Online calculator
Mortgage Calculator
Calculate loan amount, monthly payment, remaining balance and interest cost for a property purchase using price, closing costs, equity and repayment rate.
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What does this calculator do?
Use this mortgage calculator to estimate the loan amount and monthly payment for a property purchase. It includes purchase price, closing costs, equity, interest rate, initial repayment rate, analysis period and optional annual extra repayments.
Formula
Total capital needed = Purchase price + closing costs Loan amount = Total capital needed − equity Annual payment = Loan amount × (interest rate + repayment rate) Monthly payment = Annual payment ÷ 12 Remaining balance = Outstanding loan after interest, principal payments and optional extra repayments over the selected period
Example
Example: A property costs €450,000 and closing costs are €45,000. With €120,000 in equity, the financing need is €375,000. At 3.6% interest and 2.0% initial repayment, the annual payment is €21,000 or about €1.750 per month. After 15 years, a remaining balance usually still exists depending on extra repayments.
What does the mortgage calculator estimate?
It estimates total capital needed, resulting loan amount, the initial monthly payment and the remaining balance after the selected period. You also see approximate interest paid and principal repaid during that time.
Why do closing costs matter so much?
Many property purchases become challenging not because of the purchase price itself, but because of additional closing costs such as transfer tax, notary fees, land registry costs and possibly broker fees. These costs can materially change the financing structure.
How does the repayment rate affect the mortgage?
A higher initial repayment rate increases the monthly payment, but reduces the balance more quickly. That often lowers long-term interest cost. Comparing multiple repayment scenarios is therefore especially useful.
When do extra repayments help?
Extra repayments can noticeably reduce the remaining balance and make the financing more resilient. Even moderate additional payments each year can have a meaningful effect over time.
How should you interpret the result?
Use the outcome as a first planning tool for conversations with banks or brokers. For binding decisions you should also review income, reserves, subsidies, refinancing risk, fixed-rate terms and your broader life plans.
Frequently asked questions
What is a good equity share?
Lenders often view a stronger equity share positively. In many cases it is considered sensible to cover at least the closing costs from your own funds, often more if possible.
How high should the repayment rate be?
A higher repayment rate reduces debt faster but also raises the monthly payment. In practice, many borrowers choose around 2% or more if their budget allows it.
Why is there often a remaining balance after the fixed-rate period?
With classic annuity mortgages, the loan is usually not fully repaid during the first fixed-rate period. That is why refinancing is often required later.
Should I finance the closing costs as well?
That can be possible, but it increases leverage and risk. Many buyers try to cover at least the closing costs with equity to improve financing terms.
Does this replace a real mortgage offer?
No. The calculator is for first guidance only. Actual rates, fees, subsidies and underwriting terms depend on the specific lender and borrower profile.