Co-founder equity structure in India: Why a co-founders’ agreement may not be enough

The co-founder agreement is the easy part. The hard part is making sure the AOA, the shareholders’ agreement, and the cap table can actually deliver the outcome the agreement promises, particularly when a co-founder leaves.

A co-founder equity structure India founders often inherit from templates or peer advice tends to fail at exactly the moment it is needed most: a separation, a buyout, or a restructuring after external capital comes in. The agreement says one thing, the corporate documents say another, and the tax and FEMA rules dictate the actual commercial outcome. In this blog, we walk through the structural choices at incorporation, the exit routes when a co-founder leaves, and the tax and regulatory price tag on each.

Why a co-founder agreement alone will not protect the cap table

A co-founder agreement is a contract between founders. It is not a corporate action mechanism. The company and other shareholders are not bound by it unless the same rights and obligations are written into the Articles of Association and the shareholders’ agreement.

Take the most common example. The co-founder agreement says “if a founder leaves within four years, unvested shares revert to the company.” If the AOA does not contain a share repurchase right tied to this trigger, the leaving founder can simply refuse to transfer the shares. The remaining founders are left with a damages claim under contract law, not the shares back.

Indian courts have been reluctant to grant specific performance of share transfer obligations where the AOA does not authorise the repurchase, particularly post the V.B. Rangaraj line of decisions on the supremacy of the AOA over private agreements.

The fix is structural, not contractual. Founder vesting, leaver provisions, drag-along, tag-along, ROFR and ROFO must live in the AOA, with the SHA providing the inter-shareholder mechanics. The co-founder agreement then becomes a layered document: the founder-employee terms, the IP assignment, the non-compete, the conduct expectations. The corporate enforcement engine sits in the AOA and SHA.

This matters even more once a venture investor comes in. A Series A investor will not rely on a side agreement between founders to enforce founder retention. The investor will demand that founder vesting, share repurchase rights on departure, and bad-leaver mechanics are baked into the Articles, with the SHA carrying matching consent rights. Founders who arrive at Series A with only a co-founder agreement end up redrafting from scratch, often on terms less favourable than they would have negotiated at incorporation.

What the co-founder equity structure should look like at incorporation

The day-zero structuring decisions outlast almost everything else. Here is what a co-founder equity structure India founders should actually start with looks like.

The split itself. Equal splits are popular and usually wrong. A 50:50 between two co-founders creates a deadlock with no tiebreaker. A 33:33:33 between three creates the same problem with extra steps. The fix is either a small differentiation (51:49, or 34:33:33) or a casting vote in the AOA for a designated CEO-founder. Differentiation should reflect actual contribution, opportunity cost, and full-time commitment, not just who came up with the idea.

Reverse vesting. The standard Indian construct is reverse vesting: founders are issued the full equity upfront, but the AOA gives the company a right to repurchase a defined portion at par value (or a nominal price) if the founder leaves before the vesting period ends. Four years with a one-year cliff is the market standard. The repurchase right needs to be in the AOA, not just the SHA, to be enforceable against the founder’s shares.

One issue reverse vesting structures rarely address upfront: the AOA may allow the company to buy back a bad leaver’s shares at par value, but the income tax rules will still tax the departing founder as if they received full market value. The gap between what they actually receive and what they are taxed on can be significant. Who bears that cost, and how, is worth agreeing at incorporation.

IP, non-compete, and employment. Founder share allocation should be conditional on signing a founder employment or consultancy agreement that contains the IP assignment, the non-compete (subject to enforceability limits under Section 27 of the Indian Contract Act, which restricts post-employment non-competes), and the non-solicit. Without IP assignment, the company does not own what the founder built. This is the single most expensive oversight in early-stage Indian startups.

ESOP pool, carved out early. A 10 to 15% ESOP pool, created and approved before the first external round, is standard. Carving it out post Series A means founders bear the dilution alone instead of sharing it with the new investor, since term sheets typically require the pool top-up to come pre-money.

Founder share class and rights. Most early-stage Indian startups issue founders ordinary equity. As the cap table matures, some structures introduce a separate founder class with weighted voting on specified matters, though this requires careful drafting under Section 43 of the Companies Act 2013.

What actually happens when a co-founder exits

When a co-founder exits, there are broadly three ways to structure it: secondary sale to an incoming investor or third party, buyback by the company, or share transfer to remaining co-founders. Each has a different cap table consequence, a different tax treatment, and a different regulatory load. The right choice depends on who is buying, what the SHA permits, and what the founders are trying to achieve on the cap table.

