Tactical insights for first-time founders to outsmart the burn, the churn & the breakdown.

Hey Founder,

Picture the day you raise your first priced round. Seed, Series A, whichever comes first. It’s a milestone.

Then the lawyers build the cap table and you’re staring at your ownership thinking, wait, is this right?

It’s much lower than you expected. Not because anyone screwed you over, but because you signed a few SAFEs when you needed the money and never saw what they’d add up to.

That's the danger with SAFEs. They're easy: a five-page PDF, two blanks, money wires in, back to building. Then you do it again.

The math catches up at the priced round, when it's too late to rewind the cap table.

The good news: if you haven't signed yet, the number's still yours to change.

This issue is about knowing what you’re giving up before you sign your first SAFE or your next one, so you walk into your priced round with a cap table you chose, not one that ambushes you.

Let’s dive in.

SAFEs confuse almost every first-time founder.

Before 2013, raising your first money usually meant a priced round: two law firms, a valuation you weren’t ready to defend, a term sheet, and eight to twelve weeks you didn’t have.

The alternative was a convertible note, basically a loan with a maturity date.

Y Combinator’s fix was the SAFE: Simple Agreement for Future Equity.

Five pages. Two blanks. No interest, maturity date, or valuation. You take the money now; the investor gets shares later, when you raise a priced round.

It worked. SAFEs now make up 93% of pre-priced rounds. If you’ve ever raised pre-revenue on a good conversation and a deck, that simplicity is part of why.

Then, in 2018, YC introduced the post-money SAFE that’s standard today. It solved a real problem for investors.

But it also changed something founders often miss: who absorbs the dilution from the next SAFE. You. 

A SAFE lets you raise before you’re ready for a priced round, which is exactly why founders love them. You can be pre-revenue, pre-PMF, and nowhere near ready to defend a valuation, yet still take money now and let the equity convert later.

The problem starts when you stack post-money SAFEs, because two things happen that founders often don’t model properly.

Raise $1M on a $10M valuation cap and that investor owns at least 10%. If the priced round lands at $5M, that same $1M gets them roughly 20%; at $10M or above, it’s 10%.

So the valuation cap isn’t really a ceiling on ownership. It’s a floor.

The first SAFE feels simple enough, but when you add another, the earlier investor’s economics stay protected. The new dilution lands on the remaining holders: you, your co-founders, and the option pool.

Keep stacking, and that effect compounds.

Nothing is hidden here. The problem is that founders rarely model the whole stack before signing each new SAFE.

That’s why Peter Walker at Carta has called SAFE stacking one of his biggest founder pet peeves: too many founders reach the priced round without realising how much they’ve already sold. 

Priced dilution is the part you see coming: term sheet, lawyers, redlines, and a percentage everyone in the room can see.

Silent dilution happens one SAFE at a time. Nobody says, “You’re giving away another 8% of the company.” You sign, the money lands, and you go back to building.

The problem is that silent dilution only becomes obvious later, when everything converts and there’s nothing left to renegotiate.

That’s why founders can spend weeks negotiating the priced round while barely modeling what the SAFEs already cost them. 

In one example, the priced round cost founders 19 points. The SAFEs signed over the previous 18 months cost them 30.

Capwave modeled a similar case: two stacked SAFEs plus a $4M seed at $24M. Once everything converted, founders lost 25–35% of the company, while the term sheet only showed the lead taking 17%.

Across more than 500 rounds, founders stacking multiple post-money SAFEs ended up 8–14 ownership points below what they expected.

That’s a co-founder’s worth of equity lost to math nobody ran. 

Your cap determines how much of the company each SAFE locks up: investment ÷ cap = the investor’s slice.

And remember, that slice is a floor, not a ceiling.

Set the cap too high and you can dilute harder if the priced round comes in below it; set it too low and you’ve anchored the company at a valuation you may regret.

That’s trickier in 2026. SAFE caps rose across every band, with the median for raises above $2.5M reaching $35M, up 40% year over year. But most of those are AI companies, which took 49% of all pre-seed money in the first half of 2026.

So benchmark against your stage, industry, and region, not an AI-inflated median unless you’re actually in that category. Your cap should reflect where you expect to be at the next milestone, not your dream valuation. 

