How to Set Up an Employee Share Option Scheme (ESOP) in Singapore Without a Law Firm (2026)

Why the tax treatment is the whole game

Options granted to employees are taxable as employment income under s.10(1)(b) of the Income Tax Act 1947 (Cap. 134). The question is when that tax falls due.

Under the default position, the employee is assessed at the point of exercise — the gain being the open-market value of the shares on exercise date minus the exercise price paid. That timing is usually tolerable for employees joining a pre-revenue startup: they exercise, they receive shares, and if the company hasn't yet traded on a public market, IRAS will accept a valuation that is effectively negligible.

The tax deferral available under the ESOP safe harbour operates differently. If your scheme meets IRAS's qualifying conditions — specifically that options must not be exercisable within one year of the date of grant, and the exercise price must be set at or above the market value of the underlying shares at grant date — employees can elect to defer assessment to the date of sale of the shares rather than the date of exercise. This is the s.10(1)(b) deferral that every Singapore tax practitioner references.

Qualifying conditions in plain terms:

• Vesting cliff of at least one year — no exercise permitted within twelve months of grant
• Exercise price equal to or greater than market value at grant — a below-market "discount option" disqualifies the plan from deferral
• Shares must be in the employing company or its holding company — options over third-party shares are not covered
• The employee must file an election — deferral is not automatic; the employee submits Form IR8A annotation and an election to defer

Miss any of these and the employee faces a tax bill at exercise, often when no cash has changed hands. That has killed more than a few early hires' enthusiasm.

The MAS exemption: why you don't need a prospectus

Offering shares or options to employees ordinarily triggers the requirement to lodge a prospectus under the Securities and Futures Act 2001 (Cap. 289A). That is a S$50,000+ exercise in any normal market.

The Monetary Authority of Singapore has provided an exemption that covers employee share and option schemes under the Securities and Futures Act 2001 — specifically section 273(1)(b) of the SFA and the subordinate regulations made under it — so that qualifying employee schemes are not required to lodge a prospectus. The exemption applies where:

1. The scheme is a bona fide scheme established primarily to allow employees to participate in the company's equity
2. The offer is made to persons who are employees, directors, or executive officers of the issuer or its related corporations
3. The number of shares offered or issued under the scheme remains within any pool limits set in the scheme rules (for SGX-listed issuers the exchange imposes a 15% cap; for unlisted private companies there is no prescribed statutory ceiling, and the pool size is a commercial decision documented in the scheme rules)

The exemption does not require MAS pre-approval or notification. You adopt it by structuring the scheme within its boundaries. Keep a record of the regulatory reliance in your scheme documentation — auditors and investors will ask for it.

Designing your vesting schedule

A standard four-year vesting schedule with a one-year cliff has become the de facto market expectation in Singapore's startup ecosystem, partly because it satisfies the IRAS one-year minimum and partly because it aligns with Series A investor expectations.

A typical structure looks like this:

• Month 1–12: no vesting (cliff period)
• Month 13: 25% of the total grant vests in a single tranche
• Months 14–48: the remaining 75% vests monthly in equal instalments (approximately 2.08% per month)

Acceleration provisions are common but need careful drafting. Single-trigger acceleration — where all unvested options vest automatically on a change of control — is increasingly resisted by acquirers who want management teams to stay put post-acquisition. Double-trigger acceleration, which requires both a change of control and the employee's subsequent involuntary termination, is the preferred structure for Series A and later rounds.

For early hires with significant grants, consider a longer post-termination exercise window. The standard 90 days is punishing for employees who leave before a liquidity event with no immediate path to cash.

Setting the exercise price

For unlisted companies, the exercise price is set by reference to the fair market value of the ordinary shares at grant date. IRAS accepts the board-determined valuation if it is documented and based on a recognised methodology — typically the last funding round price, a 409A-equivalent independent valuation, or a net asset value calculation for pre-revenue companies.

Two common mistakes:

Granting below the last round price. If your Series A priced ordinary shares at S$1.00 (as converted, after accounting for any preference share liquidation preference), setting an exercise price of S$0.10 for new hire options is not just aggressive — it disqualifies the deferral election and may trigger a deemed benefit assessment at grant. Use the ordinary share value, not the preference share price, but get that ordinary share value properly documented.

What goes in the scheme rules versus the grant letter

Think of the scheme rules as the constitution and the grant letter as the individual appointment. They serve distinct purposes and should never be conflated.

The scheme rules document (sometimes called the Plan Rules or Share Option Rules) is adopted by the board and typically ratified by shareholders at an EGM or by written resolution. It should cover:

• Eligibility criteria (who qualifies: full-time employees, directors, consultants?)
• Pool size (the total number of shares reserved — SGX-listed companies must stay within the 15% SGX cap; for unlisted private companies no statutory ceiling applies, but the pool size determines dilution and should be documented)
• Grant procedure (board approval process, timing restrictions around financial results)
• Vesting conditions and acceleration mechanics
• Exercise procedure, including the form of exercise notice and payment method
• Treatment of options on termination (resignation vs dismissal vs death vs disability)
• Adjustment provisions (anti-dilution, reorganisations)
• Plan administration (usually the board or a compensation committee)
• Amendment and termination of the plan

The individual grant letter is issued to each participant and records only the particulars specific to that award: number of options, exercise price, grant date, vesting commencement date, vesting schedule, and expiry date. The grant letter incorporates the scheme rules by reference rather than restating them.

Keep a register of all grants. IRAS expects Form IR8A filings for each option-holding employee, and the scheme administrator needs an accurate ledger covering grant dates, exercise prices, vesting schedules, exercises, and cancellations.

ACRA filing: what actually needs to be lodged

Adopting an ESOP does not itself require an ACRA filing. When options are exercised and new shares are issued, you must lodge a Return of Allotment through BizFile+ with ACRA within 14 days of allotment. The form requires the consideration paid, the class of shares issued, and the identities of the allottees. Constitutional amendments to increase authorised share capital — relevant for older constitutions pre-dating the 2015 Companies Act amendments — require a special resolution and a corresponding ACRA filing.

Building the documents yourself

The scheme rules and grant letter template are the two documents you actually need. Most Singapore startups are surprised to find that the substantive drafting is not the hard part — it is understanding the regulatory framework and making deliberate choices about the commercial terms.

A practical starting point is the ESOP Plan Startup template on forms-legal.com, which covers the core scheme rules and individual grant letter in a guided format. Tailor the vesting terms, pool size, and post-termination provisions to fit your specific situation.

One area where professional input remains genuinely useful is the ordinary share valuation at grant date for options issued after a priced funding round. A documented, defensible valuation protects both company and employee from an IRAS challenge — and a single conversation with an accountant who works with startups usually suffices.

Before you issue the first grant

Run through this checklist before the first option letter goes out:

• [ ] Board resolution adopting the scheme rules has been signed and dated
• [ ] Shareholder approval obtained (by written resolution or EGM) if required by constitution
• [ ] Option pool size documented in scheme rules (for SGX-listed companies the 15% SGX cap applies; for unlisted private companies, set the pool at a commercially appropriate level and document the basis)
• [ ] Exercise price at or above fair market value at grant date, with valuation memo on file
• [ ] Vesting schedule includes a cliff of at least 12 months (IRAS qualifying condition)
• [ ] Grant letters issued and countersigned by employees
• [ ] Option register created and updated
• [ ] Employees informed of the deferral election process and Form IR8A implications

Getting these eight items right before the first grant costs a few hours of careful reading. Getting them wrong costs a remediation exercise — and unhappy employees who discover mid-vesting that their tax position is not what they were told.