The SAFE Pile-Up: How Three "Simple" Agreements Became a Dilution Bomb

Millie built a strong product. She had paying customers, a clear wedge into her market, and three investors who believed in her early enough to write checks when nobody else would. Over fourteen months, she raised $750,000 across three SAFEs. Each one felt small. Each one felt reasonable. Each one was a post-money SAFE — the standard YC instrument that 90% of pre-seed founders are signing right now, according to Carta's Q1 2025 data.

Then she got a term sheet.

Her Series A lead offered $3 million at a $12 million post-money valuation. Solid terms for a company at her stage. She ran the mental math in her head: 25% to the new investor, 15% option pool, maybe another 6% or so to the SAFE holders. She figured she'd keep somewhere around 55%.

She kept 40%.