Short answer
A buy to let accountant applies the finance cost restriction that limits mortgage interest relief to a basic rate tax reduction, splits repairs from capital improvements, and files rental accounts that stand up if HMRC asks questions.
Property accountants
Accountant for buy to let landlords
Buy to let accountants: finance cost restriction, repairs versus improvements, jointly owned property and Self Assessment filed correctly. Fixed fee.
Short answer
A buy to let accountant applies the finance cost restriction that limits mortgage interest relief to a basic rate tax reduction, splits repairs from capital improvements, and files rental accounts that stand up if HMRC asks questions.
Written and reviewed by Waqas Sagar Member of ICAEW, Fellow of ACCA, Fellow of AAT, a double graduate and entrepreneur at heart, helping startups grow and serving thousands of businesses nationwide with an excellent team. Published by LimitedCompany.Accountants, 12 London Road, Morden, London SM4 5BQ. Reviewed 12 September 2026 against 2026/27 UK rates and current Companies House and HMRC guidance.
Regulated by
Regulated & AML supervisor
AAT fellow member
Xero Gold PartnerCertified advisor
QuickBooks PartnerCertified ProAdvisor100+ yearsCombined team experienceFully insuredUp to £2m indemnityWhat this means for your company
A buy to let accountant applies the finance cost restriction that limits mortgage interest relief to a basic rate tax reduction, splits repairs from capital improvements, and files rental accounts that stand up if HMRC asks questions.
01
The finance cost restriction
02
Repairs or improvements
03
Joint ownership and allowances
The finance cost restriction
Mortgage interest on residential lettings is no longer a deduction from rental profit. Instead it gives a basic rate tax reduction. For higher rate taxpayers that has increased taxable income materially and can push landlords into higher bands or remove the personal allowance. We calculate it properly and show the effect.
Repairs or improvements
Replacing like with like is normally a deductible repair. Upgrading, extending or converting is capital, relieved only against a future gain. The line is genuinely fine, for example a new kitchen of similar quality against a significantly better one, so we document the reasoning at the time rather than reconstructing it years later.
Joint ownership and allowances
Jointly owned property between spouses is taxed 50:50 by default unless the beneficial ownership differs and a declaration is made. Where one partner pays basic rate and the other higher rate, getting this right is often the single biggest saving available. Replacement of domestic items relief also applies to furnished lettings.
Before you act
Rates, thresholds and deadlines quoted here reflect the current UK position and current HMRC and Companies House guidance. Check GOV.UK, or ask us, before relying on them for your own business.
Local help
Talk to a limited company accountant near you
We work with company directors across London and Surrey from our office at 12 London Road, Morden, London SM4 5BQ. Pick your area, or send the form below and we will call you back.
Frequently asked
Accountant for buy to let landlords: questions directors ask
Can I still deduct mortgage interest?
Not from profit. You get a basic rate tax reduction instead, which is worth less to higher rate taxpayers.
Is a new boiler deductible?
A like for like replacement generally is. An upgrade as part of a wider improvement generally is not.
Should I transfer a share to my spouse?
Often worthwhile where tax rates differ, but it needs the paperwork done correctly. We advise per case.
Should property income for accountant for buy to let landlords be held personally or in a company?
The answer depends on financing, existing gains, income tax rates, extraction plans and long-term ownership. Moving an existing property can trigger tax and legal costs, so compare the full life-cycle position before changing ownership.
Which property costs are revenue expenses and which are capital for accountant for buy to let landlords?
Repairs that restore an asset are commonly revenue costs, while improvements and acquisition costs are usually capital. The distinction affects current tax relief and the gain on a later sale, so invoices should describe the work clearly.
What records are needed for accountant for buy to let landlords?
Keep bank statements, sales and platform reports, purchase invoices, payroll records, VAT workings, finance agreements and Companies House correspondence. We confirm the exact list at onboarding and identify gaps before a filing deadline becomes urgent.
How much does help with accountant for buy to let landlords cost?
The fee depends on transaction volume, record quality, VAT and payroll requirements, historic catch-up and the level of reporting needed. We agree a fixed scope and price before technical work starts, with published packages available on our fees page.
Can you take over accountant for buy to let landlords from another accountant?
Yes. We request professional clearance, collect the prior records and authorities, check the next Companies House and HMRC deadlines, and give you one clear handover list. The process is normally completed remotely.
Can accountant for buy to let landlords be handled online?
Yes. We work through secure cloud records, scheduled reviews and digital approvals, while keeping a named team available by phone, video call and email. Clients can also visit our Morden office by appointment.
Which accounting software works best for accountant for buy to let landlords?
We regularly work with Xero, QuickBooks, FreeAgent, Sage and connected sales or expense apps. The right setup depends on transaction volume, integrations and the reports you need, not simply the software brand.
Google reviews
What Our Clients Say
“We worked with a few different accountants before finally settling with Accotax, and we're really glad we did. They take the time to understand how our business works and what our needs are. Anum, who looks after our account on a day-to-day basis, including reconciling invoices and preparing the annual accounts, is amazing, professional, efficient, and follows the processes we have put in place together. Accotax has made our accounting experience much smoother and easier. We see them as a long-term partner as our business continues to grow. I would 100% recommend them.”
“I am very satisfied with the service provided by Muhammad Saifullah. He has been handling my tax situation in the UK with great professionalism, clarity and attention to detail. He took the time to explain every step of the process and made a complex situation much easier to understand. I felt confident and well supported throughout.”
“I had a positive experience with Accotax. The work was completed promptly, my tax return was successfully filed, and I received a refund of overpaid tax. I found the cooperation efficient and helpful. Special thanks to Muhammad Saifullah for his assistance.”
Included approach
Organised, explained, on schedule.
Clear scopeDeadline visibilityHuman support