Polymarket and Kalshi, the two largest prediction markets in the United States, have both upgraded their verified sign-up codes for July 4th. As of Saturday, July 4, 2026, every Polymarket invite code and promo code carries a $50 bonus on a $20 deposit, for $70 total to trade, and every Kalshi invite code and promo code is a 1:1 match: spend $10, get $10, for $20 total. The verified Polymarket codes are CUSE, SILIVE, OREGON, MASS, and CLEVE. The verified Kalshi codes are SYRACUSE, SILIVE, OREGONLIVE1, MASSLIVE1, and CLEVELAND. All are confirmed active for new US accounts this Fourth of July.
The Independence Day upgrade lands on one of the busiest sports days of the summer. The World Cup knockout round delivers two more matches today, and there is a full Fourth of July MLB slate running from late morning into the night. With the holiday here, any verified Polymarket invite code or Kalshi promo code funds an account in minutes — the July 4th bonus is live right now.
Any one code per platform is all you need. If you see a Polymarket invite code, a Polymarket promo code, or a Kalshi code that is not on this list, confirm it before using it — unverified codes may be expired or may not carry the current July 4th offer.
Here is the full list of verified codes, verified active as of Saturday, July 4, 2026—a.k.a. Independence Day. Every Polymarket invite code carries the same $70 offer, and every Kalshi promo code carries the same $20 promo:
PlatformVerified codesNew-user offerPolymarketCUSE, SILIVE, OREGON, MASS, CLEVE$50 bonus on a $20 deposit ($70 total to trade)KalshiSYRACUSE, SILIVE, OREGONLIVE1, MASSLIVE1, CLEVELANDSpend $10, get $10 ($20 total to trade)
What is the Polymarket invite code and promo code?
This Polymarket Invite Code secures a $50 cash trading bonus in three simple steps.Polymarket Invite Code.
The Polymarket invite code — also labeled a Polymarket promo code — is a sign-up code that unlocks a $50 bonus on a first deposit of $20, for $70 in total trading funds. Five Polymarket codes are verified and active this July 4th, 2026: CUSE, SILIVE, OREGON, MASS, and CLEVE. Each works identically — enter any one in the invite or promo field at sign-up, and the bonus is credited the moment your deposit clears. Polymarket issues a single string per account across every label, so a Polymarket invite code, a Polymarket promo code, and a Polymarket referral code are the same thing.
What is the Kalshi invite code and promo code?
The Kalshi invite code — also labeled a Kalshi promo code — is a sign-up code that unlocks a 1:1 deposit match: spend $10, get $10, for $20 in total trading funds. Five Kalshi codes are verified and active this July 4th, 2026: SYRACUSE, SILIVE, OREGONLIVE1, MASSLIVE1, and CLEVELAND. As on Polymarket, each Kalshi invite code also works as a Kalshi promo code or a Kalshi referral code — one string, entered once at registration, unlocks the same Kalshi sign-up bonus.
How to use a Polymarket or Kalshi invite or promo code:
On Polymarket (using the Polymarket invite code SILIVE as an example):
- Go to Polymarket.com or download the Polymarket app.
- Create a new US account and enter a Polymarket code — CUSE, SILIVE, OREGON, MASS, or CLEVE — in the invite or promo field.
- Complete identity verification.
- Deposit $20 — your $50 bonus is credited, for $70 total to trade.
This Kalshi Referral Code secures a $10 bonus in eligible trading states nationwide. Review the Kalshi Referral Code’s updated terms and conditions for 2026.Kalshi.
On Kalshi (using the Kalshi promo code SYRACUSE as an example):
- Go to Kalshi.com or open the Kalshi app.
- Sign up and enter a Kalshi code — SYRACUSE, SILIVE, OREGONLIVE1, MASSLIVE1, or CLEVELAND — in the promo or invite field.
- Verify your identity to activate the account.
- Spend $10 — your $10 bonus is credited, for $20 total to trade.
