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Polymarket tariffs: what traders need to know

Polymarket tariffs refers to the variable taker fees and any per-trade costs that affect execution on Polymarket. Traders searching for 'polymarket tariffs' want to know how fees, tick size, and latency change P&L when running arbitrage strategies. Polymarket taker fees currently range up to 1.8% by category, makers pay zero, and gas is sponsored via the Relayer. If you’re assessing automated arbitrage, factor fees into edge calculations and execution speed.

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How Polymarket fees work

Polymarket charges variable taker fees by market category; makers pay zero. Categories like Geopolitics are fee-free while other categories can charge up to 1.8% for takers. Because fees are taken on execution, they directly shrink the gross spread you can capture with intra-market arbitrage.

Polymarket also sponsors gas via its Relayer, so you do not pay transaction gas. However, CTF split/merge/redeem and order placement still face execution and settlement timing considerations that affect realised returns.

Tick size, spread, and tariff impact

Tick size is usually $0.01 and tightens to $0.001 near extreme prices, which changes the minimum actionable spread. The spread plus taker tariffs determine whether a binary or multi-outcome arbitrage is profitable after fees. For intra-market arb, calculate edge as $1.00 minus sum of best asks, then subtract taker fees and expected slippage.

Remember that resolution, partial fills, and UMA disputes are non-fee risks that can turn a seemingly profitable trade into a loss. Never treat a raw spread as final profit without accounting for tariffs and settlement timing.

Latency and execution — why tariffs aren’t the whole story

Fees matter, but latency determines whether you actually capture an edge before prices move. PolyArb runs at ~40ms latency versus ~800ms for free bots; that lower latency reduces slippage and increases the chance that a quoted spread remains executable. PolyArb is non-custodial, live today, and includes Telegram and Discord alerts for fills.

PolyArb subscriptions are $99/month and include a $7.62 minimum guaranteed edge per trade metric built into its strategy reporting. That guarantee assumes you factor fees and acknowledged risks; it is not a promise that every trade will be profitable given market and resolution risks.

Practical checklist for traders

Before trading, verify the market category fee, current tick size, and best-ask aggregation for all outcomes. Run a backtest that deducts taker fees and realistic slippage, and include time-to-settlement and UMA dispute scenarios in your risk model.

If you plan to rely on automation, prioritise low-latency execution, proper order sizing for liquidity, and monitoring. Tools like PolyArb combine execution speed, alerts, and built-in edge reporting to simplify that process, but they do not remove smart-contract, resolution, or regulatory risk.

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Subscribe to PolyArb for $99/month for low-latency execution, live alerts, and reporting that factors in tariffs and slippage. Learn how the $7.62 minimum guaranteed edge appears in your trade logs.

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FAQ

What exactly do 'Polymarket tariffs' refer to?
They mainly refer to variable taker fees by market category on Polymarket. Maker fees are zero. Tariffs affect the net profit of trades because taker fees are charged at execution and reduce the gross spread available to arbitrageurs.
Does Polymarket charge gas fees?
Polymarket sponsors gas via its Relayer (a Gas Station Network model). End users do not pay gas for wallet deployment, approvals, CTF operations, or order placement, but execution timing and settlement still matter for returns.
How should I include tariffs when calculating arbitrage edge?
Compute raw edge as $1.00 minus the sum of best asks, then subtract taker fees (by category) and expected slippage or partial-fill costs. Also account for resolution and UMA dispute risk before treating an opportunity as realised profit.
What does PolyArb provide for traders concerned about fees and latency?
PolyArb is a non-custodial arbitrage bot priced at $99/month, offering ~40ms latency, Telegram and Discord alerts, and a $7.62 minimum guaranteed edge metric used in its reporting. It helps capture spreads net of tariffs but does not eliminate market or oracle risks.

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