Mastering Home Affordability in Massachusetts: The 28/36 Rule Explained

Buying a home in Massachusetts can feel overwhelming, especially when trying to figure out what you can actually afford. Rising prices and complex costs often cause stress and confusion. But there is a simple way to get a clear picture of your budget without math anxiety. The 28/36 rule offers a straightforward guideline to help you understand how much house fits your income and debt situation. This mini guide breaks down the rule and walks you through practical steps to calculate your affordability in just a few minutes.

!Eye-level view of a suburban Massachusetts neighborhood with single-family homes and tree-lined streets

Understanding the 28/36 Rule

The 28/36 rule is a classic budgeting guideline used by lenders and financial advisors to determine how much you should spend on housing and debt. It means:

• Your housing costs should not exceed 28% of your gross monthly income.

• Your total debt payments (including housing, car loans, credit cards, etc.) should not exceed 36% of your gross monthly income.

  
  

This rule helps keep your monthly payments manageable and reduces the risk of financial strain. It’s especially useful in Massachusetts, where home prices and living costs can be high.

Step 1: Calculate Your Monthly Income

Start by figuring out your gross monthly income. This is your total income before taxes and deductions. For example, if you earn $100,000 per year, divide that by 12 months:

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$100,000 ÷ 12 = $8,333 gross monthly income

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This number sets the foundation for your affordability calculations.

Step 2: Estimate Your Mortgage Payment

Next, estimate your monthly mortgage payment. Use an online mortgage calculator and enter:

• The home price you are considering

• Current interest rates (around 6% as of now)

• Loan term (usually 30 years)

  
  

For example, a $350,000 home at 6% interest might have a monthly principal and interest payment around $2,100.

Remember, this is just the base mortgage payment.

Step 3: Add Taxes and Insurance

Property taxes and homeowners insurance add to your monthly housing costs. In Massachusetts, property taxes vary but typically range from 1% to 2% of the home’s value annually.

For a $350,000 home:

• Annual taxes and insurance might be $5,250 (1.5% average)

• Monthly cost: $5,250 ÷ 12 = $438

  
  

Add this to your mortgage payment:

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$2,100 + $438 = $2,538 total monthly housing cost

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Step 4: Include HOA Fees if Applicable

If you’re buying a condo or a home in a community with a Homeowners Association (HOA), include those fees in your housing costs. HOA fees can range widely but often fall between $200 and $500 per month.

For example, if your HOA fee is $300:

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$2,538 + $300 = $2,838 total monthly housing cost

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Step 5: Factor in Other Debts and a Buffer for Life

Add your other monthly debt payments, such as car loans, student loans, and credit card minimums. The total of all debts should not exceed 36% of your gross monthly income.

Using the $8,333 monthly income example:

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36% of $8,333 = $3,000 total debt limit

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If your housing costs are $2,838, that leaves about $162 for other debts, which might be tight. You may need to adjust your home price or pay down debts.

Also, leave room for unexpected expenses and lifestyle needs. A buffer helps you avoid financial stress.

!Close-up view of a calculator, mortgage documents, and a pen on a wooden table

Example: What Can You Afford with a $100,000 Income?

Let’s put it all together with a real example:

• Gross annual income: $100,000

• Gross monthly income: $8,333

• Max housing cost (28%): $2,333

• Max total debt (36%): $3,000

  
  

If you want to buy a home in the Boston suburbs, where prices are rising about 4% in 2026, aim for a home price that keeps your monthly housing costs under $2,333.

Using a mortgage calculator at 6% interest:

• A $350,000 home results in roughly $2,100 mortgage payment

• Add $438 for taxes and insurance

• Total $2,538 housing cost, which is slightly above 28% limit

  
  

You might consider a slightly lower price or increase your down payment to reduce the loan amount.

Why This Matters in Massachusetts

Massachusetts housing prices have been climbing steadily. The Boston suburbs, in particular, are expected to see a 4% increase in 2026. This means affordability calculations need to be realistic and forward-looking.

Using the 28/36 rule helps you avoid overextending yourself financially. It keeps your budget balanced and your home purchase sustainable.

!High angle view of a Massachusetts real estate market chart showing rising home prices

Final Thoughts

Mastering home affordability starts with clear numbers and simple rules. The 28/36 rule gives you a practical way to understand what you can afford without stress. Calculate your income, estimate housing costs including taxes and fees, add your debts, and keep a buffer for life’s surprises.

If you want a personalized affordability guide tailored to your situation, send a message with the word AFFORD. Stay calm and confident as you navigate the Massachusetts real estate market.

Your dream home is within reach when you know your numbers.

Your journey matters. I’m growing with you every step of the way.

If you want clarity on what comes next, I’m here.

— Briana

Keep reading: Essential Tips for Successful Commercial Real Estate Investing in 2025 and A Simple Guide to 1031 Exchanges for Investors in 2025.