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Convertible Note Terms Explained: Discount Rate and Valuation Cap

Discount Rate: Compensating Early Investors for Risk

The discount rate is a percentage reduction applied to your Series A valuation. If your Series A is priced at $10M post-money and the note has a 20% discount, the note converts as if your valuation is $8M (20% off the $10M).

The logic: early investors take more risk than Series A investors. Series A investors see proof of concept, early customers, revenue traction. Pre-seed investors see a team and an idea. The discount compensates them for this risk premium. A 20% discount means "you're investing now at a price 20% cheaper than the Series A price, in exchange for bearing earlier risk."

From an investor perspective: a $500K investment at a 20% discount to a $10M Series A ($8M effective valuation) results in ownership of $500K / $8M = 6.25%. If they'd invested at the full $10M valuation, they'd own 5%. The 1.25% difference is their discount benefit.

From a founder perspective: you're giving away 6.25% equity to raise $500K, when a Series A investor would pay $500K for 5% equity at the same valuation. The 1.25% difference is the cost of raising capital earlier.

Discounts typically range from 10% (late-stage seed) to 30% (early pre-seed). Standard range is 15-25%. Higher discount signals higher risk or earlier stage. Lower discount signals later stage or competitive pressure (other investors bidding for the round).

Valuation Cap: The Investor's Downside Protection

A valuation cap is a maximum valuation at which the note will convert, regardless of what your Series A valuation is. If your cap is $5M and your Series A is priced at $8M, the investor still converts at $5M (not $8M). If your Series A is priced at $3M, the investor converts at $3M (cap doesn't apply; actual valuation is better).

The logic: investors want protection if you become incredibly valuable before Series A (they don't want to be stuck with a disadvantageous early valuation). The cap provides this protection. "I'll invest $500K now. But if you're somehow worth less than $5M when you raise Series A, I get the benefit of that lower valuation. If you're worth more than $5M, my ownership is capped."

From an investor perspective: a $500K investment with a $5M cap results in ownership of $500K / $5M = 10% in the Series A, regardless of whether your Series A is valued at $8M or $3M. The cap is a ceiling on their benefit, but a floor on their risk. They can't be diluted excessively by a wildly successful Series A.

From a founder perspective: a lower cap is more expensive for you. If you raise Series A at $8M post-money and the cap is $5M, the note investor gets $500K / $5M = 10% equity. If there were no cap and you were using a 20% discount, they'd get $500K / $6.4M = 7.8% equity. The cap cost you 2.2% of your company.

Valuation caps typically range from $2M (pre-seed of unproven startups) to $15M+ (later-stage seed of hot companies). Typical range is $3M-$8M for pre-seed, $5M-$12M for seed.

Cap vs. Discount: When Each Applies

When a convertible note has both cap and discount, the investor gets whichever is more favorable at conversion. The key question: which limit is hit first?

Example: $500K note, $5M cap, 20% discount. Series A at $10M post-money. Using discount: $500K / ($10M × 0.8) = $500K / $8M = 6.25% ownership. Using cap: $500K / $5M = 10% ownership. The cap is more favorable (10% > 6.25%), so the investor uses it.

Reverse example: $500K note, $5M cap, 20% discount. Series A at $3M post-money. Using discount: $500K / ($3M × 0.8) = $500K / $2.4M = 20.8% ownership. Using cap: $500K / $5M = 10% ownership. The discount is more favorable (20.8% > 10%), so the investor uses it.

Wait, the discount can be more favorable? Yes, when the Series A valuation is so low that the discount produces a larger percentage ownership than the cap. This happens when growth doesn't materialize and you're fundraising at a lower-than-expected valuation.

From a founder negotiation perspective: you want the cap to be the limiting factor (because it prevents excessive dilution in a successful scenario). From an investor negotiation perspective: they want the discount to be the limiting factor (because it compensates them in an unsuccessful scenario). Most notes include both because they hedge different outcomes.

Practical Examples: Cap vs. Discount in Action

Scenario 1: Explosive growth. Pre-seed: $500K note, $4M cap, 20% discount. Series A: $15M post-money. Cap produces $500K / $4M = 12.5% ownership. Discount produces $500K / $12M = 4.2% ownership. Investor uses cap (12.5%). You're diluted 12.5% for that $500K. The high valuation increase didn't help you; the cap limited the investor's benefit.

