Your term sheet lands on a Tuesday, and someone asks the cap on your second angel's SAFE. You do not know. The fastest way to find the valuation cap across all your SAFEs is to ask a tool that already read every document you saved and have it return the cap and discount on each one side by side. The slow way, the one that ends in a Series A surprise, is reconstructing it by hand the week the term sheet shows up.
Most founders raise on SAFEs because they are fast and cheap. The cost shows up later. Signed instruments scatter across email threads, a shared drive, and a couple of DocuSign folders, and no single view tells you the cap, the discount, who holds pro-rata rights, and how much you have raised in total. Then a priced round forces every one of them to convert at once. The math you never modeled is the math that dilutes you.
The stacked-SAFE problem
SAFEs hide dilution, and stacked SAFEs hide it until conversion. Each SAFE carves out a fixed ownership slice before a single priced investor shows up, and multiple SAFEs from different rounds all convert together at the priced round. That stacking effect is a common source of dilution surprise for seed-stage founders, per Futureproof's breakdown of how multiple SAFEs hit a cap table.
The number that catches people is the one nobody put in a spreadsheet. In Futureproof's worked example, three SAFE tranches totaling $850K convert at caps of $5M, $6M, and $4M into roughly 16.7 percent of the company to the SAFE holders alone. Layer in a 20 percent Series A and total dilution reaches about 36.7 percent before a single Series A dollar settles, and Futureproof notes the option-pool top-up typically adds another 10 to 15 percent on top of that. The instruments were signed months apart, the cap and discount on each were never compared in one place, and a pre-money pool top-up dilutes founders and other common holders rather than the new lead.
Here is what most guides will not tell you: the dilution you should fear is not the cap you negotiated, it is the cap you forgot you signed. Every founder's instinct is to promise to stay organized next time. That instinct is the trap. The fix is not more discipline, it is retrieval. If your signed documents are searchable, the questions below take seconds instead of an afternoon of cross-referencing.
The questions to ask your own signed documents
These are questions a founder actually needs answered, not generic prompts. Each one targets a real obligation or number buried in instruments you signed. The phrasing matters: you are asking across a stack, not reading one document.
What is the valuation cap and discount on each SAFE I have signed?
No folder gives you this one, and it is the foundation for the rest. Y Combinator publishes its post-money SAFE in three variants: valuation cap with no discount, discount with no valuation cap, and an uncapped most-favored-nation version with neither, per Y Combinator's published SAFE documents. A single SAFE might carry a cap, a discount, both, or neither. Ask for all of them in one list and the outlier instrument with the aggressive cap shows up before it converts.
Which investors have pro-rata rights or MFN clauses I will need to honor at the priced round?
Pro-rata rights are not baked into the post-money SAFE itself. They travel in a separate side letter, and that letter is optional, so it may exist for some investors and not others, per CRV's SAFE guide. A search query finds that commitment; a casual skim misses it. The right to invest proportionally in your next round can consume the allocation your Series A lead needs, so find out who holds it before you negotiate.
MFN clauses are the other quiet obligation. An uncapped MFN SAFE lets the investor take the most favorable terms granted to any later SAFE investor in the same period, per Y Combinator's documents. Issue a low-cap SAFE after an MFN one and that low cap can flow backward. YC's own standard deal carries this structure: it invests $500,000 total, with $125,000 via a post-money SAFE for 7 percent of the company and $375,000 via an uncapped MFN SAFE, plus pro-rata rights, per YC's deal page. Search finds every MFN holder in one pass so none of them surprise you.
How much have I raised cumulatively, and roughly how much dilution does that imply?
Add up the principal across every signed instrument first. It is the question behind the 36-percent surprise. The post-money SAFE calculates ownership on a post-money basis at signing, which makes each SAFE's dilution predictable on its own: a $500,000 SAFE on a $5M post-money cap locks in exactly 10 percent, the principal divided by the cap. But every post-money SAFE you stack chips into your own founder stake before you raise a dollar of priced equity, per The Startup Law Blog. A running total of cap and principal across the stack gives you the rough picture. This is search and arithmetic, not financial advice, and not a substitute for your lawyer's model.
Find every side letter or information-rights commitment buried in investor docs.
Side letters are where much of the real negotiation in a SAFE round lives, per CRV. Information rights, pro-rata rights, board observer seats, and reporting obligations often sit outside the SAFE itself in a one-page letter attached to a single investor. These are the documents that vanish into an inbox and resurface as an obligation. A query like find every side letter I have signed and what each one promises pulls them into one list so you forget nothing at the table.
Which instruments have a maturity date, and are these post-money or pre-money SAFEs?