One threshold point before walking through the routes: most Series A SHAs require investor consent for any founder share transfer or buyback above a defined threshold. The exit route is rarely the founders’ choice alone. Walking through the SHA consent mechanics before initiating anything is the first step, not an afterthought.

Route 1: Secondary sale to an incoming investor or third party

This is usually the cleanest route. The exiting co-founder sells their shares to an incoming investor (often as part of a primary-plus-secondary round) or a strategic third party. The company is not a party to the transaction. No dilution to other shareholders, since the cap table percentages stay intact. The exiting co-founder gets liquidity in their personal hands. The new investor gets a meaningful stake without the company having to issue fresh shares.

What the SHA must permit. Pre-emptive rights, ROFR, ROFO and tag-along rights typically attach to founder shares. The exiting co-founder cannot just transfer to a third party without offering the shares first to the existing shareholders or obtaining waivers. Most well-drafted SHAs carve out an exception for sales as part of a board-approved fundraising round, which is how secondary transactions usually clear the consent gates.

Tax treatment, seller side. The exiting co-founder pays capital gains under Section 67 of the Income-tax Act, 2025 (Section 45 of the Income-tax Act, 1961). Holding period for unlisted shares is 24 months for long-term classification. Long-term capital gains on unlisted shares are taxed at 12.5% under Section 197 of the ITA 2025 (Section 112 of the ITA 1961) without indexation. Short-term gains are taxed at the applicable slab rate.

Two tax traps apply on pricing. If shares are transferred below fair market value computed under Rule 11UA of the Income-tax Rules, 1962, Section 73 of the ITA 2025 (Section 50CA of the ITA 1961) deems the consideration to be FMV in the seller’s hands, and Section 92 of the ITA 2025 (Section 56(2)(x) of the ITA 1961) taxes the shortfall as income from other sources in the buyer’s hands. Both provisions apply to the same transaction, from opposite sides. A Rule 11UA-compliant valuation report, referenced against the Income-tax Rules 2026 as notified, is non-negotiable before pricing is agreed.

FEMA layer, if a non-resident is involved. If the buyer is non-resident, the transaction is a transfer from resident to non-resident under the Foreign Exchange Management (Non-debt Instruments) Rules, 2019. Pricing must comply with the entry pricing guidelines (price not less than FMV computed under internationally accepted methodology). Reporting via Form FC-TRS within 60 days of receipt of consideration. If the seller is non-resident exiting to a resident buyer, the same rules apply with the pricing direction reversed (price not more than FMV).

Stamp duty. Transfer of shares typically attracts stamp duty under the Indian Stamp Act 1899, depending on the state, generally at 0.015% of consideration.

Route 2: Buyback by the company

Buyback is the route most founders reach for first and the one that disappoints most often. After Finance Act 2026, the disappointment now has a tax cost.

Companies Act limits. Section 68 of the Companies Act 2013 caps buyback at 25% of paid-up capital plus free reserves in a financial year, with a separate cap that the buyback in any year cannot exceed 25% of paid-up equity capital. Post-buyback debt-equity ratio must not exceed 2:1. There is a one-year cooling-off period between two buybacks. Procedural load includes a special resolution under Section 68(2) (or a board resolution if buyback is up to 10%), filing of SH-8 and SH-9 with the Registrar, declaration of solvency, and SH-11 return of buyback within 30 days of completion.

The proportional dilution problem. In a 30/30/30 plus 10% ESOP scenario, a 30% buyback moves the remaining co-founders from 30% each to roughly 43%, and the ESOP from 10% to roughly 14%. If a Series A investor at 15% is on this cap table, they also move from 15% to roughly 21%. The buyback consolidates partially among founders but also enlarges the investor’s stake. If consolidation among founders was the goal, secondary almost certainly serves it better.

The Finance Act 2026 shift. From 01 April 2026, buyback proceeds are taxed as capital gains in the shareholder’s hands under Section 69 of the ITA 2025 (Section 46A of the ITA 1961), not as deemed dividend. Section 69 imposes an additional tax on promoter buybacks designed to take the effective rate to 22% for corporate promoters and 30% for non-corporate promoters (i.e., individuals).

The cap. Even setting aside tax, Section 68’s 25% ceiling on buyback in a year often cannot accommodate a co-founder holding 30% or more. The structure may need to combine a partial buyback with a secondary.

