Last Updated on July 19, 2026 by Patrick Camuso, CPA
Quick answer (read this first):
What HIP-4 is: Hyperliquid’s outcome market framework, announced in September 2025, live on testnet in February 2026, and now rolling out on mainnet in stages, introduces binary outcome instruments directly into Hyperliquid’s trading engine. The initial mainnet release is limited: the first market is a recurring binary outcome that settles daily to the BTC mark price on HyperCore, with additional features and markets staged. Contracts are fully collateralized, settle within a fixed range, and have used USDH, Hyperliquid’s native aligned stablecoin, as the quote asset. Outcome contracts share a margin account with the platform’s perpetual futures and spot positions.
The practical posture: HIP-4 tax treatment cannot be determined from the product label alone. The analysis depends on the actual instrument, protocol mechanics, how the position is opened and closed, the collateral used, and the taxpayer’s facts. HIP-4 outcome contracts require analysis across at least three independent tax questions before characterization can be established. Each layer introduces uncertainty for Hyperliquid prediction market tax that does not exist on centralized platforms like Kalshi. Traders with material HIP-4 activity should document their positions as activity begins, not after it accumulates.
What Hyperliquid Is and What HIP-4 Does
Hyperliquid is a high-performance decentralized exchange running on its own Layer-1 blockchain, HyperCore. Perpetual futures, spot trading, and now outcome contracts execute and settle on Hyperliquid’s proprietary L1 with sub-second finality. The platform is not a CFTC-registered entity and has no KYC infrastructure for most users.
HIP-4, formally Hyperliquid Improvement Proposal 4, was submitted in September 2025. The proposal introduces outcome markets as a new instrument category on HyperCore. On February 2, 2026, Hyperliquid announced the proposal’s acceptance and launched outcome trading on testnet, with BTC and HYPE binary markets available in USDH. Mainnet rollout is staged. As of July 2026, Hyperliquid’s documentation describes outcome markets as part of the mainnet release, with the first market deployed as a recurring binary outcome that settles daily to the BTC mark price on HyperCore, and with additional features and markets, including multi-outcome markets, to be rolled out in stages. Permissionless deployment is expected to be subject to protocol staking requirements. The available markets and mechanics are changing quickly and should be confirmed against current official documentation before relying on them.
HIP-4 outcome contracts are binary instruments. A contract trades between 0 and 1, where the price reflects the market’s implied probability that a specified outcome occurs. If a trader buys a YES contract at 0.60 on a BTC price threshold event, they pay 0.60 USDH per contract. If the event resolves favorably, the contract settles at 1 and the trader receives 0.40 USDH profit. If it resolves against them, the contract settles at 0 and the 0.60 USDH collateral is lost. Contracts are fully collateralized. There is no leverage and no liquidation risk, which distinguishes them from Hyperliquid’s perpetual futures markets.
HIP-4’s defining structural feature is composability: outcome contracts run natively in the same margin account as a trader’s perpetual futures and spot positions. A trader can hold a YES outcome contract, a long BTC perpetual, and a spot ETH position in a single account with shared collateral. That integration is unusual among prediction market platforms, and it creates a tax complication most platforms do not produce.
Why U.S. Traders Need to Read This First
Hyperliquid’s user interface geo-blocks U.S. users, and its terms restrict access by U.S. persons. The underlying protocol, Hyperliquid’s L1, is permissionless and does not enforce this restriction at the blockchain level.
U.S. traders who access Hyperliquid through a VPN or by interacting directly with the protocol are doing so despite terms that restrict access by U.S. persons. Any contractual or platform-access consequences are a matter between the trader and the platform, separate from taxes.
The tax problem exists regardless of how access occurred. U.S. persons are taxable on worldwide income. Trading on an offshore, geo-blocked protocol does not remove the reporting obligation. On-chain activity on Hyperliquid’s L1 is permanently recorded and accessible through blockchain analytics tools. The on-chain record does not distinguish between a trader who accessed the platform legally from outside the U.S. and a U.S. person who used a VPN.
