Entrepreneur Legal US · Insight
Founder Agreement US: Equity, Vesting and Key Clauses
Scope: General information for US startups. The governing state, entity type, tax status, securities exemption, founder circumstances and financing plans can change the required documents and analysis.
For the broader document roadmap, read What Legal Documents Does a US Startup Need?. For entity choice, see LLC vs C-Corp for Startups.
Founder agreement issues at a glance
| Issue | What the founder agreement can record | Separate implementation usually needed |
|---|---|---|
| Roles and commitments | Founder responsibilities, time commitments, authority, pay expectations and decision rights. | Employment or service agreements; board or manager appointments; payroll and state-law compliance. |
| Equity allocation | Commercial understanding of percentages, contributions, dilution and future grants. | Authorized equity; board/member approvals; stock or membership-interest purchase/grant documents; cap table and ledger. |
| Vesting | Schedule, cliff, credit for prior service, acceleration and founder-departure expectations. | Restricted stock purchase or grant agreement, repurchase option, LLC-interest provisions, approvals and ownership records. |
| Tax | Allocation of responsibility for advice and time-sensitive elections. | Valuation, tax advice and an IRS section 83(b) election where available and appropriate. |
| Governance | Voting thresholds, reserved matters, deadlock and information rights. | Certificate/charter, bylaws, LLC operating agreement, board/member consents and state-law compliance. |
| IP and confidentiality | Obligations to protect information and transfer business IP. | Separate IP assignment, invention-assignment and employment/contractor documents where needed. |
| Founder departure | Good/bad-leaver concepts, cooperation, transfer rights and dispute process. | Repurchase or forfeiture mechanics, transfer restrictions, valuation, payment and corporate/LLC approvals. |
| Fundraising and exit | Expectations on dilution, investor documents, drag/tag concepts and sale cooperation. | Term sheet, financing documents, amended charter/articles, investor rights and securities filings. |
What is a founder agreement in the United States?
“Founder agreement” is a commercial label rather than a single federally prescribed document. The agreement may be signed among the founders, and sometimes by the company, to record how the founders intend to work together. Its legal effect depends on state contract law, the parties, the drafting and whether the provisions are consistent with the company’s governing and equity documents.
The correct document set depends heavily on entity type. A Delaware corporation generally uses a charter, bylaws, board approvals, stock purchase or grant documents and a stock ledger. A Delaware LLC generally relies on its LLC agreement for member rights, management, voting, transfers and economic arrangements. A founder agreement can supplement those documents, but should not contradict them.
For formation, restricted stock purchase agreements, founder term sheets, share vesting agreements and bespoke governance work, see Business Formation and Business Structure.
Is a founder agreement legally required?
Usually no document with that title is legally required. However, the company still needs the documents and approvals required to create the entity, issue ownership, appoint decision-makers, transfer intellectual property, engage founders and comply with tax and securities laws. A founder agreement is useful because it forces the team to address expectations before value, leverage and conflict make agreement harder.
Core clauses in a US founder agreement
1. Parties, entity and business purpose
Identify the founders and the entity precisely, describe the business and decide whether the company should be a party. If the company is a party, approvals and conflicts should be considered. If the company is not a party, determine whether it has direct rights to enforce IP, confidentiality, transfer or cooperation provisions.
2. Founder roles and time commitments
State who leads product, technology, sales, finance, operations and fundraising; whether the commitment is full-time, part-time or transitional; and which decisions each founder can make. Titles alone do not define authority or employment status.
3. Cash, services and other contributions
Record expected cash, equipment, intellectual property, introductions, services and opportunity cost. Distinguish a founder contribution from a loan, reimbursable expense, salary, consulting fee or equity purchase.
4. Decision-making and reserved matters
Separate ordinary operating authority from matters requiring board, member or enhanced founder approval. Common reserved matters include new equity, material borrowing, a sale of the company, related-party transactions, changes to founder compensation and a material change in business.
5. Founder equity allocation
An equal split can be appropriate, but it should be a deliberate decision rather than a substitute for discussing contribution, commitment, control and future dilution. The agreement should state whether percentages are pre- or post-option-pool, whether all interests have been issued, whether any founder is contributing cash or IP and how future grants or financing affect ownership.
- Is the company a corporation, LLC or partnership for state-law and tax purposes?
- What stock class or LLC interest is being issued, and is it authorized?
