Selling Your Patent Portfolio, Software IP, or Trademark Rights: The §453 Path

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). That maximizes the gain, which is exactly when §453 deferral matters most.

IP-sale tax wrinkles

1. 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.
2. §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.
3. Continued royalty stream vs lump sum sale. If structured as ongoing royalty post-sale, treatment differs (mixed ordinary/capital). §453 handles either.
4. Self-created intangibles have $0 basis. That maximizes the gain on sale, which is exactly where §453 deferral matters.
5. State residency at closing. Particularly important for IP sales since IP "lives" with the owner. California exit-taxation aggressive.
6. Foreign IP and US tax. If the IP was developed or held internationally, expect additional structuring layers.
7. 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, EA, IRC §453 specialist. Admitted to practice before the IRS. Placements with highly rated life insurers (A or better by A.M. Best or equivalent) in all 50 states. Free fit-check.

Find out what your property sale tax bill actually is, and what you can do about it

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Find out what your tax bill actually looks like before you sell, including the parts your CPA may not raise until the return is already being prepared.

Most people find out what they owe after the sale closes, when nothing can be changed. A short conversation now tells you the number, which layers apply to your situation, and which options are still open while the sale is still in front of you.

• What you will actually owe: federal, the 3.8% surtax, recapture and your state
• Which of those layers you can still do something about
• Whether spreading the sale changes the number in your case

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Hans Goldstein, EA
Admitted to practice before the IRS

Hans Goldstein · 213-414-2808 · Hans Goldstein: Tax & Exit Planning · This is an educational conversation, not tax advice. Bring your CPA in before you file.

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Educational. Not tax or legal advice.