The Gurgaon product designer and the ESOP perquisite tax the startup didn't deduct

He had signed the offer letter in August 2021, accepted 8,000 ESOP shares granted at par value ₹0, with a four-year cliff and monthly vesting thereafter. By March 2026, 2,400 shares had vested—the quarterly refresh. The company's share price, calculated by the board at fair-market-value in January, was ₹1,200 per share. The gap: ₹2.8 lakh. On a designer's salary of ₹16 lakh annually, that gap looked enormous. But the company's payroll software flagged it as "optional" in the exercise menu. Aman exercised the shares on 12 March, paid the par value, and watched the spreadsheet auto-calculate the per-share gain. He thought the company would handle the tax. They didn't.

His Form 16 for FY 2025–26 arrived in May, mailed to his registered address in Sector-35 Gurgaon. The salary section showed ₹12,87,000 (nine months at ₹16 lakh annualized, plus a March bonus). The TDS deducted section showed ₹2,10,000—routine. His Annual Information Statement (AIS), generated from the Income Tax Department's portal, showed a second income line: Perquisite value: ₹2,80,000. No TDS against it. The two documents, side by side, did not match. The discrepancy had already been caught by the Tax Department's automated e-Verification system. On 4 May, an automated notice landed in his PAN-linked email: "Mismatch detected between Form 16 and AIS for FY 2025–26. Please file a response within 7 days."

He opened his laptop, sat in the Cyber Hub office at 10 p.m. on a Friday, and stared at the text. He had no response to file. He had not deducted the tax. The startup had not deducted the tax. And the notice was dated 14 days ago.

1. 🤝

   August 2021 — ESOP offer & grant

   Aman receives 8,000 ESOP shares at par value ₹0. Vesting schedule: 4-year cliff + monthly vesting. No tax event yet; not exercised.

2. 📅

   March 2026 — Vesting & exercise

   2,400 shares vest (quarterly refresh). Aman exercises them on 12 March. Fair-market-value per share: ₹1,200. FMV gap: ₹2,80,000. Taxable as perquisite under Section 17(2).

3. 📨

   May 2026 — Form 16 mismatch

   Aman receives Form 16 (salary only, ₹12,87,000). AIS shows perquisite: ₹2,80,000. No TDS on perquisite. e-Verification system flags gap.

4. ⚠️

   May 2026 — Automated mismatch notice

   Email notice from IT Department: 'Mismatch detected between Form 16 and AIS. File response within 7 days.' 14 days already elapsed. Clock ticking.

🗓️ The annual ESOP tax rhythm

For salaried employees, the ESOP exercise is a silent tax event. The Income Tax Act, 1961, Section 17(2) and Section 2(42) define employee stock options as a perquisite—a benefit in cash or kind granted in respect of employment. The moment an employee exercises an option at a price below the fair-market-value (FMV) at exercise, the difference is taxable income in the year of exercise. The employer is responsible for deducting TDS (Tax Deducted at Source) on that perquisite, just as they do on salary.

But startups in India—especially early-stage and Series-A-to-C stages—often do not have ESOP tax infrastructure. Payroll software like Guidepoint or ADP handles salary, bonus, and routine deductions, but ESOP exercise is treated as a manual event. The startup's finance team might know about Section 17(2), or they might not. The HR team might flag it as a benefit, or they might assume the employee will handle it. The result is that thousands of employees in India's tech and fintech corridors—Bangalore, Gurgaon, Pune—exercise ESOPs every quarter, post the gains into their personal securities accounts, and never receive a corrective salary slip or TDS certificate.

The Income Tax Department's approach has shifted in recent years. The AIS (Annual Information Statement), introduced in wider circulation by 2023, pulls data directly from TDS filings, dividend statements, and MF redemptions. When a company does not report ESOP perquisite TDS to the Tax Department, the AIS still shows the ESOP grant via the ESOPly platform or the RTA (Registrar and Transfer Agent) filing. The Form 16 issued by the employer shows only what the payroll system captured. The mismatch is immediate—and the e-Verification system catches it automatically.

Aman had not worried about this rhythm because he assumed his startup's HR and finance teams were competent. They were startup-competent: shipping fast, working across time zones, managing Series-B fundraising. Tax administration was not on their roadmap.

⚠️ The Form 16–AIS mismatch and the deadline closing in

A mismatch between Form 16 and AIS triggers an automated response from the Tax Department. The e-Verification system sends an email to the PAN-holder's registered email address. The notice is brief and standardized: "Mismatch detected between Form 16 and AIS for FY [year]. Form 16 shows [amount]; AIS shows [amount]. Please file a response within 7 days." The email links to the Income Tax portal and provides a reference number.

