CalcMantra blog — India money notes
Interactive articles that sit next to our free EMI, SIP, and tax calculators. Assumed investment returns are never treated as guaranteed. For short Q&A with example tables, see popular finance questions; for formula explainers, see guides.
2026-09-17
Home Loan Prepayment vs Investment: Where Should You Put an Extra ₹1 Lakh?
Compare using extra rupees to prepay a home loan or to invest, with a live break-even return. Assumed investment returns are not guaranteed.
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2026-09-17
How Much SIP Do You Need for ₹1 Crore? ₹5K, ₹10K, ₹20K & ₹50K Examples
Required monthly SIP for a ₹1 crore goal, with live tables for ₹5,000–₹50,000, optional step-up, and inflation. Returns are assumed, not guaranteed.
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2026-09-17
How CalcMantra computes EMI (and what we leave out)
Reducing-balance math, why processing fees are excluded, and how the amortization preview is built in the browser.
2026-09-08
Tax Year 2026-27 slabs: what Budget 2026 did not change
New regime remains default. ₹4 lakh exemption, ₹12 lakh rebate window, and why you should still compare old regime if you claim HRA and 80C.