Founder Vesting In New Zealand: Structuring Vesting Schedules In Agreements

If you’re building a startup or small business with co-founders, equity can be the glue that keeps everyone aligned. But it can also become the biggest source of conflict when things change (and in early-stage businesses, things change fast).

That’s where founder vesting comes in.

In this guide, we’ll break down founder vesting in New Zealand in plain English: what it is, why it matters, what vesting schedules typically look like, and how you can document vesting properly in your founder and shareholder documents so your business is protected from day one.

What Is Founder Vesting (And Why Does It Matter In New Zealand)?

Founder vesting is a structure that makes a founder’s right to keep their shares (or earn their shares) conditional on them staying involved in the business for a certain period, or meeting certain milestones.

In practical terms, vesting is designed to solve a really common problem:

• You and your co-founder agree to split the company 50/50.
• Six months later, one founder leaves (or stops contributing).
• They still legally own their full 50%.
• You’re now running the company while the “inactive founder” holds a big chunk of equity.

This is often referred to as “dead equity” and it can create major issues for:

• Decision-making (they can vote as a shareholder even if they’re no longer involved)
• Raising capital (investors often won’t proceed if the cap table is messy)
• Team morale and fairness (especially if one person is doing all the work)
• Exit planning (buyers don’t like uncertainty about who really “owns” the business)

Founder vesting is common in venture-backed startups, but it’s just as useful for smaller businesses that want to grow sustainably and avoid disputes down the track.

In New Zealand, vesting isn’t a single “statutory” concept (there isn’t one vesting law that sets the rules). Instead, vesting is implemented through contracts and company documentation, and it needs to be structured carefully so it’s enforceable and workable with your company’s share structure and governance.

Where Do You Put Vesting Terms: Founder Agreement, Shareholders Agreement, Or Both?

One of the biggest mistakes we see is founders thinking vesting is “just a handshake” or a line in a pitch deck.

If you want vesting to protect the business, it needs to be properly documented in the right places. In New Zealand, vesting terms are commonly dealt with through:

• a Founder Agreement (to record the commercial deal between founders early on)
• a Shareholders Agreement (to govern ownership, exits, and what happens if someone leaves)
• your company’s constitution (if you have one) and/or share-related documents (so the legal mechanics match your cap table and Companies Office records)

As a rule of thumb:

• Founder Agreement: great for documenting the early-stage “who’s doing what” and “how equity is earned” arrangement, especially before shares are issued in full or while you’re still finalising structure.
• Shareholders Agreement: essential once shares are actually issued and you need enforceable rules around transfers, leavers, and buybacks.

It’s also common to align vesting with governance documents like a Company Constitution, especially where you want the company itself (not just the other shareholders) to have certain rights or controls.

The right approach depends on whether:

• the company is already incorporated and shares are already issued;
• your “vesting” is actually an option to receive shares later (rather than owning shares now); and
• you need to consider future investors, employee equity, or different share classes.

If you’re unsure, it’s worth getting tailored advice early. Fixing a broken equity structure later is usually far harder (and more expensive) than setting it up properly now.

Common Vesting Structures In NZ (Time-Based, Milestone-Based, And Hybrid)

There isn’t a single “best” vesting schedule. What works for your business depends on your industry, runway, funding plans, and each founder’s role.

That said, there are a few vesting structures we commonly see used in New Zealand businesses.

Time-Based Vesting (The Most Common Approach)

Time-based vesting means a founder earns (or keeps) shares gradually over time, provided they remain involved.

A classic example is:

• 4-year vesting
• with a 12-month “cliff”
• then vesting monthly or quarterly after the cliff

How that works in plain English:

• If a founder leaves before 12 months, they don’t vest anything (or they may have to transfer back all “unvested” shares).
• Once they hit 12 months, a chunk vests at once (often 25%).
• The remaining portion vests gradually over the remaining 3 years.

This is popular because it rewards commitment and gives the business time to see whether the founder relationship is working.

