Polymarket Promo Code LINESTAR: Deposit $20, Get a $50 Trading Bonus
Claim the exclusive Polymarket bonus for new users. Sign up through the Polymarket US App on iOS with promo code LINESTAR, deposit just $20, and receive a $50 trading bonus to use on any prediction market. Plus: our complete guide on how to deposit on Polymarket, how to withdraw on Polymarket, and how to turn contract prices into smarter trades.
Deposit $20, Get
$50 Trading Bonus
18+ only. iOS app only. Restrictions and eligibility requirements apply.
Polymarket Bonus Details at a Glance
The Offer
Deposit $20, get a $50 trading bonus
Promo Code
LINESTAR (or use our link)
Platform
Polymarket US App, iOS only (not desktop)
Eligibility
18+, new users, eligible jurisdictions only
How to Claim the Polymarket Sign-Up Bonus
Claiming the exclusive Polymarket new user offer takes just a few minutes. Follow these four steps to unlock your $50 trading bonus.
Download the Polymarket US App
The Polymarket bonus offer is available on iOS only. Download the Polymarket US App from the Apple App Store on your iPhone. The offer is not available on desktop.
Sign Up with Promo Code LINESTAR
Create your new Polymarket account and enter the exclusive promo code LINESTAR during registration (or use our link, which applies the offer automatically).
Deposit $20 or More
Make a first-time deposit of at least $20 using any supported deposit method. Your deposit funds your trading balance immediately.
Receive Your $50 Trading Bonus
Once your qualifying deposit clears, the $50 trading bonus is credited to your account. Use it to trade any prediction market on Polymarket.
What Is Polymarket? Prediction Markets Explained
Polymarket is one of the world's largest prediction markets, letting traders buy and sell shares on real-world event outcomes. Instead of traditional odds, each contract trades between $0.01 and $0.99 — the price directly reflects the market's implied probability of that outcome happening.
If you buy YES shares at 40 cents and the event happens, each share settles at $1.00 — a 150% return. If it doesn't, shares settle at $0. Because you can trade in and out before an event resolves, prediction market trading offers flexibility that traditional betting does not.
The Polymarket US App connects to a CFTC-regulated derivatives exchange and clearing organization, and covers markets across sports, politics, economics, crypto, and pop culture.
Example market: Will the favorite win?
YES
64¢
64% implied probability
NO
36¢
36% implied probability
Each winning share settles at $1.00. Buy YES at 64¢ and win: +56% return. The price is the probability — no hidden vig.
Why Traders Choose Polymarket
- Transparent pricing — the price is the probability, with no hidden vig baked in
- Trade in and out of positions before events resolve to lock in profit or cut losses
- Huge market variety: sports, elections, economics, entertainment, and more
- Deep liquidity on major markets means tight spreads and fast fills
- Exclusive $50 trading bonus for new users with promo code LINESTAR
How to Deposit on Polymarket
Depositing on Polymarket is quick and beginner-friendly. Here's exactly how to fund your account through the Polymarket US App on iOS:
- Open the Polymarket US App and tap your account balance
- Select the Deposit option
- Choose your preferred deposit method
- Enter your deposit amount — remember, $20 or more qualifies for the $50 trading bonus
- Confirm the transaction and your funds appear in your trading balance
Most Polymarket deposits are credited within minutes, so you can start trading prediction markets right away.
How to Withdraw on Polymarket
Withdrawing your winnings from Polymarket is just as straightforward. Follow these steps to cash out:
- Open the Polymarket US App and go to your balance
- Tap Withdraw
- Choose your withdrawal method
- Enter the amount you want to withdraw
- Confirm — processing times vary by method, but most withdrawals move quickly
Note that positions must be settled or sold before the funds are available to withdraw. Bonus funds may carry conditions before becoming withdrawable — always check the current terms in the app.
Ready to fund your account? Lock in the $50 bonus first.
