For married couples filing jointly, the standard deduction increases to $30,000, up $800 from tax year 2024. For heads of households, it is $22,500 for tax year 2025, up $600 from tax year 2024. For single taxpayers and married individuals filing separately for tax year 2025, the standard deduction increases to $15,000 for 2025, up $400 from 2024.