Every U.S. trader who has interacted with Hyperliquid, including HIP-4 outcome contracts, has a tax obligation that exists independently of whether the platform issued any documentation, whether a VPN was used, and whether the frontend was technically accessible at the time.
A taxpayer generally answers “Yes” to the digital asset question on Form 1040 when the taxpayer received a digital asset as payment or a reward, sold or exchanged a digital asset, otherwise disposed of a financial interest in a digital asset, or transferred ownership of a digital asset. Merely holding a digital asset, purchasing it with U.S. dollars, or transferring it between wallets or accounts owned or controlled by the taxpayer generally does not by itself require a “Yes” answer. A “No” answer that is inconsistent with the taxpayer’s on-chain record creates exposure independent of the underlying income reporting.
The Three-Layer Tax Analysis
HIP-4 outcome contracts require working through three analytically distinct questions before characterization of gain or loss can be established. These layers are independent. The analysis does not start with which characterization produces the lowest rate.
Layer 1: Outcome Contract Characterization
Section 1256 is not a taxpayer election, and it requires, among other things, that a contract trade on a qualified board or exchange. Hyperliquid is not a CFTC-registered entity: it has no DCM designation, no SEF registration, and no U.S. regulatory status under the Commodity Exchange Act. On current facts, no qualified board or exchange route is identified for HIP-4, so the venue element of Section 1256 is not currently satisfied. If that status ever changed, venue qualification alone would still not establish that any HIP-4 contract is a Section 1256 contract; contract qualification is a separate question. On Kalshi, by comparison, the DCM registration addresses the venue element while the contract-level questions remain open.
Where the wagering rules do not clearly apply and the venue element of Section 1256 is not satisfied, the remaining analysis is capital treatment under Section 1221 or ordinary treatment under a contingent contract framework. Capital treatment requires a threshold determination that the contract constitutes a capital asset in the taxpayer’s hands, which is not automatic. Ordinary character alone does not establish recognition, deductibility, placement, limitation, or netting; for an individual, an otherwise allowable ordinary nonbusiness loss outside a sale or exchange is a miscellaneous itemized deduction currently disallowed under Section 67(h). For the loss framework, see our prediction market loss deductions analysis. For a full analysis of the characterization frameworks applicable to prediction market contracts, see our Prediction Market Tax Guide.
Layer 2: USDH Settlement
HIP-4 contracts have used USDH, a Hyperliquid-native stablecoin issued under Hyperliquid’s aligned stablecoin framework, which requires backing by cash, short-term U.S. Treasuries, and tokenized Treasury or money market funds with par redemption. As of publication, USDH is a newer stablecoin without the track record of USDC.
Where USDH maintains its peg, gain or loss on the USDH itself is typically immaterial. Do not assume, however, that a stablecoin always has tax basis equal to its stated value. Digital asset funding, collateral movements, fees, rewards, and settlement transfers may create separate tax and recordkeeping questions from the classification of the HIP-4 position itself.
USDH is a digital asset. It has a cost basis at the moment of receipt. Subsequent use or movement of USDH may create a disposition, basis-tracking requirement, or other tax consequence depending on the transaction mechanics and ownership facts. A transfer between wallets or accounts owned by the same taxpayer is not automatically a taxable disposition. If USDH trades away from its peg, a later sale, exchange, or other taxable disposition may produce a separate gain or loss on the USDH position, independent of the outcome-contract analysis.
The practical obligation is to track basis in all USDH received and treat every subsequent movement of that USDH as a potential taxable event.
Layer 3: Cross-Margin Interaction with Perpetual Futures Positions
Because HIP-4 outcome contracts share a margin account and collateral pool with Hyperliquid’s perpetual futures and spot positions, traders who hold both outcome contracts and related perpetual positions may implicate the straddle rules under Section 1092 if the contracts are actively traded personal property and the positions are offsetting. Application is fact-specific.
