How Much Deposit Do You Need for a Buy-to-Let Property? A Complete Guide
- Vincent Mak
- Mar 4
- 2 min read

Investing in a rental property can be a lucrative financial decision, but understanding how much deposit you need for a buy-to-let property deposit is crucial. Mortgage lenders have different requirements compared to residential mortgages, and securing the right deposit amount can impact your interest rates and loan terms.
What Is the Minimum Deposit for a Buy-to-Let Mortgage?
Typical Deposit Requirements
The deposit required for a buy-to-let property deposit is generally higher than for a residential mortgage. Most lenders require at least 25% of the property’s value, but some may accept as little as 20% or require up to 40%, depending on your financial situation and lender criteria.
Factors Affecting the Required Deposit
Several factors influence how much you need to put down as a buy-to-let property deposit, including:
Lender Requirements: Different lenders have varying deposit thresholds.
Property Value: A higher-value property may require a larger deposit.
Loan-to-Value Ratio (LTV): A lower LTV (higher deposit) often secures better mortgage rates.
Credit History: A strong credit score may help secure lower deposit requirements.
How a Larger Deposit Can Benefit You
Lower Interest Rates
A higher buy-to-let property deposit typically leads to lower interest rates, reducing your monthly repayments and increasing profitability.
Better Mortgage Deals
Lenders offer better mortgage products to those with larger deposits, making it easier to secure a competitive deal.
Increased Profitability
Lower mortgage repayments mean higher rental yield, improving your buy-to-let investment returns.
Buy-to-Let Mortgage Payment Calculator
Before committing to a deposit, use our Mortgage Repayment Calculator to estimate how much your monthly payment on an interest-only mortgage is. This will help you to find out your profit margins and estimate the ongoing costs.
How to Save for a Buy-to-Let Deposit
1. Remortgage Your Existing Home
If you already own a residential property, you could remortgage your home to release equity and boost your deposit for a buy-to-let property deposit.
2. Sell an Existing Buy-to-Let Property
If you already have an investment property, selling a buy-to-let property could free up funds for a larger deposit on a new rental property.
3. Save Up by Working Hard
Sometimes life doesn't have a shortcut. Building up your savings by increasing your income, reducing expenses, or taking on extra work can help you reach your buy-to-let property deposit goal faster.
4. Work with a Mortgage Broker
A mortgage broker can help you find lenders offering the best deposit options. Our team at Possible Mortgages can guide you through the process—visit our Contact Us page for expert advice.
Final Thoughts on Buy-to-Let Deposits
Understanding how much deposit is needed for a buy-to-let property deposit is key to making a successful investment. A higher deposit often results in better mortgage deals and increased profitability. If you're unsure about your deposit requirements, consult with a mortgage expert for tailored advice.
For more insights, explore our Knowledge Hub.
Your property may be repossessed if you do not keep up repayments on your mortgage. Not all Buy to Let Mortgages are regulated by The Financial Conduct Authority.
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