Home Buying Costs Calculator

Upfront cost of buying a home is much more than the deposit. Transfer tax, legal fees, survey, mortgage arrangement, and moving all add up. On a 300,000 purchase with a 60,000 deposit, you often need another 10,000-15,000 in cash to complete. Running the numbers before you offer avoids the last-minute scramble.

Quick example

With property price of 300,000 and deposit of 60,000 (plus transfer / purchase tax of 5,000 and legal fees of 1,500), the result is 69,000.00. Change any figure and watch the output shift — it's often more useful to see the pattern than to memorise the formula.

Which inputs matter most

You enter Property Price, Deposit, Transfer / Purchase Tax, Legal Fees, and Survey Fees.

What's happening under the hood

Straight sum of all cash outlays at purchase. Mortgage amount = price minus deposit (before any fees that might be added to the loan). The formula is listed in full below. If the number looks off, you can retrace the calculation by hand — that's the point of showing the working.

Why this matters

The deposit is only part of the cash a purchase demands. Transfer tax, legal and survey fees, lender charges, and moving costs together often add several percent of the price on top, and they all fall due around completion. Adding them up before making an offer is what avoids a last-minute shortfall.

What this doesn't capture

This total is the cash needed at completion under the figures entered. It does not include ongoing costs — property tax, insurance, utilities, maintenance, or any service charge — which begin after the purchase. It also assumes the fees are paid from cash rather than added to the mortgage, and that the amounts entered match the final quotes; actual fees vary by provider and jurisdiction.

Worked Example

On a 300,000 purchase with a 60,000 deposit, suppose transfer tax is 5,000, legal fees 1,500, a survey 500, mortgage arrangement 1,000, and moving 1,000. The total cash needed at completion is 60,000 + 9,000 = 69,000 — the deposit plus 9,000 of other upfront costs, which is 3% of the price. The mortgage required is the price minus the deposit: 240,000. Trimming any single fee, or putting down a larger deposit, changes the cash figure directly.

Educational Framing

The calculation is illustrative. Mortgage products, fee structures, and interest rates differ between providers and shift over time. The output helps compare scenarios — a longer term versus a shorter one, a larger deposit versus a smaller one — rather than treating it as a quote.