The 2025 tax season is here: 9 important new things to know

Core Insights - The "One Big Beautiful Bill" Act introduces significant changes to tax rules, including permanent extensions of provisions from the 2017 Tax Cuts and Jobs Act (TCJA) [1] Group 1: Standard Deductions - The standard deduction for 2025 is set at $15,750 for single filers and married couples filing separately, $31,500 for married couples filing jointly, and $23,625 for heads of households, with annual inflation adjustments codified into law [2] - The IRS has already announced the standard deductions for 2026: $16,100 for single filers and married couples filing separately, $32,200 for married couples filing jointly, and $24,150 for heads of households [3] Group 2: Senior Deductions - Taxpayers aged 65 and older can claim an additional $6,000 deduction per person, allowing married couples to deduct up to $12,000 annually, with phase-out thresholds starting at $150,000 for married couples and $75,000 for single filers [4] - This new deduction creates planning opportunities for seniors, particularly regarding Roth conversions, as exceeding the income thresholds could increase tax liabilities [5] Group 3: SALT Cap Changes - The SALT deduction cap is temporarily increased from $10,000 to $40,000 for 2025, with a phase-out for high earners making $500,000 annually, and the cap will revert to $10,000 in 2030 [5] - The increase in the SALT cap has been characterized as a benefit primarily for higher-income individuals in high-cost states [6]