Free to use – No personal details required – 2025 UK Data

Downsizing Costs Calculator

Last Updated: 21st August 2025

How to use this calculator

Start by entering the current value of your home and your remaining mortgage in the “Selling your current home” section. You’ll also need to input your estate agent fee percentage and any mortgage exit fees.

Next, move to the “Buying your new home” section. Select the location of your new property (England/Northern Ireland, Scotland, or Wales) and indicate if you’re buying an additional property, as this affects the property tax. Enter the price of your new home and the deposit amount you plan to put down. If your deposit exceeds the new home’s price, a warning will appear.

Finally, enter your estimated legal fees, mortgage setup fees, moving costs, and survey costs.

As you adjust any of these details, the calculator will instantly update the results. You’ll see a breakdown of your selling costs, the net cash from your sale, your new home’s details (including property tax, legal fees, and other buying costs), and the total cash needed for the purchase. The calculator will also show the total combined fees and taxes for both selling and buying, and most importantly, the overall cash impact of your downsizing move.

The figures will update automatically.

👇Use the calculator 

How this calculator works

This calculator estimates the financial impact of downsizing your home based on the information you provide.

It processes details such as your current home’s value, remaining mortgage, the new home’s price, your deposit, and various associated fees.

The calculator also accounts for different property tax scenarios, with rates varying by region and if you’re purchasing an additional property.

The calculation is based on the following main formulas:

Net Cash from Sale = Current Home Value – Total Selling Costs – Remaining Mortgage

Total Selling Costs = Estate Agent Fees + Mortgage Exit Fees

Total Buying Fees & Taxes = Property Tax + Legal Fees + Mortgage Setup Fees + Moving Costs + Survey Costs

Cash Needed for Purchase (including deposit) = Deposit Amount + Total Buying Fees & Taxes

Overall Cash Impact = Net Cash from Sale – Cash Needed for Purchase

Adjustments are made to reflect common features of downsizing:

Property location. The specific property tax (Stamp Duty Land Tax, Land and Buildings Transaction Tax, or Land Transaction Tax) is applied based on the selected region (England/Northern Ireland, Scotland, or Wales).

Additional property. Selecting this option applies an additional rate of property tax to the purchase.

Deposit amount. A warning is displayed if the deposit entered exceeds the new home’s purchase price.

The results are displayed instantly as you make changes to your inputs, showing an estimate of your total selling costs, the net cash received from your sale, your total buying fees and taxes, the cash needed for the new purchase, and the final net financial impact you may experience.

All calculations assume typical market conditions and rates. The figures provided are for illustrative purposes only, and actual outcomes will depend on your individual circumstances, property valuations, and changes in tax laws.

👇Use the calculator 

Understanding the limitations of this calculator

This calculator provides an estimation of typical downsizing costs and financial impacts based on the information you enter. It does not provide personalised financial advice or guarantee the exact costs or proceeds you will experience.

No adjustments are made for future changes in property values, mortgage interest rates, or market conditions beyond the point of calculation. The calculator does not account for all individual financial circumstances, potential capital gains tax implications on sale (where applicable), specific local council taxes, or other legal and tax implications unique to your situation.

All outputs from this calculator are for illustrative purposes only and should not be relied upon for financial planning or decision-making. It does not replace regulated financial or legal advice, and it does not represent a comprehensive review of all costs or scenarios applicable to a property sale and purchase.

For standard property transactions and typical personal circumstances, the calculator provides estimates that broadly reflect what might be incurred under current market conditions and tax rules (as of June 2025).

The methodology and figures used are appropriate for general use, but they do not incorporate every detail or eligibility requirement that may apply to your individual case, such as specific lender fees, conveyancing complexities, or unforeseen moving expenses.

If you have a complex situation, unusual property characteristics, or specific financial arrangements, the actual costs or net proceeds may be higher or lower than the estimate shown here.

👇Use the calculator 

Quick and easy

Downsizing costs calculator

Work out the potential financial impact of downsizing your home by entering your property values, mortgage details, and moving costs, with results showing estimated selling costs, buying fees, and the net cash you may gain or need.

Options

Selling your current home
Buying your new home


Deposit cannot exceed new home price.The deposit should not exceed the price of the new home.

Results

Selling your current home

Home value:£0.00

Estate agent fees:£0.00

Mortgage exit fees:£0.00

Existing mortgage repaid:£0.00

Total selling costs (fees & mortgage repaid):£0.00

Net cash from sale:£0.00

Buying your new home

New home price:£0.00

Deposit:£0.00

New mortgage amount:£0.00

Stamp duty (SDLT):£0.00

Legal fees:£0.00

Mortgage setup fees:£0.00

Removal costs:£0.00

Survey costs:£0.00

Total buying fees & taxes:£0.00

Cash needed for purchase (inc. deposit):£0.00

Overall downsizing impact

Total fees & taxes (selling & buying):£0.00

Overall cash impact:

£0.00

Disclaimer: This calculator provides an estimation of typical downsizing costs based on current tax rules (as of June 2025). Tax laws are subject to change and specific circumstances may vary. Always seek professional financial and legal advice tailored to your individual circumstances.

