Short answer: to my knowledge, Polymarket doesn't run an official, ongoing referral program where a user gets paid a commission for inviting others. This is general/background knowledge, not a live-verified fact, so treat it as such.
A few things worth knowing that are adjacent:
- Prediction market, not an exchange with referral economics. Polymarket is a Polygon-based prediction market where you buy/sell outcome shares. That model doesn't have the "invite a friend, earn a trading-fee split" structure that CEXs commonly use.
- It's had promotional reward schemes over time. They've run occasional campaign-style bonuses (e.g. points/rewards tied to trading activity or to US-election-season market volume), but those are time-limited promos, not a standing referral program you can rely on.
- The reliable way to get the current answer is their own site/docs or the app's invite/share section — if a referral/rewards option exists, it would surface there. I can't confirm the latest status for you from data I have access to here.
If you're weighing it against actual exchanges that do have referral programs, or you want me to pull up current data on prediction-market volume or on any exchange you're comparing, I can do that. Just let me know.