Convertible Note & Cap Table Math Guide for Connecticut

What this calculator does

Run this scenario in DocketMath using the Convertible Note Cap Table calculator.

DocketMath’s Convertible Note & Cap Table Math Guide for Connecticut is built to help you translate the economics of a convertible note into a clear capitalization table outcome—before you (or your team) walk into a negotiation or close.

Specifically, the convertible-note-cap-table calculator helps you model the conversion mechanics that typically determine:

• How many shares a note converts into (post-money vs. pre-money approaches are common, depending on the note terms).
• How the cap (valuation cap) impacts conversion price and dilution.
• How the discount impacts conversion price and dilution.
• What the cap table looks like after conversion, including dilution to common holders and any option pool effects if you include them in inputs.

For Connecticut-focused workflows, this guide also flags a separate—but frequently overlooked—timeline issue: when claims tied to contract/conversion disputes may be time-barred. Connecticut’s statute of limitations rules can matter when you’re documenting note terms, issuing notices, or reconciling discrepancies.

When to use it

Use DocketMath when you need to quantify “what happens if” for a convertible note, especially if you’re trying to align stakeholders on dilution and ownership.

Common Connecticut use cases include:

• You’re closing a priced round (or an equity financing) and want to know exactly how the note will convert under the note’s conversion triggers.
• You’re comparing valuation cap vs. discount outcomes:

  • If the next round valuation is high, the valuation cap often drives conversion.
  • If the next round valuation is lower than expected, the discount can drive conversion (depending on the note’s formula).
• You’re issuing an investor-friendly cap table before notices or amendments are sent.
• You’re reconciling a prior conversion:

  • If there’s disagreement about conversion price, share count, or the resulting ownership percentages, a consistent math model helps you spot the mismatch faster.

Connecticut timing awareness (workflow, not advice)

If your workflow includes documenting contract positions and preserving evidence related to conversion or related disputes, Connecticut’s statute of limitations can be relevant. Two anchors in Connecticut law (often used in civil contract contexts) are:

• Conn. Gen. Stat. § 52-577a — 3 years (with exception M6 listed in your jurisdiction data)
  Link: https://law.justia.com/codes/connecticut/title-52/chapter-926/section-52-577a/?utm_source=openai
• Conn. Gen. Stat. § 54-193 — 5 years (with exception P1 listed in your jurisdiction data)

Step-by-step example

Below is a practical walkthrough using the inputs you’d commonly use in DocketMath’s convertible-note-cap-table tool. I’ll show how the outputs change when you tweak valuation expectations.

Example scenario

Assume:

• Note principal: $500,000
• Note maturity not considered (we’re modeling conversion at financing)
• Valuation cap: $5,000,000
• Discount: 20%
• Option pool: not included for simplicity (add it if your cap table includes it)
• Post-money valuation used for comparison: $8,000,000
• Existing fully diluted shares before conversion: 1,500,000
• Any other securities (SAFEs, warrants) are ignored here (add them if your tool supports them)

Step 1: Compute “what conversion price would be” under cap vs. discount

Most convertible note structures compute a conversion price (or conversion shares) using the lower effective price:

• Cap-based price approach (conceptually):
  Effective valuation for conversion is capped at $5,000,000 rather than the $8,000,000 round valuation.
• Discount-based price approach (conceptually):
  Conversion is priced at 80% of the round price (because discount is 20%).

Your tool typically handles these formula details based on the conversion method you select (pre-money vs post-money mechanics). The key math idea: lower effective price ⇒ more shares ⇒ more dilution.

Inline reference: If you need to revisit the underlying assumptions in the calculator UI, see the convertible note cap table math guide here: /tools/convertible-note-cap-table

Step 2: Convert principal into shares (share count is the engine)

The conversion share count is driven by:

• Conversion price, and
• Note principal

So once the tool determines the effective conversion price, it calculates:

• Shares from note = $500,000 / effective conversion price

Step 3: Update the cap table (dilution calculation)

Once the tool estimates new shares issued to noteholders:

1. Add note-conversion shares to the existing fully diluted share count.
2. Compute each holder’s percentage ownership:

DocketMath’s output should provide the after-conversion ownership percentages automatically.

Step 4: Compare cap vs. discount outcome quickly

Now tweak the post-money valuation to see which mechanism “wins.”

Let’s change the financing valuation:

• If next round post-money is high (e.g., $8,000,000), the valuation cap usually produces a lower conversion price than a discount-only method.
• If next round post-money is low (e.g., $3,500,000), the discount may produce the lower effective price.

The practical takeaway:

• Higher round valuation tends to make the cap more important.
• Lower round valuation tends to make the discount more important.

Step 5: Export the “before vs. after” snapshot

For stakeholder alignment, capture:

• Pre-conversion cap table
• Post-conversion cap table
• The effective conversion price used
• The share count issued to the noteholder

This becomes your reference artifact during board decks, investor updates, and closing checklists.

Common scenarios

Convertible notes don’t convert in a vacuum. DocketMath helps you test frequent scenario categories that affect the cap table outcome.

1) Next round valuation is above the cap

If the financing valuation is above the cap level, the cap generally sets the effective conversion price (depending on the clause). Result:

• Conversion occurs at a price tied to the cap, not the new round price.
• Share issuance increases relative to a straight discounted conversion at round price.

Checklist:

2) Next round valuation is below the cap

When the valuation is below the cap, the discount often produces the effective lower conversion price (again, depending on the note language). Result:

• Investors receive more shares than they would at the round price.
• Dilution can be more sensitive because small valuation changes can swing the “lower-of” result.

Checklist:

3) Multiple notes converting together

If you have several notes, the cap table impact is the sum of their conversion share issuances. Result:

• Total dilution may be substantially larger than modeling one note in isolation.
• Order of operations matters only if terms include participation or special priority; otherwise total shares just add.

Checklist:

4) Amendments or post-closing “true-ups”

If the note allows adjustments or if there’s a negotiated amendment post-signature, the “math truth” might change.

Workflow:

Even if you’re not pursuing any dispute, documenting “before vs. after” math reduces confusion later.

5) Timeline considerations for disputes (Connecticut)

When conversion outcomes are contested, the relevant time window matters. Your jurisdiction data references:

• 3 years under Conn. Gen. Stat. § 52-577a (exception M6)
  https://law.justia.com/codes/connecticut/title-52/chapter-926/section-52-577a/?utm_source=openai
• 5 years under Conn. Gen. Stat. § 54-193 (exception P1)

Tips for accuracy

If your goal is a cap table that stakeholders trust, the biggest risks are input mismatch and convention mismatch.

Validate these inputs first

Use this quick checklist before relying on outputs:

Related reading

• Inputs you need for convertible note cap table math in United States (Federal) — Input checklist with sourcing guidance
• Worked example: convertible note cap table math in North Carolina — Worked example with real statute citations
• Convertible note cap table math in California — Full how-to guide with jurisdiction-specific rules