Why use our downsizing calculator?

Downsizing involves more than just selling one home and buying another. Estate agent fees, property taxes, legal costs, and moving expenses can all affect the final outcome. This calculator brings those details together and gives you an estimate of the overall financial impact, so you can see more than just the difference in house prices.

It shows you the costs of selling, including estate agent fees and mortgage exit charges, alongside the full buying costs for your new property. Regional property taxes are applied automatically, and the results also reflect whether you are buying an additional property. By combining all of these elements, the calculator estimates your net cash from the move and highlights the overall financial effect of downsizing.

The results update instantly as you adjust the figures, so you can test different home values, fees, and purchase costs before making decisions. This makes it easier to explore “what if” scenarios and understand how various factors may change the outcome.

The benefit is transparency. Instead of working through separate costs in isolation, the calculator provides a single view of selling, buying, and moving expenses, helping you see the estimated net position of your downsizing move in one place.

Our guarantees to you!

Based on the latest data

Updated regularly using trusted UK sources.

Always free to use

Open access for everyone with no sign-up or hidden costs.

Easy to use

Clear inputs, instant results, no confusion.

Your privacy is protected

We don’t collect or store any personal information.

Sarah downsizes to raise funds

Sarah, aged 68, owns a house valued at £450,000 with £50,000 remaining on her mortgage. Her children have moved out, and she wants to reduce her living expenses and free up funds for retirement. She decides to sell her current home and buy a smaller flat for £250,000.

Sarah’s downsizing scenario

Sarah sells her current home for £450,000. After typical selling costs, including a 1.5% estate agent fee (£6,750), legal fees (£1,500), and repaying her £50,000 mortgage, she has £391,750 in net cash from the sale. She then purchases her new flat for £250,000.

This involves various buying costs such as Stamp Duty of £2,500 (based on current England rates), legal fees (£2,000), a survey (£500), and moving costs (£1,000), totalling £6,000. The overall cash she needs for this purchase is £256,000.

After both transactions are complete, Sarah successfully releases £135,750 in tax-free capital (£391,750 net cash from sale minus £256,000 cash needed for purchase).

This significantly boosts her retirement funds, and her new flat also comes with lower ongoing expenses, such as council tax and utility bills.

David and Maria downsize to reduce outgoings

David and Maria, both 62, own a house worth £300,000 with a £100,000 interest-only mortgage. They are looking to eliminate their mortgage payments and significantly reduce their monthly outgoings before fully retiring.

They decide to sell their current home and purchase a smaller bungalow for £200,000, aiming to buy it mortgage-free.

David and Maria’s downsizing scenario

They sell their home for £300,000. After accounting for selling costs like a 1.5% estate agent fee (£4,500), legal fees (£1,200), and repaying their £100,000 mortgage, they are left with £194,300 in net cash from the sale.

Their new bungalow costs £200,000. The buying costs include Stamp Duty of £1,500, legal fees (£1,800), a survey (£400), and moving costs (£800), adding up to £4,500. This means the total cash needed to purchase the new home is £204,500.

While the net cash from their sale (£194,300) doesn’t quite cover the full cash needed for the new purchase (£204,500), they use £10,200 from existing savings to cover the shortfall.

This allows them to buy the new home outright, eliminating their £100,000 mortgage and achieving their goal of a retirement free from mortgage payments and with significantly reduced monthly bills.

Our other property calculators

Second Home Equity Release Calculator

Estimate how much equity you may be able to release from an existing second home or your main residence to help purchase a second home

Rent Affordability Calculator

Check if you can afford a rental property based on landlord requirements and your monthly budget to understand approval vs comfortable living

Equity Release Calculator

Explore various equity release income scenarios, including enhanced options. Free to use, instant results and no personal details needed

Home Reversion Calculator

Explore various home reversion scenarios, including enhanced options. Free to use and no personal details needed

Use our calculators anywhere

Our calculators are fully responsive, adjusting to any screen size. Whether you’re on your phone, tablet, or laptop, you can easily access and use them wherever you are.

The layout is designed to be simple and user-friendly, ensuring you get accurate results quickly, no matter the device.

Use them anytime, wherever you want!

What's HOT?

This week's most popular calculators

Slang Translator

Perfect for keeping up with what younger generations are saying

Compound Interest Calculator

Explore different compounding scenarios for both savings and loans

Can I Afford To Retire? Calculator

Explore different affordability and income scenarios

Income Tax & Deductions Calculator

Explore different tax and deduction scenarios including student loans, pensions and bonuses