If you picked your incorporation state a few years ago based on corporate tax rates, your math is stale. Effective January 1, 2026, four states cut their corporate income tax rates, continuing a multi-year downward trend that has left the average top state corporate rate around 6.5% and the lowest — North Carolina — at a flat 2%.
The Four Cuts at a Glance
| State | 2025 Rate | 2026 Rate | Structure |
|---|---|---|---|
| North Carolina | 2.25% | 2.00% | Flat, on track to 0% by 2030 |
| Nebraska | 5.20%* | 4.55% | Flat (was graduated; now single rate) |
| Georgia | 5.39% | 5.19% | Flat |
| Pennsylvania | 7.99% | 7.49% | Flat, continuing annual 0.5-point step-down |
*Nebraska's top graduated rate was 5.84% before its flat-rate conversion; the comparable 2025 flat-equivalent was about 5.20%.
Forty-four states levy a corporate income tax; six do not (Nevada, Ohio with its CAT, South Dakota, Texas with its margin tax, Washington with its B&O, and Wyoming). Top rates still range from North Carolina's 2% to New Jersey's 11.5%, so the dispersion remains wide — but the direction is clearly down.
Why These Four Matter More Than the Points Suggest
North Carolina's glide path to zero. The 2% rate is not a one-off cut. North Carolina has been stepping down annually since 2013 (from 6.9%) under legislation that eliminates the corporate income tax entirely by 2030 if revenue targets are met. For a profitable C corporation planning a 5-to-10-year horizon, North Carolina is pricing in a 0% future — a meaningful input to discounted cash-flow models for location decisions.
Nebraska's simplification. Nebraska converted from a graduated corporate tax to a flat rate in 2024 and has been cutting that flat rate annually. The 4.55% flat rate removes bracket management and makes Nebraska competitive with neighboring Iowa and Missouri for regional headquarters.
Georgia's steady trim. Georgia moved from a flat 5.75% to 5.39% in 2024 and 5.19% in 2026 as part of a broader income-tax reform that also cut individual rates. For pass-through businesses that pay at the individual level, the combined effect is larger than the corporate headline.
Pennsylvania's long descent. Pennsylvania started at 9.99% — one of the nation's highest — and is cutting a half-point per year until it reaches 4.99% in 2031. At 7.49% in 2026, it is still above average, but businesses that wrote off Pennsylvania two years ago should rerun the model.
What the Cuts Do Not Do
A corporate rate cut does not eliminate:
- Nexus. You owe corporate income tax where you have nexus — physical presence, employees, or exceeding economic thresholds — not just where you incorporate. Incorporating in North Carolina while operating in New Jersey does not give you North Carolina's 2% on New Jersey-source income. Apportionment still allocates income to where the business activity occurs.
- Franchise, gross-receipts, or margin taxes. States like Texas and Nevada appear to have "no corporate income tax" but impose margin or commerce taxes that can exceed a low-rate income tax for high-volume, low-margin businesses.
- Individual-level tax for pass-throughs. S corporations, partnerships, and LLCs taxed as disregarded entities generally pay at the owner's individual rate. A state that cuts its corporate rate but not its individual rate gives no direct benefit to a pass-through — though Georgia and Nebraska cut both.
- Local taxes. Some states allow cities or counties to levy income or business taxes on top of the state rate.
In short, the statutory rate is one variable in an apportionment formula, not a flat tax on total profit.
How to Model the Decision
If you are choosing where to locate a new entity or whether to re-domesticate an existing one, build a three-scenario model:
- Apportionment-weighted effective rate. Estimate the share of sales, payroll, and property in each state under that state's apportionment formula (most states now use single-sales-factor). Multiply by each state's rate to get a blended effective rate.
- 5-year horizon with scheduled cuts. North Carolina to 0% and Pennsylvania to ~5.5% by 2030 change the answer versus a single-year snapshot. Discount future tax savings at your cost of capital.
- Non-tax costs. Annual report fees, franchise taxes, registered-agent costs, and the legal cost of re-domestication often exceed a 1-point rate difference for smaller businesses. A Delaware corporation operating entirely in Georgia may already have the right structure — adding a North Carolina subsidiary for apportioned income may beat reincorporating.
Run the model in plain-text. Track state effective rates as assumptions, apportionment factors as inputs, and tax expense as a computed output so the board can see sensitivity to a 0.5-point change — because that is exactly what 2026 delivered in Pennsylvania.
Simplify Your Financial Management
State tax is not a one-time filing choice; it is a recurring apportionment calculation that touches every invoice, payroll run, and asset purchase. Beancount.io keeps income, payroll, and property by state in version-controlled books — so when Georgia trims another 0.2 points next year, your effective-rate model updates with a single assumption change. Get started for free and stop guessing where your next dollar is taxed.