The AMT exemption rate is also adjusted for inflation. The AMT exemption amount for tax year 2025 for single filers is $88,100 and begins to phase out at $626,350 (in 2024, the exemption amount for single filers was $85,700 and began to phase out at $609,350). In 2025, the AMT exemption amount for married couples filing jointly is $137,000 and begins to phase out at $1,252,700 (in 2024, the exemption amount for married couples filing jointly was $133,300 and began to phase out at $1,218,700).
