How to Split Equity With a Co-Founder in India (and Put It in Writing)

Splitting equity is the conversation most co-founders put off, and the one that causes the most damage when it goes wrong. It feels awkward to talk about ownership before there's a product, so founders shake hands on "we'll figure it out later." Later is when someone has quit, a company has been registered and an investor is asking who owns what.

This guide walks through how to decide a split, how vesting protects everyone, how it's usually done in an Indian private limited company, and what belongs in your founders' agreement. It's a practical starting point, not legal advice: have a startup lawyer or CA review your final documents.

Start with the future, not the past

The most common mistake is splitting equity by who had the idea or who started first. Those things matter, but a little. Almost all of a startup's value is created over the next four or five years, by the people who keep showing up.

So the useful question is: what will each of us contribute from here? If two founders will both work full-time, take similar risks and own critical parts of the company, a near-equal split is common and avoids resentment later.

What to weigh when the split isn't equal

Real differences can justify an unequal split. Write them down and talk them through:

Factor	Ask yourselves
Time commitment	Will everyone be full-time from day one, or is someone part-time for months?
Risk taken	Who is giving up a salary, a job offer or a placement?
Role from here	Who owns product, engineering, sales or fundraising, and how hard is that role to replace?
Capital	Is anyone putting in money? Consider treating it as a separate investment rather than extra founder equity.
Work already done	A working prototype or early customers count, but less than the years ahead.

A simple exercise: each founder scores every factor on their own, then you compare. The goal isn't a perfect formula, it's a split that everyone can explain and defend a year from now.

A note on late co-founders

Someone who joins six or twelve months in, after the idea has been tested, usually gets less than the founders who started from zero, because some of the risk has already been taken. Agree the number before they start, not after their first month.

Always use vesting

Vesting means founders earn their equity over time instead of owning all of it on day one. A widely used structure is four years with a one-year cliff:

• If a founder leaves in the first year, they keep none of the vesting shares.
• After the first year, a quarter has vested; the rest vests monthly or quarterly over the next three years.

Vesting doesn't mean you distrust each other. It protects the founder who stays: without it, someone who leaves after three months could walk away owning a large part of a company they no longer help build.

Some agreements add acceleration: unvested shares vest early if the company is acquired, sometimes only if the founder is also let go after the acquisition. Discuss it, but don't let it hold up the basic structure.

How vesting usually works in India

In an Indian private limited company, founders are normally allotted their shares when the company is incorporated, so they own them from day one. Vesting is therefore usually set up as reverse vesting: the shareholders' agreement (and the company's articles of association) say that if a founder leaves, the company or the other founders can buy back or take a transfer of the shares that haven't vested yet, at a price agreed in advance.

Two terms you'll see:

• Good leaver: someone who leaves for reasons such as illness. They often keep their vested shares.
• Bad leaver: someone who leaves in breach of the agreement or is removed for cause. Terms are usually stricter.

The exact mechanics depend on how your documents are drafted, which is why a lawyer or CA should set them up.

What to put in your founders' agreement

Whether it's called a founders' agreement or a shareholders' agreement, it should cover:

• Equity and vesting: who owns what, the vesting schedule, the cliff and what happens to unvested shares.
• Roles and titles: who decides on product, technology, hiring and money.
• Decision-making: which decisions need everyone's approval, and how you break a deadlock.
• Time commitment: full-time or not, and from when.
• Intellectual property: everything built for the startup, including code written before incorporation, belongs to the company.
• Salaries and expenses: when founders start drawing a salary, and how expenses are approved.
• Exit and transfers: what happens if someone leaves, and whether founders can sell shares to outsiders.
• Confidentiality and non-solicitation: what each founder can't take or do if they leave. Post-exit non-compete clauses are hard to enforce in India, so get advice on how to word them.

Leave room for your first hires

Your first engineers, designers and operators often join for equity as much as salary. Many startups set aside an employee stock option pool (ESOP) for them. Decide early whether the pool comes out of the founders' shares now or is created later, because it changes everyone's percentage.

Mistakes to avoid

• Waiting until incorporation or a fundraise. By then positions have hardened and someone feels short-changed.
• Relying on a verbal deal. Memories differ, especially when things go well or badly.
• Skipping vesting because it feels awkward between friends.
• Paying advisors or agencies in large chunks of equity. Small, vested grants are safer.
• Treating the split as permanent truth. It reflects what you expect today. Changing it later needs everyone's agreement, so get it roughly right now.

FAQ

Is a 50/50 split a bad idea?

Not by itself. If both founders contribute equally from here, it's a fair and common choice. The risk is deadlock, so pair an equal split with a clear way to resolve disagreements.

Should the founder who had the idea get more equity?

Usually only a little. Ideas are cheap without execution. Credit the idea person for real work already done, such as research, a prototype or early users, rather than the idea alone.

Do we really need a lawyer?

For anything you sign, yes. A short review by a startup lawyer or CA costs far less than an unresolved dispute between co-founders.

What happens if a co-founder leaves in the first year?

With a one-year cliff, they usually leave with none of their vesting shares, and those shares can be bought back or reallocated as your agreement says. Without vesting, they may keep everything, which is exactly why vesting matters.

The bottom line

Decide the split early, base it on what each founder will contribute from here, put every founder on vesting, and write it all down in an agreement a professional has reviewed. It's one uncomfortable afternoon that protects years of work.

Still looking for the right person to build with? Read how to find a technical co-founder in India, test your idea with other builders on IdeaHub, and when you're ready, post it with the roles you need on Team+. Posting ideas and sending join requests on Team+ is part of Pro.