Best Prediction Market Promos for August 2026

ProphetX is our pick today, and it's one of the easiest offers here to unlock. Just place a single trade of at least $10 with promo code TANBONUS, and you'll get a $20 bonus, usually within a day.  

One thing to know up front: ProphetX asks for that first trade to trigger the bonus, so it's not a deposit-and-done deal. And the $20 is trading credit, not cash you can withdraw, but anything you win with it is yours to keep.

Put your first $10 trade on any game, then use the $20 however you like across the app. That one trade is all it takes to get going.

Prediction market platforms often provide welcome offers for new users. We compared these offers by usable bonus value, qualifying cost, expiration window, platform fees, state availability, and how easy the claim process is.

Eligible users may qualify for more than one offer, but each platform has its own identity checks, funding rules, and trade requirements. Review the table and full terms before creating an account.

✅​ Prediction Market Promo Codes last verified on August 11, 2026

Polymarket's welcome bonus is a flat $20 in trading credit for a $10 deposit, with no qualifying trade required.

You know what you're getting here before you sign up, and you don't have to trade to get it. Enter the Polymarket promo code ACTION, deposit $10, and the $20 lands once the deposit clears — no first trade, no threshold to chase, same amount for everyone. Kalshi randomizes its number and FanDuel won't tell you yours until you're in.

The catch is the usual one: it's trading credit, not cash. Trade with it, and anything you win is yours to withdraw after settlement. It helps that Polymarket is the biggest market by volume — with 30 days on the clock, you want books deep enough to get in and out at a fair price.

What we found testing it

We funded a Polymarket account with $10 via Apple Pay. The deposit cleared instantly and the $20 credit appeared immediately afterwards, under Balance/Wallet in the Profile tab, with an expiry of 30 days shown in the app. No verification hold, no manual review, nothing to claim.

One thing to watch: the bonus triggers when the deposit clears, not when you start it. ACH and crypto can take longer, so use a card or Apple Pay if you want the $20 today.

After claiming the welcome offer, you can take advantage of the app’s existing-user promos:

• Liquidity Rewards: Polymarket rewards users who add liquidity to the books. In simple terms, if you place limit orders on certain markets, you can earn extra cash. How much you get depends on things like the price you set and how long your order stays open.
• Refer-a-Friend: After you’ve traded $10,000 total, you can invite friends and earn a cut of their fees. 10% from people you refer directly and 5% from people they refer. You’ll earn these rewards for up to 30 days, or until your referral reaches Platinum status.

Read our full Polymarket review here!

FanDuel Predicts doesn't ask for a promo code for this offer. New users can claim the welcome offer just by clicking on our signup link and complete the account steps.

Once you claim the welcome bonus at FanDuel Predicts, take advantage of the app’s existing-user promos:

• Refer-a-Friend Bonus: Earn $20 per friend you successfully refer. They must sign up through your unique referral link and deposit/trade at least $5 within 30 days of signing up. You can refer up to five friends per 30 days.

You can reach Kalshi's $25 trade requirement across a few smaller trades instead of one, and they count win or lose. What you get back isn't a set number, though; the bonus lands somewhere between $15 to $500, so think of that as the ceiling rather than a sure thing.  

Enter promo code ACTION at signup, and once the credit posts, the Rewards section shows your amount and when it expires.

What Most People Actually Get

Getting "$500" is the ceiling, not the norm. Kalshi's bonus is randomized the moment it credits, and the odds tilt hard toward the low end.

According to Kalshi's terms and conditions, these are the probabilities you have to get each bonus:

We opened 20 Kalshi accounts between June and August and tracked the bonus tier each one received; 14 landed at $15, 5 at $35, 1 at $75. Meaning close to 95% of the time you'll receive between $15 and $35.

We last checked Kalshi’s bonus tiers on the morning of August 11, and the $15 tier was still by far the most common payout.

After claiming the welcome bonus, you’ll gain access to existing-user promos at Kalshi:

• Refer-a-Friend Promo: Referral offers can vary by account and campaign. The Rewards section shows the current bonus, qualifying activity, and claim deadline attached to your link. For more info, check out our review of Kalshi's Refer-a-Friend Program.
• Volume Incentive Program: This program rewards active traders who match with existing prices to buy or sell contracts.
• Liquidity Incentive Program: Get paid cash rewards for placing resting limit orders that sit on the order books and help other traders get better prices, even if your orders never get filled.

Learn More: Kalshi's Volume & Liquidity Incentive Programs

New Novig users can use promo code ACTION to Spend $25, Get $50 in Novig Coins! The key difference is that Novig Coins are free-play currency, not cash, so the $50 headline shouldn’t be compared one-to-one with trading-credit offers from Kalshi, FanDuel Predicts, DraftKings Predictions or ProphetX.

