Frequently Asked Questions

Our mortgage calculator uses standard industry formulas to provide highly accurate monthly payment estimates. The calculations account for your loan amount, interest rate, and term length to determine principal and interest portions.

However, actual payments may vary slightly due to property taxes, insurance, HOA fees, and lender-specific adjustments. Always confirm final numbers with your mortgage lender before committing.

Repayment Mortgage: Your monthly payment covers both principal (loan amount) and interest. You gradually pay off the entire loan and fully own the home by the end of the term.

Interest-Only Mortgage: Your monthly payment covers only interest charges. The entire principal is due in full at the end of the loan term. This option requires a separate repayment strategy and is riskier for most homebuyers.

Repayment mortgages are recommended for most homebuyers as they build equity over time.

Use the interest rate you currently have or expect to receive from your lender. Interest rates vary based on several factors:

• Your credit score (higher scores = lower rates)
• Down payment amount (larger down payments = lower rates)
• Loan term (shorter terms often have lower rates)
• Current market conditions
• Type of mortgage (fixed vs. variable rate)

To get accurate rates for your situation, compare offers from multiple lenders. We recommend checking with banks, credit unions, and online lenders.

Extra mortgage payments significantly reduce total interest and shorten your loan term. Even small additional payments compound dramatically over time.

For example, adding just £100-200 extra per month to a standard mortgage can save you tens of thousands in interest and potentially pay off your loan years earlier. The exact savings depend on your loan amount, interest rate, and payment amount.

Use our calculator to experiment with different scenarios and see the impact of extra payments on your specific situation.

Yes. Your financial data is completely secure. All mortgage calculations happen directly on your device. We do not collect, store, transmit, or access any of your personal or financial information.

• ✓ Numbers you enter stay on your computer
• ✓ Nothing is sent to our servers
• ✓ No tracking or data collection from calculator use
• ✓ Data saved locally for 7 days only (you can clear it)
• ✓ Complete privacy guaranteed

See our Privacy Policy for complete details on data handling.