Royalties, milestones, equity in lieu and anti-stacking
Core idea#
A university or lab licence (playbook 2.07) has a set of economic terms: what the company pays, when, and for what. Founders tend to fixate on the royalty rate. Investors look at the whole package : upfront fees, annual payments, milestones, royalties, the share of sublicensing income, patent cost reimbursement and equity. Each term moves money at a different time, and the timing matters more than the headline rate for a startup that won't have revenue for years.
The principles:
- Pay later, not now. Cash before revenue is the most expensive money a startup spends. Favour terms that bite when the company can pay.
- Trade terms against each other. Universities often accept lower royalties for equity, or lower upfront fees for later milestones.
- Model the total burden on a real product, including other licences you'll need. A 3% royalty that's fine alone can be fatal stacked with three others.
- Know the benchmarks for your sector and country, so you can tell a fair offer from an outlier.
Who it's for: founders negotiating or reviewing a licence, option or assignment from a university, institute or government lab.
Benchmarks#
United States#
Gunderson Dettmer's analysis of university licences to venture-backed startups found (Gunderson Dettmer, 2024):
- Royalty: median 2.38% where the licence has an anti-stacking clause, 1.75% where it doesn't; royalties are usually on net sales and often tiered.
- Anti-stacking: present in 65% of licences, typically letting the licensee reduce its royalty by 50% of amounts paid to third parties, down to a 50% floor. Sublicensing income: shared with the university in 94% of licences.
- Equity: average grant 4.00%, with anti-dilution protection in 83% of licences with equity, typically until about $10 million is raised.
Published "express" licences show typical shapes. Cornell's FastTrack licence for medical devices offers 2.5% of net sales without anti-stacking, or 4% with anti-stacking (potentially down to 2%), milestones of $75,000 at regulatory clearance and $150,000 at $30 million cumulative sales, and annual fees starting at year five (Cornell). Tulane's licence for therapeutics and devices offers 2% of net sales without anti-stacking or 3% with, and either 15% of non-royalty sublicence income with royalty pass-through or 25% of all sublicence income without (Tulane).
Across fields, reported university royalty rates span roughly 1% to 10% of net sales, with low-to-mid single digits most typical for an early-stage invention (CASRAI).
United Kingdom#
The USIT Guide, developed by leading UK university TTOs and investors, proposed a landing zone of 10% to 25% university equity and a 0% to 5% royalty depending on the technology's maturity (Cambridge Enterprise). For software spinouts, the USIT for Software Guide recommends 5% to 10% university equity and 0% to 2% royalties (Imperial College). Average UK university stakes fell to 16% for deals in 2024–25 (20% life sciences, 14% hardware) (CASRAI on RAEng).
India#
Terms are set by each institute's IP and startup policy, and often combine a small equity stake with a royalty or revenue share, sometimes letting founders choose between them. For example, IIT Kanpur's faculty policy has offered liability-free equity in return for permission to use institute IP (IIT Kanpur), and newer policies (such as IIT Kharagpur's 2026 policy) set specific equity-based licensing options (playbook 2.11). Ask your institute for its current schedule; many are negotiable for spinouts.
Each term, and what to ask for#
| Term | What it is | Startup-friendly version |
|---|---|---|
| Upfront licence fee | A one-off payment at signing | Small or zero; deferred to the first financing or replaced by equity |
| Term | What it is | Startup-friendly version |
|---|---|---|
| Patent cost reimbursement |
Repaying the institution's past patent costs, and paying future ones |
Past costs deferred or paid in instalments; future costs limited to agreed countries (2.05) |
| Annual fee or minimum royalty |
A yearly payment, often creditable against royalties |
Zero for the first 3–5 years, then modest, and creditable against royalties |
| Milestone payments | Paid on events: financing, regulatory approval, first sale, sales thresholds |
Tied to events that bring cash in (a sales threshold, an approval), not to time |
| Running royalty | A percentage of net sales of licensed products |
Low single digits; tiered; on the licensed component, not the whole system; with anti- stacking |
| Sublicence income share | The institution's share of what you earn by sublicensing |
A declining share over time or as the company adds value; exclude investment and R&D funding |
| Equity | Shares for the institution in place of some cash terms |
Small, with anti-dilution only up to a modest funding threshold, ending at the first priced round |
| Change-of-control or assignment fee |
Payment if the company is sold or the licence transferred |
Avoid, or keep small and fixed (playbook 2.09) |
Definitions that matter more than the rate#
- "Net sales": sales minus returns, discounts, taxes, freight and similar deductions. Check what's deducted.
- "Licensed product": only products covered by a valid claim of the licensed patents, or anything "using" the technology? The narrower, the better for the company. Royalty base for systems: if the patent covers one component of a larger system, royalty should apply to the component's value (or a reduced rate), not the whole system price.