A YES contract on Bitcoin exceeding a specified threshold paired with a short Bitcoin perpetual may present a potential offsetting-position question. Whether Section 1092 applies depends on whether the positions substantially diminish the taxpayer’s risk of loss, based on the precise contract definition, position direction, size, duration, and other facts. Under the straddle rules, a loss on one leg is deferred to the extent of unrecognized gain in the offsetting position that remains open. The straddle analysis looks through the form of the positions to their economic relationship.
The straddle analysis requires a portfolio-level review of all open and closed positions across both the outcome contract book and the perpetual futures book for any period where both were active. That determination requires judgment applied to the full position history and cannot be automated from transaction exports alone.
Reporting and Documentation
Hyperliquid issues no tax documentation. There is no 1099-B, no 1099-DA, no 1099-MISC, and no profit and loss summary designed for tax reporting. Hyperliquid has no KYC process for most users and no mechanism to generate taxpayer-specific reporting.
Transaction reconstruction for U.S. tax purposes requires building a complete transaction history from Hyperliquid’s on-chain data using the platform’s own explorer and third-party analytics tools that support HyperCore’s L1. This reconstruction is more complex than Polymarket’s Polygon-based reconstruction because HyperCore is a proprietary Layer-1 with data structures distinct from Ethereum-compatible chains, and third-party tax software support for HyperCore is limited as of publication.
Records should preserve, for each outcome contract, the acquisition date and cost in USDH, any sale or closing before settlement, and the resolution amount and timestamp, so that whatever reporting framework applies can be substantiated. That record detail matters regardless of the reporting unit ultimately used.
USDH movement must be tracked separately, including all receipts from settled contracts, transfers into and out of the margin account, and any conversions of USDH to other assets or fiat currencies. Where USDH is treated as property rather than USD equivalent, each movement requires basis tracking.
Cross-position activity must also be captured: any periods where outcome contracts and perpetual futures positions were simultaneously open in the same account, and any position changes that may have affected the straddle analysis.
A U.S. person who received, sold, exchanged, or otherwise disposed of USDH or any other digital asset through Hyperliquid during the year generally must answer “Yes” to the digital asset disclosure question on Form 1040; merely holding a digital asset, or transferring it between the taxpayer’s own wallets or accounts, generally does not by itself require a “Yes” answer.
How HIP-4 Compares to Kalshi and Polymarket
For CFTC registration, Kalshi holds DCM status, which is a necessary but not sufficient condition for Section 1256 analysis. The regulatory status of other platforms continues to evolve and must be evaluated based on the specific platform and time period at issue. Hyperliquid has no CFTC registration.
For settlement currency, Kalshi settles in USD. Polymarket’s on-chain platform uses pUSD on Polygon as its collateral and redemption asset; pUSD is backed by USDC. Hyperliquid settles in USDH, a newer native stablecoin. The stablecoin analysis adds complexity regardless of peg stability.
For tax reporting, Kalshi issues limited 1099-series forms for certain transactions. Polymarket’s on-chain platform issues no standardized U.S. tax forms. Hyperliquid issues nothing. For transaction reconstruction, Kalshi provides exports of contract-level activity. Polymarket requires Polygon blockchain reconstruction. Hyperliquid requires HyperCore L1 reconstruction using Hyperliquid-specific explorer tools with limited third-party tax software support as of publication.
For professional assistance with Hyperliquid HIP-4 transaction reconstruction and characterization analysis, our prediction market tax reporting services are available.
Frequently Asked Questions: Hyperliquid HIP-4 Taxes
What is Hyperliquid HIP-4 and how is it different from Kalshi or Polymarket?
HIP-4 is Hyperliquid’s outcome market framework, introducing binary outcome instruments directly into Hyperliquid’s trading engine, with a staged mainnet rollout under way. Contracts settle within a fixed range in USDH, Hyperliquid’s native aligned stablecoin, and operate in the same margin account as the platform’s perpetual futures and spot positions. The key distinctions from Kalshi and Polymarket are that Hyperliquid has no CFTC registration, settles in USDH rather than USD or Polymarket’s USDC-backed pUSD, issues no tax documentation, and allows outcome contracts to be held alongside perpetual futures in a shared margin account. That composability creates straddle questions that most other prediction market platforms do not raise.