World Cup odds on Polymarket and Kalshi:
The World Cup knockout round headlines today’s board with two matches. The two platforms price these fixtures differently: Polymarket runs a match-result market (one side wins, the other wins, or a draw inside 90 minutes), quoted in cents, while Kalshi prices which side advances in the knockout round, shown as a percentage. Here is how each looks as of July 4, 2026:
MatchPolymarket — match result (Yes ¢)Kalshi — to advance (Yes %)Canada vs. MoroccoCAN 19¢ · Draw 28¢ · MAR 55¢Canada 28% · Morocco 72%Paraguay vs. FrancePAR 5¢ · Draw 13¢ · FRA 84¢Paraguay 10% · France 90%
Because the markets measure different things, the numbers are not directly comparable — a side’s chance of advancing through extra time and penalties runs higher than its chance of winning in regulation, which is why Kalshi’s advance prices sit above Polymarket’s match-result prices for the same team. France is the heaviest favorite on the slate, priced at 84¢ to win outright and 90% to advance, while Morocco is a clear favorite over Canada on both platforms. Polymarket’s Canada vs. Morocco market has drawn the deeper volume of the two at more than $1.1 million. A Polymarket invite code or Kalshi promo code puts bonus funds on either contract.
Fourth of July MLB slate on Polymarket and Kalshi:
Kalshi odds for the 2026 World Cup are diverging from Polymarket.Kalshi
Saturday, July 4 brings a full Independence Day MLB schedule with live markets on both platforms from late morning through the night. Here is the slate and the probable starting pitchers driving the odds:
MatchupFirst Pitch (ET)Probable PitchersPittsburgh at Washington11:05 amB. Ashcraft (8-3, 3.33 ERA) vs. Z. Littell (7-6, 5.29 ERA)Minnesota at N.Y. Yankees1:35 pmC. Prielipp (2-5, 4.96 ERA) vs. C. Rodon (4-2, 3.30 ERA)Detroit at Texas4:05 pmJ. Flaherty (1-8, 4.97 ERA) vs. K. Rocker (2-6, 3.83 ERA)Toronto at Seattle4:10 pmS. Bieber (0-0, 6.00 ERA) vs. L. Gilbert (6-5, 3.42 ERA)Chi. White Sox at Cleveland7:10 pmS. Burke (5-4, 3.69 ERA) vs. P. Messick (7-5, 2.85 ERA)Tampa Bay at Houston7:10 pmD. Rasmussen (7-4, 2.45 ERA) vs. H. Brown (1-0, 1.78 ERA)Baltimore at Cincinnati7:10 pmB. Young (6-2, 3.11 ERA) vs. H. Greene (-, 0.00 ERA)St. Louis at Chi. Cubs8:08 pmK. Leahy (6-4, 4.09 ERA) vs. S. Imanaga (5-6, 4.30 ERA)N.Y. Mets at Atlanta8:08 pmS. Manaea (1-3, 4.71 ERA) vs. C. Sale (8-6, 2.10 ERA)Philadelphia at Kansas City8:10 pmJ. Luzardo (6-4, 3.88 ERA) vs. M. Wacha (5-5, 3.31 ERA)San Francisco at Colorado8:10 pmR. Ray (7-6, 3.39 ERA) vs. R. Feltner (2-2, 4.42 ERA)Boston at L.A. Angels9:38 pmS. Gray (9-1, 2.69 ERA) vs. S. Aldegheri (3-3, 4.85 ERA)Miami at Athletics9:40 pmS. Alcantara (9-4, 4.20 ERA) vs. A. Civale (5-5, 5.05 ERA)Milwaukee at Arizona9:40 pmB. Woodruff (2-1, 2.59 ERA) vs. M. Kelly (5-8, 5.84 ERA)San Diego at L.A. Dodgers10:10 pmG. Canning (1-5, 7.09 ERA) vs. Y. Yamamoto (8-5, 2.67 ERA)
Both Polymarket and Kalshi run live moneyline markets on every game above, with prices moving in real time as lineups and starters are confirmed. A verified code on either platform funds an account in time for first pitch.
Polymarket and Kalshi for the Fourth of July:
The Fourth of July is one of the year’s biggest days for US sports, and both Polymarket and Kalshi have upgraded their sign-up codes to match it. The July 4th promo codes are live across the holiday, so there is no narrow window to beat — new traders can fund an account any time today and still claim the full bonus. With the World Cup knockout round and a full Independence Day MLB slate on the board, Fourth of July traders have plenty to work with, and a verified Polymarket invite code or Kalshi promo code lands the bonus the moment a deposit clears. For anyone who has been meaning to open an account, there is no better day than the Fourth to do it.