- What consideration is paid or contributed?
- Who approved the issuance and where is it recorded?
- Are any shares or interests subject to vesting, repurchase, forfeiture or transfer restrictions?
- How will an employee option pool or financing dilute the founders?
For Delaware corporations, stock issuance, consideration, transfer restrictions and corporate purchases of stock are addressed in the Delaware General Corporation Law stock provisions. For Delaware LLCs, the LLC agreement can define member, manager, voting and economic rights under the Delaware Limited Liability Company Act.
6. Vesting and reverse vesting
Vesting is a commercial mechanism that ties ownership or economic benefit to continued service or milestones. In a common corporate founder structure, the founder purchases or receives all shares at the outset, but the company has a declining right to repurchase the unvested shares if service ends. This is often called reverse vesting.
A four-year schedule with a one-year cliff and monthly vesting after the cliff is common in venture-backed startups, but it is not required by federal law and may not suit every company. The founders should consider prior service, part-time contributions, milestone vesting, acceleration, leave, death, disability and the intended fundraising timetable.
| Vesting question | Possible choices | Implementation point |
|---|---|---|
| Start date | Formation, grant date or credit for prior service. | Must match the grant or purchase document and cap table. |
| Cliff | None, 6 months, 12 months or another period. | State what happens if service ends before the cliff. |
| Frequency | Monthly, quarterly, annual or milestone-based. | Use a precise schedule rather than a general statement. |
| Acceleration | None, single-trigger, double-trigger or partial. | Define the transaction and termination triggers carefully. |
| Departure treatment | Repurchase of unvested interests; treatment of vested interests. | Specify buyer, price, exercise period, payment and approvals. |
| LLC treatment | Profits interests, capital interests or other membership-interest structure. | Tax and operating-agreement analysis differs from corporate stock. |
7. The section 83(b) election
When substantially nonvested property is transferred in connection with services, a founder may be able to make a section 83(b) election. The election generally causes the founder to include the value of the property at transfer, determined without regard to the lapse restrictions, rather than recognizing income as the property vests. Whether the election is available or beneficial depends on the transaction and tax facts.
The IRS requires an election to be filed no later than 30 days after the property is transferred. Review the current IRS Form 15620, Section 83(b) Election and the IRS discussion of restricted property in Publication 525. Founders should obtain tax advice immediately after a restricted-stock transfer; the founder agreement itself does not make the election.
8. Securities-law compliance
Founder stock, LLC interests, options and other equity are securities. The issuance must be registered or fit an exemption under federal law and any applicable state securities laws. The required exemption, notices and disclosures depend on the security, recipient, consideration and circumstances.
The SEC explains that Rule 701 can exempt qualifying compensatory sales by eligible non-reporting companies to employees, consultants and advisors. The SEC also provides an overview of common startup securities. Rule 701 is not a general capital-raising exemption, and state-law analysis may still be required.
9. Founder departures and repurchase rights
The agreement should address a founder who resigns, is terminated, dies, becomes disabled, breaches duties or stops contributing without formally leaving. “Good leaver” and “bad leaver” labels are not universal US legal categories; the document must define the events and financial consequences precisely.
- What happens to unvested shares or interests?
- Can the company or other owners purchase vested interests?
- What is the purchase price and how is fair market value determined?
- Who decides whether a departure event occurred, and how are conflicts managed?
- How long does the company have to exercise the repurchase right?
- What documents must the founder sign, and what happens if the founder does not cooperate?
- How are board, member, tax and securities steps completed?
10. Governance, deadlock and control
Equity percentage and control are not always the same. Corporations divide authority among stockholders, the board and officers. LLCs can allocate voting and management rights flexibly in the operating agreement. The founder agreement should align with those governing documents rather than attempting to replace them.
For a 50/50 team, a deadlock process may include escalation, mediation, an independent director, a negotiated buy-sell mechanism or a defined exit. A mechanism is useful only if it is legally valid, financially workable and appropriate for the entity.
11. Intellectual property and confidentiality
The company should have a clear chain of title to code, content, designs, inventions, domains, trademarks and other assets. A general statement that “all IP belongs to the company” may be insufficient if the company was formed after the work was created, if a founder used prior-employer materials or if state invention-assignment rules apply.
A static US IP Assignment Agreement on Etsy is also available for a clearly identified transfer. For IP strategy and filings, see Protecting Your Business Name, Logo and IP.
