Georgia’s flat income tax rate is 5.19% for tax year 2026 under the standing phase-in schedule, and the legislature has passed a bill to move directly to the 4.99% floor for the same year.1Department of Revenue. Important Tax Updates The rate applies to every dollar of Georgia taxable income after deductions, no matter how much you earn. Check the Georgia Department of Revenue site before filing to confirm which rate your return uses, since the governor’s signature date controls when the acceleration takes effect.
Where the Rate Is Headed
Georgia replaced its old graduated brackets (which ran from 1% to 5.75%) with a single flat rate starting in 2024.2Georgia House of Representatives. Tax Reform Update The rate has stepped down a tenth of a point each year since: 5.39% in 2024, 5.29% in 2025, and 5.19% in 2026 before the recent acceleration bill.3Justia. Georgia Code 48-7-20 – Individual Tax Rates
The schedule is designed to keep dropping until it reaches 4.99%, but the cuts are not automatic. Three revenue and reserve-fund conditions have to be met each year, and if any one of them fails as of December 1, the next scheduled reduction gets pushed back a year.3Justia. Georgia Code 48-7-20 – Individual Tax Rates Once the rate reaches 4.99%, no further reductions are built into current law.
How the Rate Applies to Your Income
Your Georgia taxable income starts with your federal adjusted gross income.4Justia. Georgia Code 48-7-27 – Computation of Taxable Net Income Every above-the-line deduction you claimed federally (retirement contributions, student loan interest, the deductible half of self-employment tax) already reduces the number Georgia starts with. From that federal AGI, you subtract either the Georgia standard deduction or Georgia itemized deductions, then any dependent exemptions. The flat rate applies to what’s left.
Standard Deduction
HB 1437 roughly doubled the state standard deduction when the flat tax took effect:5Department of Revenue. Georgia Standard Deductions Increases
- Single, head of household, or married filing separately: $12,000
- Married filing jointly: $24,000
Georgia itemized deductions mirror the federal categories. If your mortgage interest, property taxes, and charitable giving exceed the standard amount for your filing status, itemizing on your state return may lower your bill even if you take the standard deduction federally. You are not required to make the same choice on both returns.
Dependent Exemption
The old personal exemptions for the taxpayer and spouse were absorbed into the larger standard deduction. Georgia still allows a per-dependent exemption, which the 2026 legislature raised from $4,000 to $5,000 per qualifying dependent. Scheduled increases of $125 a year are set to carry it to $6,000, subject to the same type of economic thresholds that govern the rate cuts. A married couple filing jointly with two children shelters $34,000 of income between the joint standard deduction and the dependent exemptions before any itemizing.
The Retirement Income Exclusion
Georgia’s retirement income exclusion can wipe out most or all of your state tax liability once you turn 62. It covers pensions, annuities, interest, dividends, rental income, capital gains, and royalties, plus up to $5,000 in earned income.4Justia. Georgia Code 48-7-27 – Computation of Taxable Net Income
- Age 62 through 64, or permanently disabled: up to $35,000 per taxpayer
- Age 65 and older: up to $65,000 per taxpayer
The exclusion is per taxpayer, so a married couple both 65 or older can exclude up to $130,000 combined. Social Security benefits are fully exempt from Georgia income tax and sit on top of the retirement exclusion.
Who Owes the Flat Rate
Full-year residents owe the flat rate on all income regardless of where it was earned. Part-year residents owe it on income earned while living in Georgia. Non-residents owe it on Georgia-source income, including rent from Georgia property, business operations in the state, and services performed in Georgia.3Justia. Georgia Code 48-7-20 – Individual Tax Rates
Estates and trusts pay the same flat rate on Georgia taxable income, with the fiduciary filing and paying on behalf of the entity. Partnership and S-corporation income passes through to the owners’ personal returns and gets taxed at the flat rate there.3Justia. Georgia Code 48-7-20 – Individual Tax Rates There is no separate business income bracket or surcharge.
Deadlines and Estimated Payments
Georgia individual returns are due April 15, matching the federal deadline.6Department of Revenue. Taxes for Individuals Interest and penalties start the next day on any unpaid balance.
If you’re self-employed or your withholding doesn’t cover the year’s tax, you need quarterly estimated payments. Georgia charges 9% annual interest on underpayments.7Justia. Georgia Code 48-7-120 – Failure by Taxpayer to Pay Estimated Tax You avoid the penalty if your estimated payments total at least 100% of last year’s tax liability or at least 70% of the current year’s, whichever is less. Quarterly dates follow the federal schedule: April 15, June 15, September 15, and January 15 of the following year.
How It Interacts with Your Federal Return
Georgia income tax you pay is deductible on your federal return if you itemize, but only up to the SALT cap. For 2026, that cap is $40,400 for most filers and $20,200 if you’re married filing separately. Combined Georgia income tax, property taxes, and local taxes above that ceiling don’t produce any federal offset.
The Georgia standard deduction ($12,000 single, $24,000 joint) is lower than the federal standard deduction ($16,100 single, $32,200 joint for 2026).8Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026 If your deductible expenses fall between the two thresholds, taking the federal standard deduction and itemizing on Georgia can produce the lowest combined bill. Run the math both ways before you file.