Scenario 2: Modest growth. Pre-seed: $500K note, $4M cap, 20% discount. Series A: $6M post-money. Cap produces $500K / $4M = 12.5% ownership. Discount produces $500K / $4.8M = 10.4% ownership. Investor uses cap (12.5%). You're still diluted by the cap even though your Series A valuation is modest.

Scenario 3: No growth, lower valuation. Pre-seed: $500K note, $4M cap, 20% discount. Series A: $2M post-money. Cap produces $500K / $4M = 12.5% ownership. Discount produces $500K / $1.6M = 31.25% ownership. Investor uses cap (12.5%, the more favorable). If there were no cap, you'd be diluted 31.25%. The cap protected the investor from this downside. From your perspective, the cap actually helped you (if you had to raise at $2M post-money, you'd be heavily diluted without cap protection).

Negotiating Cap: Balancing Risk

When negotiating cap, you're making a bet on your future valuation. A high cap ($8M) means you're confident you'll be worth more than $8M at Series A. A lower cap ($4M) reflects uncertainty. Higher caps are better for you if growth is strong (no cap bite); lower caps are worse for you in that scenario.

But consider investor perspective: a high cap leaves them exposed to high valuation upside without benefit. Would they accept a $10M cap? Only if they're compensated by a higher discount rate (25-30%) or if they have limited upside from their investment (they're happy to have backed you at any valuation, as long as they own something).

Strategy: propose a cap aligned with your honest 18-24 month projection. If you think you'll be worth $5M-$8M at Series A, propose a $6M cap. If you think you'll be worth $10M+, propose an $8M cap. This signals confidence and makes negotiation easier. Proposing a $3M cap when you think you'll be $10M looks either uninformed (you don't understand what your company is worth) or dishonest (you're trying to extract maximum value from the investor).

Negotiating Discount: Market Dynamics

Discount rate is more negotiable than cap in many cases. A typical pre-seed round might start at 25% discount and negotiate down to 20%. A later-stage seed might start at 15% and negotiate to 10%. Supply and demand matter: if you have multiple investors competing for your round, discount rates compress (investors will accept 10-15% discounts to get in). If you're struggling to raise, discount rates expand (you might accept 30% to land capital).

From your perspective: lower discount is better (less dilution per dollar raised). From investor perspective: higher discount is better (larger ownership stake). A reasonable compromise is in the 15-20% range for seed-stage companies with decent early progress.

Interest Rate and the Effective Dilution

Most convertible notes (but not SAFEs) accrue interest at 2-8% annually. This interest doesn't get paid in cash; it compounds and converts as additional principal. A $500K note at 4% interest over 2 years becomes $540,800 at conversion, giving the investor more ownership than the principal alone.

For a $500K note at 4% interest for 2 years, the additional $40,800 in interest is pure additional dilution. If the note had converted at a $5M cap, the investor owned 10% ($500K / $5M). With accrued interest, they own 10.8% ($540,800 / $5M). The interest rate is a subtle dilution mechanism that many founders ignore.

When negotiating: lower interest is better for you. SAFE notes have no interest, which is a benefit (but SAFEs have other terms, so it's not a pure comparison). For convertible notes, push for 2-3% interest (offset by a lower discount or higher cap).

Multiple Notes with Different Terms: The Series A Complexity

If you've raised multiple seed rounds, each note likely has different cap and discount rates. When they all convert in Series A, the math becomes complex. Each note converts independently using its own cap and discount.

Example: Pre-seed note ($250K, $3M cap, 20% discount, 4% interest), Seed note ($750K, $5M cap, 15% discount, 4% interest), Series A at $8M post-money. Pre-seed converts at $3M cap (cap is favorable on 20% discount of $8M = $6.4M). With accrued interest of $20K, investor owns ($250K + $20K) / $3M = 9%. Seed converts at $6.8M (15% discount on $8M is better than $5M cap). With interest of $60K, investor owns ($750K + $60K) / $6.8M = 11.9%. Total note dilution: 9% + 11.9% = 20.9%.

This cascading complexity is why it's important to track all note terms carefully and model Series A conversion early. Most founders don't do this until Series A discussions begin, and then they're surprised by total dilution.

