Definition
A SAFE is an instrument that typically converts into equity at a future priced round. It often includes a valuation cap, a discount, or both to reward early investors.
Example
A $500k SAFE with an $8M cap converts at the cap if the priced round is above $8M.
How to use it
- Conversion price is often the better (lower price) of cap vs discount (terms vary).
- Model conversion using fully diluted shares to avoid underestimating dilution.
- Understand post-money vs pre-money SAFE mechanics before modeling dilution.
Common mistakes
- Ignoring post-money SAFE mechanics and MFN clauses (terms vary).
- Treating simplified math as legal truth without reconciling documents and cap table.
- Forgetting multiple SAFEs stack and compound dilution.
Measured as
Measure SAFE (Future Equity) with the same date, unit basis, and accounting or policy definitions used in the rest of your model.
Misused when
- Ignoring post-money SAFE mechanics and MFN clauses (terms vary).
- Treating simplified math as legal truth without reconciling documents and cap table.
- Forgetting multiple SAFEs stack and compound dilution.
Operator takeaway
- Conversion price is often the better (lower price) of cap vs discount (terms vary).
- Model conversion using fully diluted shares to avoid underestimating dilution.
- Understand post-money vs pre-money SAFE mechanics before modeling dilution.
- Tie SAFE (Future Equity) to the same balance-sheet date, scenario, and decision memo you are using elsewhere in the model.
- Document which claims, costs, or adjustments your team includes before comparing numbers across forecasts, covenants, or valuation work.
Next decision
- Quantify the impact with SAFE Conversion Calculator if you need to turn the definition into an operating assumption.
- Read SAFE conversion explained: cap vs discount, dilution, and priced-round math if the decision depends on interpretation, policy, or trade-offs beyond the raw formula.
Where to use this on MetricKit
Calculators
- SAFE Conversion Calculator: Estimate how a SAFE converts in a priced round using a valuation cap and/or discount (simplified).
Guides
- SAFE conversion explained: cap vs discount, dilution, and priced-round math: Use this guide when you need to model what a SAFE actually turns into in a financing. It covers cap vs discount, pre- vs post-money mechanics, and the dilution mistakes that surprise founders and operators.
- Fundraising & valuation hub: pre/post-money, SAFEs, notes, and liquidation prefs: A practical hub for startup fundraising and valuation basics: pre/post-money, pro rata, option pool shuffle, SAFE/note conversion, and liquidation preference outcomes.