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What are the exact steps to calculate my cost basis for a stock split that happened in my portfolio last year for my taxes today?

ChatGPTgpt-61 query10/31/2026
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What are the exact steps to calculate my cost basis for a stock split that happened in my portfolio last year for my taxes today?
1 real search · 1 real-search pass
IRS stock split basis allocation shares cost basis Publication 550 stock split 2025 2026Google ↗
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ChatGPT1 real searches · gpt-6
IRS stock split basis allocation shares cost basis Publication 550 stock split 2025 2026 Google ↗

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Query / typeSearchIntentQuery classRouting formatClusterFreq ↓Weight
IRS stock split basis allocation shares cost basis Publication 550 stock split 2025 2026
OBSERVED
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