Buy-to-Let Tax Returns
We help Cardiff landlords file accurate buy-to-let tax returns, claim every allowable expense, and stay on the right side of HMRC. Whether you own one property or ten, we'll make sure you're not overpaying tax or missing deadlines.
Everything under buy-to-let tax returns
From rental income reporting to capital gains when you sell, we cover all the tax obligations that come with owning property in Cardiff and South Wales.
Rental Income Reporting
Accurate Self Assessment filings that capture all rental profits and allowable deductions.
Expense Claims & Deductions
Maximising claims for mortgage interest, repairs, insurance, letting fees and more.
Capital Gains Tax on Sales
Calculating and filing CGT when you dispose of a buy-to-let property.
Multi-Property Returns
Consolidated tax planning and compliance for landlords with several properties.
How we handle your buy-to-let tax return
If you own rental property in Cardiff or across South Wales, you need to file a Self Assessment tax return reporting your rental income and expenses. We take care of the paperwork, claim every allowable deduction, and make sure HMRC gets what they need on time. You focus on managing your property. We focus on keeping your tax bill as low as the law allows.
We start by gathering your records: rental income, mortgage statements, repair invoices, insurance, letting agent fees, even advertising costs. Then we calculate your taxable profit, claim reliefs like mortgage interest under the current rules, and file your return before the deadline. If you're selling a property, we'll also handle the Capital Gains Tax calculations and any main residence nominations that could save you money.
We make sure you claim every expense you're entitled to, so you're never overpaying HMRC.
More information
Common concerns we address
Many landlords worry they're paying too much tax because they don't know which expenses qualify. Others have been caught out by late filing penalties or confused by the mortgage interest relief changes. We've seen it all. Our job is to keep your records straight, your claims legitimate, and your compliance bulletproof.
Cardiff's rental market is strong thanks to demand from professionals, students and families, but that also means HMRC is paying close attention. Whether you own a city-centre flat or a family home in Pontypridd, we understand the local landscape and the specific tax rules that apply in Wales, including higher Land Transaction Tax rates on additional properties.
When a limited company makes sense
If you own multiple properties or your rental profits push you into a higher tax band, it might be worth holding them in a limited company instead. Corporation tax can be more favourable than income tax for larger portfolios. We'll talk you through the numbers and help you decide what structure works best for your situation, now and as you grow.
Once your return is filed, we stay in touch. Tax rules change, allowances shift, and your portfolio might expand. We're here year-round to answer questions, plan ahead, and make sure you're always a step ahead of the next deadline.
Worth considering
Furnished Holiday Let (FHL) Tax Returns
We prepare and file Furnished Holiday Let tax returns, checking qualifying days, allowable expenses and allowances, so your HMRC figures are correct and on time.
Furnished Holiday Let (FHL) Tax Returns→Property Portfolio Accounting
Rental income and expense accounting across multiple properties, with clean records, profitability by property, and HMRC-ready figures for returns and planning.
Property Portfolio Accounting→Landlord Accounting Services
Landlord accounting for rental income, allowable expenses and HMRC deadlines. Clear figures for Self Assessment, plus support for property sales and tax planning.
Landlord Accounting Services→Before you book
These answers are specific to landlords filing buy-to-let tax returns with us in Cardiff and South Wales.
What expenses can I claim on my buy-to-let tax return?
When does my Self Assessment tax return need to be filed?
Do I need to file a return if I only own one rental property?
How much tax will I pay on my rental income?
What happens if I sell a buy-to-let property?
Can you help if I own multiple properties?
Do I need to keep receipts for everything?
What if I've fallen behind on previous tax returns?
Let's talk about your buy-to-let tax return
Book a free consultation and we'll explain exactly how we can save you time, reduce your tax bill, and keep you compliant.
Book a free consultation