Use this affordability calculator to get an estimate of how much you can borrow. It asks a few quick questions about your current financial situation. The mortgage affordability calculator shows how much you could borrow based on your income and deposit amount. This tool gives you an idea of your home loan borrowing power and helps answer the question: how much mortgage can I afford?
To move forward in the buying process, lenders may offer pre‑qualification. That step confirms how much mortgage you can afford in practice. Knowing this helps you focus your search on homes within the right price range.
Try the Mortgage Affordability Calculator
Use the mortgage affordability calculator below to estimate how much you can borrow. In addition, the results help you plan your budget and compare scenarios with confidence.
Affordability Calculator
Note: This is an estimate. Actual affordability depends on lender criteria and local costs.
Calculation Assumptions for This Affordability Calculator
Disclaimer – Estimates Only
Results are for educational purposes and provide estimates only. Banks and providers may use different methods to calculate interest, fees, or returns. These tools do not constitute financial advice. Always confirm details with a qualified provider before making financial decisions. See our full disclaimer.
How the Calculator Works
Enter your income, monthly debts, and loan details. The calculator then shows an estimate of your borrowing capacity. Use your gross annual income, which is your salary before taxes and deductions. If you are buying with someone else, combine both salaries and enter the total.
The tool also considers your monthly debts. These are recurring payments such as minimum credit card payments, car payments, or student loans. For example, if you pay $200 for a car and $30 for a credit card, your monthly debts total $230. Adjust values to test different scenarios. Use the results as a guide, not a final decision.
Understanding Debt‑to‑Income Ratio (DTI)
Your debt‑to‑income ratio (DTI) compares your monthly debt payments to your gross monthly income. In other words, it shows how much of your income goes toward existing obligations. Lenders use DTI to decide how much you can borrow and whether you can manage new repayments.
Why DTI matters
DTI forms a major part of how banks decide what they are willing to lend. At the same time, it also helps you understand what you can comfortably afford. As a result, it highlights where you may be stretching the limits of your budget.
Typical lender preferences
Many lenders prefer a DTI under 40 percent. Some may allow higher ratios depending on credit history and deposit size. Improving your DTI by paying down debts or increasing income can expand how much mortgage you can afford.
How to use DTI in planning
For example, if your monthly income is $5,000 and your debts are $1,500, your DTI is 30 percent. With that ratio, you may qualify for a larger loan than someone with a 45 percent DTI. By testing different debt and income scenarios in the calculator, you can see how DTI affects your borrowing power.
What Shapes Your Home Loan Borrowing Power
Borrowing power means how much money a bank may lend you. It is based on how much you earn, what you spend, and any existing debt. In practice, it is the largest loan amount a lender might approve based on your income and expenses.
Several factors influence this amount. Income, debts, and the size of your deposit or down payment are major ones. Interest rates also matter. A lower rate can reduce your monthly mortgage payment and increase affordability. Savings balances and spending habits play a role as well. Lenders want to see that you can manage money responsibly. Loan term also matters. Longer terms lower repayments but increase the total cost over time.
Benefits of Using a Mortgage Affordability Calculator
This calculator helps you plan before speaking with a lender. It lets you test different loan types and terms. It also shows how small changes in income or expenses affect borrowing power. By using it, you gain confidence when exploring property options. You also have an estimate of what price range of homes to include in your search.
FAQs How Much Can I Borrow? Mortgage Affordability
Banks look at your income, debts, and credit history. They also review your spending habits and deposit size. As a result, your home loan borrowing power depends on both your financial profile and the lender’s rules. For more guidance see FHFA Mortgage Education Center, which provides practical resources on how lenders assess affordability and what borrowers should know before applying.
Debt‑to‑income ratio is one of the most important factors banks use when deciding how much to lend. It shows how much of your income already goes toward debts, and therefore how much room you have for a mortgage. At the same time, DTI helps you understand what you can comfortably afford. In other words, it highlights the point where you may be stretching your budget too far. As a result, keeping your DTI lower not only improves your chances of loan approval but also protects you from taking on repayments that could become unmanageable.
Many lenders prefer a debt to income ratio under 40 percent. In other words, your monthly debts should not exceed 40 percent of your gross monthly income. A lower ratio improves your chances of approval and may increase how much mortgage you can afford.
FAQs How Much Can I Borrow? Mortgage Affordability
A mortgage affordability calculator gives you a useful estimate. However, actual approval depends on lender policies and your full financial situation. Therefore, you should use the calculator as a guide and then confirm details with a lender.
Yes. Reducing debts, saving a larger deposit, or improving your credit history can all help. In addition, comparing different loan terms may increase your borrowing power. For example, a lower interest rate can reduce repayments and therefore allow you to borrow more.
Affordability depends on your gross annual income, monthly debts, and deposit. For instance, if you combine your salary with a co‑borrower’s salary, your borrowing power may increase. Consequently, the calculator helps you estimate how much mortgage you can afford before you speak with a lender.
More Tools to Plan Your Budget and Borrowing Power
Use this affordability calculator as a starting point. Then explore our other tools to refine your budget and prepare for the buying process.
- Learn the full Steps to Buying a House in our first time buyer guide.
- Try other tools in our Calculators Hub