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Finance, investment, and planning calculations — explained and demystified.
✦ AI-powered — understands natural language
Why Minimum Credit Card Payments Take 30 Years — DTI Ratio, the Debt Spiral Condition, and Scenario Analysis
Loan Types Explained: Secured vs Unsecured, Flat Rate Traps, and How to Compare Borrowing Costs
Personal loans, home loans, car finance, and payday loans all differ in structure — not just rate. Here's how secured vs unsecured affects rates, the flat-rate vs reducing-balance deception (flat 10% = effective 18% APR), and a loan comparison framework that goes beyond rate.
How Central Banks Target Inflation: The 2% Target, Interest Rate Transmission, and CPI vs RPI
Central banks target 2% inflation — not because it's optimal, but because zero is dangerous. Here's why the 2% target emerged from New Zealand in 1989, how raising interest rates reduces inflation (with an 18-month lag), why CPI and RPI give different numbers, and what actually causes hyperinflation.
Mortgages Explained: Amortisation, LTV, Fixed vs Variable Rates, and the Power of Overpayments
The EMI calculator gives a monthly payment — but total interest, LTV impact on rate, fixed vs tracker mortgages, and the overpayment calculation are what determine whether a mortgage is actually affordable over 25 years. Here's how mortgage amortisation works with real numbers.
Compound Interest Working Against You: Credit Card Debt, Minimum Payments, and the Real Cost of Borrowing
Compound interest works as powerfully against you in credit card debt as it works for you in savings. Here's how daily compounding works on credit cards, the mathematics of minimum payment traps, how mortgage interest front-loads early payments, and the dramatic savings from overpaying.
The Rule of 72: The Fastest Way to Estimate Compound Interest Without a Calculator
Divide 72 by the interest rate and you get the approximate years for money to double. At 8%, that's 9 years. At 6% inflation, your purchasing power halves in 12 years. The Rule of 72 is the fastest compound interest mental shortcut — here's how it works, why it's accurate, and how to extend it to tripling, quadrupling, and GDP growth.
SIP vs Lump Sum Investing: What the Evidence Shows and Why Staying Invested Beats Everything Else
Lump sum beats SIP 67% of the time theoretically — and SIPs almost always win in practice, because most people don't have a lump sum, and those who do often never invest it. Here's what the research shows, the cost of missing the market's best days, and what a 15-year SIP actually produces.
Recurring Deposits vs SIPs vs Savings Accounts: Risk, Returns, and Which Suits Your Goal
RDs guarantee returns; SIPs offer higher potential returns with market risk; regular savings accounts provide full liquidity. Here's a comparison of all three by risk, return, tax treatment, and suitable horizon — including why rupee cost averaging makes SIPs particularly effective in volatile markets.
Goal-Based Savings Planning: How to Set Realistic Targets for Emergency Funds, Deposits, and Education
Most savings goals fail because the monthly target was calculated wrong — no inflation adjustment, no allowance for rising house prices, wrong timeline. Here's goal-based financial planning in practice: emergency fund sizing, inflation-adjusted targets, house deposit calculation with rising prices, and education fund planning.
How Income Tax Brackets Actually Work: Progressive Tax, UK's Hidden 60% Band, and Effective vs Marginal Rates
Tax brackets don't apply to all your income — only to the income in that band. Here's exactly how progressive tax works with UK and US examples, the UK's hidden 60% tax band between £100k–£125k, why National Insurance is effectively a second income tax, and the difference between marginal and effective rates.
Fixed Deposits vs Government Bonds, Money Market Accounts, and Premium Bonds: Which Low-Risk Option is Right?
Fixed deposits compete with government bonds, money market accounts, and UK Premium Bonds for the same conservative savings money. Here's how each works, the inflation-adjusted real return calculation, when Premium Bonds beat FDs for higher-rate taxpayers, and how to choose based on liquidity needs.
Treasury Bills, Yield Curves, and Simple Interest: How Short-Term Government Debt is Priced
Treasury bills are priced using simple interest on a discount model — you pay less than face value and receive face value at maturity. Here's how T-bill discount rates work, the yield curve and what inversions signal, real vs nominal yields, and how simple interest appears in overdrafts and trade credit.
Retirement Calculator — Find Your Actual Corpus Target Before It's Too Late
Learn why most retirement estimates are too low, how inflation and longevity compound the planning challenge, the key variables that determine your target corpus, and how a free retirement calculator gives you a defensible number.