Novig Coins are useful if you want to learn the app, test sports markets and build tickets without using real-money funds. They cannot be withdrawn or exchanged for cash.

Novig also runs promotions for existing users, though they work differently from its signup offer.

• Referral: The referral program awards 25 Novig Cash to both users after the invited player signs up through the referral link and purchases at least 25 Novig Coins. Coins, Cash and Points are separate balances, so the value depends on which reward type is issued and how it can be used.
• Novig Points: Novig Points are tied to eligible activity and in-app challenges. The available tiers, monthly prize pools and reward conditions are live in the app. The value here depends on how often you use the platform rather than a single qualifying purchase.   

DraftKings Predictions doesn’t ask for a promo code for this offer. New DraftKings customers need to place a first-time trade of at least $5 to qualify for $150 in Predictions Dollars.

The payout comes in three $50 allotments rather than all at once. The first $50 follows the qualifying trade, with another $50 made available after seven days and the final $50 after 14 days. Those later rewards are click-to-claim, and each claim expires seven days after it’s issued.

Use the ProphetX promo code TANBONUS to Trade $10, Get $20!

ProphetX has one of the better bonus-to-qualifying-trade ratios on this page. You just need to place one trade of at least $10, and you’ll usually get the $20 bonus within a day. Just remember that you can’t withdraw the bonus itself. Instead, use it to place trades, and you can withdraw any winnings you make from those trades.

Other promos at ProphetX:

• Refer-a-Friend Bonuses: ProphetX offers a tiered referral program, rewarding users with $25 for each qualifying friend. Referrals must sign up and meet wagering requirements within 14 days to qualify for the bonus.

• Best guaranteed value: Polymarket (ACTION), flat $20 on a $10 deposit, no qualifying trade.

• Best platform with sports betting roots: FanDuel Predicts, familiar interface and instant funding.

• Highest potential bonus: Kalshi (ACTION), randomized up to $500, most land $15–$35.

• Best free-play trial: Novig (ACTION), $50 in Novig Coins to test the app risk-free.
• Lowest qualifying trade: DraftKings Predictions (Trade $5, Get $150 in Predictions Dollars!), split into three $50 allotments over 14 days.
• Best return on a small buy-in: ProphetX (TANBONUS), $20 bonus on a $10 trade, with a simple single-trade qualification.

Action Network rates prediction market promos by usable value, not just the number. We look at:

• Overall bonus amount
• ​Minimum deposit/purchase requirements
• ​Minimum trade requirements
• ​Expiration timeframes
• ​Payout speed ​
• Platform fees that may affect overall bonus value
• ​State availability
• ​Ease of claiming the promo

If you want to see how we rank these platforms beyond their signup bonuses, check out our review of the best prediction market apps.

Every platform has its own trigger, so your first job is knowing what actually unlocks the offer. This is where people slip up. They assume a deposit is enough, or miss a small requirement that keeps the bonus from landing. Here's the process, step by step.

Here's what triggers each bonus:

• Polymarket: Make your first qualifying deposit.
• FanDuel Predicts: Sign up and verify through the qualifying link.
• Kalshi: Hit the required trading volume. You can reach it across several trades.
• Novig: Buy at least $25 in Novig Coins.
• DraftKings Predictions: Place a first-time trade of at least $5.
• ProphetX: Place one trade of at least $10.

Promo codes vary by platform. Polymarket and Kalshi use ACTION, while ProphetX uses TANBONUS. 

FanDuel Predicts and DraftKings Predictions don’t need a promo code. You’ll still want to sign up through the qualifying offer link in this page so the right promotion is attached to your account, though.

Got your bonus? Check how it works before you trade, then go into the Rewards/Promotions section and check if the bonus shows as active or pending. Some bonuses apply automatically to your next position, others make you opt in or pick them by hand.

DraftKings Predictions is the one to keep an eye on here. Its $150 offer is split into three $50 Predictions Dollar allotments over 14 days. The later rewards are click-to-claim and expire seven days after they’re issued.

Timing matters just as much as claiming. Kalshi and Novig give you 7 days to use the bonus, while ProphetX gives you 45 days. Polymarket's window runs 7 to 30 days depending on the offer. Miss the deadline and the bonus simply disappears. DraftKings Predictions Dollars, on the other hand, expire one year after issuance, but don’t confuse that with the claim window. The $50 click-to-claims expire after 7 days, so you still need to log in and claim them on time.

Remember: you usually can’t withdraw bonus credit itself. Check the terms before placing a trade so you know how the credit works and when it disappears.

Bottom line: claiming is only half the job. Know how the bonus applies, how long you've got, and what counts as a valid trade. Nail those, and you're ready to work out which promos are actually worth your time.

Here are some of the payment methods you can expect to see from prediction market platforms. Note, some deposit methods are unavailable for withdrawals.

