Personal Finance 101
Saving & Investing Basics
💼 What is Personal Finance?
Personal Finance is the management of your own money — from earning, saving, spending, investing, to retirement planning. It is the most important foundation because before you can invest, you must have money to invest — and that money comes from good personal finance habits.
📋 Budgeting
A budget is a plan for where your paycheck goes. The most popular rule is 50/30/20:
- 50% — Needs: rent, food, transport, utilities
- 30% — Wants: travel, dining out, shopping, hobbies
- 20% — Savings & Investing: emergency fund, RMF/SSF funds, stocks
If essential expenses exceed 50% (e.g. high rent), adjust — cut Wants first, not Savings.
🚨 Emergency Fund
An emergency fund is savings set aside for unexpected events — job loss, illness, car repairs, or other crises — without having to sell investments or borrow.
- Minimum: 3× monthly expenses (for singles with stable jobs)
- Recommended: 6× (for families or variable income)
- Special cases: 12× (for freelancers, business owners)
Keep it in an account separate from daily spending — e.g. a special savings account or high-yield account — so you won't spend it by accident.
💳 Debt Payoff
There are two types of debt — good debt (low interest, builds assets, e.g. a mortgage) and bad debt (high interest, e.g. credit cards, personal loans). The golden rule: pay off high-interest debt before investing.
Two popular strategies:
- Snowball: pay off the smallest debt first — quick wins, builds momentum
- Avalanche: pay off the highest-interest debt first — saves the most money, best for disciplined people
💰 Savings Rate
Savings Rate = (Amount saved ÷ After-tax income) × 100. Good benchmarks:
- 20% — the minimum recommended
- 30-50% — accelerating wealth-building
- 50%+ — on the path to FIRE (Financial Independence, Retire Early)
Pro tip: Pay Yourself First — transfer savings the moment your paycheck arrives, not "what's left over".
📊 Net Worth
Net Worth = Assets − Liabilities. It's the single number that tells your true financial position. Calculate every 6 months:
- Assets: cash, savings, stocks, funds, real estate (if sellable)
- Liabilities: credit card debt, car loans, mortgage, other debts
Goal: net worth grows every year, even if income doesn't.
🎯 Priority Order Before Investing
Follow this order — don't skip steps:
- Pay off high-interest debt (credit cards, personal loans) — interest is usually 16-28%/year, higher than most investment returns
- Build a minimum 3-month emergency fund
- Buy health insurance (if you don't have it) — medical bills can destroy finances
- Start investing — DCA into mutual funds (see Fund knowledge)
- Build emergency fund to 6 months
- Diversify — stocks, gold, real estate (via REITs)
