Corporate income and franchise tax
Many states follow the federal determination, but several require their own filing, and some impose a franchise or business-privilege tax that exemption does not automatically remove.
State Compliance
Your IRS determination letter exempts you from federal income tax. It does not, on its own, exempt your organization from state taxes. Those are separate applications, filed with separate agencies, under rules each state writes for itself.
State Tax Exemption
Flat fee per state • state filing fee billed at cost
This is the point most founders miss. A 501(c)(3) determination letter addresses federal income tax. Whether your organization also escapes state corporate income tax, sales and use tax, or property tax is decided state by state — sometimes automatically on the strength of your federal letter, sometimes only after a separate application, and sometimes not at all.
Getting this wrong is expensive in a quiet way. Organizations routinely pay sales tax they did not owe for years, or discover a franchise tax liability during a grant audit.
Which of these exist, and how you obtain them, depends entirely on the state.
Many states follow the federal determination, but several require their own filing, and some impose a franchise or business-privilege tax that exemption does not automatically remove.
Often the most valuable exemption and the most variable. Some states exempt purchases, some exempt sales, some both, some neither. Certificates typically expire and must be renewed.
Usually administered at county rather than state level, and usually tied to how the property is actually used rather than who owns it. Deadlines are frequently annual and unforgiving.
There is no national process here. Each state writes its own rules, its own forms, its own fees, and its own exemptions — and they change. What one state grants automatically, the next requires you to apply for, and a third may not offer at all.
That is why this is quoted per state. Tell us where you operate and we will tell you what actually applies there.
Not by itself. The IRS determination addresses federal income tax. State-level exemptions are separate and are granted by state agencies under state law. Some states rely on your federal letter; others require a full application.
For most organizations, sales and use tax exemption delivers the clearest savings, because it applies to everyday purchases. But the right answer depends on your state, your budget, and whether you own property.
Frequently, yes. Sales tax certificates in particular often carry fixed terms and must be renewed. Missing a renewal can mean paying tax you were entitled to avoid.
Each state is a separate analysis and a separate filing, quoted at $500 per state plus that state’s fee. We will tell you candidly where registration is genuinely required and where it is not.
It varies by state and by exemption type, and some states charge nothing at all. We confirm the exact figure before filing and bill it at cost.
Tell us where your organization operates and we will map the exemptions available to you.