Short version: yes. The bonuses are real, and the platforms behind them are regulated by the Commodity Futures Trading Commission (CFTC).

These offers work like the free credit a brokerage gives you to open an account. The thing to watch isn't whether they're real, it's the terms, so know what triggers the bonus, when it expires, and what you can withdraw.

The trust comes from the oversight. Platforms like Kalshi and Polymarket's U.S. app answer to the Commodity Futures Trading Commission (CFTC), the federal agency behind futures and derivatives. It treats event contracts as financial instruments, not bets, so you're signing up with a regulated company rather than a fly-by-night site.

• 1️⃣ Look For The Regulator: A real platform names its oversight, usually the CFTC, and its legal entity.

• 2️⃣ Find Out How To Activate Welcome Bonus & Offer Expiry Date: A legit offer tells you exactly what unlocks the bonus and how long you've got.
• 3️⃣ Read Wagering Requirements: Bonus credit rarely cashes out, but winnings from it should. "Free withdrawable cash, no strings" is a red flag.
• 4️⃣ Only Claim Bonuses Through Trusted Links: Use a verified source so the offer attaches, and skip any "code" from a random DM or forum.

Prediction market promos come in all shapes and sizes. Here are some of the different bonuses offered by popular prediction markets:

• 1️⃣ Deposit Promos: Bonus credits after you add money to your account. Usually comes with a minimum deposit amount.
• 2️⃣ Signup Bonuses: Rewards you simply for creating an account and completing identity verification. Rarer, as most apps want buy-in from users.
• 3️⃣ Trade Bonuses: Credits unlocked after a qualifying trade. Usually comes with a minimum trade amount.
• 4️⃣ Purchase Matches and Bonuses: Common on sweepstakes-style platforms. You may receive virtual currency rewards tied to your first purchase.
• 5️⃣ Referral Programs: Rewards for existing users who bring in new users, usually after their referral verifies, deposits, or trades.
• 6️⃣ Liquidity and Volume Rewards: Rewards for active traders who post orders or trade certain volume to improve market depth.

August offers a lot of opportunities across different sports, whether you prefer quick trades or longer-term positions.

MLB prices can move before first pitch as news comes in about starting pitchers, weather, or lineup changes. WNBA markets, on the other hand, tend to react quickly to updates around injuries, rest days, and travel, and because trading volume can be lighter, you may notice a wider gap between buy and sell prices.

Tennis markets can move fast as well, sometimes on just a single break of serve. It’s also important to check how each platform handles retirements, since settlement rules can differ if a player doesn’t finish a match. Golf is another spot where prices move before play even starts, since weather and tee times shape outright winner and head-to-head markets.

The big one on the horizon, though, is the NFL. Preseason kicks off in August and the regular season follows in September, so this is the month to get familiar with the app before football markets take over.

Ultimately, the best way to use a bonus depends on your strategy, whether you want a quick trade or a longer hold, and whether there’s enough liquidity at the price you’re targeting. 

While prediction markets involve the trading of event contracts, they can feel similar to gambling. You can lose money, overtrade and chase a bad read because the price moved against you.

Even when trading with prediction market bonus funds, you should always prioritize responsible trading principles. This way, when your bonus funds run out, you can trade responsibly with money you deposit yourself.

Practical tips include:

1. Set a budget before you trade
2. Keep trade sizes reasonable
3. Take breaks
4. Use the platform's own tools — deposit limits, time-outs, account history and transaction records. Kalshi also runs a consumer protection hub with voluntary opt-outs.
5. If you've already self-excluded from sportsbooks, it doesn't carry over. State self-exclusion covers state-licensed operators, and these platforms are federally registered, so they sit outside it. For a cross-platform block, SelfExclude (run by IC360) covers participating prediction markets — Kalshi is integrated and others are joining. Once you set a period, it can't be lifted early.

If trading starts affecting your finances, sleep, work or relationships, step back and get support at 1-800-MY-RESET or 1-800-GAMBLER.

The six best prediction market promos are listed below. To ensure you qualify, claim them via our verified codes/links.

Remember that you can claim offers from multiple prediction market platforms, so long as you only claim each welcome bonus once. Best of luck!

1. Polymarket: Use the Polymarket promo code ACTION to Deposit $10, Get a $20 Trading Bonus!
2. FanDuel Predicts: Claim the FanDuel Predicts promo offer of Sign Up & Unlock Your Offer!
3. Kalshi: Use the Kalshi promo code ACTION to Trade $25, Get up to $500!
4. Novig: Claim the Novig promo code ACTION to Spend $25, Get $50 in Novig Coins!
5. DraftKings Predictions: No promo code is needed. Trade $5, Get $150 in Predictions Dollars!
6. ProphetX: Get the ProphetX promo code TANBONUS to Trade $10, Get $20!