Route 3: Share transfer to remaining co-founders or company nominee

Conceptually clean: the exiting co-founder sells directly to one or more remaining co-founders. In practice, this route fails on liquidity. Remaining co-founders rarely have the personal cash to buy out a departing co-founder’s stake at FMV. A 30% stake in a venture-backed company at Series A pricing could be a significant personal expenditure. Founders typically do not have this cash.

Where it works: small holdings (a co-founder with 5 to 10%), early-stage companies before significant valuation appreciation, or where a friendly third party finances the buyout.

Tax treatment. Same as secondary in Route 1. Capital gains under Section 67 of the ITA 2025 (Section 45 of the ITA 1961) in the seller’s hands. Section 73 of the ITA 2025 (Section 50CA of the ITA 1961) FMV deeming if priced low. Section 92 of the ITA 2025 (Section 56(2)(x) of the ITA 1961) gift tax risk on the buyer side. Rule 11UA valuation needed. FEMA pricing and FC-TRS reporting if either side is non-resident. Stamp duty on transfer.

SHA mechanics. ROFR/ROFO usually applies first to existing shareholders, which is how this route gets initiated. The remaining co-founders accept the offer at the proposed price (or trigger a valuation mechanism in the SHA) and the transfer proceeds.

What founders and early investors should actually do

• Get the SHA and AOA right at seed, not at Series A. Retrofitting founder vesting, leaver provisions, and share repurchase rights at Series A means doing it under investor pressure, on terms not negotiated by you. Doing it at seed costs a fraction and leaves you in control of the drafting.
• Build good leaver and bad leaver mechanics into the AOA. The leaver framework (good leaver gets vested shares plus a defined consideration, bad leaver gets only paid-up value or par) is the operational backbone of founder vesting. Without it, vesting is a slogan.
• Model at least one co-founder exit scenario before signing the SHA. Run the numbers on a 30/30/30 plus ESOP, plus a hypothetical Series A investor. See what each exit route does to the cap table. The model surfaces the proportional dilution problem before it hits you in real life.
• Align all the documents. Co-founder agreement, SHA, AOA, founder employment agreements, ESOP plan, IP assignment. They must say the same thing. Conflicts between documents are exploited at the worst possible moment.

Investors should also pressure-test the founder structure during diligence. A founder cap table without enforceable vesting, without good leaver mechanics in the AOA, without IP assignment, and without aligned employment agreements is a structural risk that will surface eventually. Fixing it pre-investment, when founders are motivated to close, is dramatically easier than fixing it after a co-founder dispute breaks out.

FAQs on Co-founder equity structure in India

Q: Can a co-founder be removed if there is no shareholder agreement?

A: Removal as a director follows Section 169 of the Companies Act 2013, which allows shareholders to remove a director by ordinary resolution after special notice. Removal as a director does not extinguish the co-founder’s shareholding. Without an SHA or AOA-backed share repurchase right, the removed founder keeps their shares and the resulting cap table tension remains.

Q: What is the tax on a co-founder buyback in India in 2026?

A: For buybacks on or after 01 April 2026, proceeds are taxed as capital gains in the shareholder’s hands under Section 69 of the Income-tax Act, 2025 (Section 46A of the 1961 Act). Co-founders typically meet the promoter test (under Section 2(69) of the Companies Act or the over 10% shareholding threshold in Section 69 of the ITA 2025) and pay an additional tax that takes the effective rate to roughly 30% for individuals and 22% for corporate promoters.

Q: How does FEMA apply when a non-resident co-founder exits?

A: The transfer is governed by the Foreign Exchange Management (Non-debt Instruments) Rules, 2019. Pricing must follow the exit pricing guideline (consideration not more than FMV under internationally accepted methodology). Reporting via Form FC-TRS within 60 days of receipt of consideration. The Authorised Dealer bank handles the filing, but the parties remain liable for accuracy.

Q: Can a co-founder agreement override the AOA?

A: No. The AOA is the constitutional document of the company and prevails. Any provision in the co-founder agreement that is not mirrored in the AOA may not be enforceable against the company or other shareholders.

Conclusion

A co-founder equity structure India founders can rely on is one where the agreement, the AOA, the SHA, the employment terms, and the ESOP plan all say the same thing. The exit route choices, whether secondary, buyback, transfer, or capital reduction, each carry a different regulatory load and a different tax bill. Picking the right route before the exit, not during it, is what separates clean co-founder transitions from messy ones.

Note: Tax rates referenced in this blog are as per the Income-tax Act, 2025, applicable from 01 April 2026, and are exclusive of applicable surcharge and health and education cess.