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Home Down Payment Fund Calculator

Work out home down payment fund instantly with clear inputs, formula shown and shareable results.

About Home Down Payment Fund Calculator

A down payment fund must cover both the deposit and the transaction costs — stamp duty, registration and legal fees typically add around 7% of price, and lenders will not finance them.

Formula

Down payment fund

Target = future price × down payment share + transaction costs; monthly = target / annuity factor

Worked example

With the default values below, Home Down Payment Fund Calculator returns Monthly Saving Required of $43,964.22. Change any input above and every figure here is recalculated in your browser.

Inputs used

Property Price Todayminimum 0
9,000,000
Years Until Purchaseaccepts 1–20
5
Annual Property Price Growthaccepts 0–20 %
6 %
Down Payment Share Requiredaccepts 5–60 %
20 %

Results

Monthly Saving Required
$43,964.22
Down Payment Target
$2,408,806.04
Stamp Duty And Transaction Costs
$843,082.11
Property Price At Purchase
$12,044,030.20

Step by step

  1. 1Values used
  2. 2Down payment fund
  3. 3Monthly Saving Required= 43,964.22
  4. 4Down Payment Target= 2,408,806.04
  5. 5Stamp Duty And Transaction Costs= 843,082.11
  6. 6Property Price At Purchase= 12,044,030.20

Assumptions and limits

  • The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take tax or fees or charges into account.
  • Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
  • Figures are estimates for planning only. Prices, returns, inflation and personal circumstances all change. This is not financial or tax advice — speak to a qualified adviser before making decisions.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Figures are estimates for planning only. Prices, returns, inflation and personal circumstances all change. This is not financial or tax advice — speak to a qualified adviser before making decisions.

Frequently Asked Questions

Why include transaction costs in the fund?

Because they must be paid from your own money on completion day, and they are large enough to derail a purchase.

Does property inflation make saving pointless?

It raises the target, which is why the fund should be invested rather than held in cash over a five-year horizon.

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