Y Combinator Advisor Agreement: Practical Guide for Startups

Quick answer: founders often search for a “Y Combinator advisor agreement,” but an advisor agreement is separate from Y Combinator’s SAFE fundraising documents. A useful advisor agreement should define the advisor’s role, time commitment, deliverables, confidentiality, intellectual-property treatment, compensation, vesting, termination and conflicts of interest.

This guide explains how a YC-style startup can structure that relationship without confusing an advisor grant with an investment. It is general information, not legal or tax advice. Ask qualified counsel to adapt any agreement to your company, jurisdiction and equity plan.

Is there an official Y Combinator advisor agreement?

Y Combinator publicly provides SAFE documents for startup fundraising. A SAFE is an agreement between a company and an investor: the investor provides funding now in exchange for rights to future equity. It is not an advisor-services agreement.

For an advisor relationship, use an advisor-specific contract. One well-known public reference is the Founder Institute’s FAST (Founder / Advisor Standard Template). Treat any template as a starting point, not a substitute for legal review.

What a startup advisor agreement should cover

1. Scope and expected contribution

Describe the problem the advisor is expected to help solve. Avoid a vague promise to “advise the company.” A better scope identifies the relevant area—such as enterprise sales, product strategy, hiring, regulation or fundraising—and the expected activities.

Meeting cadence and approximate hours per month
Specific introductions, reviews or strategic sessions
Who owns follow-up actions
How the company and advisor will measure progress
Any activities that are explicitly outside the role

Start with a short trial project or a few working sessions before offering a long-term equity grant. This helps both parties test usefulness, responsiveness and working style.

2. Term and termination

State when the engagement begins, how long it runs and how either party can end it. The agreement should also explain what happens to unvested compensation after termination and which obligations—such as confidentiality—continue afterward.

A regular review every three or six months prevents an inactive advisor relationship from continuing simply because nobody revisits it.

3. Compensation and vesting

Advisor compensation can be cash, equity or a combination. Equity should normally vest over time or against clearly defined milestones instead of being granted fully on day one. Vesting protects the company if the relationship ends early and gives the advisor a reason to remain engaged.

Do not copy a percentage from an old blog post without context. The appropriate grant depends on company stage, expected workload, advisor impact, dilution, local tax treatment and the type of equity instrument available. The current FAST framework illustrates a broad range from 0.10% for a standard Series A engagement to 1.00% for an expert pre-seed engagement, with two-year vesting. Those figures are reference points, not universal market rules.

Before approving a grant, model its fully diluted impact on the cap table and confirm the necessary board, shareholder and equity-plan approvals.

4. Confidentiality and information access

Advisors may see product roadmaps, customer information, pricing, financial projections or fundraising plans. Define confidential information, permitted use, security expectations and exceptions for information already public or independently known.

Give advisors only the access they need. Confidentiality language is useful, but sensible access control remains important.

5. Intellectual property

Clarify who owns materials created during the engagement and whether the advisor is expected to assign relevant intellectual-property rights. This matters when an advisor contributes product specifications, code, research, designs or written material rather than general strategic advice.

The agreement should also protect the advisor’s pre-existing knowledge and materials. Overly broad clauses can create unnecessary disputes.

6. Conflicts and authority

Ask the advisor to disclose relevant investments, board roles, clients and competing engagements. State that the advisor cannot bind the company, make promises on its behalf or present themselves as a director or employee unless separately authorized.

A practical negotiation process

Define the need. Write down the most important outcome you want from an advisor during the next six months.
Test the relationship. Complete a small, concrete project before discussing a substantial grant.
Agree on operating rhythm. Set meeting frequency, preparation expectations and response times.
Choose compensation deliberately. Compare cash and equity, model dilution and connect vesting to continued contribution.
Document the complete deal. Include confidentiality, IP, conflicts, termination and required approvals—not only the equity percentage.
Review with counsel. Corporate, securities, employment and tax rules vary by jurisdiction.
Revisit performance. Review the relationship against the agreed outcomes and adjust or end it when necessary.

Common mistakes to avoid

Calling a SAFE an advisor agreement. A SAFE is designed for investment, not payment for advisory services.
Granting equity before testing the relationship. Reputation alone does not prove that an advisor will contribute.
Using a generic scope. If expectations cannot be measured, neither party can evaluate performance fairly.
Ignoring vesting and termination. A fully vested upfront grant leaves little protection if the advisor disappears.
Skipping company approvals. An informal promise of equity may not create a valid grant.
Overlooking tax and securities consequences. The same economic deal can be treated differently across jurisdictions and instruments.
Using fabricated success stories. Practical clauses and verifiable sources are more useful than anonymous examples that readers cannot assess.

Advisor agreement checklist

Legal names of the company and advisor
Effective date and engagement term
Services, deliverables and time commitment
Meeting and reporting cadence
Cash or equity compensation
Equity instrument, amount, vesting and approval conditions
Expense policy
Confidentiality and data handling
Intellectual-property ownership
Conflicts of interest and non-authority language
Termination rights and post-termination treatment
Governing law and dispute process
Signatures and required corporate approvals

Frequently asked questions

How much equity should a startup advisor receive?

There is no single correct percentage. Consider stage, contribution, time, scarcity of expertise and dilution. The FAST framework provides transparent reference points between 0.10% and 1.00% across its listed stages and engagement levels, but your company may justify a different result.

How long should advisor equity vest?

A multi-year schedule with periodic vesting is common because it links compensation to continued contribution. FAST uses two years in its current framework. The appropriate schedule and any cliff should match the expected engagement and be reviewed by counsel.

Should an advisor sign an NDA?

The advisor agreement can include confidentiality terms, or the parties can use a separate NDA. The important point is to define protected information and permitted use while avoiding language so broad that it conflicts with the advisor’s existing work.

Can an advisor make introductions to investors or customers?

Yes, if introductions are part of the agreed scope. Be specific about the target profile and desired outcome, prepare a concise forwardable introduction and report back. Never imply that the advisor guarantees financing, sales or regulatory approval.

Key takeaway

A strong startup advisor agreement is an operating document, not a trophy. It should make the relationship easy to understand, measure and end. Keep the scope concrete, tie compensation to contribution, distinguish advisor equity from YC SAFE financing, and have the final terms reviewed for your jurisdiction.