The Tax Harvesting Calculator is a free online tool that helps you estimate the tax you can save by harvesting gains up to the LTCG exemption. Instead of working through the maths by hand, you enter a few details and get an instant, accurate result — making it easy for investors and traders in India to plan with confidence. Whether you are a first-time investor or an experienced one, the Tax Harvesting Calculator removes the guesswork and lets you make numbers-backed decisions in seconds. This page explains what the calculator does, the formula behind it, how to use it, a worked example and the key things to keep in mind, so you can make the most of every calculation.
What is tax-loss and gain harvesting?
Tax harvesting is the practice of booking long-term equity gains each year up to the annual exemption limit (and re-buying), so that gains are realised tax-free rather than accumulating into a large taxable amount later. Loss harvesting similarly books losses to offset gains. Understanding this is the first step to using the Tax Harvesting Calculator effectively, because the quality of your result depends on the assumptions you feed in. Used every year, harvesting can save a meaningful amount of LTCG tax over an investing lifetime. Once you are clear on the concept, the calculator simply does the arithmetic for you — quickly, consistently and without errors.
How does the Tax Harvesting Calculator work?
The calculator applies a standard, well-established formula so the result is consistent and reliable. In simple terms, it works out the tax saved by realising gains up to the exemption instead of paying LTCG on the full amount later. The core formula is:
by realising gains within the exemption each year, that portion escapes the LTCG rate you would otherwise pay. The tool does this instantly and re-calculates the moment you change any input, so you can test different scenarios in seconds — something that would take much longer, and be far more error-prone, on paper or in a spreadsheet.
Why use the Tax Harvesting Calculator online?
Doing this calculation manually means juggling powers, percentages and long formulas where a single slip changes the answer. The Tax Harvesting Calculator handles all of that for you and lets you compare multiple scenarios side by side, so you can see exactly how a change in one number affects the outcome. It is the fastest way to turn a rough idea about tax-loss and gain harvesting into a concrete, reliable figure you can plan around — on any device, at any time, for free.
How to use the Tax Harvesting Calculator
- Enter your unrealised long-term gain (₹).
- The tool applies the annual exemption.
- See the estimated tax saved by harvesting.
- Read the result instantly — adjust any value to compare different scenarios side by side.
Tax Harvesting Calculator: example calculation
By booking a long-term gain up to the annual exemption each year and re-buying, an investor avoids LTCG on that slice — repeated annually, the savings compound over time. You can reproduce this in the calculator above and then tweak the numbers to match your own situation — that is exactly what makes an online calculator so useful for planning.
Benefits of using the Tax Harvesting Calculator
- Quantify the benefit of harvesting
- Use your annual exemption fully
- Plan year-end portfolio actions
- It is completely free, works on mobile and desktop, and needs no sign-up.
- It removes manual errors and saves the time of doing repeated calculations by hand.
Because you can see the outcome change in real time, the Tax Harvesting Calculator is as much a learning tool as a planning one: it builds an intuitive feel for how each variable — amount, rate, tenure or price — affects the final number.
Things to keep in mind
Mind exit loads, brokerage and the wash-sale spirit of re-buying, and confirm the current exemption and rate. Harvesting is a planning tactic, not a way to time the market. Remember that any calculator is only as good as its inputs and the assumptions built into it. Markets, interest rates, charges and tax rules change over time, so treat the output as a well-informed estimate rather than a guarantee. For decisions involving significant money or tax, confirm the current rules and consider speaking to a qualified financial adviser.
Disclaimer: The Tax Harvesting Calculator is provided for information and educational purposes only and does not constitute investment, tax or financial advice.