Milestone-Based Vesting

Milestone-based vesting ties equity to results rather than time. For example, shares might vest when:

• a product reaches a certain launch stage
• a certain revenue target is hit
• a key licence or regulatory approval is obtained
• a minimum capital raise is completed

This can work well where founders contribute in very different ways (for example, one is building the product while another is building sales channels).

The risk is that milestones can be ambiguous or disputed later. If you use milestone vesting, the milestones need to be written clearly and objectively so it’s obvious whether they’ve been met.

Hybrid Vesting (Time + Milestones)

A hybrid model can combine time-based vesting with milestone conditions. For instance:

• 25% vests after 12 months of service, and
• the next 25% vests after a product launch, and
• the remaining 50% vests monthly over the next 2–3 years

This approach can be a good “best of both worlds” option, but it does need careful drafting to avoid confusion about what happens if milestones are delayed, or if the business pivots.

How To Set A Vesting Schedule: Cliff Periods, Leaver Rules, And Acceleration

When founders talk about vesting, they often focus on “4 years with a 1-year cliff” and stop there. But the legal strength of founder vesting in New Zealand usually comes down to the details around what happens when someone leaves.

Here are the core design choices you’ll want to think about.

1. The Cliff

The cliff is the initial period where nothing vests. If the founder leaves during the cliff, the company (or the other shareholders) can usually reclaim all unvested equity.

A cliff is useful because it:

• reduces the risk of a founder leaving early with meaningful equity; and
• gives you a practical “trial period” for the founder relationship.

2. Vesting Frequency

After the cliff, vesting often happens:

• monthly (common for startups)
• quarterly
• annually

Monthly vesting is popular because it’s smooth and reduces “cliff-edge” disputes, but it also means you need clear admin processes to track what has vested and what hasn’t.

3. Good Leaver vs Bad Leaver (And Why This Matters)

Most vesting clauses tie into a leaver framework. In simple terms:

• A good leaver might be someone who leaves due to illness, incapacity, redundancy, or by mutual agreement.
• A bad leaver might be someone who resigns abruptly, is removed for serious misconduct, or breaches key obligations (like confidentiality).

Leaver provisions typically determine:

• whether unvested shares must be transferred back;
• how vested shares are treated; and
• what price is paid for shares that are bought back (fair value, nominal value, or a formula).

Getting this wrong can either make vesting toothless (if you can’t practically recover the equity) or overly harsh (which can create disputes and reputational damage).

4. Acceleration (What Happens If You Sell The Business?)

Acceleration clauses deal with what happens to unvested equity if there’s a major event, like:

• the company is sold, or
• a new investor acquires control, or
• the company undergoes a restructure

Common acceleration models include:

• Single-trigger acceleration: vesting accelerates automatically on a sale/control event.
• Double-trigger acceleration: vesting accelerates only if there’s a sale and the founder is terminated or forced out within a set period after the sale.

Acceleration can be attractive to founders, but it can also affect buyer negotiations. If you think an exit is likely in the medium term, it’s worth discussing these settings early and documenting them clearly.

The Legal Mechanics: How Vesting Actually Works With Shares In NZ Companies

Here’s the part that often surprises business owners: “vesting” can be implemented in different legal ways, and the right option depends on how your company is structured and what you’re trying to achieve.

Common legal mechanisms include:

Issuing Shares Upfront, Then Having A Buyback/Transfer Right For Unvested Shares

Under this model, a founder receives all their shares at the start, but agrees that:

• some shares are treated as “unvested” for a period; and
• if they leave early, those unvested shares must be transferred back (or bought back).

This can be practical, but the documents must clearly set out:

• who can force the transfer/buyback (the company, other shareholders, or both)
• how the price is calculated
• timeframes and mechanics for completing the transfer

In New Zealand, you’ll also want to make sure the mechanics are compatible with the Companies Act 1993 and your constitution (if you have one). For example, a company share buyback generally needs to follow statutory buyback procedures and satisfy solvency requirements, and some constitutions/shareholder arrangements can restrict transfers or require director/shareholder approvals. These details matter, because they can determine whether the business can actually “claw back” unvested shares in practice.

