Money, with the math shown.
Plain-English deep dives into the numbers behind loans, rates and transfers. Every figure in these guides is computed, not quoted: the same engines that power our calculators, turned into explanations.
The rate they quote isn't the rate you pay
A ₹10L loan at 10% with a 1% fee has a ~10.43% APR, not 10%. Why a flat fee against a shrinking balance bites harder than its sticker rate. Every figure solved by IRR.
Personal loan vs credit card vs gold loan
₹1L for a year costs ₹7,238 on a gold loan but ₹24,181 revolved on a card. All four routes on identical terms, with fees, GST and true APR computed.
The 10% raise that doubles your SIP
A flat ₹10k/mo SIP over 20 years at 12% builds ~₹1 Cr; stepping it up 10% a year builds ~₹1.99 Cr, nearly ₹99L more. Full table by step-up rate, every figure computed.
Why your first EMI is 79% interest
Inside the amortization curve: when you really own half your home, why refinancing late is pointless, and what one extra EMI a year saves (spoiler: years).
The invisible fee in every remittance
Bank wire vs exchange house vs digital across the Gulf's biggest corridors, and the AED 2,600/year that hides in the exchange rate, not the fee line.
Down payments around the world
0% in the Netherlands, 30% in Hong Kong: what ten markets' deposit rules reveal about who's afraid of a crash, with rate data across 186 countries.
How much rent is tax-free? (HRA)
HRA exemption is the least of three formulas. The "rent minus 10% of basic" catch trips everyone up. Worked table across rent levels, plus the old-regime-only rule.
The extra ₹50,000 deduction (NPS)
Section 80CCD(1B) stacks ₹50,000 on top of 80C, worth ₹15,600 at the 30% slab. Tax saved by slab, the net cost, and the 80CCD(2) employer route that survives the new regime.
How much gratuity will you get?
The 15/26 formula decoded: ₹50k basic + DA over 10 years pays ₹2.88L, tax-free up to ₹20L. Full table by tenure, plus the basic-only catch that shrinks your payout.
Home loan tax benefits
Sections 80C + 24(b) worth up to ₹1.05L/year, but only under the old regime. The by-slab table and why the new regime removes them entirely.
How big should your emergency fund be?
3 to 6 months of essential expenses, not salary. At ₹50k/month that is ₹1.5L to ₹3L. Full target table by expense level, plus the savings + liquid-fund split for access with a little yield.
Where to park your money
FD vs debt fund vs savings, compared post-tax for a 30% slab. Liquidity-first for emergencies, but never leave long-term money earning 3%.
Your credit score is a price tag
The same ₹50L loan costs lakhs more with a poor CIBIL score. Full rate-band table (8.35% at 800+ vs 11.25% below 650) and how to raise your score before applying.
Currency pegs explained
Why the dirham never moves against the dollar, and what that means for your remittance: when AED is locked to USD, watching USD→INR tells you your AED→INR.
The Rule of 72
Divide 72 by your return to find how fast money doubles: 8% → 9 years. The shortcut checked against the exact maths, plus using it on inflation and over a lifetime.
Rent vs buy a home
A year-by-year net-worth simulation of buying a ₹80L home vs renting and investing the difference: when the buyer overtakes, and why holding period decides everything.
Prepay your loan, or invest?
Prepaying an 8.5% loan is a guaranteed tax-free 8.5% return. A ₹5L prepayment saves lakhs, compared head-to-head against investing the same money at 6–12%.
How much home loan can you afford?
The 40% EMI rule, computed across income levels (a ₹1L salary funds a ₹40L+ loan), plus FOIR, tenure tricks, and why not to borrow the max.
Stamp duty, state by state
The upfront cost that isn't in your EMI: all 32 Indian states ranked, from 5% to 13%, with the women's rebate. The same flat can cost lakhs more by state.
The true cost of owning a car
A ₹12L car costs ~₹15.5L to own for 5 years, about ₹25/km. Depreciation, not fuel, is the hidden giant. Full five-line breakdown, every figure computed.
Flat vs reducing interest rates
A 10% flat rate is really ~17.3% reducing. The dealer trick explained with a full worked comparison, and the ×1.8 rule to convert in your head.