Patents, Copyrights, and Royalties: How IP Income Is Taxed
How creating, buying, licensing, and selling intellectual property is taxed, why the creator and the buyer get different answers, and where royalties land on the return.
Reviewed by the Fairlight Accounting cross-border tax team — U.S. & Canadian Tax Desks
Intellectual property is taxed according to how it was created, used, and sold. Development costs are deducted as research costs or capitalized; trademarks, and patents and copyrights bought with a business, are amortized over 15 years; royalties from licensing are ordinary income; and a sale of a patent by its inventor can be long-term capital gain.
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How is each stage taxed?
| Stage | Treatment |
|---|---|
| Developing the IP | Research costs deductible under Section 174A (domestic); software development included; the costs of obtaining a patent, such as attorney fees to prepare and perfect the application, count as research expenditures too |
| Buying IP | Amortized over 15 years as a Section 197 intangible when acquired with a business (trademarks and trade names always); patents and copyrights bought separately are not Section 197 intangibles and are depreciated over their remaining useful life, or deducted as paid if the price is a per-use or percentage-of-revenue amount paid at least annually |
| Licensing IP out (royalties) | Ordinary income — business income if licensing is your business, otherwise royalty income on Schedule E |
| Licensing IP in | Royalties paid are deductible as paid; lump-sum license fees amortized over the license term |
| Selling a patent (inventor or a financing individual) | Long-term capital gain under Section 1235, regardless of holding period, if all substantial rights are transferred |
| Selling a self-created copyright, book, or artwork | Ordinary income to the creator (not a capital asset in the creator's hands), except that the creator of a musical work can elect capital treatment under Section 1221(b)(3) |
| Selling purchased IP | Section 1231 (capital) gain if used in the business and held over a year, with amortization or depreciation recaptured as ordinary income |
| Selling a trademark or franchise while keeping significant control | Ordinary income — Section 1253 denies sale-of-capital-asset treatment, and payments contingent on use are ordinary in any case |
What is the difference between a license and a sale?
A sale transfers all substantial rights — exclusive, for the full remaining term, in all fields. A transfer that keeps a field of use, a territory within the country, or a term shorter than the IP's life is a license, and the payments are royalties, even if paid as a lump sum. For a patent, Section 1235 keeps capital gain treatment even when the payments are made periodically over the buyer's use or are contingent on the patent's productivity, use, or disposition — as long as the holder transfers all substantial rights to an unrelated buyer.
Are royalties subject to self-employment tax?
Royalties from a trade or business — an author's ongoing writing business, an inventor who regularly develops and licenses — are self-employment income. Royalties from a one-time creation or investment property generally are not, and are reported on Schedule E.
What about IP held in a separate entity?
Owners sometimes hold IP in a separate LLC that licenses it to the operating company, for liability or sale reasons. The royalties must be at arm's length, the operating company deducts them, and the IP company reports them; if the owners are the same, the net federal income tax effect is often close to zero and the structure is about protection and exit, not tax.
Frequently asked questions
Can I deduct the cost of registering a trademark?
Registration costs are capitalized and amortized over 15 years as a Section 197 intangible once used in business.
Is a domain name intangible property?
Yes; a domain bought from another owner for use in the business is capitalized and, when it functions as a trademark or serves an existing website, amortized over 15 years under Section 197 (IRS Chief Counsel Advice 201543014); routine renewal fees are deductible.
Are foreign royalties subject to withholding?
Royalties paid to or from abroad are generally subject to withholding, reduced by treaty — the Canada–U.S. treaty exempts some royalties entirely.
Does the research credit apply to IP development?
Yes, for qualifying research activities, separately from the deduction.
Official sources
The IRS explains: “The transfer of a patent by an individual is treated as a sale or exchange of a capital asset held longer than 1 year. This applies even if the payments for the patent are made periodically during the transferee’s use or are contingent on the productivity, use, or disposition of the patent.” — Internal Revenue Service, Publication 544 (2025), Sales and Other Dispositions of Assets, https://www.irs.gov/publications/p544
The statute provides: “A transfer (other than by gift, inheritance, or devise) of property consisting of all substantial rights to a patent, or an undivided interest therein which includes a part of all such rights, by any holder shall be considered the sale or exchange of a capital asset held for more than 1 year” — Legal Information Institute, Cornell Law School, 26 U.S. Code § 1235 - Sale or exchange of patents, https://www.law.cornell.edu/uscode/text/26/1235
Next step
Fairlight Accounting handles U.S. domestic, cross-border (U.S.–Canada), and international tax returns, plus bookkeeping, payroll, and CFO advisory. Our U.S. Tax Desk structures IP licenses and sales so the character of the income is settled before the contract is signed. See pricing or book a free fit call.
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