Pre-money vs Post-money Valuation

When you raise money for your startup, one of the first numbers everyone negotiates is the valuation. But there are actually two valuations in every deal: pre-money and post-money. Pre-money valuation is the agreed-upon value of your company before the new investment hits your bank account. Post-money valuation is simply pre-money plus the amount being invested.

The distinction matters because it directly determines how much of your company the new investors will own. If your pre-money valuation is $8M and you raise $2M, your post-money valuation is $10M. The investors just bought $2M out of $10M, or 20% of your company. Change the framing to a $10M post-money valuation with the same $2M investment, and the math is identical — but if someone says "$10M valuation" without specifying pre or post, you could end up with very different ownership percentages depending on the interpretation.

This is why term sheets always specify which type of valuation they're referencing. In the early days of SAFEs and convertible notes, post-money valuation caps have become more common (YC's standard SAFE uses post-money caps), which makes the dilution math more predictable for founders because you know exactly what percentage each investor is getting, regardless of how many other SAFEs you issue.

Getting confused about pre-money vs. post-money can cost you significant equity. A $10M pre-money valuation with a $2M raise means investors get 16.7% of your company. A $10M post-money valuation with the same $2M raise means they get 20%. That 3.3% difference compounds with every future round. As a founder, you need to be crystal clear on which number is being discussed in every fundraising conversation, and ensure your term sheet explicitly states it.