Key tax law changes for 2025:

• The Child Tax Credit remains at a maximum of $2,000 per qualifying child under 17, with the refundable portion increased to $1,700. 
• The standard deductions have been raised to $15,000 for single filers, $30,000 for married couples filing jointly, and $22,500 for heads of households. 
• The top marginal tax rate remains at 37% for incomes over $626,350 for single filers and $751,600 for married couples filing jointly. 
• The Alternative Minimum Tax exemption amounts have increased to $88,100 for single filers and $137,000 for married couples filing jointly. 
• The Earned Income Tax Credit's maximum amount for three or more qualifying children has increased to $8,046. 
• The Qualified Transportation Fringe Benefit's monthly limitation has been raised to $325, and the Health Flexible Spending Arrangements employee salary reduction limit has increased to $3,300.