If you work in tech in India, you've probably encountered all three of these acronyms. Maybe from different jobs, maybe at the same company. They get used interchangeably in casual conversation, which creates a genuine problem: they're not the same thing, they don't work the same way, and they definitely don't get taxed the same way.
Getting them confused can lead to real errors — in your ITR, in your financial planning, in your negotiation when evaluating a new offer.
Here's what each one actually is.
Rsu — Restricted Stock Units
An RSU is a promise to give you actual shares of the company at a future date, for free, if you meet certain conditions (usually staying employed for a vesting period).
You don't pay anything for the shares. You don't exercise anything. On the vest date, the shares are delivered to your account automatically.
The tax event happens at vest: the full Fair Market Value of the shares on that date is added to your salary as a perquisite and taxed at your income slab rate.
RSUs are the dominant form of equity compensation at large US-listed tech companies — Google, Amazon, Microsoft, Meta, Qualcomm, Salesforce.
Esop — Employee Stock Option Plan
An ESOP is an option — the right to purchase shares at a fixed, pre-agreed price called the exercise price or strike price. You're not automatically given shares. You're given the option to buy them at that price, which you can choose to exercise (or not) within a defined window.
The value of an ESOP comes from the spread: if the company's market price is ₹600 and your strike price is ₹100, you can buy shares for ₹100 and immediately own something worth ₹600. That ₹500 difference is your gain.
ESOPs are common at Indian startups and pre-IPO companies.
The first tax event happens at exercise, not at grant: the difference between the exercise price and the FMV at exercise is taxed as a perquisite. If you never exercise, there's no tax.
This is the meaningful difference from RSUs. With RSUs, you have no choice — the tax happens at vest, whether you want it or not. With ESOPs, you have some flexibility in timing when you trigger the tax.
One specific benefit worth knowing: for ESOPs issued by eligible DPIIT-recognized startups, the perquisite tax at exercise is deferred — you don't have to pay it immediately. The tax becomes due at the earliest of: five years from allotment, the date you sell the shares, or the date you leave the company. This is a significant cash flow benefit that RSUs don't have.
Espp — Employee Stock Purchase Plan
An ESPP lets you buy your company's stock at a discount, typically 10–15% below market price, using money deducted from your salary over a "purchase period" (usually six months).
At the end of the period, the deducted salary is used to buy shares at the discounted price. You get an instant built-in gain equal to the discount.
ESPPs are offered as a supplement alongside RSUs at some companies — Microsoft and Google both offer ESPPs alongside their RSU programs.
The tax on ESPP works like this: the discount itself (the percentage below market price) is treated as a perquisite and taxed at vest. Any further gain above the purchase price when you eventually sell is capital gains.
Most financial advisors treat ESPPs as near-free money: participate to the maximum allowed, sell immediately after purchase to realise the discount, and reinvest elsewhere.
📊 TABLE: "RSU vs ESOP vs ESPP — Side by Side" [Insert here: Full comparison table] Feature | RSU | ESOP | ESPP What you receive | Shares, automatically, at vest | Right to buy shares at a fixed price | Right to buy shares at a discount Your cost | Zero | Strike price (fixed at grant) | Discounted purchase price (10–15% below market) Risk if stock falls | Lower — shares still have value as long as price > 0 | Higher — option may be worthless if price falls below strike | Lower — you bought below market First tax event | Vest date: full FMV taxed as salary | Exercise date: (FMV − strike) taxed as salary | Purchase date: discount amount taxed as salary Capital gains cost basis | FMV on vest date | FMV on exercise date | Purchase price Typical user | Large US-listed tech companies | Indian startups, pre-IPO companies | Same companies that offer RSUs, as a supplement LTCG threshold (foreign) | 24 months from vest | 24 months from exercise | 24 months from purchase
The Thing That Matters Most for Indian Employees
For ESOPs, you have timing flexibility. You can decide when to exercise, which lets you manage when the first tax event hits. For RSUs, there is no such flexibility. The tax arrives automatically on vest day.
This means RSU tax planning happens before the vest (deciding how much to set aside, whether to adjust advance tax payments) and after the vest (lot selection, LTCG timing, diversification). With ESOPs, there's an additional decision at exercise.
If you've moved from a startup with ESOPs to a US tech company with RSUs — or vice versa — this is the most important operational difference to internalise.
IF YOU HAVE BOTH RSUs AND AN ESPP
Participate in the ESPP. The discount is effectively guaranteed money, assuming you sell promptly after purchase. Treat the ESPP separately from your RSUs — the ESPP proceeds are short-term liquidity, RSUs are your longer-term equity exposure.
Don't hold your ESPP shares for LTCG timing unless you have a very strong view on the stock. The point of ESPP is the discount, not the upside.
How Rovia Can Help
If you're switching between companies and trying to compare equity packages, or if you have a combination of instruments from different employers, Rovia can help you understand what you actually have — the value, the tax implications, and how to manage each one.
Understanding the difference between these instruments is step one. Building a unified plan across all of them is where it gets more interesting.
Source: DPIIT ESOP deferred tax benefit — Income Tax Act, Section 80-IAC and DPIIT notification: https://dpiit.gov.in Source: ESPP tax treatment — ClearTax guide: https://cleartax.in/s/taxation-on-esop-rsu-stock-options
