Employee Share Schemes generate three distinct taxable events — grant, vesting, and exercise — and the income tax treatment depends on which scheme type applies and whether conditions for deferral have been met. Most startup ESOP structures in Australia are designed as deferred taxing point schemes under s.83A-B of ITAA 1997, which means the employee's assessable income arises at vesting, not at grant. The bookkeeper who is unaware of this distinction will either omit the income from payroll reporting entirely or report it at the wrong time.
Two Scheme Types: Upfront and Deferred
Subdivision 83A of ITAA 1997 divides ESS interests into two categories based on the taxing point. Under upfront schemes (s.83A-C), the discount on shares acquired is included in the employee's assessable income in the income year in which the interest is acquired. There is no further income tax event on vesting or exercise (though CGT will apply on disposal of the shares).
Under deferred taxing point schemes (s.83A-B), the assessment is deferred until the earliest of: the cessation of the real risk of forfeiture, the removal of restrictions on disposal, the 15-year anniversary of acquisition, or the point at which the employee ceases employment. Most Australian startup option plans operate as deferred schemes because the options vest over a three or four year cliff-or-graded schedule, and the employee would have no liquidity to meet an upfront tax liability before exercise.
The tax deferral is not automatic. The scheme must satisfy the conditions in s.83A-B: the employee must be at real risk of forfeiture (i.e., unvested options that lapse on termination satisfy this), the scheme must be an employee share scheme (not remuneration structured as options for other purposes), and the employer must lodge an ESS Annual Report.
Employer Annual Reporting Obligations
Under s.392-15 of ITAA 1997, employers who operate an ESS must lodge an annual ESS statement with the ATO by 14 August each year. The statement covers all employees who received, exercised, or had a taxing point trigger in the preceding income year (ended 30 June).
The statement must identify: each employee, their TFN (if provided), the type of ESS interest (share, option, or right), the number of interests, the discount amount (for upfront schemes) or the deferred taxing point value (for deferred schemes), and the date of the taxing event. For unlisted companies, this requires a contemporaneous valuation — the ATO does not accept a retroactive valuation prepared after the fact.
Failure to lodge the ESS Annual Report is a strict liability offence under s.286-75 of Schedule 1 to the TAA 1953. The employer is also required to provide each affected employee with an ESS statement by the same date. Where the employer fails to provide the employee's statement, the employee has no basis for their own tax return disclosure and may under-report income — which is the employer's responsibility to prevent under the reporting obligations.
Tracking Grant, Vesting, and Exercise Events
Bookkeepers managing an ESOP should maintain a separate ESOP register distinct from the payroll system and the general ledger. The register should record: the grant date, the number of options granted, the exercise price, the vesting schedule, the expiry date, and for each subsequent event, the date and quantity vested, exercised, or forfeited.
At grant date under a deferred scheme, no income tax event occurs. The company makes a share-based payment expense journal under AASB 2: debit Share-Based Payment Expense, credit Share-Based Payment Reserve. This expense is spread over the vesting period at fair value on grant date. Importantly, this accounting expense is non-deductible for income tax purposes — the employer's tax deduction does not arise until the actual deferred taxing point.
At the vesting date (cessation of real risk of forfeiture), the employee has assessable income equal to the market value of the options at that date less the exercise price. If options vest in a quarterly payroll cycle, they must be reported via STP for that pay period. The market value for unlisted companies must be determined by a consistent methodology — Black-Scholes is common for options; for rights over shares, the share price at vesting date (applying a discount for illiquidity if appropriate) is used.
Exercise and Share Issuance
When a vested option is exercised, the employee pays the exercise price to the company and receives newly issued shares. The journal is: debit Cash (exercise price), debit Share-Based Payment Reserve (accumulated fair value for those options), credit Ordinary Share Capital. The share capital entry is the total of the exercise price and the reserve transfer.
No further income tax event arises at exercise for options that were assessed at the vesting deferred taxing point. The employee's cost base for CGT purposes is the market value that was included in their assessable income at vesting plus any exercise price paid. A bookkeeper who incorrectly reports the exercise price as income on the employee's payment summary at exercise will produce double-counting if the vesting event was already reported.
Following exercise, the company secretary must update ASIC's register of members. The bookkeeper should obtain confirmation of the new share issuance (minutes of the board resolution approving the exercise and the ASIC Form 484 change of member details) before posting the journal. The ESOP register should be updated to mark the options as exercised, cross-referenced to the relevant share certificate number.
Forfeiture of Unvested Options
Where an employee leaves employment before options vest and the options lapse, the forfeiture has no income tax consequence — the options were at real risk of forfeiture throughout, and that risk eventuated. No reversal of a previously reported income amount is required.
The accounting treatment under AASB 2 requires the reversal of the portion of share-based payment expense accrued for unvested options that lapse on forfeiture. The journal is: debit Share-Based Payment Reserve, credit Share-Based Payment Expense. The net effect is to reduce the total expense recognised over the vesting period to the amount relating to options that vested.
For upfront-taxed schemes (s.83A-C), the position is different. If an employee paid upfront tax on shares and those shares are subsequently forfeited without compensation, an amendment to the prior year assessment may be available under s.83A-55 to reverse the income inclusion. This requires a written application to the ATO and supporting evidence that the forfeiture occurred and was not associated with any compensating arrangement. Bookkeepers should flag this opportunity to affected employees and their tax agents.