Pre-money is what the company is agreed to be worth before new investment; post-money is that plus the money invested. Which one a quoted valuation refers to changes how much of the company the founder keeps, so it is always worth asking.
Why it matters
Two investors can quote the founder the exact same headline number — "we're investing at a ten
million valuation" — and mean genuinely different things by it, and the difference changes how
much of the company the founder ends up owning. Pre-money is what the company is worth before the
new money arrives. Post-money is that figure plus the money being invested. A round described
loosely as "at ten million" could mean either, and a founder who does not ask which one is quietly
accepting whichever answer favours the investor.
How it works
The relationship is simple arithmetic, but it is worth working through with round numbers,
purely as an illustration of the mechanism rather than a benchmark for any real round.
Example. Suppose a company is valued at eight million dollars pre-money, and an investor puts
in two million dollars. Post-money valuation is pre-money plus the investment: eight million plus
two million equals ten million. The investor's two million dollars now represents two-tenths, or
twenty percent, of that ten-million post-money company.
Now suppose instead the deal is described as "ten million post-money" with the same two-million
investment. Pre-money in that case is ten million minus two million, or eight million — the same
numbers, just anchored from the other direction. The confusion arises when a headline number is
quoted without saying which one it is: "we're doing this round at ten million" could describe
either an eight-million or a ten-million pre-money company, and the investor ends up owning a
different percentage in each case.
Every valuation conversation should specify pre-money or post-money explicitly. When it does not,
the safest assumption for a founder is to ask, because the ambiguity resolves in exactly one
direction if nobody does.
Questions people ask
- What is the difference between pre-money and post-money valuation?
- Pre-money is what the company is agreed to be worth before the new investment is added. Post-money is pre-money plus the amount being invested. The same investment produces a different ownership percentage for the investor depending on which figure the headline valuation actually refers to.
- Why does pre-money versus post-money matter to a founder?
- It changes how much of the company the founder keeps after the round closes. A round quoted as ten million without specifying pre- or post-money could mean the founder gives up a meaningfully different slice of the company, so the ambiguity is worth resolving before agreeing to anything.
- How do you calculate post-money valuation?
- Post-money valuation equals the pre-money valuation plus the amount of new money being invested in that round. An investor putting in two million against an eight-million pre-money valuation results in a ten-million post-money company, with the investor owning the portion their cash represents of that total.
See also
More in Fundraising
- Bridge round — A short raise meant to carry the company to a larger round or to an exit.
- Convertible note — A loan that is expected to convert into shares at a future round instead of being repaid.
- Dilution — The reduction in an existing shareholder’s percentage when new shares are issued.
- Lead investor — The investor who sets the terms, does the deepest diligence and usually takes the largest share of a round.
- Pro-rata — An existing investor’s right to put more money into future rounds to keep their percentage.
Keep reading
- How to raise a seed round for an AI startup
- How to value an AI startup
- Frequently asked questions about GetDeal
Updated 2026-09-09