Buying your first buy-to-let means budgeting for more than the deposit. Property tax, mortgage and legal fees, work needed before tenants move in, ongoing landlord costs and periods without rent can all affect how much cash you need.
Before making an offer, separate the costs you need for completion from the money you will need to set up and run the property. That gives you a clearer view of whether the purchase still works after you account for the real costs. It also helps to understand where those costs sit within the wider buy-to-let mortgage process.
Before buying your first rental property
UPFRONT
Work out the cash needed to complete
Your deposit, property tax, legal work, valuation and mortgage fees can all be due before or around completion.
MORTGAGE
Check the deposit and monthly cost
First-time landlord mortgage options can depend on the loan-to-value, expected rent, property type, rates and fees.
LET-READY
Budget for the property setup
Repairs, cleaning, insurance, safety work and other landlord requirements may need paying for before the first tenancy begins.
BUFFER
Keep cash after completion
Repairs, empty periods and unexpected costs are easier to manage if the purchase does not use every pound you have available.
Do the numbers work?
Test the borrowing, expected rent and potential yield before you commit.
Costs you may need before completion
The largest upfront amount is usually the deposit, but it is not the only cash you may need before the property becomes yours.
Deposit and loan-to-value
Deposit and LTV requirements vary by lender and can affect mortgage choice, pricing and rental-cover calculations.
Mortgage and valuation fees
Product, arrangement, valuation and advice fees may apply. Some fees can sometimes be added to the mortgage, but doing so can increase the interest you pay over time.
Legal and conveyancing costs
Budget for the solicitor or conveyancer, searches, registration and any extra leasehold or company-related legal work that applies to the purchase.
Survey and specialist checks
Depending on the property, you may choose additional surveys or need specialist reports before committing to the purchase.
Buy-to-let Stamp Duty and property tax
Property tax can be one of the highest costs outside the deposit. The tax system depends on where in the UK you buy and whether you already own another residential property.
In England and Northern Ireland, higher Stamp Duty Land Tax rates can apply when the purchase means you will own more than one residential property. Scotland and Wales use different property transaction taxes and additional-property rules.
It is also worth separating first-time landlord from first-time buyer. In England and Northern Ireland, first-time buyer SDLT relief requires you to intend to occupy the property as your only or main residence, so a property bought specifically to let would not normally qualify for that relief.
Check the tax position before making an offer and take appropriate tax or legal advice if you are unsure how the rules apply to you.
Factor stamp duty into your budget
Estimate the tax that may apply to your buy-to-let purchase.
Costs before the first tenant moves in
Completion is not always the end of the upfront spending. A property may need work and landlord-specific arrangements before it is ready to let.
PROPERTY WORK
Repairs, cleaning and basic setup
Allow for work needed before tenants move in, such as cleaning, decoration, locks, flooring, appliances, heating repairs or other essential maintenance. A cheaper purchase can become expensive if significant work is required immediately.
INSURANCE
Arrange suitable landlord cover
A standard homeowner policy may not be suitable once the property is rented. Buildings, landlord, contents, legal-expenses or loss-of-rent cover may be relevant depending on the property and how you plan to let it.
LANDLORD RULES
Budget for safety and tenancy requirements
Safety checks, alarms, licensing, energy requirements, tenancy setup and deposit arrangements can all create costs. The exact rules vary by property and across England, Wales, Scotland and Northern Ireland, so check the current requirements where you plan to buy.
In England, private-renting rules changed on 1 May 2026, so older landlord checklists may no longer reflect the current tenancy framework. Check current government and local-authority guidance before relying on a cost estimate.
Ongoing buy-to-let costs
Once the property is let, the rent is not the same as profit. Several costs can continue throughout ownership.
Mortgage payments
The mortgage remains one of the main ongoing costs. Current mortgage rates can help you benchmark pricing, while rate changes at remortgage can also change the amount you need to cover each month.
Repairs and maintenance
Boilers, appliances, roofs, windows, bathrooms and routine repairs can all create costs that do not arrive evenly each month.
Agent and management fees
Tenant-find, rent-collection and fully managed services can reduce the work you do yourself, but the fees reduce the rental income you keep.
Service charges and insurance
Leasehold service charges, landlord insurance and other property-specific costs should be included when you compare rent with your ongoing outgoings.
Empty periods
There may be gaps before the first tenant, between tenancies or while repairs are completed. Mortgage and property costs can continue even when no rent is coming in.
The wider cost of buying and running a buy-to-let property also includes expenses that continue after completion, not just the cash needed to purchase it.
How much cash buffer should you keep?
There is no single cash-buffer figure that suits every first-time landlord. A newer flat with predictable service charges may need a different reserve from an older house with a boiler, roof and more maintenance exposure.
Build the buffer around the costs you would still need to pay if rent stopped temporarily. That can include the mortgage, insurance, service charges, utilities, agent fees and a realistic allowance for repairs.
Keeping some money outside the purchase also gives you more flexibility if work costs more than expected or the first tenancy takes longer to begin.
WORTH KNOWING
If the purchase only works when the property is always occupied and no unexpected repairs happen, the budget may be too tight.
Tax and ownership structure
Rental income can create tax and record-keeping responsibilities, while the ownership structure can affect both tax and mortgage options.
Buying personally and buying through a limited company are not interchangeable. Mortgage rates, lender choice, administration and tax treatment can differ, so consider both mortgage and tax advice before choosing the structure.
Personal and limited company ownership can affect mortgage availability, administration, access to profits and the wider tax position.
Common first-time landlord mistakes often come from underestimating costs, mortgage criteria, property condition or the practical responsibilities of letting.
How Muttuo Mortgages can help
Your first buy-to-let needs to work from a mortgage point of view as well as on paper. We can review the borrowing, expected rent and deposit before you apply.
Review the expected rent, deposit and loan-to-value
Compare buy-to-let mortgage options from more than 100 lenders
Check how mortgage fees and repayments fit the wider purchase budget
Talk through your first buy-to-let
Explore buy-to-let mortgage options and understand what the borrowing could mean for your purchase budget.
Your property may be repossessed if you do not keep up with your mortgage repayments.
The Financial Conduct Authority does not regulate some buy-to-let mortgages.
Your first buy-to-let cost questions answered
What costs should I budget for when buying my first buy-to-let?
Budget for the deposit, property tax, mortgage and valuation fees, legal costs, any work needed before the property can be let, insurance, management, maintenance and periods without tenants.
How much deposit do I need for a buy-to-let mortgage?
The deposit depends on the lender, property, expected rent and your wider circumstances. Buy-to-let mortgages commonly have lower maximum loan-to-values than standard residential mortgages, so check the lender criteria before setting your purchase budget.
Do first-time landlords pay Stamp Duty?
Property tax depends on where you buy and what property you already own. In England and Northern Ireland, a buy-to-let bought as an investment would not normally qualify for first-time buyer SDLT relief because that relief requires an intention to occupy the property as your main residence.
Can mortgage fees be added to a buy-to-let mortgage?
Some lender or product fees can sometimes be added to the mortgage, subject to the product and loan-to-value limits. If you add a fee to the loan, you can pay interest on it over time, so compare the total cost as well as the upfront saving.
How much cash should I keep after buying a rental property?
There is no single amount that suits every landlord. Build your buffer around the mortgage and property costs you would still need to pay during an empty period, plus a realistic allowance for repairs and unexpected work.
Should I use a letting agent for my first rental property?
That depends on your time, experience and how much of the day-to-day work you want to manage. Agent services can reduce the workload, but their fees should be included when you calculate the rental return.
