Picture two people with the same salary. The first finances a R$ 80,000 car. The second buys a small apartment and rents it out. At the end of the month, the first has one more payment leaving the account; the second has rent coming in. That simple difference is the best-known idea in Rich Dad Poor Dad by Robert Kiyosaki: an asset puts money in your pocket, a liability takes money out.
The book's yardstick (and why it differs from accounting)
In traditional accounting, an asset is anything you own that has value: a house, a car, a phone. Kiyosaki suggests a more practical yardstick based on cash flow. For him, what matters isn't how much something is worth, but which way the money flows every month.
- Assets: a rented property, dividend-paying stocks, fixed income bonds, a business that runs without you, royalties.
- Liabilities: a financed car, the credit card bill, a personal loan, and anything you own that only generates expenses.
The yardstick isn't perfect. A car you use to drive for a ride-hailing app, for example, does bring in money. Even so, it forces a useful question before every big purchase: is this going to pay me, or am I going to pay for it?
So is your own home a liability?
This is the most controversial part of the book. By the cash flow yardstick, the home you live in is a liability: it brings in no income and still charges you property taxes, building fees, maintenance and, if it's financed, interest for many years.
But the story doesn't end there. Owning your home has two effects that yardstick ignores:
- You stop paying rent. The money you save works like indirect income.
- The property may appreciate over time and grow your net worth.
In practice, the right question isn't "is a house an asset or a liability?" but "is buying cheaper than renting and investing the difference?". The answer depends on the mortgage rate, rent prices in your area and how much the money would earn if it stayed invested. When interest rates are high, renting and investing usually comes out ahead. When rates are low, buying tends to make more sense.
You can test this with your own numbers in the buy vs. rent calculator, which compares your net worth in both scenarios over the years. If you've already decided to finance, it's worth seeing how much total interest you'll pay with the SAC (constant amortization) loan simulator.
What changes when you use this yardstick
The most useful takeaway from the book isn't the decision about the house. It's the habit of looking at every purchase through its cash flow. Someone who gets a raise and immediately trades up their car, buys a bigger TV in installments and moves to a pricier rental is buying liabilities. Income went up, but monthly outflows went up with it, and money is just as tight at the end of the month. The book has a name for this cycle, and we cover it in the post about the rat race.
The opposite path is to use the money left over to buy assets, little by little. You don't need to start with real estate: a monthly contribution to fixed income is already an asset, because it earns interest every month. Over time, those earnings add up and start paying part of your expenses. That's the principle behind passive income, and it starts with the habit of paying yourself first.
A quick test for your next big purchase
Before you sign a contract or put something expensive on installments, ask yourself three questions:
- Will this make money, save money or just cost money every month?
- How much will I spend each month to keep it (insurance, maintenance, interest)?
- If I invested that same amount instead, how much would I have five years from now?
Nobody is saying you can't buy liabilities. A car, a trip and a comfortable home are part of a good life. The point is to buy knowing what each thing is, and to make sure your asset column grows faster than your liability column.
This content is educational and does not replace personalized financial advice.