Rate Update: Georgia's flat income tax rate is 5.39% for 2025, down from 5.49% in 2024. Under the Tax Reduction Act, the rate decreases 0.1% annually, reaching 4.99% by 2029.
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Georgia 5.39% Flat Tax and $12,000 State Standard Deduction: Why Your Effective State Tax Rate on Gross Income Is Always Lower Than 5.39%
Georgia's flat 5.39% rate applies to taxable income, not gross income. Before the rate is applied, single filers deduct $12,000 in Georgia standard deduction, married filers deduct $24,000. This means a single filer earning $65,000 pays 5.39% on $53,000, not $65,000. The effective state tax rate on gross income for that person is only 4.40% ($2,857 / $65,000).
The deduction is separate from, and in addition to, the federal standard deduction. You get both: $14,600 federal standard deduction reducing your federal taxable income, and $12,000 Georgia standard deduction reducing your Georgia taxable income. The table below shows how effective state rates look across common income levels for single filers:
GA State Tax = (Gross − Pre-tax Deductions − $12,000 GA Std Deduction) × 5.39%
Married filers use $24,000 GA standard deduction; head of household uses $18,000.
Gross Income
GA Std Deduction
GA Taxable Income
GA State Tax
Effective Rate on Gross
$40,000
$12,000
$28,000
$1,509
3.77%
$55,000
$12,000
$43,000
$2,318
4.21%
$65,000
$12,000
$53,000
$2,857
4.40%
$85,000
$12,000
$73,000
$3,935
4.63%
$120,000
$12,000
$108,000
$5,821
4.85%
$65,000 (MFJ)
$24,000
$41,000
$2,210
3.40%
Georgia's Scheduled Rate Reductions to 4.99%: How Much Each 0.1% Drop Saves on a $65,000 Salary From 2025 Through 2029
Under Georgia's Tax Reduction Act (HB 1437), the flat rate decreases 0.1% per year from 5.49% in 2024 through 5.39% (2025) down to 4.99% in 2029. Each reduction is contingent on state revenue meeting minimum thresholds, the Georgia legislature can accelerate reductions in strong revenue years but cannot skip the triggers. For workers earning $65,000 single, each 0.1% drop saves approximately $53 per year.
By 2029 at 4.99%, a $65,000 single filer will pay $2,644 in Georgia state tax versus $2,857 at today's 5.39%, saving $213 per year compared to the 2025 rate. The table below shows the full reduction schedule and savings for a $65,000 single filer with no pre-tax deductions:
Tax Year
GA Flat Rate
GA Tax on $65K (Single)
Annual Savings vs 2025
Monthly Savings vs 2025
2025 (current)
5.39%
$2,857
–
–
2026
5.29%
$2,803
$53
$4.44
2027
5.19%
$2,750
$107
$8.89
2028
5.09%
$2,697
$160
$13.33
2029 (target)
4.99%
$2,644
$213
$17.75
Each year's rate reduction is contingent on Georgia's general revenue fund exceeding the prior year's adjusted revenue by a threshold amount. The Georgia legislature may accelerate reductions in years of strong revenue performance.
Five Georgia Paycheck Calculation Errors That Produce Wrong Take-Home Estimates
Using the federal standard deduction for Georgia state tax
Georgia uses its own standard deduction of $12,000 (single) and $24,000 (MFJ), separate from the federal $14,600 and $29,200. Applying the federal deduction to the Georgia calculation will understate your GA tax by $322 per year for a single filer earning $65,000.
Applying the 5.39% rate to full gross income instead of Georgia taxable income
The 5.39% flat rate applies after subtracting the Georgia standard deduction. A single filer grossing $65,000 does not owe $3,505 (5.39% × $65,000), they owe $2,857 (5.39% × $53,000). Skipping the deduction overstates Georgia state tax by $648 per year.
Entering monthly salary instead of annual
The salary field expects your full annual gross. Entering monthly pay and dividing will produce roughly 92% of the correct result since 12 months does not equal 52 weeks. Multiply monthly pay by 12 first.
Not accounting for the annual rate reduction when planning future income
Georgia's rate drops 0.1% per year through 2029. If you are modeling multi-year take-home, for a mortgage payment, savings plan, or offer comparison, use the rate for the year in question, not the current 5.39%. By 2029 the rate will be 4.99% if triggers are met.
Expecting this to match your exact paycheck
This calculator covers state and federal taxes only. Employer-specific items, union dues, supplemental insurance, FSA contributions, garnishments, or county-level taxes from neighboring states, are not captured. Use this as a state-and-federal baseline and verify against your actual pay stub.
Frequently Asked Questions
Georgia's flat income tax rate is 5.39% for 2025. Georgia switched from a multi-bracket progressive system to a flat tax beginning in 2024 under the Tax Reduction Act (HB 1437). The rate is scheduled to decrease 0.1% per year, reaching 4.99% by 2029, subject to revenue triggers.
Source for 2025 federal income tax brackets, standard deduction amounts, and Social Security wage base ($176,100).
HR
Hassaan Rasheed
Developer and Researcher, CalculatorFlux
Researches and verifies the formulas, methodology, and source data behind each calculator on CalculatorFlux. All tools are built and checked against the cited references before publication.
Last updated: June 2026
Georgia Tax Rates 2025
Tax
Rate
GA State Income Tax
5.39% (flat)
GA Std Ded. (Single)
$12,000
GA Std Ded. (MFJ)
$24,000
GA Std Ded. (HOH)
$18,000
Social Security
6.20%
Medicare
1.45%
SS Wage Base 2025
$176,100
2029 Target Rate
4.99%
Pro Tip
Georgia's flat tax rate is scheduled to decrease 0.1% per year through 2029. At $65,000 annual income, each 0.1% drop saves about $53 per year. By 2029 at 4.99%, you'll save roughly $213 per year compared to the current 5.39% rate, assuming the revenue triggers continue to be met.