12. Restrictive covenants and solicitation
Confidentiality, customer and employee non-solicitation, non-dealing and non-compete clauses are highly state-sensitive. A restriction that may be enforceable in one state may be prohibited or materially limited in another. Use a founder’s work location, role, governing law and the relevant business interest when assessing the clause; do not rely on a generic nationwide formulation.
13. Future financing, dilution and replacement documents
A founder agreement should anticipate that investment may require a new charter, investor rights, voting arrangements, financing approvals and a new stockholders’ agreement. It should not promise that founder percentages will remain fixed. It should explain how new equity, an option pool, SAFEs, notes or a priced round affect the parties and whether the founder agreement terminates or is replaced.
For founder equity and financing work, see Acquiring Ownership in a Business and Equity Finance and Raising Finance.
Corporation founder equity versus LLC founder equity
| Issue | Corporation | LLC |
|---|---|---|
| Ownership unit | Shares of stock in an authorized class or series. | Membership, capital, profits or other LLC interests as defined by state law and the operating agreement. |
| Core governance | Certificate/charter, bylaws, board and stockholder approvals. | Certificate of formation and LLC operating agreement; member-managed or manager-managed structure. |
| Founder vesting | Often restricted stock subject to company repurchase, or options/other awards. | Can use transfer, forfeiture, repurchase, profits-interest or other tailored mechanisms. |
| Tax analysis | Restricted stock, options, valuation and section 83 may apply. | Partnership tax, capital accounts, profits interests, section 83 and elections can differ materially. |
| Record keeping | Board approvals, stock purchase/grant documents, stock ledger and cap table. | Operating agreement, admission/grant documents, member schedule and tax/capital records. |
| Investor transition | Venture financings often use preferred stock and amended charter documents. | Institutional investors may require conversion or bespoke preferred LLC interests; structure varies. |
Common mistakes with US founder agreements
| Mistake | Why it matters |
|---|---|
| Keeping two overlapping founder articles and templates live | Splits search authority and creates uncertainty about the correct current resource. |
| Treating the founder agreement as the stock or LLC grant | Ownership may not have been validly authorized, issued, recorded or taxed. |
| Calling four years with a one-year cliff a legal requirement | It is a common convention, not a universal rule. |
| Using “forfeiture” without a defined mechanism | The company may lack a valid or workable way to recover unvested interests. |
| Missing the 30-day 83(b) deadline | The founder may lose a potentially available election; the document cannot cure a late filing. |
| Ignoring securities exemptions and state notices | Founder issuances are securities transactions, even when no outside investor is involved. |
| Using the same equity language for a corporation and LLC | The governance, tax, transfer and ownership mechanics differ. |
| Assuming all founder-created IP belongs to the company | Pre-formation work, contractor work and prior-employer restrictions can break the chain of title. |
| Using broad restrictive covenants across all states | Enforceability and statutory restrictions vary materially by state. |
| Failing to update the agreement after funding or role changes | The agreement may conflict with the charter, bylaws, operating agreement or investor documents. |
When should founders put the documents in place?
- Before or immediately after formation and before substantial value is created.
- Before founder stock or LLC interests are issued or made subject to vesting.
- Before the 30-day section 83(b) deadline can begin to run.
- Before founders create or contribute material intellectual property.
- Before one founder leaves a job, invests cash or begins working full-time.
- Before a material customer, accelerator, lender or investor performs due diligence.
- Whenever a founder joins or leaves, the entity changes, or the financing documents replace earlier arrangements.
StartWise, a static template or attorney support?
| Route | When it may fit | Important limitation |
|---|---|---|
| StartWise guided drafting | The team needs a structured way to document founder roles, equity expectations, operating responsibilities, confidentiality and departures. | The current Founders’ Agreement workflow does not issue stock or LLC interests, implement restricted stock, file an 83(b) election or complete securities and tax work. |
| Static Etsy template | The founders have selected the document, the arrangement is relatively straightforward and they are comfortable adapting it. | A template does not determine entity-specific suitability or complete equity, tax, securities, cap-table or state-law steps. |
| Attorney and tax support | Founder equity, vesting, multiple states, LLC tax, stock issuance, financing, complex departures, restrictive covenants or imminent due diligence. | Scope, conflicts, onboarding and fees must be agreed. Tax advice may require a separate tax professional. |
For restricted stock purchase agreements, share vesting agreements, founder term sheets, bespoke LLC equity or financing support, see Business Formation and Business Structure, use the legal-services workspace or contact Entrepreneur Legal US.
