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cost basis

Cost Basis Methods: FIFO, Spec ID, and Average Basis Explained

November 3, 2026 by Bruno M.
AI-generated editorial image: Organized financial accounting documents and ledgers under soft daylight on a minimalist desk.

Understand how FIFO, Specific Identification (Spec ID), and Average Basis determine capital gains on stock and ETF sales, plus IRS rules and tax lot strategies.

Categories Market Education Tags capital gains tax, cost basis, fifo vs spec id, index funds, investing basics, tax lot accounting

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