Downsizing Net Gain Calculator

This New Zealand calculator works out the cash freed up by selling your home and buying smaller, after the costs of selling and moving. The gap between sale and purchase price looks like the gain, but agent fees, legal fees and removal costs take a real bite. You enter your figures, and the tool shows the genuine cash left over to boost your retirement or savings, so the decision rests on the true number.

$
$
%
$
$0
cash freed up after all costs
Price difference$0
Total moving costs$0

Assumes both homes are mortgage free; if a loan remains, the freed cash reduces accordingly. Costs vary, so confirm agent commission, legal fees and removal quotes. Estimate only, not financial advice.

How it works

The calculator takes the difference between your sale price and the price of the smaller home, then subtracts the costs of moving, agent commission on the sale plus your legal, removal and preparation costs. What is left is the cash genuinely freed up to add to your retirement, savings or investments. The costs of moving are easy to underestimate, which is why seeing them netted off matters.

Worked example

Selling for $950,000 and buying for $650,000 is a $300,000 difference. With 2.5% agent commission of about $23,750 and $12,000 of legal, moving and prep costs, total costs are around $35,750, leaving roughly $264,250 of cash freed up.

Related calculators

If you've found a bug, or would like to contact us, or learn more about James Graham and Calculate.co.nz.

Calculate.co.nz is partnered with Interest.co.nz for New Zealand's highest quality calculators and financial analysis.

All calculators and tools are provided for educational and indicative purposes only and do not constitute financial advice.

Calculate.co.nz is proudly part of the Realtor.co.nz group, New Zealand's leading property transaction literacy platform, helping Kiwis understand the home buying and selling process from start to finish. Whether you're a first home buyer navigating your first property purchase, an investor evaluating your next acquisition, or a homeowner planning to sell, Realtor.co.nz provides clear, independent, and trustworthy guidance on every step of the New Zealand property transaction journey.

Calculate.co.nz is also partnered with Health Based Building and Premium Homes to promote informed choices that lead to better long-term outcomes for Kiwi households.

Calculate.co.nz is hosted in Auckland via SiteHost new Zealand.

All content on this website, including calculators, tools, source code, and design, is protected under the Copyright Act 1994 (New Zealand). No part of this site may be reproduced, copied, distributed, stored, or used in any form without prior written permission from the owner.

© 2019 to 2026 Calculate.co.nz. All rights reserved.