Landlord & Property Tax · South West London
Landlord accountants in St. Mark's
Landlords in St. Mark's come to us for the rental accounts that get the detail right: the difference between a repair and an improvement, the replacement of domestic items relief, the correct split of jointly owned income, and the finance-cost restriction that catches higher-rate taxpayers. Fixed fees across South West London, nothing filed until you approve.
from £149 · fixed, per year
Next deadlines
- UK residential property disposals: CGT return and payment within 60 days of completion
- UK residential property disposals: CGT return and payment within 60 days of completion
- Online Self Assessment filing deadline and balancing payment due
- UK residential property disposals: CGT return and payment within 60 days of completion
Who this is for
Landlord & Property Tax for St. Mark's
Residential and commercial landlords in St. Mark's: accidental landlords renting a former home, buy-to-let investors with one to several mortgaged properties, portfolio landlords, joint owners and couples, owners of furnished holiday lets and serviced accommodation, overseas landlords with UK rentals, and anyone who has let a property for years without declaring it and wants to put it right.
What is included
Everything inside the fixed fee
- Rental income and expenses for each property reconciled to agent statements and bank records
- Allowable expenses claimed in full: repairs, insurance, agent fees, ground rent, service charges, replacement of domestic items
- Mortgage interest handled correctly as a 20% tax credit, not a deduction, with the restriction carried forward where it cannot be used
- Joint ownership splits, Form 17 elections and the property allowance applied where they help
- Furnished holiday lets, serviced accommodation and rent-a-room treated under the rules now in force
- UK property pages of the Self Assessment completed and filed, with Making Tax Digital readiness assessed
How it works
Landlord & Property Tax from St. Mark's, step by step
Tell us your situation
A short message or call about what you do and what needs filing. We ask the questions that determine the right package and nothing more.
Fixed fee in writing
You receive one price for the work, confirmed by email before anything starts. It does not change if the job takes longer than we expected.
Send records, review the draft
Records come by WhatsApp or email. We prepare the draft, explain the figures in plain English and answer your questions.
We file, you get the receipts
Once you approve and the fee is settled, we submit electronically and forward the HMRC or Companies House acknowledgement the same day.
Why IGI
What you get in St. Mark's
One fixed fee for landlord & property tax in St. Mark's, agreed in writing before any work starts and never changed part-way through the job, however long it takes us.
Nothing for St. Mark's is left to the last week. Each deadline relevant to landlord & property tax is tracked from the day you join, with the next four shown on every page we send you.
No appointments, no travel across South West London, no parking. Everything for landlord & property tax in St. Mark's happens online, with a real person on the other end during UK working hours.
You get one contact for landlord & property tax, not a queue. St. Mark's clients message the same person throughout and get an answer in working hours, usually within a few hours.
We explain landlord & property tax in the words St. Mark's business owners use, not in accountant's shorthand, and we show our working so you can check it.
Nothing is filed for St. Mark's until you have reviewed and approved it. You see the draft, you ask questions, you sign off, then we submit and send you the receipt.
Local facts
About St. Mark's
St. Mark's is in South West London, within Kingston upon Thames, in the KT6 postcode district, England. Income tax in England follows the UK rates: 20% basic to £50,270, 40% higher to £125,140 and 45% additional, with the personal allowance of £12,570 tapered away above £100,000. National Insurance, VAT and Corporation Tax are UK-wide, and Stamp Duty Land Tax applies to property purchases.
| Place | Distance | Direction |
|---|---|---|
| Surbiton | 0.2 mi | SW |
| Seething Wells | 0.4 mi | SW |
| Berrylands | 0.7 mi | E |
| Kingston upon Thames | 1.0 mi | N |
| Surbiton Hill | 1.0 mi | E |
| Southborough | 1 mi | S |
| Ditton, Long | 1 mi | SW |
| Long Ditton | 1 mi | SW |
Worth knowing
Rules that come up in this work
Crypto records and reporting
HMRC treats cryptoassets as property. Swapping one token for another, spending crypto or gifting it are all disposals for Capital Gains Tax, and staking and lending rewards are income. Gains are computed under pooling rules with same-day and 30-day matching. From 2026 HMRC receives data from exchanges worldwide under the Cryptoasset Reporting Framework, so unreported activity is increasingly visible.
