Founder Agreement Essentials

Purpose

This recipe produces a complete, executed founder agreement package covering the six critical components every startup needs before writing code or raising money: equity split with vesting, IP assignment, roles and responsibilities, exit and buyout provisions, decision-making and deadlock resolution, and restrictive covenants. The output is a set of signed legal documents that protect all founders, satisfy investor due diligence requirements, and prevent the most common co-founder disputes that kill startups. [src1]

Prerequisites

• Co-founder evaluation completed — all founders have assessed compatibility and agreed to proceed together — Co-Founder Evaluation Framework
• Equity split agreed in principle — founders have discussed and tentatively agreed on ownership percentages based on contributions
• Role definitions drafted — each founder's title, responsibilities, and decision authority scoped at least informally
• Incorporation entity chosen — Delaware C-Corp is standard for VC-track startups; LLC for bootstrapped ventures [src4]
• Legal budget determined — $500-800 for template platforms or $2,000-5,000 for attorney-drafted documents

Constraints

• All founders must sign IP assignment (PIIA/CIIA) before any work begins. Retroactive assignment is legally weaker and investors will flag it during due diligence. [src7]
• The 83(b) election must be filed with the IRS within 30 calendar days of the stock grant date. Missing this deadline cannot be corrected and results in substantially higher tax liability. [src1]
• Non-compete clauses are unenforceable in California and increasingly restricted nationwide after the FTC's 2024 rule. Rely on non-solicitation and confidentiality provisions instead. [src8]
• Vesting schedules must be in place before any institutional investment. Investors will require vesting as a closing condition. [src1]
• In US startups, founder agreement provisions are typically distributed across multiple documents: stock purchase agreements, PIIA/CIIA, company bylaws, and state corporate law. [src4]

Tool Selection Decision

Which path?
├── Founders have standard 2-3 person C-Corp, VC-track
│   └── PATH A: Template Platform — Clerky ($799) or Stripe Atlas ($500)
├── Founders have complex IP, 3+ founders, or non-standard terms
│   └── PATH B: Attorney-Drafted — startup law firm ($2K-5K)
├── Founders are bootstrapping, cost-sensitive, simple structure
│   └── PATH C: DIY with Free Templates — Cooley GO + YC docs ($0)
└── Founders are outside the US
    └── PATH D: Local Attorney — jurisdiction-specific counsel (varies)

Execution Flow

Step 1: Negotiate and Document Equity Split

Duration: 1-3 hours · Tool: Spreadsheet + cap table tool

Agree on the equity split before touching any legal documents. This is the hardest conversation and must happen first. Use a weighted contribution framework: idea origination (10%), domain expertise (20%), technical ability (20%), full-time commitment (20%), capital contributed (15%), and network/connections (15%). Reserve 10-20% for the employee option pool. [src5]

Verify: Both founders can articulate why the split is fair. If either feels resentment, renegotiate now. · If failed: If founders cannot agree on equity, revisit the co-founder evaluation. Equity disagreement at this stage signals misalignment.

Step 2: Define Vesting Schedule and Cliff

Duration: 30 minutes · Tool: Cap table tool or spreadsheet

Apply the standard 4-year vesting with 1-year cliff to all founder shares. At month 12, 25% vests immediately. The remaining 75% vests monthly over 36 months (~2.08%/month). The company retains a repurchase right on unvested shares at the lower of original cost or current FMV. Use double-trigger acceleration (50-100% of unvested shares accelerate if change of control AND termination without cause). [src1] [src3]

Verify: Vesting schedule documented with exact dates, share counts, and cliff date. · If failed: If founders resist vesting, explain that investors universally require it.

Step 3: Draft IP Assignment (PIIA/CIIA)

Duration: 1-2 hours · Tool: Clerky template, Cooley GO template, or attorney

Every founder must assign all startup-related IP to the company. The PIIA/CIIA covers: assignment of all inventions created during service, assignment of pre-existing IP contributed (listed on Schedule A), confidentiality obligations, non-solicitation of employees (12-24 months), and return of materials upon departure. A separate Technology Assignment Agreement (TAA) covers any IP developed before incorporation. [src7]

Verify: Every founder has signed the PIIA/CIIA. All pre-existing IP listed on Schedule A. · If failed: If a founder has prior employer IP claims, engage a startup attorney before proceeding.

