Built by investors who got tired of leaving money on the table
Every March, millions of Indian equity investors pay more capital gains tax than they legally have to. Not because they want to — because optimizing it requires hours of spreadsheet work or an expensive CA. We built TaxHarvestLab to fix that.
The problem with Indian capital gains tax
The Indian tax code gives every equity investor a ₹1.25 lakh annual LTCG exemption. But to actually use it, you need to know your exact LTCG position across hundreds of trades — calculated using FIFO, with different rates for long-term and short-term gains.
On top of that, you may be sitting on unrealised losses you could harvest — selling and rebuying positions to lock in losses that offset your gains. This is completely legal. It is just tedious.
Most investors either ignore it entirely (and overpay tax) or pay a CA ₹5,000–₹15,000 to do the math. We thought there had to be a better way.
What we replace
- ❌ Before3 hours in Excel calculating FIFO across 200 trades
- ❌ Before₹10,000 CA bill for a routine tax optimization
- ❌ BeforeMissing the March 31 deadline and overpaying tax
- ✅ AfterUpload report → get recommendations in 2 minutes, free
How TaxHarvestLab works
Four simple steps. No account needed for the core analysis. Your data never leaves your device.
Upload your P&L report
Download your Profit & Loss statement from Zerodha Console. Drag and drop it into TaxHarvestLab — takes 30 seconds.
We crunch the numbers
Our engine applies FIFO methodology to calculate your exact LTCG and STCG position, identifies unrealised losses you can harvest, and checks your ₹1.25 lakh exemption headroom.
Get actionable recommendations
See exactly which stocks to sell (and optionally rebuy) before March 31 to legally reduce your capital gains tax bill — with the rupee savings shown clearly.
Download your PDF report
Export a clean, structured report you can share with your CA or file yourself with confidence. Your data stays in your browser — we never store your portfolio.
What we stand for
These are not slogans. They are engineering decisions.
Privacy first
Your portfolio data is processed entirely in your browser. We never store, transmit, or sell your financial information.
Tax-law accurate
Every calculation follows FIFO methodology as mandated by Indian income tax rules, with correct LTCG (12.5%) and STCG (20%) rates for FY 2025-26.
No CA required
Democratizing access to tax optimization that was previously only available to investors who could afford a dedicated CA.
Always free for core features
The analysis, recommendations, and guidance will always be free. We believe every investor deserves to keep more of their returns.
Who built this?
TaxHarvestLab was built by a small team of Indian software engineers and investors who were personally frustrated by this problem. We are not a large fintech company. We are not VC-funded. We built this because we needed it ourselves — and figured a few million other Zerodha investors probably did too.
Questions or feedback? We would love to hear from you.
Ready to stop overpaying tax?
Upload your Zerodha P&L report and get your personalized LTCG & STCG optimization report in under 2 minutes. Free, no account needed.
No sign-up required · Your data never leaves your device · 100% free