5% to 6%. Compare the fees offered and check whether they’re fixed or variable.

• Rolling Reserve: Many platforms require a rolling reserve, which is a percentage of your sales that’s held for a period of time. Ideally, the reserve shouldn’t exceed 10% of sales. Ask what the percentage is and how long the reserve will be held.

• Payout Timing: Payout timing is how long it takes for your sales revenue to become available in your account. Generally, it can range from 7 to 30 days. Go with processors that offer shorter payout times, especially if you have tight cash flow.

Risk categories (nutra, dropshipping)

• Nutra: Businesses selling health and wellness products may be considered high risk, which can mean higher fees and larger reserves. Be prepared for MDR fees above 5% and rolling reserves of up to 20%.

• Dropshipping: While it’s not as risky as nutra, there are still risks involved, especially if you sell products from lesser-known brands. MDR fees are around 3% to 5%, with rolling reserves between 5% and 15%.

Signs they may freeze your account

• Monitoring your e-commerce performance metrics is crucial. Signs the processor may freeze your account include:
• A sudden increase in chargebacks (payment reversals).
• Sales way above average with no explanation.
• Products with a lot of complaints or negative feedback.
• Sudden changes in sales volume.

Always have 2 processors

• Diversification is key. Always have two payment processors integrated with your e-commerce store. That way, if one of them runs into problems, you’ll still have another option for accepting payments. Also, compare their performance regularly.

Questions to ask before signing

• Before signing with a processor, ask the following questions:
• What’s the MDR fee, and how does it apply to different transaction types?
• What are the terms of the rolling reserve?
• What’s the average payout time?
• How are chargebacks handled, and what fees are associated with them?
• Is there dedicated support to help resolve issues?

Following these guidelines will help you minimize risk and maximize your chances of success with your e-commerce business.

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