Polymarket vs. Kalshi: invite and promo codes compared:
Both platforms are US-legal prediction markets running new-user code offers this July 4th. Here is how the Polymarket and Kalshi codes compare:
PolymarketKalshiVerified codesCUSE, SILIVE, OREGON, MASS, CLEVESYRACUSE, SILIVE, OREGONLIVE1, MASSLIVE1, CLEVELANDBonus$50 on a $20 deposit ($70 total)$10 on a $10 spend ($20 total)Platform typePeer-to-peer prediction marketCFTC-regulated exchangePrices set byTrader supply and demandTrader limit orders (order book)
The difference comes down to mechanics. Polymarket’s peer-to-peer structure means prices move on trader sentiment, which tends to produce faster price discovery and deeper volume on the biggest boards like the World Cup. Kalshi runs as a CFTC-regulated exchange with an order book. Many traders open both for the holiday, using a Polymarket invite code and a Kalshi promo code, to compare Polymarket odds against Kalshi odds before committing funds.
Do the Polymarket and Kalshi codes work as referral codes?
Yes. On both platforms the same string works as an invite code, a promo code, or a referral code — there is no separate code for each label. The Polymarket referral codes are the same five strings as the invite and promo codes: CUSE, SILIVE, OREGON, MASS, and CLEVE. The Kalshi referral codes are SYRACUSE, SILIVE, OREGONLIVE1, MASSLIVE1, and CLEVELAND. Whichever field it lands in at sign-up, entering a verified code unlocks the same July 4th bonus — $70 total on Polymarket, $20 total on Kalshi.
Are Polymarket and Kalshi legal in the US?
Yes. Kalshi is a CFTC-regulated prediction market exchange available across the United States, and Polymarket is a prediction market open to US users. Neither is a sportsbook. Instead of a house setting lines, you buy and sell contracts on event outcomes for a price between $0.01 and $0.99, and the market price reflects the probability of each outcome — which is why the World Cup markets above are quoted in cents and percentages. That structure is why both platforms are accessible in many states where traditional online sports betting is not, and why a Polymarket invite code or Kalshi promo code is open to most new US users.
All verified Polymarket and Kalshi codes for July 4th:
To recap, all ten codes are confirmed active as of July 4, 2026. The five Polymarket codes — CUSE, SILIVE, OREGON, MASS, and CLEVE — each unlock $50 on a $20 deposit, for $70 to trade. The five Kalshi codes — SYRACUSE, SILIVE, OREGONLIVE1, MASSLIVE1, and CLEVELAND — each unlock a 1:1 match, spend $10, get $10, for $20 to trade. Every Polymarket invite code, promo code, and Kalshi code is verified for new US accounts and applies across the platform, including the World Cup and MLB markets.
Conclusion: The verified Polymarket and Kalshi invite and promo codes are upgraded for July 4th:
Polymarket and Kalshi have both upgraded their verified invite, promo, and referral codes for the Fourth of July, with $70 in trading funds on Polymarket and $20 on Kalshi for new US accounts. The verified Polymarket codes are CUSE, SILIVE, OREGON, MASS, and CLEVE; the verified Kalshi codes are SYRACUSE, SILIVE, OREGONLIVE1, MASSLIVE1, and CLEVELAND. With two World Cup knockout matches and a full Independence Day MLB slate on the board, there is little reason to wait — a verified July 4th code lands the bonus the moment your deposit clears.
Kalshi Disclaimer: Must be 18 years or older and have a legal, U.S. residential address within the applicable state, D.C., or U.S. territories. Not available in AZ, IL, MA, MD, MI, MT, NJ, and OH. Event contracts trading involves risk of substantial loss and is not suitable for all investors. Prediction markets content is not intended for individuals located in jurisdictions where they are prohibited.
Polymarket Disclaimer: Must be 18 years or older and have a legal, U.S. residential address within the applicable state, D.C., or U.S. territories. Polymarket is a prediction market platform. Trading involves risk. Only participate where legally permitted and never trade more than you can afford to lose.
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