The mismatch notice is not an assessment or a demand. It is a courtesy flag—a chance for the taxpayer to resolve the discrepancy before it becomes an audit notice or a formal demand under Section 142. Ignoring it, however, is unwise. If 7 days pass and no response is filed, the Department's system escalates the case. By day 14 (when Aman realized the notice), the case had likely already been flagged for manual review by an assessing officer.

The response options are limited:

1. File ITR-1 or ITR-2 to declare the perquisite income. This corrects the record, declares the tax liability, and pre-empts further action.
2. File a letter of explanation. Rare and risky; it admits the gap but does not resolve it.
3. Do nothing. The Department will then issue a formal notice under Section 142(1), demanding details, followed by a proposed assessment.

Aman's liability was straightforward: The ESOP perquisite of ₹2,80,000 should have been added to his taxable income for FY 2025–26. His total income would be ₹12,87,000 (salary) + ₹2,80,000 (perquisite) = ₹15,67,000. Assuming he was in the 20% tax slab (applicable above ₹5 lakh), the additional tax on ₹2,80,000 was approximately ₹56,000. He had paid nothing.

But the clock was critical. The 7-day window had closed. The notice was dated 4 May; Aman realized it on 18 May—14 days later. He had no time to meet the original deadline. The question now was whether the Department would accept a late response, or whether they would move to a formal demand.

🌗 The agent surfaces the tax gap and the filing window

Aman posted in a private Slack group for IIT Delhi alumni working in tech. The group had 3,000 members across startups, and the #tax-compliance channel had threads on ESOP, GST, and compliance. He typed: "ESOP exercise tax question—my startup didn't deduct TDS on the perquisite, and now the Tax Department is flagging a mismatch between my Form 16 and AIS. I have 7 days from the notice (mismatch notice dated 4 May). What do I do?"

A response came within two hours, from a startup CFO in Bangalore: "File an amended ITR immediately. The e-Verification mismatch notice is not optional. The Department will issue a formal notice under Section 142 if you don't respond in time."

But Aman realized the amended ITR window was also closing. If the original ITR-2 had been filed in April (before 31 May deadline), filing an amended ITR now would also incur a late-filing penalty. A colleague in his product design channel (from a FinTech startup in Mumbai) mentioned using an agent to cross-check the calculations and file the amended return.

Aman opened the agent on his tablet at 11 p.m. He typed: "My ESOP exercise created a perquisite income of ₹2,80,000 in FY 2025–26. My Form 16 shows ₹12,87,000 salary; AIS shows ₹2,80,000 perquisite. No TDS deducted. Tax Department sent mismatch notice on 4 May (14 days ago). What is the correct filing now?"

The agent surfaced three things:

1. The Form 16–AIS mismatch is triggered by Section 17(2) ESOP perquisite income not being reported to the Tax Department. The perquisite is real and taxable. The startup should have issued a corrective salary slip (Section 192 TDS) at the time of exercise.

2. Filing an amended ITR-2 for FY 2025–26 is the correct response. The amended ITR should declare the ₹2,80,000 perquisite as additional income. Aman should carry forward the total income (₹15,67,000) and recalculate tax liability. The amended return can be filed up to one year after the original ITR due date (31 May 2027), though filing late (after 31 May 2026) incurs late-filing penalties and interest.

3. The mismatch notice response window is not hard. The e-Verification system accepts late responses if filed before a formal Section 142 notice is issued. Filing the amended ITR acts as a response to the mismatch notice.

The agent then walked Aman through the specific steps: Download ITR-2 from the Income Tax portal, declare the ₹2,80,000 in Schedule-P (Income from other sources), reconcile TDS credit (which would be zero), and e-file via the portal. The agent did not file the return; it verified the calculation, surfaced the deadline risk, and told Aman what to do next.

"आपके फॉर्म 16 और AIS में अंतर इसलिए है कि ESOP का perquisite tax-deductible नहीं किया गया। आप Section 17(2) के तहत ₹2,80,000 को अपनी income में जोड़ें और amended ITR-2 file करें। 31 मई 2026 के बाद late filing fee लगेगा, लेकिन formal notice से बेहतर है।"

(The mismatch between your Form 16 and AIS exists because your ESOP perquisite was not reported to the Tax Department. You must add the ₹2,80,000 as additional income under Section 17(2) and file an amended ITR-2. After 31 May 2026, a late-filing fee will apply, but filing now is better than receiving a formal notice.)

🧭 Why startups fail ESOP tax reporting—and why ordinary payroll software doesn't catch it

The ESOP perquisite tax is a design flaw in how Indian startups and their payroll systems interact with the Income Tax Act. Three things conspire:

First: ESOP exercise is not a salary event. It is an investment by the employee. The startup's payroll system (Guidepoint, ADP, Deel) is designed to handle salary, bonus, and routine deductions. An ESOP exercise lands in the cap table or the ESOPly platform, not in the payroll ledger. There is no single "ESOP perquisite" field in standard payroll software. HR and Finance must manually flag it and request a corrective salary slip or TDS entry—and many do not.

