How can co-founders fairly handle equity and responsibilities when one person contributed the original idea but the other handles most of the ongoing execution?

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Hi,

I’ve spent years mentoring startups, and I always joke that I thought I’d be advising on tech stacks and marketing. Instead, most of my time is spent doing marriage counseling. Because that’s exactly what a co-founder relationship is.

Here is the hard truth: ideas are easy. Execution is what actually matters. A 50/50 split only works if you both pull equal weight. Right now, you are carrying the entire business on your back, and that is a recipe for resentment.

You need to have the hard talk. But don't frame it as an accusation. Sit down with your friend and lay out the reality of what it takes to run this company daily. Ask her honestly: with her other jobs, does she realistically have the hours to commit to this? Having the idea is worth a very small percent - actually figuring out how to make it work is almost the entirety of what it means to be a founder.

I suggest you distinguish between three things: ownership, roles, and compensation. Say: “I love doing this with you, but the current 50/50 setup doesn’t match the time, risk, and responsibility right now. Let’s design something fair before resentment poisons our friendship.”

Then propose some options: To start, you each should be vesting - so that if one of you leaves, the equity you take with you reflects the time they spent with the company. Or you could have your founder shares only represent 50% of the total, split that 50/50, and allocate the remaining 50% to whomever is doing the work. Or have your shares be greanted commensurate with our spent each month. She should certainly keep some founder equity for her idea/design/supplier role, but future equity vests only if she commits specific weekly hours, response times, and deliverables.

The key is not “you’re not helping.” It’s “the business needs commitments it can count on.”

Best friends can be great co-founders. But only if the agreement is honest enough to survive reality.If you handle this with respect and kindness, you can protect the friendship. But you cannot keep carrying dead weight.

I'm going to try to get a community member to join his conversation ... she just won't through a difficult co-founder breakup over exactly this issue.