Cluster
Personal finance basics
Money mechanics, savings frameworks, financial literacy — data-display only, no investment advice.
Cornerstone questions
The anchoring questions that define this cluster's scope.
- what ratio of income to save
- how long does emergency fund take
- what is compound interest
- how to convert pre tax to post tax income
Sub-topics
All answers in this cluster
what ratio of…(1 answers)
- What ratio of income should you save?
The widely-cited savings benchmark is 20% of gross income (Elizabeth Warren's 50/30/20 rule). Conservative target: 15-25%. Aggressive (FIRE…
how long does…(1 answers)
- How long does it take to build an emergency fund?
Building a 3-6 month emergency fund typically takes 12-24 months at average savings rates. Starter $1,000 emergency fund: 1-3 months for med…
what is…(13 answers)
- What is amortization?
Amortization is paying off a loan through fixed regular payments split between interest and principal. Early payments are mostly interest; l…
- What are mortgage points?
Mortgage (discount) points are an upfront fee you pay the lender to lower your loan's interest rate. One point costs 1% of the loan amount a…
- What is a mortgage escrow account?
A mortgage escrow account is where your lender's servicer holds money for property taxes and homeowners insurance. You pay about one-twelfth…
- What is a zero-based budget?
A zero-based budget gives every dollar of take-home income a specific job — spending, saving, or debt — until income minus all assignments e…
- What is a sinking fund?
A sinking fund is money set aside a little at a time toward a specific, known, future expense — so the cost is pre-funded instead of arrivin…
- What is a savings rate?
Your savings rate is the share of take-home income you save: savings divided by take-home pay. It is the single biggest lever on how fast ne…
- What is APR?
APR (Annual Percentage Rate) is the yearly cost of borrowing as a percentage — it bundles the interest rate PLUS required fees, but does NOT…
- What is APY?
APY (Annual Percentage Yield) is the yearly return on savings INCLUDING the effect of compounding — the true rate you actually earn. Formula…
- What is an ETF (exchange-traded fund)?
An ETF (Exchange-Traded Fund) is a basket of securities — stocks, bonds, commodities, or a mix — that trades on a stock exchange like a sing…
- What is an index fund?
An index fund is a mutual fund or ETF that passively tracks a market index (S&P 500, total stock market, etc.) instead of trying to beat it.…
- What is dividend yield?
Dividend yield is annual dividend per share divided by stock price, expressed as a percentage. A $100 stock paying $3 in annual dividends ha…
- What is compound interest?
Compound interest is interest earned on both the principal AND previously-earned interest. Formula: A = P(1 + r/n)^(nt). At 7% annual return…
what is the difference between…(1 answers)
- What is the difference between APR and APY?
APR (Annual Percentage Rate) is what you PAY to borrow — it includes fees but ignores compounding. APY (Annual Percentage Yield) is what you…
Adjacent clusters
Related question families with overlapping audience or methodology.
- Business + productivity
Methodology, frameworks, and decision rules used by founders, marketers, and operators.
- Habits + mindset
Habit formation, mental models, focus, and the science of personal change.
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