Common categories
State business license, city business license, professional license (CPA, attorney, real estate, contractor), industry-specific permits (food service, alcohol, tobacco, transportation), trademark and copyright filing fees, annual LLC franchise tax (in some states), Secretary of State annual report fees.
Where it goes
Schedule C line 23 ("Taxes and licenses") is the standard placement for licenses and regulatory fees. Some prefer line 17 ("Legal and professional services") for professional licensure (legal/accounting bar dues, real estate license renewal). Either is acceptable.
Initial license vs renewal
A renewal of an existing license is currently deductible. The initial cost to obtain a license that has a useful life beyond the current year may need to be capitalized and amortized over its useful life — but most professional licenses renew annually and are deductible.
State franchise taxes
States like California, Texas, Delaware, and others impose annual franchise taxes on entities doing business in or formed in the state. These taxes are deductible business expenses. The federal SALT cap on Schedule A does not apply to entity-level franchise taxes deducted by the entity.
Penalties not deductible
Penalties for late renewal of a license, late filing of an annual report, or other regulatory violations are not deductible. Interest charges may be deductible.
Documentation that survives an exam
An IRS examination of this deduction will request three things: proof of payment (bank or card statement), proof of the underlying transaction (invoice or receipt), and proof of business purpose (a contemporaneous note or calendar entry). The first two are usually trivial to produce; the third is where most filers fall short. Capturing business purpose at the moment of the expense — a one-line note in your bookkeeping software or a category and memo on the receipt-capture app — converts a generic charge into a documented deduction that will withstand scrutiny three to six years later when memory has faded.
Worked example with numbers
Consider a sole prop with $100,000 in gross receipts and $30,000 in legitimate Schedule C deductions, including this category. Each additional $1,000 of qualifying expense reduces Schedule C net profit by $1,000, which reduces self-employment tax by approximately $1,000 × 92.35% × 15.3% ≈ $141, and reduces income tax by $1,000 × marginal rate. At a 22% federal marginal rate, the combined federal tax savings on each additional $1,000 of legitimate deduction is roughly $361, and state savings sit on top of that. The math is why disciplined categorization throughout the year pays for itself.