The 60-day property CGT return
Selling UK residential property that was not your main home for the whole period of ownership triggers a separate Capital Gains Tax return, due within 60 days of completion along with payment of the tax. This is in addition to the annual Self Assessment. The gain is taxed at 18% or 24% depending on your income band, after the £3,000 annual exempt amount.
Record keeping
HMRC requires records of all income and expenses, bank statements, invoices and receipts to be kept for at least five years after the 31 January filing deadline of the tax year they relate to, and companies must keep records for six years from the end of the accounting period. Digital copies are acceptable. Under Making Tax Digital the records must be kept in compatible software.
Allowable expenses
An expense is allowable against trading profit if it is incurred wholly and exclusively for the business. Materials, business travel other than ordinary commuting, a proportion of home running costs, software, insurance, professional fees, bank charges and protective clothing qualify. Client entertainment, ordinary clothing, fines and the private share of mixed-use costs do not.
Employer National Insurance
The cost of an employee is more than the salary. Employer National Insurance at 15% above £5,000 a year, the 3% minimum pension contribution, holiday pay, equipment and management time all come on top. The Employment Allowance of £10,500 reduces the National Insurance for most employers with more than one person on the payroll.
Workplace pensions and auto-enrolment
Workplace pension compliance is part of payroll, not separate from it. Each pay period the payroll assesses who is eligible, calculates employer and employee contributions on qualifying earnings between the lower and upper thresholds, and sends the contribution file to the scheme. The minimum total is 8%, and many employers choose to contribute more as a recruitment advantage.
Dormant companies
A dormant company is one with no significant accounting transactions in the year, where the only permitted entries are the payment for shares on incorporation, Companies House fees and penalties. It still files a confirmation statement and simplified dormant accounts every year. A bank charge or an accountant's fee paid from the company ends dormancy and requires full accounts.
Questions
Landlord & Property Tax questions from St. Mark's
Do I have to use Making Tax Digital?
From April 2026 if your combined property and self-employment income was over £50,000 in 2024/25, from April 2027 if over £30,000, and planned for April 2028 at £20,000. It means digital records and quarterly updates to HMRC. We assess your start date as part of the return and set up the bookkeeping when it applies.
What is the property allowance?
The first £1,000 of gross rental income each year is tax free, and if your rental income is under £1,000 you need not report it. Above £1,000 you can either deduct the allowance instead of expenses or claim actual expenses, whichever is better. It cannot be used with rent-a-room relief on the same income.
My partner and I own a property jointly. How is the income split?
Married couples and civil partners are taxed 50/50 by default regardless of actual ownership, unless you own in unequal shares and file Form 17 with evidence to be taxed on your actual shares. Unmarried joint owners are taxed on their actual shares. Choosing the right split can save tax where one of you is in a lower band.
What happened to furnished holiday lets?
The furnished holiday let regime ended on 5 April 2025. Holiday lets are now taxed like other residential lets: the finance-cost restriction applies, capital allowances on furniture are replaced by replacement relief, and the capital gains reliefs are withdrawn with transitional rules. Our £249 holiday let service handles the transition and the new treatment.
What expenses can I claim?
Letting agent fees, repairs and maintenance, buildings and contents insurance, ground rent and service charges, council tax and utilities you pay, accountancy, legal fees for lets of a year or less, replacing furniture and appliances, mileage to the property, and advertising. Improvements, your own labour and the capital part of mortgage payments are not allowable.
Is replacing a kitchen a repair or an improvement?
Replacing like with like, or with the modern equivalent, is a repair and deductible, even if the new kitchen is better quality because standards have risen. Adding something that was not there before, such as extending the kitchen or adding a dishwasher space, is an improvement and goes against the capital gain instead. We split mixed invoices.
Do you have an office in St. Mark's?
No. IGI Accounting is an online-only firm. We serve St. Mark's and every other UK postcode remotely, with records sent by WhatsApp or email and everything filed electronically. The absence of local premises is why the fee for landlord & property tax is the same in St. Mark's as anywhere else in the country, and why there is nothing to visit and nothing to print.
Is landlord & property tax in St. Mark's really the same price as elsewhere?
Yes. The fee published on this page is what a client in St. Mark's pays and what a client in any other part of England pays. It is confirmed in writing before work starts and the invoice matches the quote. Where a higher package applies because your situation is more complex, we say so at the quote stage, never afterwards.
Let us take the deadlines off your plate in St. Mark's
Tell us what you need. You get one fixed fee in writing, and nothing is filed until you approve it.