The Rule of 72 is a quick mental math shortcut for estimating how many years it takes an investment to double. Learn the formula, worked examples, how accurate it really is, and how to use it in reverse.
July 15, 2026
The 50/30/20 rule splits your after-tax income into 50% needs, 30% wants, and 20% savings and debt payoff. Learn the formula, worked examples, what counts as a need vs a want, and how to adjust it when your numbers don't fit.
July 8, 2026
Compound interest is interest calculated on your original principal plus all the interest that has already accumulated. Learn the formula, see worked examples, use the calculator, and understand why compounding is the single biggest driver of long-term wealth.
July 7, 2026
Cash on cash return measures your annual pre-tax cash flow as a percentage of the total cash you invested in a property. Learn the formula, see worked examples, understand what 8-12% means in practice, and how it differs from cap rate and ROI.
July 1, 2026
Gross Rent Multiplier (GRM) is a quick screening tool that divides a property's price by its annual gross rent. Learn the formula, how to use it in reverse, what counts as a good GRM, and where it falls short.
June 29, 2026
LTV (Loan to Value Ratio) is your mortgage balance as a percentage of your property's value. Learn why lenders treat 80% as the key threshold, how LTV falls as your property appreciates and your loan pays down, and use our free LTV calculator.
June 25, 2026
Cap rate (capitalization rate) is the ratio of a property's net operating income to its value, expressed as a percentage. Learn the formula, worked examples, what counts as a good cap rate, and how it fits into a complete investment property analysis.
June 21, 2026
An asset is anything you own that has financial value. Learn the different types of personal assets, how they build net worth, and how to track them effectively.
June 17, 2026
A liability is anything you owe: mortgage, loans, credit cards. Learn how liabilities affect your net worth and retirement plan, with plain-English examples.
June 15, 2026
A 401(k) is a tax-advantaged retirement savings account offered through your employer. Here's how it works, why it matters, and how to make the most of it.
June 9, 2026
Interest rates are one of the most influential forces in personal finance and the broader economy. Understanding how they work can help make smarter decisions about borrowing, saving, and investing.
March 18, 2026
A quick overview of the FIRE (Financial Independence Retire Early) movement.
February 3, 2026
Inflation is the general rise in prices across a broad range of goods and services over a period of time. Measured by economic indexes such as the Consumer Price Index (CPI) or Personal Consumption Expenditures (PCE) index.
January 26, 2026
A comprehensive glossary of terms used in investing in industries such as the real estate industry, providing clear definitions and explanations to help you understand key concepts.
January 20, 2026