The Effective Valuation: What the Notes Really Cost

When people ask "at what valuation did you raise your seed round?" the answer depends on how you measure. If you raised a convertible note with a cap, the "valuation" depends on your Series A outcome. Some founders say "we raised seed at our valuation cap" (e.g., $5M cap), others say "we raised at implied valuation based on the discount and expected Series A price."

More honest: convertible notes don't have a clear valuation at the time of investment. The valuation is determined at conversion (Series A). Before Series A, you can estimate the effective valuation by modeling conversion outcomes, but that's not the actual valuation. Be precise in how you talk about it to investors and advisors.

When Cap and Discount Align (or Conflict)

Sometimes a well-negotiated note has cap and discount that are roughly equivalent in protection. A 20% discount and a $5M cap on a company expected to be worth $6M-$8M at Series A both result in roughly 8-10% ownership. Neither dominates; they're in balance.

Sometimes they conflict. A high cap ($8M) paired with a high discount (25%) is generous to the investor. A low cap ($3M) with a low discount (10%) is generous to you. Neither is common; you're usually trading off one against the other.

Modeling Series A Outcomes Before You Raise Notes

Before raising convertible notes, model your Series A conversion under different scenarios. Assume best-case valuation ($8M), expected-case ($5M), and worst-case ($2M). Calculate the dilution from your notes under each scenario. If worst-case dilution is 30%+ from notes alone, the cap is low or discount is high (unfavorable to you). If best-case dilution is >20%, the cap might be limiting you unnecessarily.

This modeling helps you negotiate confidently. "I model conversion at a $5M Series A valuation. With a $6M cap and 20% discount, I'm diluted roughly 8-9%, which seems reasonable for early-stage capital." This signals sophistication and helps investors understand your thinking.

Key Takeaways

• Discount rate is a percentage reduction applied to Series A valuation at conversion; typical range 15-25% for seed-stage
• Valuation cap is a maximum valuation ceiling for conversion; typical range $3M-$8M for pre-seed, $5M-$12M for seed
• When both cap and discount are present, the investor gets whichever is more favorable; the limiting factor depends on your Series A valuation
• High Series A valuations make the cap limiting (investor doesn't benefit from exceeding cap); low valuations make the discount limiting (discount produces larger ownership than cap)
• Accrued interest compounds and converts as additional principal; lower interest rates are better for you
• Negotiate cap based on your honest Series A valuation projection; aligned expectations make negotiation easier
• Discount rates are market-dependent; competitive rounds lead to lower discounts (10-15%), tight fundraising leads to higher (25-30%)
• Multiple notes with different caps and discounts convert independently; model the cumulative dilution before Series A
• Convertible notes don't have a clear valuation at investment time; valuation is determined at conversion (Series A)
• Model Series A conversion under best, expected, and worst-case scenarios to understand dilution risk

FAQ

Which is more important to negotiate: cap or discount?

It depends on your confidence in Series A valuation. If you're highly confident you'll be worth $8M+, negotiate a high cap ($7M-$8M) and accept a moderate discount (20%). If you're uncertain, negotiate a moderate cap ($5M) and lower discount (15%). Most early-stage founders should prioritize cap (it's the bigger protection) over discount (which only matters in slower-growth scenarios).

Is a 20% discount standard?

Yes, 15-25% is typical. 20% is middle-market. Pre-seed notes might be 25-30%. Seed notes might be 10-15%. Negotiate based on your stage and market conditions.

What happens if our Series A valuation is exactly at the cap?

Then the cap and discount produce identical results. If Series A is $5M and your cap is $5M, using the cap gives $500K / $5M = 10% ownership. A 20% discount gives $500K / $4M = 12.5%, which exceeds the cap, so you use the cap. It doesn't matter; you hit exactly at the cap.

Can we negotiate cap up after raising the note?

Generally no. The cap is fixed at investment. You could theoretically renegotiate with the investor, but it's unlikely they'd accept a higher cap (it makes their investment less valuable). Better to negotiate cap carefully upfront.

What cap should we propose for our first seed round?

Propose a cap 1.5x-2x your current estimated valuation. If you think you're worth $2M pre-money, propose a $3M-$4M cap. This gives investors downside protection (they can't be too diluted in a booming Series A) while giving you upside room. If you're confident, propose the higher end of your range.