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SmartTaxCalc
38 free Indian tax & finance calculators, CA-reviewed
Free Indian tax & finance calculators for FY 2026-27 (AY 2026-27). Old vs New Regime, HRA, Advance Tax, NPS, NRI residency (182/120-day), DTAA (US/UK/Canada), RSU vesting, FIRE, and 30+ more. • All tax formulas CA-reviewed • No signup, no login • Privacy-first — everything runs client-side in your browser • 100% free Built in Surat, India.
Hi Product Hunt 👋
I built SmartTaxCalc because Indian tax tools are either behind
signups, riddled with ads, or send your salary data to a server.
SmartTaxCalc is the opposite:
→ 38 calculators covering income tax, NRI/DTAA, capital gains,
RSUs, HRA, NPS, FIRE, and everyday finance (EMI, SIP, FD, PPF).
→ Every tax formula is reviewed by a practising Chartered Accountant.
→ No account, no login, no tracking of your numbers — all math
happens in your browser, nothing hits our servers.
→ Completely free.
Most useful for salaried folks comparing Old vs New Regime, and
NRIs figuring out residency, DTAA relief, and property TDS.
Would love your feedback — especially which calculator you'd want
next. Happy to answer any tax-tool questions here!
honestly the client-side privacy angle is genuinely nice, hate that most tax sites demand your PAN before showing a number. quick try of the old vs new regime calc matched what my CA gave me last quarter so that part feels legit.
honestly this looks really useful, especially since everything runs client side. one thing that would help a lot is adding a side by side comparison view for old vs new regime that shows the break even salary point, so you can instantly see at what income level switching regimes actually saves money.
Hey Product Hunt! 👋 Chetan here — maker of SmartTaxCalc.
Why this exists: India has ~50M salaried taxpayers + ~30M NRIs, and every free online calculator I found was either broken, US-focused, or asked for my email/mobile before showing a result. So I spent 6 months building the tool I wanted.
What's here (38 calculators, all CA-reviewed by Ankitkumar Italiya, ICAI 644575):
• Income tax: old vs new regime, HRA, CTC, salary comparison, Section 87A
• NRI-specific: 182-day residency, DTAA (US/UK/Canada), FBAR, Schedule FA, RSU vesting
• Investments: SIP, PPF, ELSS, NPS, FIRE, crypto tax
• Property: home loan tax benefit, gratuity, leave encashment
No signup. No email capture. Nothing stored server-side (all computation happens in your browser).
Direct links to a few crowd favorites:
→ 182-day NRI residency: https://smarttaxcalc.in/tools/nr...
→ Old vs new regime: https://smarttaxcalc.in/blog/old...
→ Home loan tax benefit: https://smarttaxcalc.in/tools/ho...
Happy to answer any questions — genuinely made this to be useful. 🙏
About SmartTaxCalc on Product Hunt
“38 free Indian tax & finance calculators, CA-reviewed”
SmartTaxCalc was submitted on Product Hunt and earned 5 upvotes and 6 comments, placing #157 on the daily leaderboard. Free Indian tax & finance calculators for FY 2026-27 (AY 2026-27). Old vs New Regime, HRA, Advance Tax, NPS, NRI residency (182/120-day), DTAA (US/UK/Canada), RSU vesting, FIRE, and 30+ more. • All tax formulas CA-reviewed • No signup, no login • Privacy-first — everything runs client-side in your browser • 100% free Built in Surat, India.
SmartTaxCalc was featured in Fintech (47.3k followers), SaaS (43.2k followers) and Finance (6.1k followers) on Product Hunt. Together, these topics include over 73.7k products, making this a competitive space to launch in.
Who hunted SmartTaxCalc?
SmartTaxCalc was hunted by chetan sanghani. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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chetan sanghani