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The most important question before buying a property is: how much house can I actually afford? This calculator works backwards - from the affordable monthly payment to the possible purchase price. First the maximum monthly payment follows from your income times the housing cost ratio (a rule of thumb is about 35 percent of net income) minus existing loan payments. From that, the interest rate and the term give the maximum loan, and with your down payment the maximum price.
The calculation runs entirely locally in your browser, in pure JavaScript - nothing is uploaded and nothing is stored. The maximum loan is the present value of the maximum monthly payment over the term (the same annuity maths as in the loan calculator, just solved backwards). The maximum price is that loan plus your down payment. So you see at once how a larger down payment, a lower rate or a longer term changes your room to manoeuvre. Change an input and everything updates instantly.
An honest note: this is an orientation, not a financing commitment. Banks additionally check credit record, employment and a household budget, and usually require the closing costs to come from equity (see the closing-costs calculator). The housing cost ratio should stay conservative so that reserves and living costs are secure; 35 percent is an upper limit, not a target. Plan a buffer for maintenance and for rising rates after the fixed-rate period. Amounts in euros as an example. Not financing advice.
Specifications
Specifications
Input formats
Form inputs (no file)
Processing
Locally in your browser (JavaScript)
File upload
None
In 3 steps
Enter your monthly net income and existing monthly payments.
Enter the down payment, interest rate, term and the maximum housing cost ratio.
Read off the maximum price, maximum loan and maximum monthly payment.
Limitations:An orientation, not a financing commitment. Banks also check creditworthiness and a household budget and usually require the closing costs from equity. Keep the housing cost ratio conservative (35 percent is an upper limit); plan a buffer for maintenance and rising rates. Amounts in euros as an example. Not financing advice.
FAQ
Are my inputs uploaded?
No. The calculation runs entirely locally in the browser (pure JavaScript); nothing is sent or stored.
What is the housing cost ratio?
The share of net income that should at most go into the payment. A common rule of thumb is around 35 percent; more conservative is safer because reserves and living costs must remain.
Are the closing costs included?
No. The maximum price refers to loan plus down payment. The closing costs (around 10 percent) usually come on top from equity - work them out with the closing-costs calculator.
Why does more down payment raise the price more than the payment?
Because the down payment is added directly to the price, on top of the loan. More down payment also lowers the loan-to-value and often the rate.