Mortgage Payment & Affordability Calculator

Use this to choose the best mortgage plan and check your affordability to buy a house.

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This calculator helps answer :
  1. Should I put more or less a downpayment? Should I choose a longer or shorter mortgage term?
  2. If I have enough cash to buy a house but have higher-yield investment opportunities, should I use a mortgage or make a cash offer to purchase?
Mortgage loan - Plan A
Purchase price
Downpayment
Loan amount
Loan term years
Mortgage rate
Monthly mortgage payment
Monthly Mortgage Payment Breakdown
Mortgage comparison
Plan A
Plan B
Plan C
Downpayment 100 %
Loan term (years) No loan
Mortgage rate
Investment yield
the expected return of investment when you invest extra cash
Credit score range
Monthly mortgage insurance (PMI)
Monthly mortgage payment
Federal income tax rate (highest bracket)
Wealth creation *
The winner plan ** winner winner winner

* The wealth creation is how much the net present value (NPV) the plan can create. Buying with all cash usually creates no wealth at the moment you buy the house because we assume the house price is fair so the NPV is zero. However, using a mortgage may create higher or lower wealth than buying with all cash, depending on your opportunity cost of using that cash. When your PMI is low and your investment yield is higher than the mortgage rate (APR), you can generate more investment income than the mortgage interest payment, bringing you more cash inflow in the long term. In financial terms, professionally, your NPV of utilizing a mortgage will be higher than the NPV of buying with all cash.

** The winner plan you may consider is the one creating the highest wealth as it brings a better financial outlook in the long term.

Check Your House Affordability

This calculator helps answer :
  1. What is the maximum house price I can afford? How do my budget, income, down payment, outstanding debts, and debt-to-income ratio affect my affordability?
  2. How do the mortgage rate, loan term, downpayment, closing fee, property tax, HOA & insurance affect my affordability?
Income & debt
Annual Income
Other debt payment / month
Current debt-to-income
Max debt-to-income
House & mortgage
Mortgage rate
Loan term (years)
Downpayment
Closing fee
Mortgage insurance
Property tax
Home insurance / year
HOA / month
You can afford
House max purchase price
Loan amount
Initial payment
Monthly mortgage payment
Total monthly payment
Prospective debt-to-income
Related Items
To buy or rent a house analysis
Mortgage refinance calculators
To sell or keep the house analysis