Calculate your 2026 Alabama state income tax โ 2%, 4%, 5% brackets with the unique federal income tax deduction. One of only 3 states allowing federal tax as a state deduction.
Alabama Income Tax 2026
Alabama taxes income using three progressive brackets: 2%, 4%, and 5%. The top 5% rate kicks in at just $3,000 of taxable income (single), but Alabama's unique federal tax deduction substantially reduces effective rates for most taxpayers.
How Alabama's Federal Tax Deduction Works
AL Taxable Income = Gross โ Standard Deduction โ Personal Exemption โ Dependent Exemptions โ Federal Tax Paid
Standard Deduction: $2,500 single | $7,500 MFJ (phases out above $20K/$40K)
Personal Exemption: $1,500 single | $3,000 MFJ
Dependent Exemption: $1,000 per dependent
Example: Single filer, $75,000
Federal tax on $75,000 (single, standard ded. $15,000): approx. $9,907
AL taxable: $75,000 โ $2,500 โ $1,500 โ $9,907 = $61,093
AL tax: $500ร2% + $2,500ร4% + $58,093ร5% = $10 + $100 + $2,905 = $3,015
Without federal deduction: $75,000 โ $4,000 = $71,000 โ $3,550 AL tax
Savings from federal deduction: ~$535/year
Frequently Asked Questions
Does Alabama allow you to deduct federal income tax from state taxes?
Yes โ Alabama is one of only three states (along with Missouri and Montana) that allows taxpayers to deduct their federal income tax paid from their Alabama taxable income. This is a significant benefit that can substantially reduce your Alabama state tax liability, especially for higher earners. The federal tax paid is deducted before applying Alabama's three progressive brackets (2%, 4%, 5%).
What is the Alabama standard deduction for 2026?
Alabama's standard deduction is $2,500 for single filers and $7,500 for married filing jointly. Note that Alabama's standard deduction phases out for higher incomes โ it is reduced by 25% of income above $20,000 (single) or $40,000 (MFJ), but cannot be reduced below $2,000 (single) or $4,000 (MFJ). Most middle-income filers claim the full deduction amount.
What are Alabama's income tax brackets?
Alabama has three progressive tax brackets: 2% on the first $500 (single) or $1,000 (married filing jointly), 4% on income between $500โ$3,000 (single) or $1,000โ$6,000 (MFJ), and 5% on all income above $3,000 (single) or $6,000 (MFJ). These brackets apply to Alabama taxable income after the standard deduction, personal exemption, and federal tax deduction.
What is the Alabama personal exemption?
Alabama allows a personal exemption of $1,500 for single filers and $3,000 for married couples filing jointly. Additional dependent exemptions of $1,000 per dependent may also apply. These exemptions are deductions from income, not credits, so they reduce the amount of income subject to Alabama's tax brackets.
How does Alabama's effective tax rate compare to other states?
Alabama's top rate of 5% is moderate, but the federal tax deduction effectively lowers it significantly. For a single filer earning $80,000, the federal deduction reduces Alabama taxable income by roughly $10,000โ$12,000, saving over $500 in state tax. Alabama also has no local income taxes statewide (except Birmingham), making the true burden lower than the nominal rates suggest.