Frequently asked questions
Is a founder agreement legally required in the US?
Usually no document with that title is required. The company still needs the formation, governance, ownership, tax, securities and IP documents triggered by its entity and transactions.
Is a founder agreement the same as a stockholders’ agreement?
Not necessarily. A founder agreement focuses on the founding team, while a stockholders’ agreement can govern a broader shareholder group and investor rights. The documents may overlap or one may replace the other.
Can a founder agreement issue stock?
No. Stock issuance generally requires authorized stock, corporate approval, a purchase or grant document, consideration, securities compliance and accurate stock records.
Is four-year vesting with a one-year cliff mandatory?
No. It is a common venture-backed convention. The company may use another schedule if it fits the founders, investors, tax and business plan.
What is reverse vesting?
The founder receives shares or interests at the outset, but the company or another permitted buyer has a declining right to recover the unvested portion if service ends. The mechanism must be documented in the actual equity documents.
When is an 83(b) election due?
Where available and appropriate, the IRS requires filing no later than 30 days after the property is transferred. Obtain tax advice immediately; the founder agreement does not make the election.
Does Rule 701 cover founder stock?
It may cover qualifying compensatory issuances by eligible non-reporting companies, but the facts, recipient, written plan or agreement, limits, disclosures and state laws must be reviewed. It is not a general fundraising exemption.
Can an LLC use a founder agreement with vesting?
Yes, but LLC membership and profits interests require operating-agreement and tax analysis. Corporate restricted-stock language should not be copied into an LLC without adaptation.
Does the founder agreement transfer IP to the company?
It can include assignment language, but a separate IP assignment is often clearer for identified pre-formation or founder-created assets and must comply with applicable law.
Does StartWise provide legal advice?
No. StartWise Drafting is guided, AI-assisted document drafting. Attorney review, consultations and bespoke legal services are separate and require an accepted engagement.
Final founder-agreement checklist
- Choose the entity and governing state before selecting equity language.
- Confirm the authorized equity, actual cap table and formal ownership records.
- Document founder roles, authority, time commitment and contributions.
- Use separate stock or LLC-interest documents to implement ownership and vesting.
- Define vesting, acceleration, departure, repurchase price and exercise procedures precisely.
- Obtain immediate tax advice on valuation and any section 83(b) election.
- Identify and document the federal and state securities exemption.
- Align the agreement with the charter, bylaws or LLC operating agreement.
- Assign founder-created and pre-formation intellectual property to the company.
- Review state-specific restrictive-covenant and employment issues.
- Update or replace the agreement when investors, new founders or financing documents arrive.
Official and related resources
- IRS Form 15620: Section 83(b) Election
- IRS Publication 525: Restricted Property
- SEC: Employee Benefit Plans - Rule 701
- SEC: Common Startup Securities
- Delaware General Corporation Law: Stock and Dividends
- Delaware Limited Liability Company Act
- Delaware LLC Act: Management provisions
- StartWise US Access
- What Legal Documents Does a US Startup Need?
- LLC vs C-Corp for Startups
- Business Formation and Business Structure
- Acquiring Ownership in a Business and Equity Finance
- Raising Finance
- Protecting Your Business Name, Logo and IP
Disclaimer
This article provides general information and is not legal, tax, accounting or investment advice. Founder equity, vesting, repurchase, LLC interests, securities exemptions, restrictive covenants and tax elections are fact- and state-specific. Obtain appropriate legal and tax advice before issuing or changing equity or relying on a founder agreement.
StartWise Drafting is a guided, AI-assisted document-drafting workflow. It is not legal advice, attorney review, legal approval or legal sign-off. Generated documents are based on user inputs and should be reviewed before use. Attorney review, legal consultations and bespoke legal services are separate services and are provided only where expressly agreed.
No attorney-client relationship is created by creating a StartWise account, using StartWise Drafting, purchasing drafting credits, joining membership or generating a document. An attorney-client relationship is created only where legal services are expressly agreed, applicable conflict and onboarding procedures have been completed and the engagement has been accepted by the responsible law firm.
Law Offices of Gabriel C. Mbanefo, P.C. d/b/a Entrepreneur Legal | https://us.entrep.legal/ | hello@us.entrep.legal
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