Why 2025 Crypto Taxes Will Be Trickier Than Normal: What You Need to Know

What It Covers

Laura Walter, CPA and founder of CryptoTaxGirl, explains why 2025 crypto taxes present unprecedented complexity. New Form 1099-DA from US exchanges, mandatory wallet-by-wallet accounting replacing universal methods, and safe harbor reallocation requirements create substantial compliance burdens. The episode covers specific tax treatment for DeFi, staking, mining, airdrops, prediction markets, and strategies for minimizing tax liability.

Key Questions Answered

• •Form 1099-DA Requirements: US exchanges must issue Form 1099-DA by February 17, 2026, showing total sales proceeds without cost basis. Taxpayers must supplement missing cost basis information or face default zero basis treatment, resulting in massive overpayment. Wait to file taxes until receiving this form to avoid discrepancies that could trigger audits.
• •Wallet-by-Wallet Accounting Transition: Starting January 1, 2025, taxpayers must abandon universal accounting methods for wallet-by-wallet tracking. This requires safe harbor reallocation where you assign cost basis to specific wallets and exchanges. Allocate lowest basis to long-term storage wallets you rarely touch, highest basis to active trading wallets to minimize unintentional capital gains on routine transactions.
• •Accounting Method Selection: Choose HIFO, LIFO, or FIFO on exchanges like Coinbase before year-end to control which coins sell first. HIFO maximizes loss deferral by selling highest-cost coins first. FIFO benefits those with only long-term holdings since married couples can realize $131,000 in long-term capital gains tax-free when combined with standard deduction.
• •Prediction Market Tax Treatment: Polymarket and similar platforms create two taxable events: depositing crypto triggers capital gains, then wins and losses count as gambling income. Gambling losses only deduct if you itemize on Schedule A, and the 2026 tax law limits deductions to 90% of winnings, creating phantom income even on breakeven activity.
• •Stablecoin Reporting Burden: Stablecoin transactions appear on Form 1099-DA with zero cost basis despite having equal proceeds and basis. Taxpayers must manually supplement these on Schedule D and Form 8949. The proposed Digital Asset Parity Act would eliminate stablecoin reporting entirely, treating them like cash rather than property for tax purposes.
• •Airdrop Income Recognition: Airdrops count as ordinary income at fair market value when you gain dominion and control, even if you never sell. Set aside tax money immediately for significant airdrops. Proposed legislation would defer taxation until sale, but current law requires immediate income recognition regardless of whether a liquid market exists for the token.