- Royalty term: royalties should end when the last valid patent claim covering the product expires in that country.
Equity in lieu#
Many institutions take equity instead of some cash, which suits cash-poor startups. Points to agree:
- The amount and whether it replaces royalties, fees or both (2.11).
- Anti-dilution: universities often ask to keep their percentage until a funding threshold; Gunderson's data shows a median threshold of about $10 million (Gunderson Dettmer). Keep it low and time-limited; it dilutes the founders.
- Rights: standard minority rights only; no special vetoes.
Anti-stacking and the total royalty burden#
What stacking is#
A product often needs several licences: the core university patent, a second university's patent on a component, a commercial licence for a manufacturing step. Each takes a royalty. Together they can exceed what the product's margin can bear.
What an anti-stacking clause does#
It lets you reduce the royalty you pay one licensor by part of what you pay others for IP you need, usually down to a floor. A common US version lets the licensee cut the university royalty by 50% of third-party royalties, but by no more than half (Gunderson Dettmer; Goodwin). Universities sometimes set a higher headline rate in return, as the Cornell and Tulane licences show.
A rule of thumb for checking the burden#
One long-standing heuristic is that a licensor should get about a quarter of the product's profit: with a 20% profit margin, a 5% royalty (Guide to Biotech Startups). Courts no longer accept the "25% rule" as a method, but it remains a quick sense check of whether the total burden leaves room for a business.
Worked example (illustrative)#
A medical device company will sell a monitor at $10,000 with a 60% gross margin and a 15% operating margin at scale. It needs three licences:
| Licensor | Headline royalty |
With anti-stacking |
|---|---|---|
| University A (core sensor patent) | 4% | Reduced by 50% of other royalties, floor 2% |
| University B (signal-processing patent) |
2% | No anti-stacking |
| Company C (coating process) | 1.5% | No anti-stacking |
- Without anti-stacking: 4% + 2% + 1.5% = 7.5% of net sales, which is half the operating margin.
- With University A's clause: other royalties total 3.5%, so A's royalty falls by 1.75 points, to 2.25% (above the 2% floor). Total: 2.25% + 2% + 1.5% = 5.75% .
The company also negotiates for A's royalty to apply only to the sensor module (valued at 40% of the device price), not the whole monitor. A's effective rate on the device becomes 2.25% × 40% = 0.9%, and the total burden falls to about 4.4% of device net sales. Investors find that much easier to accept.
Negotiating scripts#
Moving cash to later#
"We can't pay a meaningful upfront fee before we've raised. Could we replace it with a payment due at our first priced round, or a slightly higher milestone at first commercial sale? That way you're paid when there's money to pay with."
Asking for anti-stacking#
"Our product will likely need [N] other licences, including [examples]. Without an anti-stacking clause the total royalty could reach [X]%, which investors will see as a risk. Could we include the standard 50% offset with a floor? We'd accept a slightly higher headline rate in return."
Narrowing the royalty base#
"The patent covers the sensor, which is about 40% of the device's value. Could the royalty apply to the sensor module's value, or be set at a rate that reflects that share?"
Trading royalty for equity#
"We'd prefer to give you more upside through equity and keep the running royalty low, because royalties reduce our margin for the life of the product. Would [X]% equity with a [Y]% royalty work instead of [Z]% royalty alone?"
Common mistakes#
- Negotiating the royalty rate in isolation. Model the whole package and the timing. Agreeing early annual minimums that drain cash before revenue.
- Royalty on the whole system when the patent covers one part.
- No anti-stacking in a field where you'll need several licences.
- Broad "licensed product" definitions that charge royalties on things the patent doesn't cover.
- Sublicence income definitions that include investment money or research funding. Long anti-dilution for the university's equity.
- Not checking published express licences for your institution; they show what's normal.
Related playbooks#
- 2.03 Working with the tech transfer office
- 2.07 Licence anatomy
- 2.09 Sublicensing and change of control
- 2.10 Negotiating with a university
- 2.11 Spinout equity norms
Sources#
- Gunderson Dettmer, University license presentation (2024).
- Cornell, FastTrack licence for medical devices; Tulane, Go Green licence.
- CASRAI, royalty rate methodology, anti-stacking and MFN clauses, licensing examples.
- Goodwin, 10 issues licensing technology from universities; Guide to Biotech Startups, licensing from universities.
- UK: Cambridge Enterprise, USIT Guide landing zone; Imperial, USIT for Software; CASRAI, RAEng 2026 Spotlight on Spinouts.
- India: IIT Kanpur Faculty Entrepreneurship Policy.
Worked example is illustrative. Not legal advice. Last checked November 2026.