Step 4: Define Roles, Decision-Making, and Deadlock Resolution

Duration: 1-2 hours · Tool: Written document (bylaws or operating agreement)

Define decision authority: operational decisions under $10K by CEO unilaterally, $10K-$50K by majority, strategic/hiring/pivot by board majority, equity/fundraise by unanimous, dissolution/sale by unanimous or supermajority. For 50/50 splits, include deadlock resolution: good-faith negotiation (7 days), mediation (14 days), advisory board vote, buy-sell provision (Texas Shootout), and binding arbitration as last resort. [src6]

Verify: Decision matrix covers spending, hiring, equity issuance, pivoting, and dissolution. Deadlock mechanism has defined timelines. · If failed: If founders cannot agree on decision authority, revisit co-founder evaluation.

Step 5: Establish Exit and Buyout Provisions

Duration: 1 hour · Tool: Stock purchase agreement provisions

Define outcomes for four departure scenarios: voluntary departure (keep vested, company repurchases unvested), termination for cause (right of first refusal on vested at FMV, unvested forfeited), termination without cause (commonly 6-12 months acceleration + severance), and death/disability (12 months acceleration, company option to repurchase from estate at FMV). Include right of first refusal (ROFR) on all share transfers. [src2]

Verify: All four departure scenarios have defined terms. ROFR included for any share transfers. · If failed: Focus on voluntary departure terms first — the most common scenario.

Step 6: Execute Documents and File 83(b) Elections

Duration: 1-3 hours (signing) + 1 hour (83(b) filing) · Tool: Clerky, DocuSign, or attorney + certified mail

Sign all documents: stock purchase agreement (vesting + repurchase), PIIA/CIIA, TAA (if applicable), board consent resolutions, and bylaws. Immediately file 83(b) elections with IRS via certified mail, return receipt requested. This elects to pay tax on near-zero stock value at grant date instead of at vesting. The 30-day deadline is absolute — no extensions or corrections possible. Update cap table with all issued shares, vesting commencement dates, and cliff dates. [src1]

Verify: All documents signed. 83(b) elections sent via certified mail within 30 days. Tracking number recorded. Cap table updated. · If failed: If 83(b) deadline is approaching, prioritize filing above all other steps.

Output Schema

{
  "output_type": "founder_agreement_package",
  "format": "PDF + spreadsheet",
  "columns": [
    {"name": "document_type", "type": "string", "description": "Type of legal document", "required": true},
    {"name": "status", "type": "string", "description": "draft, reviewed, signed, filed", "required": true},
    {"name": "founders_signed", "type": "string", "description": "List of founders who signed", "required": true},
    {"name": "deadline", "type": "date", "description": "Filing deadline if applicable", "required": false},
    {"name": "filed_date", "type": "date", "description": "Date filed (for 83(b))", "required": false},
    {"name": "tracking_number", "type": "string", "description": "Certified mail tracking", "required": false}
  ],
  "expected_row_count": "5-8",
  "sort_order": "deadline ascending",
  "deduplication_key": "document_type"
}

Quality Benchmarks

If below minimum: Do not proceed with product development or fundraising until at least stock purchase agreements and PIIA are executed. Investors will not fund a company without these documents.

Error Handling

Cost Breakdown

Anti-Patterns

Wrong: Handshake agreement with no written documents

Many co-founders start building on verbal agreements, assuming they will formalize later. When the startup gains traction, misaligned memories of verbal promises cause disputes that destroy companies. Investors will refuse to fund any startup without documented founder agreements. [src2]

Correct: Execute written agreements before writing a single line of code

Draft and sign at minimum: stock purchase agreement with vesting, PIIA, and a written role/decision framework. Use Clerky or free Cooley GO templates if budget is limited.

Wrong: Equal 50/50 split without vesting

Two founders split equity 50/50 with immediate full ownership. One leaves after 6 months with half the company, contributing nothing further. The remaining founder builds alone while half the equity is permanently allocated to someone who left. [src1]

Correct: All equity subject to 4-year vesting with 1-year cliff

Even 50/50 splits are fine — provided both founders vest. Early departure triggers repurchase of unvested shares, protecting the remaining founder and the company.

Wrong: No IP assignment before work begins

Founders build a product for 12 months without formal IP assignment. During fundraising, investors discover the gap. A departed founder could claim ownership of critical IP. [src7]

Correct: Sign PIIA/CIIA and TAA at incorporation

Make IP assignment part of the incorporation checklist, not an afterthought. Clerky and Stripe Atlas include these documents in their standard formation packages.

When This Matters

Use this recipe when co-founders have decided to work together and need to formalize their relationship before building the product or raising money. It produces the foundational legal documents that protect all parties and satisfy investor requirements. Execute after co-founder evaluation is complete and before any product development, fundraising, or customer-facing activity begins.