Priced-round investors usually want 10 to 20% of the company reserved for future hires. What matters to your ownership is whether that pool is created pre-money or post-money. 

Steve Schlenker of DN Capital modeled the difference: with a £20M pre-money valuation and £5M raise, creating a 10% pool after the investment lifts the effective post-money to roughly £27.5M, turning the investor’s £5M into about 18% ownership instead of 20%.

You may not win that negotiation, but asking where the pool sits tells investors you understand the cap table, and lets you see the dilution before agreeing to it. 

Most Favoured Nation lets an earlier investor adopt better terms you give someone later. That backward reach is what makes it easy to underestimate.

Say you raise two $1M SAFEs at a $20M cap with MFN. That’s roughly 5% each, or 10% combined.

Then an accelerator invests $250K at a $6M cap.

Both earlier investors may now have the right to adopt that $6M cap, turning their roughly 5% slices into about 17% each. A $250K cheque can take your earliest backers from around 10% combined to more than 30%.

And that extra dilution comes out of the founder side.

Founders often think a SAFE postpones the valuation conversation until the priced round.

It doesn’t.

You’re still making an ownership decision now, you just won’t see the full cap table until later.

So stop asking "how much money do I need right now?"
Start asking "how much of the company am I giving away in silent dilution?"

Decide how much ownership you’re willing to give up across all SAFEs and treat that as a hard ceiling. Rebel Fund suggests staying under 18% cumulative through seed, with 10–20% as a reasonable range.

Add up what your existing SAFEs already lock in, subtract that from your ceiling, and size the next raise around what’s left.

If you want to raise $1.5M without giving up more than 8%, your cap needs to be at least $18.75M. If that doesn’t work, the answer is to raise less or justify a higher cap. 

Your ceiling should protect ownership without assuming a priced round you’re unlikely to reach.

Your floor is the lowest cap you’ll accept before dilution becomes too expensive and starts anchoring future expectations.

Benchmark against companies at your stage and in your category, Carta's free SAFE calculator is a useful starting point, and keep the cap inside a range you can actually defend. 

Open a spreadsheet or cap-table tool and list every SAFE already signed: amount, cap, discount, MFN, and pro-rata. Add the new SAFE, then layer a realistic priced round on top.

Model three things:

Then look at one number: What do you personally own the day the priced round closes, after the pool and all conversions?

That’s the number to understand before you sign.

Want to model it yourself? Use our simple cap table with built-in SAFE conversion and see exactly what you'll own before and after the round closes.

A founder asked:

Only if it creates distribution.

A relevant audience can lower the cost of reaching customers, speed up feedback, and build trust before the sales conversation. But follower count by itself is meaningless. Ten thousand generic followers won’t create traction.

It matters when the audience overlaps with your buyers and there’s a clear path from attention to outcomes: conversations, demos, trials, partnerships, sales.

The side benefits can be useful too, easier hiring, fundraising, and a stronger community around the problem you’re solving.

So don’t post because founders are “supposed to.”

Post if it helps you reach and convert the people your company needs. Pick one channel, let one founder own it, and treat it like a GTM motion, not a vanity project.

Send it my way, just hit reply.

Three Things Worth Saving:

Before you go…

You can’t control every SAFE term or predict where your next round will land. But you can decide how much of your company you’re willing to sell, understand what you’ve already committed, and enter the next negotiation knowing your limits.

Know the math before the market knows your price.

That’s your real moat.

See you next Thursday,

— Mariya

Hit reply and let me know. I read every single one (for real).

1. Early stage? Start with one of my practical finance guides.

2. Stuck on something specific? Book a 1:1 and we’ll work through it together.

3. Past $2M ARR? Work with me and the team at FounderFirst to run your CFO function.

Hey, I’m Mariya, a startup CFO and founder of FounderFirst. After 10 years working alongside founders at early and growth-stage startups, I know how tough it is to make the right calls when resources are tight and the stakes are high. I started this newsletter to share the practical playbook I wish every founder had from day one, packed with lessons I’ve learned (and mistakes I’ve made) helping teams scale.

Mariya Valeva

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