Accounting

Capital Gains Tax · Central London

Capital gains tax returns in Mayfair

Selling a rental property in Mayfair starts a 60-day clock to report the gain and pay the tax, separately from your annual return. We calculate the gain with every allowable cost and relief, file the return through HMRC's service and tell you exactly what to pay. Shares, funds and business assets are handled the same way, for a fixed fee.

from £149 · fixed, per report

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

Capital Gains Tax for Mayfair

Individuals and trustees in Mayfair disposing of assets: landlords selling a rental or a former home, investors selling shares or funds outside an ISA, employees exercising options or selling scheme shares, business owners selling a company or its assets, people gifting assets to family, and executors dealing with disposals during an estate administration.

What is included

Everything inside the fixed fee

  • Gain computed for each disposal with acquisition cost, enhancement expenditure and incidental costs allowed in full
  • 60-day UK residential property return filed through HMRC's online service with the tax paid on account
  • Private residence relief, lettings relief and periods of absence calculated for homes that were once let or vacant
  • Share and fund disposals matched under the same-day, 30-day and section 104 pooling rules
  • Business asset disposal relief, investors' relief, gift relief and rollover relief claimed where available
  • Losses identified and claimed, annual exempt amount and rate bands applied, Self Assessment pages completed

How it works

Capital Gains Tax from Mayfair, step by step

  1. Scope the job

    We find out what you need filed, when it is due and what state the records are in, and tell you which fixed-fee package applies.

  2. Agree the price

    The fee is confirmed in writing. There is no hourly billing and nothing added for questions during the work.

  3. Hand over the records

    Photographs, PDFs, software access or a spreadsheet, sent however suits you. We confirm what we have and what is missing within two working days.

  4. Approve, then we submit

    You review the draft with our explanation, sign off, and we file. Receipts, copies and the next deadlines come back to you immediately.

Why IGI

What you get in Mayfair

The price for capital gains tax is published on this page and is what a client in Mayfair pays. We confirm it in writing first, and the invoice matches the quote.

Nothing for Mayfair is left to the last week. Each deadline relevant to capital gains tax is tracked from the day you join, with the next four shown on every page we send you.

No appointments, no travel across Central London, no parking. Everything for capital gains tax in Mayfair happens online, with a real person on the other end during UK working hours.

A named person handles your capital gains tax from Mayfair and knows the file, so you are not re-explaining your business to a different helpdesk each time.

Plain English, with the numbers. Every draft for Mayfair comes with a short explanation of what the figures mean and what, if anything, you should do about them.

Approval before filing is a rule, not a courtesy. For capital gains tax in Mayfair, every submission to HMRC or Companies House follows your written go-ahead.

Local facts

About Mayfair

Mayfair is in Central London, within Westminster, in the W1K postcode district, England. For businesses in England the tax rules are those set by the UK Parliament: the 20/40/45% income tax bands, Class 4 National Insurance for the self-employed at 6% and 2%, Corporation Tax at 19% to 25%, and Stamp Duty Land Tax on property. Business rates are set locally by the council.

Nearby places we also serve for capital gains tax
PlaceDistanceDirection
West End of London0.4 miNW
Oxford Circus0.4 miNE
St James's0.5 miSE
Piccadilly, Westminster0.5 miE
Marble Arch0.5 miW
Soho, Westminster0.6 miE
Marylebone High Street0.6 miN
Marylebone, Westminster0.6 miN

Worth knowing

Rules that come up in this work

Payments on account

If your Self Assessment bill exceeds £1,000 and less than 80% of your tax was collected at source, HMRC asks for two advance payments towards the following year, each half of the current bill, due 31 January and 31 July. The first year this happens the January payment is effectively one and a half times the bill. We model it in advance and show you how to reduce the payments if income is falling.

The Self Assessment calendar

Self Assessment runs on a fixed annual cycle. Registration by 5 October following the tax year, online filing and payment by 31 January, and a second instalment on 31 July for those making payments on account. The penalties for lateness are automatic and escalate monthly, which is why we file early and chase approvals well before the window closes.

