Fundraising & Investors

How do stacked SAFEs at different caps convert into a mess at my priced round?

A starting point

Every SAFE you sign at a different cap converts to equity at the priced round, and if you've raised on three or four caps over 18 months you can end up giving away far more than you think because the low-cap money converts into a large slice. Model the full cap table before you sign each new SAFE, not after, and treat every SAFE as real dilution today rather than a problem for future you. Founders routinely wake up at Series A owning 15 points less than they assumed because they never stacked the conversions.

Go deeper

Hand-picked from around the web, each with a note on why it earns your time.

3 resources 2 link-checked Read Use

Read

📄 Article
✓ Link checked Free Intermediate

Why we picked it This is the worked walkthrough the question demands, not theory. It runs the exact scenario you fear: two SAFEs at different caps ($500K at $10M cap and $500K at $5M cap) converting at a $20M Series A, and shows the low-cap money buying twice the shares per dollar (1M shares vs 500K) so founders land ~3 points more diluted for the same money raised. It walks the conversion price math per SAFE, covers cap vs discount (investor takes whichever gives more shares), and hammers the point that the terms, not the dollars, are what dilute you. Free, no paywall, and specific enough to copy the numbers into your own model.

How SAFE Notes Impact Founder Dilution and Startup Equity

From Kruze Consulting by Kruze Consulting 18 min read

  • A low-cap SAFE converts to more shares per dollar, so $500K at a $5M cap costs you far more equity than $500K at a $10M cap even though it is the same cash
  • Each SAFE converts independently at its own cap or discount, whichever gives the investor more shares, so stacking compounds silently
  • The dilution is set the day you sign, not at the priced round, which is why you model the whole stack before signing the next one
Open kruzeconsulting.com →
📄 Article
✓ Link checked India Free Intermediate

Why we picked it A practising senior partner spells out exactly why a raw US SAFE is dangerous for an Indian entity: it can be treated as a 'deposit' and trigger a FEMA or Companies Act violation, a landmine that only detonates when you reach Series A. It then names the compliant substitutes (iSAFE via CCPS or CCD, and the DPIIT convertible note) so you know what to actually ask your lawyer to paper.

Convertible Notes and SAFE Notes in India: The Dilemma

From Bar & Bench by Madhavan Srivatsan 10 min read

  • A US-form SAFE is not recognised in Indian law and can be recharacterised as a 'deposit', exposing the company under FEMA and the Companies Act
  • The compliant SAFE substitute is an iSAFE structured as CCPS/CCD that compulsorily converts on a qualifying round, avoiding any redemption feature
  • The convertible note route is open only to DPIIT-recognised startups, with a 25 lakh minimum per investor and a 10-year conversion or repayment clock
Open barandbench.com →

Use

🛠️ Tool
Free Intermediate

Why we picked it This is the modeling tool to actually stack your conversions before you sign, which is the whole opinionated answer. You enter each SAFE (pre-money or post-money, its cap, its discount) plus your fully diluted share count and a hypothetical priced-round valuation, and it converts every instrument at once and shows the founder and option-pool dilution that falls out. It handles the exact case founders get wrong: multiple SAFEs at different caps interacting, rather than a single clean instrument. Run it at several Series A valuations and you see the 15-point surprise before it happens instead of at the closing table. (Page was live but blocked our automated fetch, so verify the URL yourself.)

SAFE and Convertible Note Calculator

From Carta by Carta free tool

  • Model the full stack of SAFEs converting together, not one SAFE in isolation, since low caps quietly enlarge each other's slices
  • Pre-money and post-money SAFEs dilute differently: post-money guarantees the investor a fixed slice and pushes all the surprise onto founders and the pool
  • Stress-test at multiple Series A valuations, because a lower priced round makes low-cap SAFEs convert into an even bigger share
Open carta.com →

People also ask

What is a SAFE and how does it actually work? A SAFE (Simple Agreement for Future Equity) lets an investor give you money now in exchange for equity later, when you raise a priced round, withou... Beginner 3 resources → What's the difference between a valuation cap and a discount on a SAFE? A cap sets the maximum valuation at which your SAFE converts, protecting the investor's upside if you raise your next round at a high price; a disc... Intermediate 3 resources → How is my startup's valuation actually decided at the early stage? At seed there's no spreadsheet truth; valuation is set by market comps, your traction, the strength of the team, and mostly by supply and demand fo... Intermediate 3 resources → What do the key terms in a term sheet actually mean? Term sheets split into economics (valuation, option pool, liquidation preference) and control (board seats, protective provisions, voting). The sca... Advanced 3 resources → How do SAFEs and term sheets differ in India versus the US? India can't use the plain US SAFE directly because of company-law constraints, so founders use the iSAFE (structured as compulsorily convertible pr... Advanced 3 resources → How much dilution should I expect across seed and Series A? Plan for roughly 10-20% dilution per priced round plus the option pool, and remember that stacked SAFEs at different caps all convert at once and c... Intermediate 3 resources →