Second: Small to mid-stage startups (Series-A to Series-C) often lack a dedicated tax or compliance function. The CFO might be the same person managing fundraising and cash flow forecasting. The Finance Manager might be 24 years old, two years into their first job, and unfamiliar with Section 17(2) ESOP rules. When the issue surfaces, it is too late to correct. By the time Form 16 is issued (by 31 May), ESOP exercises from March have already happened—and the corrective salary slip has not.

Third: The Income Tax Act's e-Verification system has finally caught up to reality. For years, ESOP perquisite mismatches went undetected because the AIS was not widely used by individual taxpayers. But since 2023, the AIS has become the baseline for tax compliance. The moment a company reports ESOP grants to the RTA or ESOPly (which feeds the AIS), and the payroll system does not report corresponding TDS, the mismatch is automatic.

For designers and other salaried employees like Aman, this means the responsibility has quietly shifted. It is no longer enough to trust the startup. The employee must now verify that the perquisite income is included in Form 16—or be ready to amend. This is unfair, because the startup has the information and the legal obligation. But fairness is not how tax compliance works in India.

An agent—a tool that surfaces tax discrepancies by cross-referencing forms and schedules—helps by making the mismatch visible early. Instead of waiting for the Department to flag it, Aman could have run a check in May 2026 when his Form 16 arrived: "Did my startup report ESOP perquisite to the Tax Department?" The agent would have checked the AIS, checked the Form 16, and flagged the gap immediately. Aman would have had the full filing window to correct it.

📋

What Should Have Happened

Zero gap

On 12 March 2026, when Aman exercised 2,400 shares, the startup's HR/Finance should have flagged the ₹2,80,000 perquisite. Finance should have calculated TDS (approx. ₹56,000 at 20%) and deducted it from Aman's April or May salary. A corrective salary slip should have been issued. Form 16 should have shown salary + perquisite, with corresponding TDS.

⚠️

What Actually Happened

₹2,80,000 gap

ESOP exercise was recorded in the cap table and ESOPly, not in payroll. No corrective salary slip issued. Form 16 issued in May showed only salary (₹12,87,000), no perquisite. AIS generated separately showed the perquisite. Form 16 and AIS mismatched. e-Verification notice sent to Aman automatically.

"पहली बार मुझे लगा कि मेरी startup में कितना chaos है—और यह मेरी ही जिम्मेदारी है कि मैं check करूँ।"

— For the first time, it hit me how chaotic my startup's tax administration really is—and how much of it has become my responsibility to verify.

🌱 The quiet arithmetic of startup equity

Aman filed the amended ITR-2 three days later. The calculation was simple: ₹15,67,000 total income. He owed approximately ₹56,000 in additional tax on the perquisite portion. He had paid nothing; so the tax bill would be ₹56,000 plus interest (at approximately 6% per annum for the period from April 2026 to the date of payment) and a late-filing penalty. On a senior designer's salary in Gurgaon, ₹56,000 was not catastrophic—perhaps one month's take-home. But it was the principle. He had exercised the shares to reward his bet on the company's growth. Instead, the exercise had revealed that his startup, despite paying him competitively and promising equity, had not accounted for the tax administration of that equity.

He did not blame the VP of People or the CFO. He blamed the architecture: an ESOP system designed in 2015 (when Guidepoint was the standard and few startups thought about AIS mismatches) colliding with a tax system that had finally, in 2023–26, automated mismatch detection. The collision was predictable. But it took an automated notice to make it visible.

The agent, over the following week, walked Aman through the amended return filing, the e-Verification portal response, and the likely timeline for IT Department follow-up. He would likely receive a follow-up notice in 6–8 weeks if the amended ITR was not processed automatically. But filing now—albeit late—would prevent the Department from issuing a formal notice under Section 142(1), which would have triggered a full assessment and the risk of penalties.

The perquisite tax is a reminder that equity in an early-stage startup is not just about upside. It is about tax administration, about deadlines, about the hidden cost of growth. For Aman, the 2,400 shares he exercised were still an asset. The company was valued at ₹360 crore by Series-B, and the share price could move. But the perquisite tax was a liability that came with the equity—a liability that should have been managed by the startup but instead landed on Aman's calendar as a deadline.

He printed the amended ITR-2, placed it next to his Form 16 and the mismatch notice, and thought about what he would tell the next junior designer who received an ESOP grant. Not "congratulations," he decided. But "ask the startup how they handle TDS on perquisites." The rest—the equity upside, the long-term wealth creation, the bet on the company—could wait.