First-Time Buyer Calculator
For Information Only
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Buying your first home is an exciting milestone. This calculator helps you understand the potential monthly costs involved. As a first-time buyer, there are several key things to consider.
The Deposit
Your deposit is the amount you pay upfront. A larger deposit means you borrow less, which results in lower monthly payments and often gives you access to better interest rates. Many first-time buyer schemes are designed to help with this hurdle.
Loan-to-Value (LTV)
This is the ratio of your mortgage loan to the property's value. For example, if you buy a £200,000 home with a £20,000 deposit, you are borrowing £180,000, which is a 90% LTV. Lenders use this to assess risk.
Additional Costs
Remember to budget for other costs beyond the deposit, such as legal fees, valuation fees, and stamp duty (though first-time buyers often get relief on this). These are not included in this calculator but are an important part of the overall cost.
Logic & Formulas
The monthly payment is calculated using the standard loan amortization formula. The calculator first determines the total loan amount by subtracting the deposit from the property value.
M = P [ i(1 + i)^n ] / [ (1 + i)^n – 1 ]
Where:
M= Monthly PaymentP= Principal Loan Amount (Property Value - Deposit)i= Monthly Interest Rate (Annual Rate / 100 / 12)n= Number of Payments (Loan Term in Years * 12)
For "Interest Only" mortgages, the calculation is simpler: Monthly Payment = P * i.