The Two Stage Tax Structure
ESOPs in India are taxed at two separate points in their life, and confusing the two is the single most common mistake employees make. The first tax lands when you exercise your options and receive shares. The second lands when you later sell those shares. Understanding both, and the special deferral available to eligible startups, is essential for founders who want to communicate honestly with their teams.
Stage One: Perquisite Tax at Exercise
When you exercise vested options, the gain is treated as a perquisite under the head salary in Section 17(2) of the Income-tax Act. The taxable amount is the fair market value (FMV) of the shares on the exercise date minus the exercise price you paid, multiplied by the number of shares. This perquisite is added to your salary income and taxed at your applicable slab rate, and the employer deducts TDS on it under Section 192.
For an unlisted startup, the FMV cannot be a casual estimate. It must be determined by a merchant banker registered with SEBI as a Category I merchant banker, and the valuation should be dated within 180 days of the exercise date. Relying on a stale valuation creates a TDS default risk for the company.
Stage Two: Capital Gains at Sale
When you sell the shares, you pay capital gains tax on the difference between the sale price and the FMV that was already taxed as a perquisite at exercise. Because that FMV becomes your cost of acquisition, the value taxed once as salary is not taxed again as gains. The rate depends on how long you held the shares and whether they are listed:
- Unlisted shares, which is what most startup employees hold before a listing, are long term if held for more than 24 months, taxed at 12.5 percent without indexation. If held for 24 months or less, the gain is short term and taxed at your slab rate.
- Listed shares sold on a recognised exchange are long term if held for more than 12 months, taxed at 12.5 percent with an annual exemption of Rs 1.25 lakh on such gains. If held for 12 months or less, the short term gain is taxed at 20 percent. These rates apply to transfers on or after 23 July 2024.
The Startup Deferral: Section 192(1C)
The perquisite tax at exercise can be painful, because employees owe real tax on paper gains from shares they usually cannot yet sell. To ease this, the law lets eligible startups defer the perquisite tax. Under Section 192(1C) of the Income-tax Act, 1961, an eligible startup could defer deducting TDS on the ESOP perquisite until the earliest of three events: the expiry of 48 months from the end of the relevant assessment year, the date the employee sells the shares, or the date the employee ceases to be an employee.
India has replaced the 1961 Act with the Income-tax Act, 2025, effective 1 April 2026. Under the new Act the deferral window has been extended from 48 months to 60 months, measured from the end of the tax year of allotment, while keeping the same two other triggers of sale and cessation of employment. So for shares allotted from April 2026 onward, eligible startup employees can defer the perquisite tax for up to 60 months.
Who Actually Qualifies
This is where honesty matters. The deferral is not available to every company that calls itself a startup. It applies only to an eligible startup as defined for Section 80-IAC, which means the company must be recognised by the Department for Promotion of Industry and Internal Trade (DPIIT) and must additionally hold an Inter-Ministerial Board (IMB) certificate. Only a small fraction of DPIIT recognised startups hold that certificate, so most startup employees do not get the deferral and must pay the perquisite tax in the year of exercise. Founders should confirm their own status before telling employees the tax can be postponed.
Two practical takeaways. First, exercise timing matters, because it triggers a real tax bill even when no cash has changed hands. Second, whether your company is an IMB certified eligible startup changes the conversation entirely, so verify it rather than assume it.