Prediction Market Promo Codes & Offers
Prediction markets do not hand out casino-style deposit bonuses. What they compete on is what your money earns while it sits there, what a trade costs, and what a referral is worth. Every platform below is compared on exactly that.
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What a prediction market offer actually is
Sportsbooks and casinos buy sign-ups with free money — a matched deposit, a no-deposit bonus, a free bet. Prediction markets do not work that way, because they are exchanges rather than a house taking the other side of your bet. There is nobody to fund a giveaway.
What you get instead is structural. Kalshi pays around 4% APY on cash sitting in your account, which over a year of holding positions is worth far more than any one-off credit. Polymarket rebates 20% to 50% to makers on some markets, so posting liquidity costs less than taking it. Newer venues subsidise trading outright with zero fees while they build volume. Referral codes exist on most platforms and usually credit both sides after your first trades.
How to choose between them
Work out which of the three costs actually applies to you. If you hold positions for weeks, interest on idle cash dominates everything. If you trade often, the fee schedule matters more than any bonus. If you are opening one account to try the thing, pick on deposit friction — dollars and a bank link, or USDC and a wallet.
Our Polymarket vs Kalshi comparison works through those three costs with numbers, and the best prediction market apps ranking covers the wider field. Once you have an account, our live odds comparison shows which venue is currently cheaper on each market.
Frequently asked questions
Do prediction markets have sign-up bonuses?
Not in the casino sense — there is no standard no-deposit bonus here. Platforms compete on interest paid on idle cash, maker rebates and fee-free trading, referral credit, and points programmes that may convert into a future token. Those are what the cards above compare.
Which prediction market pays interest on your balance?
Kalshi pays roughly 4% APY on idle cash. Polymarket pays nothing on USDC balances but runs maker rebates of 20–50% on some markets, and Predict.fun pays yield on posted collateral. Details in our Kalshi review.
Are prediction market promo codes worth using?
A referral code usually credits both sides a small amount after your first trades, so there is no reason not to use one. It will not decide which platform suits you — fees, depth and settlement currency matter far more, which is what our platform rankings weigh.
Do I need to deposit to open an account?
No. All of these let you open an account and browse before funding it. Regulated venues require identity verification before trading; the crypto-settled ones need a funded wallet — see how to deposit on Polymarket.
Is signing up to a prediction market legal in the US?
Kalshi is a CFTC-regulated designated contract market; Polymarket acquired a CFTC-licensed exchange to serve US traders. Several states have challenged event contracts, so availability varies — the current position is in our legal guide.
PredictReport earns a commission when you open an account through links on this page. It does not change what you pay, and it does not decide the order — that is set editorially and every platform here is reviewed in full under Ecosystem. Trading involves risk of loss. 18+.
