Meaning
Fiscal obligation arises when a service provider gains legal ownership of shares or options that were previously subject to a risk of forfeiture. Tax authorities typically view the value of the vested equity as ordinary income at the moment the restrictions lift. The amount taxed is the difference between the fair market value on the vesting date and the price paid for the shares.
Timing Mechanism
Recognition of the income occurs periodically as each tranche of the grant becomes unconditional. An equity vesting tax can create a noticeable cash flow problem if the shares are not yet liquid. Some jurisdictions allow for elections to pay the tax early based on the value at the time of the initial grant.
This election must be filed within a strict number of days from the grant date.
Withholding Requirement
Employers are usually responsible for collecting and remitting the tax due on behalf of the employee. To cover the equity vesting tax, the company might sell a portion of the vested shares or deduct the amount from the salary of the worker. Failure to withhold can lead to penalties for the corporate entity.
Valuation Basis
Determining the fair market value of private company stock requires a formal appraisal. The equity vesting tax calculation relies on these valuations to ensure that the reported income is accurate.