How to Set Your Marketplace Commission Rate

Setting a commission rate is one of the first real business decisions a marketplace operator has to make — and one of the easiest to get wrong in either direction. Set it too high and vendors compare it unfavorably to the aggregators already taking a cut of their sales. Set it too low and the marketplace can’t sustain itself once it’s actually running.

Start from what vendors are already paying

Most independent vendors already have a reference point: the ~30% commission charged by major delivery aggregators. You don’t need to match that number, but you should know it, because it’s the number vendors will mentally compare you to. A meaningfully lower rate is one of the clearest pitches you can make.

Know your actual costs

Before picking a percentage, know what the marketplace actually costs to run — payment processing fees, delivery/fulfillment costs if applicable, and your own time. A commission rate that doesn’t cover the real cost of running transactions isn’t a competitive advantage, it’s a business that loses money on every order.

Consider a lower rate to start

Many marketplaces launch with an introductory commission — lower than their long-term target — specifically to make the first cohort of vendors easy yeses. It’s easier to raise a rate later with vendors who’ve already seen real orders come through than to convince a skeptical vendor to join at your eventual target rate with no track record yet.

Different categories can justify different rates

A high-margin category (say, specialty retail) can typically absorb a higher commission than a low-margin one (say, grocery). If your marketplace spans multiple categories, a flat rate across all of them may underprice some vendors’ willingness to pay and overprice others’ actual margins.

Be transparent about it

Vendors are far more tolerant of a commission rate — even a meaningful one — when it’s clear, consistent, and explained, than when it feels arbitrary or negotiated case-by-case. A published, predictable rate builds more trust than a “let’s discuss what works for you” approach, even if the number ends up similar.

You can change it — carefully

A commission rate isn’t permanent, but changing it after vendors have built their pricing around it is a trust event, not a routine update. If you do raise it, give advance notice and be ready to explain why — ideally tied to something vendors can see the value of, like added reach, better tools, or improved support.

The right number isn’t the highest one you can get away with — it’s the one that’s honest about your costs, competitive against the aggregators vendors are already paying, and stable enough that vendors can build a real business on top of it.