Polymarket Promo Code for Existing Users: The Direct Answer
We are Splash Play, not Reddit: no sign-up promo code can be added to an existing Polymarket US account, because the campaign is tied to the code used at onboarding; what an existing user can earn is $25 per friend through Refer-A-Friend, up to 50 referrals, plus any campaign Polymarket US presents to them.
Polymarket Promo Code SPLASH: Deposit $10, Get $25
PolymarketPartner · Paid partnership with Polymarket
18+ Only. Restrictions and eligibility requirements apply. Not available in all jurisdictions. Trading is risky. 100% loss can occur. See https://polymarketexchange.com/files/legal/latest/rulebook for more information. The Polymarket US App serves as an independent software provider and affiliate of Polymarket US and Polymarket Clearing, the CFTC-regulated exchange and clearing organization.
- Referral terms: code SPLASH is for first-time Polymarket US users who sign up with it, finish onboarding, agree to the Polymarket US Rulebook, deposit at least $10 and make at least $1 of trades within 90 days of using the code. The welcome offer's own deposit window is shorter: 7 days.
What an existing user can actually use
- Refer-A-Friend: your referral code is your Polymarket US username, on the Invite Friends screen in the Polymarket US App. When a new user signs up with it and deposits at least $10, you each receive a $25 bonus credit.
- Posted campaigns: Polymarket US runs a Deposit and Trading Incentive Program for eligible participants and posts each campaign's terms for its duration. A participant qualifies only for the campaign presented to them.
- The full existing-user guide is Polymarket promo code for existing users, which this page extends rather than repeats.
Why forum threads mislead here
Threads mix new-user codes with existing-user programs and go stale as campaigns change. The record is Polymarket US's program terms: referral codes must be applied during sign-up, and campaign terms are posted for the duration of the campaign.
Polymarket US promo code SPLASH
New to Polymarket US? Code SPLASH is for first-time Polymarket US users: Deposit $10, Get $25 in trading credits.
18+ Only. Restrictions and eligibility requirements apply. Not available in all jurisdictions. Trading is risky. 100% loss can occur. See https://polymarketexchange.com/files/legal/latest/rulebook for more information. The Polymarket US App serves as an independent software provider and affiliate of Polymarket US and Polymarket Clearing, the CFTC-regulated exchange and clearing organization.
FAQ
Sources
- Polymarket US: User Incentive Programs: https://docs.polymarket.us/incentives/user-programs
- Polymarket US: Refer-A-Friend FAQs: https://docs.polymarket.us/faqs/refer-a-friend-faqs
All sources read October 29, 2026.
PolymarketPartner · Paid partnership with Polymarket. Polymarket US is for people 18 or older. Nothing on this page is a recommendation to make any trade, and any list of markets is information only and not a view on any market.