The financials slide is the slide investors spend the longest time on. DocSend’s research on seed decks found investors spend more seconds per page on financials than on any other slide. More than the problem. More than the team. More than traction.
Which is interesting, because it’s also the slide most founders put the least thought into. They either paste in a hockey-stick chart pulled from a template, or they skip financials entirely and hope nobody asks.
Both of those moves kill the pitch. Here’s what to do instead, broken down by stage, because the right answer at pre-seed is not the right answer at Series A.
Why this slide matters more than you think
Investors aren’t reading your financials slide to verify the numbers. They know your projections are wrong. Every startup’s projections are wrong. The exercise is pointless as a forecast.
What they’re reading for is how you think. A founder who can build a bottom-up revenue model from customer counts and pricing is a founder who understands their business. A founder who types “$5M Year 1, $50M Year 2, $500M Year 3” into Excel and calls it a projection is a founder who hasn’t done the work.
The slide is a proxy. The numbers are the interview, not the answer.
This is one of the reasons investor psychology matters more than the numbers themselves — investors read decks sideways. They’re looking for signals of founder rigor, not forecast accuracy.
What to show at pre-seed
At pre-seed, you probably have no revenue, or revenue so small it’s noise. That’s fine. Investors at this stage aren’t underwriting your financial model. They’re underwriting you.
What to include:
- A simple 3-year projection: revenue, gross margin, operating expenses, net burn.
- Key assumptions on the slide. ACV, number of customers by year, blended CAC if you have any data, headcount plan.
- Runway math: how long does the raise last, what milestones it funds.
What to cut:
- EBITDA margins five years out.
- Cash flow statement by month.
- Anything that implies precision you don’t have.
At pre-seed, DocSend’s research on successful seed decks found that only 58% of founders who closed their seed rounds included financial slides at all. The narrative of the pitch matters more than the projections at this stage. If yours is genuinely too early for numbers, a strong traction slide (which I covered in the pre-seed traction slide piece) does more work than a made-up forecast.
Red flag investors spot at pre-seed: the hockey stick with no basis. If your Year 3 revenue is $30M and you can’t explain — in one breath — how many customers at what ACV gets you there, delete the slide.
What to show at seed
At seed, you probably have some early revenue, some customer data, and enough signal to project with a little more confidence. The financials slide expands from “here’s the plan” to “here’s the early proof plus the plan.”
What to include:
- 3-year projection, with a 5-year summary line if investors in your stage expect it.
- Revenue breakdown by customer segment or product line if relevant.
- Unit economics: CAC, LTV, payback period, gross margin per customer.
- Monthly burn rate and runway.
- Use of funds: how this round gets you to the milestones that unlock the next round.
What to cut:
- Detailed P&L by line item.
- Tax assumptions.
- Anything that belongs in a financial model, not a pitch deck.
The bottom-up logic matters more than ever at seed. Your TAM, SAM, SOM has to reconcile with your financial projections. If your SOM in Year 3 is $20M and your Year 3 revenue projection is $80M, one of them is wrong, and the investor will flag it before you finish explaining.
Red flag at seed: CAC that’s suspiciously low or LTV that’s suspiciously high. If you’re showing an LTV:CAC of 10:1 at seed, investors will assume your churn data is too young to trust. Be conservative. Show the math.
What to show at Series A
Series A is where the financials slide stops being a projection and starts being an accounting exercise. You have real revenue, real customer cohorts, real CAC payback data. The investor is underwriting a growth machine, not a story.
What to include on the main slide:
- ARR today, growth rate, net revenue retention (NRR).
- 3–5 year revenue projection grounded in current cohort behavior.
- Gross margin trajectory.
- CAC payback period and LTV:CAC.
- Burn multiple (net burn ÷ net new ARR).
What to put in the appendix:
- Detailed monthly P&L.
- Cohort analysis by acquisition channel.
- Sensitivity analysis on key assumptions.
- Headcount plan by function.
- The full financial model in a linked spreadsheet.
At Series A, the appendix matters. Institutional investors will run diligence on every number, and having the backup ready signals you’ve done the work. If this is the round you’re preparing for, the structural shift from seed to Series A is covered in more detail in the Series A pitch deck guide.
Red flag at Series A: NRR below 100% in SaaS, or CAC payback longer than 18 months. Both are fixable, but they have to be addressed on the slide, not hidden in the appendix.
The three mistakes I see every week
1. The reverse-engineered hockey stick. Founder wants to raise $3M. Backs into “how much revenue do I need to project to justify this raise?” Ends up at $30M Year 3. No underlying customer math. Investor reads the slide, sees the shape, moves on.
2. The 40-row P&L. Founder has a real financial model. Copies the whole thing onto a slide. Five sizes of font later, you have something that looks comprehensive and is completely unreadable. The slide is a summary. The model is the appendix.
3. No use of funds. Founder shows the projection, shows the ask, and doesn’t connect them. How does the money turn into the revenue? Which hires? Which channels? Which milestones? Without that bridge, the investor can’t evaluate whether the raise is right-sized.
How far out should you project?
Short answer: 3 years for pre-seed and seed. 5 years for Series A and later.
Slightly longer answer: investors know anything past year 3 is fiction. What they want to see is whether you’ve thought about what the business looks like at scale. A 5-year projection with a clear narrative (here’s how we go from $5M ARR to $50M) tells them you have a long-term plan. A 10-year projection tells them you’ll say anything.
Most research on this converges on 3–5 years as the sweet spot. Past that, you’re not adding information — you’re adding fiction.
The one thing almost every founder gets wrong
Burn rate.
Not the number itself. The context. If you say “our burn is $150K/month,” the next question is always “and how does that evolve after the raise?” Most decks don’t answer that.
Show your current burn, your projected burn post-raise, and your runway at each burn level. A slide that says “18 months of runway at $250K/mo post-raise, getting us to $2M ARR and the metrics needed for Series A” is a slide an investor can champion internally. A slide that says “$3M ask” with no runway math is a slide they’ll forward to their analyst with a question mark.
The honest test
Close your deck. Open a blank document. Without looking, write down:
- Your ARR today (or Year 1 projection if pre-revenue).
- Your Year 3 revenue number.
- The number of customers and ACV that gets you there.
- Your current monthly burn.
- Your runway post-raise.
- The two milestones this round funds.
If you can’t do it from memory, your financials slide isn’t ready. Because the investor is going to ask exactly these questions in the meeting, and “let me pull up the model” is not the answer that gets a second meeting.
The financials slide isn’t the place to show off your Excel skills. It’s the place to prove you know your business well enough to explain it without the spreadsheet.
The full financial projections framework — including how to build bottom-up revenue models for different business types (SaaS, marketplaces, fintech, consumer, deep-tech) — is inside The Pitch Deck Guide. If you want someone to build the projections with you and make the slide defensible, Deck Studio includes financial modeling as part of The Full Deck Build.
