Polymarket Copy Bot Fees Compared (2026): What You Really Pay
June 16, 2026 · 5 min read
Polymarket copy bot fees compared in 2026 — subscription vs percentage fees, hidden slippage and taker costs, and how to calculate the real cost of copying.
The sticker price of a Polymarket copy bot is rarely the real cost. Here's how the fee models compare in 2026 and the costs that quietly eat your returns.
The fee models
- Percentage fee: a cut of volume or profit (e.g. ~0.5–1%). Scales with your size.
- Subscription: a flat monthly price (e.g. $299–$499 on premium platforms). Predictable but steep for small bankrolls.
- Free + builder fee: free to use, with a small protocol-level builder fee on orders.
The costs nobody advertises
- Slippage: a slow bot fills at a worse price — often costing more than the fee itself.
- Taker fees: crossing the spread for a sure fill has a cost; a bot that always takes pays it every time.
- Missed fills: latency that makes you miss trades is a hidden cost of 'cheap' bots.
How to calculate the real cost
Add the headline fee + average slippage per trade + taker costs, then weigh it against fill quality. A slightly higher fee on a fast, transparent bot often beats a 'cheaper' slow one.
Where PolyMaster lands
PolyMaster is free to start, shows fees and slippage per trade so there's nothing hidden, and optimizes execution to keep slippage low — the cost you can actually verify.