Does Section 1256 apply to HIP-4 outcome contracts?
Not on current facts. Section 1256 is not a taxpayer election, and it requires, among other things, that a contract trade on a qualified board or exchange, which includes CFTC Designated Contract Markets. Hyperliquid currently has no CFTC registration, and no other qualified board or exchange route is identified, so the venue element of Section 1256 is not currently satisfied and the analysis cannot proceed past that threshold. If the venue status ever changed, contract qualification would remain a separate unresolved question. By comparison, Kalshi’s DCM registration addresses the venue element while its contract-level questions remain open under current law.
Do I have to report HIP-4 activity even if I used a VPN to access Hyperliquid?
Yes. U.S. persons are taxable on worldwide income from all sources regardless of how access occurred. Using a VPN to bypass Hyperliquid’s geo-block does not remove the tax reporting obligation. The on-chain record of your activity exists permanently on Hyperliquid’s L1 and is accessible through blockchain analytics tools. Hyperliquid’s terms restrict access by U.S. persons; that is a separate contractual question with the platform, and the tax obligation exists independently of it.
How does USDH settlement affect my tax reporting?
USDH settlement creates a second layer of analysis on top of the outcome contract characterization. Where USDH maintains its peg, gain or loss on the USDH itself is typically immaterial, but basis must still be tracked. Where USDH trades away from its peg, a later sale, exchange, or other taxable disposition may produce a separate gain or loss. The change in value alone does not create a recognized gain or loss while the taxpayer continues to hold the USDH. Where USDH is held in the margin account and used for further trading, basis tracking in USDH is required as a distinct asset. Traders should document their basis in USDH received from settled contracts and track any subsequent movements.
How do I reconstruct my Hyperliquid HIP-4 transaction history for tax purposes?
Hyperliquid provides no standardized tax documentation. Transaction history must be reconstructed from HyperCore L1 on-chain data using Hyperliquid’s own explorer and third-party analytics tools that support the HyperCore L1 data structure. The reconstruction must capture outcome contract acquisitions, dispositions, and settlements with cost basis in USDH; USDH movements into and out of positions; and the full cross-position history for straddle analysis. Third-party crypto tax software support for HyperCore is limited as of publication. Manual reconstruction from on-chain data is the primary available method for most traders.
What is the digital asset disclosure requirement for Hyperliquid traders?
A taxpayer generally answers “Yes” to the digital asset question on Form 1040 when the taxpayer received a digital asset as payment or a reward, sold or exchanged a digital asset, otherwise disposed of a financial interest in a digital asset, or transferred ownership of a digital asset. Merely holding a digital asset, purchasing it with U.S. dollars, or transferring it between wallets or accounts owned or controlled by the taxpayer generally does not by itself require a “Yes” answer. A “No” answer that is inconsistent with the taxpayer’s on-chain record creates exposure independent of the underlying income reporting.
Is it too early to think about HIP-4 taxes while the rollout is still in progress?
The early rollout period is the right time to establish the analytical framework, not after activity has accumulated. Working through outcome contract characterization, USDH settlement treatment, and the cross-margin straddle evaluation is easier before positions are held than after a full year of activity has developed. Characterization decisions made at the outset and documented contemporaneously are more defensible under examination than positions reconstructed after the fact. Traders who plan to use HIP-4 markets should establish their framework now.
This article is provided by Camuso CPA for general informational purposes and does not constitute legal, tax, accounting, or investment advice. Tax laws and regulations are evolving rapidly and the information presented may not reflect current guidance. Reading this article does not create a CPA-client relationship. For advice on your specific situation, schedule a consultation with Camuso CPA.
Camuso CPA, PLLC