Sign up with promo code LINESTAR before your first deposit — a $20 deposit unlocks the full $50 trading bonus, a 250% match.
Free Tools for Polymarket Traders
Prediction market prices are just probabilities in disguise. Use our free calculators to convert Polymarket prices to odds, find your breakeven, size positions, and spot +EV trades before you enter.
Price to Odds Converter
Convert prediction market prices to American odds
Profit Calculator
Calculate prediction market profit and returns
Breakeven Calculator
Find your breakeven win rate at any price
Arbitrage Calculator
Find risk-free opportunities across markets
Expected Value Calculator
Identify +EV trades before you enter
Kelly Criterion Calculator
Size your positions for optimal growth
Tips for Maximizing Your Polymarket Bonus
- Only deposit what you need to qualify.A $20 deposit unlocks the full $50 trading bonus — that's a 250% match on your first deposit.
- Start with liquid markets. Major sports and headline events have tighter spreads, so more of your bonus goes toward positions instead of slippage.
- Convert prices to odds first. Use our price-to-odds converter so you always know the traditional-odds equivalent of a contract price.
- Mind position sizing. Even with bonus funds, avoid putting your whole balance on one market. Our Kelly Criterion calculator can help.
- Trading involves high risk. Prediction market contracts can go to zero. Never trade more than you can afford to lose.
- Check current terms in-app. Bonus conditions, eligibility, and jurisdictions can change — always verify before you deposit.
Polymarket Promo Code & Bonus FAQ
What is the Polymarket promo code for 2026?
The exclusive Polymarket promo code is LINESTAR. New users who sign up through the Polymarket US App on iOS and deposit $20 receive a $50 trading bonus. This is one of the best Polymarket bonuses currently available for new users.
How do I deposit on Polymarket?
To deposit on Polymarket, open the Polymarket US App on iOS, tap the Deposit button, choose your deposit method, and enter an amount ($20 minimum to qualify for the trading bonus). Deposits are typically credited to your trading balance within minutes.
How do I withdraw on Polymarket?
To withdraw on Polymarket, go to your account balance in the Polymarket US App, select Withdraw, choose your withdrawal method, and confirm the amount. Withdrawal processing times vary by method, but most withdrawals are processed quickly once initiated.
Is the Polymarket bonus available on desktop?
No. The Deposit $20, Get $50 trading bonus offer is available exclusively through the Polymarket US App on iOS. It is not available on desktop or Android at this time.
Is Polymarket legal in the US?
The Polymarket US App serves as an independent software provider and affiliate of Polymarket US and Polymarket Clearing, the CFTC-regulated derivatives exchange and clearing organization. Restrictions and eligibility requirements apply, and it is not available in all jurisdictions. You must be 18+ to trade.
What can I trade on Polymarket?
Polymarket is a prediction market where you can trade contracts on real-world events, including sports outcomes, politics, economics, entertainment, and more. Prices reflect the market's implied probability of each outcome, from 1 cent to 99 cents per share.
How do Polymarket prices convert to odds?
A Polymarket price of 60 cents implies a 60% probability, roughly equivalent to -150 in American odds. You can use our free Kalshi/prediction market price-to-odds calculator to convert any contract price into American, decimal, or fractional odds instantly.
How old do I have to be to use Polymarket?
You must be at least 18 years old to use the Polymarket US App. Additional restrictions and eligibility requirements apply depending on your jurisdiction.
Ready to Claim Your $50 Polymarket Trading Bonus?
Download the Polymarket US App on iOS, sign up with promo code LINESTAR, deposit $20, and get a $50 trading bonus. Then use our free calculators to trade smarter.
18+ Only. Restrictions and eligibility requirements apply. Not available in all jurisdictions. Trading involves high risk and may result in loss of your entire investment. See polymarket.us/tos for more information. The Polymarket US App serves as an independent software provider and affiliate of Polymarket US and Polymarket Clearing, the CFTC-regulated derivatives exchange and clearing organization.