Selling Your Patent Portfolio, Software IP, or Trademark Rights — The §453 Path
Patent buyers — RPX Corporation, IPwe, Marathon Patent Group, Allied Security Trust, Open Invention Network, Intellectual Ventures — plus strategic operating company acquirers pay seven and eight figures for valuable portfolios. Software IP, brand-licensing rights, copyright catalogs, and trademark portfolios all have their own buyer ecosystems.
Buyer cash → Assignment Co. → A-rated carrier → You, on schedule
IRC §453 spreads the capital gain across years. IRC §1235 governs the capital-gain character of patent sales by holders.
The math — $5M patent portfolio sale, low basis
Assumes self-created IP (zero basis) — maximizes the gain, which is exactly when §453 deferral matters most.
IP-sale tax wrinkles
- IRC §1235 capital gain treatment for patents. Inventors who held patents 5+ years (or qualifying transfers under §1235) qualify for capital gain on sale (vs ordinary income). Critical character distinction.
- §1221 vs §1235 character. Trademarks may not qualify for full capital gain under §1235; depending on character and use, may be partially or fully ordinary income.
- Continued royalty stream vs lump sum sale. If structured as ongoing royalty post-sale, treatment differs (mixed ordinary/capital). §453 handles either.
- Self-created intangibles have $0 basis — maximizes the gain on sale, which is exactly where §453 deferral matters.
- State residency at closing. Particularly important for IP sales since IP "lives" with the owner. California exit-taxation aggressive.
- Foreign IP and US tax — if the IP was developed or held internationally, additional structuring layers.
- Trademark licensing royalty interests vs trademark sale — different §453 fits.
Common IP-sale fits for §453
- Inventor selling patent portfolio to operating company or patent aggregator
- Software company spinning off non-core IP
- Brand-licensing rights sale (apparel, character licensing, sports)
- Copyright catalog sale (separate from music — see sell music catalog)
- Trademark portfolio sale
- Patent monetization via assertion entity sale
When this fits
- $1M+ sale (carrier minimum)
- Inventor or owner held IP 5+ years (§1235 qualified for patents)
- Buyer's counsel willing to paper the assignment
- Capital gain character (not ordinary income on royalty stream)
When it doesn't
- IP under 5-year holding (§1235 may not apply, ordinary income)
- 100% rollover into acquirer's equity
- Sale under $1M
How I work
Hans Goldstein, IRC §453 specialist. an A-rated Fortune 500 carrier / an A-rated Fortune 500 carrier / an A-rated Fortune 500 carrier / an A-rated Fortune 500 carrier — 50 states. Free fit-check.
📘 Get the free Seller's Guide to §453 + a fit-check
A plain-English guide for sellers: how a structured installment sale defers the tax when you sell a business, practice, or property — the math, the alternatives, and how to know if your deal fits.
Drop your info — instant PDF download + within 1 business day Hans will email a preliminary read on which structure fits your deal. No retainer. Carrier compensates the broker — not you.
📞 Hans Goldstein · 470-329-8049 · CA Insurance License #4322192 · Independent §453 specialist · Goldstein & Co. LLC
Educational. Not tax or legal advice.
Run your specific numbers
The calculator runs your sale through real 2026 federal + state tax brackets and shows §453 savings vs lump sum side-by-side.
Run the calculator → 470-329-8049