Making Tax Digital for Income Tax

MTD for Income Tax replaces one annual return with quarterly digital updates and a year-end declaration, submitted from software. The threshold is gross trading and property income, measured two years earlier, and started at £50,000 in April 2026 before falling to £30,000 in April 2027. Anyone affected needs digital record keeping in place before their start date, not after.

Late filing penalties

Lateness is expensive in a way that compounds. For individuals, £100 immediately, then daily penalties, then percentage-based ones at six and twelve months, with interest running on unpaid tax throughout. For companies, Companies House penalties scale with delay and double on repeat, and HMRC adds its own for a late CT600. Filing on time is the cheapest tax planning there is.

Corporation Tax rates and marginal relief

Corporation Tax is not a flat rate. Profits to £50,000 pay 19%, profits above £250,000 pay 25%, and the band between is taxed at an effective marginal rate of 26.5% through the marginal relief mechanism. Associated companies share the thresholds, which catches directors who own more than one company and is the most common cause of underpaid tax in owner-managed groups.

The VAT registration threshold

The £90,000 VAT threshold is measured over any twelve consecutive months, which is why a strong quarter can tip a business over unexpectedly. Registration must follow within thirty days of the end of the month the threshold was crossed. Below the threshold, voluntary registration is worth considering when customers are VAT-registered businesses and costs carry VAT.

Director's loan accounts

Money taken from a company has to be something: salary, dividend, expense reimbursement or loan. If it is a loan and remains outstanding nine months after the year end, the company pays tax at the dividend higher rate on it until it is repaid. Clearing the balance with a properly declared dividend before the deadline, where reserves allow, is routine year-end work.

Questions

Capital Gains Tax questions from Mayfair

I gave a property to my child. Is there tax?

Yes. Gifts to anyone other than your spouse or civil partner are disposals at market value, and the gain is taxable even though no money changed hands. The 60-day return applies to residential property. Gift relief can defer gains on business assets, but not on investment property. We value, compute and report the gift.

What is business asset disposal relief?

Formerly entrepreneurs' relief: a reduced rate on gains from selling all or part of a trading business, or shares in a trading company where you held at least 5% and were an officer or employee for two years. The lifetime limit is £1 million. The rate rose to 14% in April 2025 and to 18% from April 2026. Our £299 service prepares and supports the claim.

Can I use losses from previous years?

Yes, if they were claimed on a return within four years of the tax year in which they arose. Current-year losses are set against current-year gains first, even if that wastes the annual exemption; brought-forward losses are only used to the extent needed to bring gains down to the exemption. We check for unclaimed historical losses as standard.

How do you work out gains on shares bought at different times?

Disposals are matched first to shares bought the same day, then to shares bought in the following 30 days, then to the section 104 pool, which holds all other shares of that class at their average cost. The same rules apply to funds and to crypto. We run the matching across your full history.

What costs can I deduct from the gain?

The purchase price, stamp duty and legal fees on purchase, capital improvements that are still reflected in the asset at sale (extensions, new kitchens, not repairs), and selling costs including agent and legal fees. For shares, dealing costs and stamp duty. For inherited assets, the probate value is the cost.

I sold my former home that I later let out. Is it all taxable?

No. Private residence relief exempts the gain for the period you lived there plus the final nine months of ownership, and certain periods of absence can qualify. The let period is taxable. Lettings relief now applies only where you shared occupation with the tenant. We apportion the gain by days and claim every qualifying period.

How do I get started from Mayfair?

Message us on WhatsApp or email with a sentence about your business and what you need. We reply in working hours with any questions and a fixed fee for capital gains tax. Once you confirm, we tell you exactly which records to send and the work begins. Most Mayfair clients are set up within a day.

Which deadlines matter most for capital gains tax?

The next four dates that apply to capital gains tax are shown at the top of this page, calculated from today. For Mayfair clients we diarise every one of them from the day you join and send reminders before each, so the work is done in good time rather than in the last week before a penalty.

Get a fixed quote for Mayfair today

Tell us what you need. You get one fixed fee in writing, and nothing is filed until you approve it.

WhatsApp for a fixed quote