[https://www.financialsamurai.com/three-home-buying-rules-for-all-to-follow/#:~:text=Before buying a home%2C you,you run into financial trouble.](https://www.financialsamurai.com/three-home-buying-rules-for-all-to-follow/#:~:text=Before buying a home%2C you,you run into financial trouble.)

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When , you can already buy more home if you keep your spending as a percentage of gross income fixed. The danger emerges when you break this home-buying rule percentage to buy an even more expensive home.

The people most at risk of breaking the first rule of home-buying are middle income to lower income people.

Spending 40% of your monthly $50,000 gross income on a mortgage still leaves you with $30,000 in gross income. However, spending 40% of your monthly $5,000 gross income leaves you with a much smaller cushion.

You must be able to take care of your basic needs with the remaining money. Therefore, it is safer to spend less of your monthly gross income on a mortgage the more income challenged you are.

Home-Buying Rule #2: Have at least 30% of the home value saved up in cash or semi-liquid assets.

Before buying a home, you should have at least 30% of the value of the home saved in cash. 20% is for the downpayment to avoid PMI insurance and get the lowest mortgage rate. The other 10% is for a healthy cash buffer just in case you run into financial trouble.

I realize that there are programs that allow you to put down a smaller down payment. However, during times of maximum uncertainty, it’s better to have a larger financial cushion.

The homeowners who got blown out the quickest during the previous recession had minimal down payments. With minimal equity, the temptation to walk away from a mortgage is much greater. The thousands who did between 2008 -2012 missed out on one of the largest real estate recoveries ever.

If you are planning on buying a home within the next six months, keep at least the 20% down payment in cash. It is unwise to invest your downpayment in stocks and other risk assets if your home-buying time horizon is so short.

If you don’t have at least 30% of the value of the home saved up, it’s time to curtail your desires. Eat ramen noodles for the next six months to save money. Start a side hustle to boost your income.

Borrowing the downpayment from the Bank of Mom is pretty common nowadays. However, before you do, you need to ensure that you aren’t putting your parents at financial risk.

Home-Buying Rule #3: Limit the value of your target home to no more than 3X your annual household gross income.

The final part of my 30/30/3 rule is great for doing a quick scan at homes you can afford.

Home affordability based on cash flow is a function of the price you pay for the home. If you are able to meet the first two home-buying rules, then you can tie it all together with the final home-buying rule.

Rule #3 is a quick way for homebuyers to screen for homes in an affordable price range. The rule also takes into consideration down payment percentages and prevents one from stretching too much, even with a high down payment.

If you earn $100,000 a year, you can comfortably afford up to a $300,000 home. Or maybe you are lucky enough to earn a top 1% income of $500,000 a year. If so, then you can comfortably afford up to a $1,500,000 home.

Again, with mortgage rates collapsing, housing affordability has gone up. Therefore, you could stretch the third home-buying rule and extend the home value up to 5X your annual household income.