Questions to Discuss Before Joining a Startup as a Cofounder

Understand the problem and the evidence

Ask who the intended users are, what problem they face, and what the team has done to understand it. Learn which assumptions have been tested and which are still guesses. You do not need complete certainty, but you should know what the team plans to learn next.

• What have users said or done that supports this direction?
• What is the next meaningful product milestone?
• What would cause the team to change course?

Make roles and decision making explicit

Discuss who owns product, engineering, customer discovery, sales, operations, and hiring today. Roles will change as the company grows, so agree on how you will revisit responsibilities when the work changes.

Talk through how you will make decisions when you disagree. Clarify which decisions need joint agreement, who can decide day to day, and how unresolved disagreements will be handled.

Compare expectations and constraints

Be honest about hours, location, communication habits, outside commitments, financial needs, and how long each person can work under current conditions. A mismatch in availability is easier to address before it becomes a missed expectation.

Ask what each person needs from the partnership to do their best work. Discuss feedback, conflict, and how you will raise concerns early rather than letting them become personal.

Document important agreements with appropriate advice

If you discuss equity, compensation, intellectual property, company ownership, or exit scenarios, record the questions and seek qualified legal and financial advice for your situation. Terms depend on the people and jurisdiction involved; a general article cannot determine what is right for your company.

Before committing, make sure each person can explain the same understanding of responsibilities, time commitment, decision rights, and next steps. Then agree on a short review point to check whether the partnership is working as expected.