SAFEs have no maturity date and never trigger repayment. Convertible notes do: they carry interest, typically 4 to 8 percent with a 7 percent median, and a maturity date commonly 18 to 24 months out in early rounds, and if you have not raised a priced round by then the note is technically due, per CRV. If your stack mixes notes and SAFEs, a single query for which of my instruments has a maturity date surfaces the ticking ones. The pre-money versus post-money distinction matters just as much, because pre-money SAFEs spread dilution differently and the two do not behave the same at conversion.
None of this is legal or financial advice. It is retrieval: pulling numbers and clauses out of documents you signed so you walk into a negotiation knowing what they say. Your lawyer and your cap-table model still own the final math.
Why guides and cap-table tools miss these questions
Guides explain SAFEs in general. They cannot tell you the cap on the SAFE you signed with your second angel. A blog post about MFN clauses is useful once, then it goes inert, because it does not know which of your investors hold one. Understanding is not the gap. Your specific documents are.
Cap-table platforms close that gap only after you do the data entry. Carta, Pulley, and similar tools model dilution accurately, but they model what you key in. You still open each SAFE, transcribe the cap, the discount, the principal, and the side-letter terms into the right fields, and keep it current every time you sign something new. The advice everyone gives, keep a living cap-table model updated with every new SAFE or note, is correct, and it is the manual work founders skip, per Klehr Harrison's founder toolkit. The modeling is only as good as the transcription, and the transcription is the chore that does not happen at 11pm during a raise.
| Approach | What it answers | Setup cost |
|---|---|---|
| Founder guides and explainers | How SAFEs, caps, and MFN clauses work in general | Zero, but never specific to your signed documents |
| Cap-table platform (Carta, Pulley) | Modeled dilution and ownership, once data is entered | High: manual transcription of every instrument, kept current |
| Manual PDF search | One clause in one document, if you remember which file | Per-document, repeated every time you need an answer |
| Ask across your saved documents | Cap and discount per SAFE, MFN holders, side letters, cumulative raise | Low: save the documents, then ask in plain English |
Stop searching PDFs, ask across them
Stop finding files. Ask them instead. Keyword search inside a PDF reader makes you the query engine: you pick the file, guess the wording, and read for the answer. Asking flips it. You pose the question once, in plain English, across every instrument at once, and the answer comes back with the source document attached. Keyword search makes you the query engine. Asking makes the documents answer.
If you cannot explain how your existing SAFEs convert and what ownership looks like after Series A, investors may question your financial judgment, and founders who understand their dilution math before a raise usually negotiate better outcomes, per CRV. The documents already know the answer. The only question is whether you can ask them before the term sheet forces you to.
Where MemX fits
This is the job MemX was built for: searching your own saved material by asking. Save your signed SAFEs, term sheets, and side letters as PDFs, and MemX reads the text inside them with OCR, so the cap buried on page three is searchable, not just the filename. Then ask in plain English, what is the valuation cap and discount on each SAFE I have signed, or which investors hold pro-rata rights, and MemX answers from your own documents and cites the source memory it pulled the answer from.
MemX is private by architecture: customer-managed encryption keys, per-user cryptographic isolation, encryption at rest, and on-device processing options. It is a personal second brain for the documents you save, not an enterprise eDiscovery system and not a cap-table modeler. It will not run your Series A projection. It will tell you, in seconds, what every instrument you signed says. The free tier needs no credit card and runs on Android, iOS on the App Store, and WhatsApp.
The week a term sheet lands, ask one question first: list the cap, discount, and principal on every SAFE I have signed, plus anyone with pro-rata or MFN rights. Get that one answer before you model anything, and the priced round stops being a surprise.
01How do I find the valuation cap across all my SAFEs at once?
Save every signed SAFE to a searchable tool and ask for the cap and discount on each, side by side. Manual PDF search returns one clause per file. Asking across all of them returns the full list with each source document cited.
02What is the difference between a pro-rata right and an MFN clause?
Pro-rata rights let an investor invest in your next round to hold their percentage. An MFN clause lets them adopt the most favorable terms you grant any later SAFE investor. Both are obligations you honor at conversion, often in separate side letters.
03Do SAFEs have a maturity date like convertible notes?
No. SAFEs have no maturity date and never trigger repayment. Convertible notes do, commonly 18 to 24 months out with 4 to 8 percent interest. If your stack mixes both, search for which instruments carry a maturity date.
04Why do stacked SAFEs cause a dilution surprise at Series A?
Multiple SAFEs from different rounds convert together at the priced round, and a pre-money pool top-up adds to it. In one worked example, three SAFEs plus a 20 percent Series A reached roughly 36.7 percent dilution before the pool, often because nobody modeled the full stack.
05Can a cap-table tool answer these without manual entry?
Cap-table platforms model accurately but only after you transcribe each instrument's cap, discount, and terms into their fields and keep it current. The modeling is solid; the data entry is the chore most founders skip during a raise.
Written by Arpit Tripathi, who builds MemX, a personal AI memory app that lets you ask questions of your own saved documents and get answers cited back to the source.