Using Options Or A Separate Vesting Instrument

Instead of issuing all shares at the start, the company may grant the founder an option or right to receive shares over time.

This approach is often used when you want to avoid the complexity of clawing back shares, because unvested shares were never issued in the first place.

However, the option terms need to be drafted carefully and aligned with your overall equity plan. In some cases, an Option Deed is used to document the details properly.

Linking Vesting To The Cap Table And Governance Documents

Whatever method you choose, vesting needs to “match” the rest of your legal setup, including:

• your shareholding structure
• your constitution (if you have one)
• your shareholder decision-making rules
• any future fundraising plans (where investors may ask for founders to be subject to vesting)

If your documents don’t line up, you can end up with a vesting clause that looks good on paper but is hard to enforce in real life.

Because equity arrangements can also have tax and accounting implications (including for share issues, options, and valuation), it’s a good idea to get advice from an accountant or tax adviser alongside legal advice when you’re setting vesting up.

Common Mistakes With Founder Vesting (And How To Avoid Them)

Founder vesting is meant to prevent disputes, not create them. Here are some of the most common pitfalls we see when businesses try to implement founder vesting in New Zealand.

1. Agreeing Vesting Terms But Not Documenting Them Properly

If vesting isn’t written into a signed agreement (and structured in a way that works with your company’s share mechanics), it can be difficult to enforce. That’s when you end up in expensive negotiations later, often at the worst possible time (like during a fundraising round).

2. Vague Milestones

“Vesting on launch” sounds simple until you realise “launch” can mean:

• a beta release to a limited group
• a public release
• a version with specific features
• a launch that generates revenue

Milestone-based vesting can work well, but only when milestones are drafted with clear definitions and objective evidence (for example, “$X in monthly recurring revenue for 3 consecutive months”).

3. No Clear Leaver Process

It’s not enough to say “unvested shares are forfeited.” You also need process mechanics, like:

• who decides whether someone is a good leaver or bad leaver
• what notices must be given
• how the transfer/buyback is completed
• what happens if the founder refuses to sign transfer documents

These details usually sit inside a Shareholders Agreement, alongside other exit provisions and dispute management steps.

4. Ignoring Confidentiality, IP, And Roles

Vesting is only one piece of protecting a growing business. You should also be clear on:

• who owns intellectual property created by founders;
• what happens if someone leaves and starts a competing business;
• what information must stay confidential.

Often this is handled in the founders documentation and supported by obligations in your broader contracts. For example, if founders are also working in the business in operational roles, you might also need properly drafted Employment Contract terms (or contractor arrangements) so expectations are aligned from both an equity and a work perspective.

5. Not Planning For Investors Or Employee Equity

If you plan to raise funds, investors commonly expect:

• founder vesting to exist (or be introduced at the time of investment)
• clean and consistent cap table records
• clear governance documents and approvals

Similarly, if you plan to introduce employee equity or incentives later, your founder vesting and shareholder documents should be written in a way that can scale.

Key Takeaways

• Founder vesting in New Zealand is usually implemented through contracts and company documents (rather than a single “vesting law”), so good drafting matters.
• Vesting helps protect your business from “dead equity” if a founder leaves early or stops contributing, which can otherwise block growth, fundraising, and exits.
• Common structures include time-based vesting (often with a cliff), milestone-based vesting, or a hybrid of both.
• A strong vesting structure usually needs clear leaver provisions (good leaver vs bad leaver), a defined process for transfers/buybacks, and thought given to acceleration on sale events.
• Vesting terms should be documented in the right legal documents, often including a Founder Agreement and a Shareholders Agreement, and aligned with your Company Constitution and share mechanics.
• To avoid disputes later, make sure milestones are objective, the vesting schedule is trackable, and the paperwork is consistent with how the company actually issues and holds shares.

If you’d like help setting up founder vesting or documenting it properly in a Founder Agreement or Shareholders Agreement, you can reach us at 0800 002 184 or team@sprintlaw.co.nz for a free, no-obligations chat.