Capital Gains Tax Services Companies in the UK: Companies and Services Guide

Dealing with capital gains tax rarely feels straightforward. It tends to show up at moments that already carry weight – selling a property, exiting a business, restructuring investments. And suddenly, small details start to matter more than expected.

Across the UK, there’s no shortage of firms offering capital gains tax support, but they don’t all approach it in the same way. Some lean heavily into technical tax planning, others focus more on compliance and reporting, and a few sit somewhere in between, working closely with individuals, investors, or business owners depending on the situation.

This guide brings together a selection of capital gains tax services companies operating in the UK. It is not about ranking providers or pointing to a single “best” option. The idea is simpler – to give a clearer sense of who these firms are, how they tend to work, and where they might fit depending on the kind of tax decisions you are dealing with.

Acumon

Acumon is a UK-based firm of chartered accountants, auditors, and advisors providing a broad range of tax and accounting services to businesses and individuals. Within its tax offering, the firm supports clients with capital gains tax matters alongside wider personal and corporate tax planning, helping them manage both compliance and longer-term tax positioning.

The firm works with a mix of owner-managed businesses, private individuals, and international clients, often in situations where capital gains tax arises as part of a larger financial decision – such as the sale of shares, disposal of property, or restructuring of business interests. Rather than treating capital gains tax as a standalone calculation, Acumon typically approaches it as part of a broader tax framework, looking at timing, reliefs, and how gains interact with other tax exposures.

Many of the firm’s tax professionals have prior experience with HMRC, which tends to shape how they interpret compliance requirements and manage reporting. This can be particularly relevant in capital gains tax cases where documentation, valuations, or reporting accuracy may come under scrutiny.

Capital Gains Tax Support:

Acumon provides support across a range of capital gains tax scenarios, often linked to both personal and business transactions.

These include:

• disposal of residential and commercial property
• sale of shares and business interests
• capital gains reporting and compliance
• use of available reliefs and exemptions
• tax planning ahead of asset disposals
• support with HMRC queries or reviews

Capital gains tax work is often handled alongside broader tax advisory, especially where transactions have implications for income tax or corporate tax positions.

Core Services: 

Capital gains tax advice is typically delivered as part of Acumon’s wider tax and advisory work.

This includes:

• capital gains tax
• personal tax planning and advisory
• corporation tax advice and compliance
• tax return preparation and filing
• business valuations and transaction support
• succession planning and structuring
• estate and probate-related tax planning

In practice, this allows the firm to support clients before, during, and after a transaction, rather than stepping in only at the reporting stage.

Working with Growing and Changing Structures:

Capital gains tax questions often arise when businesses or individuals go through periods of change. Acumon works with clients who are:

• preparing for a business sale or partial exit
• restructuring ownership or shareholding
• managing investment portfolios or property assets
• planning intergenerational transfers of wealth
• expanding into or operating across multiple jurisdictions

Early planning tends to play a role here, especially where reliefs or structuring decisions need to be considered before a transaction takes place.

Contact Information:

• Website: acumon.com
• Phone: 020 8567 3451
• E-mail: mail@acumon.com
• Address: 1-2 Craven Road, Ealing, London, W5 2UA, UK

Perrys Chartered Accountants

Perrys Chartered Accountants is a UK firm providing tax and accounting support, including dedicated capital gains tax services for both individuals and businesses. Their work in this area is centred around asset disposals, where tax implications are not always obvious at first glance. They tend to guide clients through what is actually chargeable, how gains are calculated, and what needs to be reported, especially where different types of assets are involved.

They work across common capital gains scenarios such as property sales, share disposals, and business asset transactions. A noticeable part of their approach is helping clients understand reliefs and allowances in practical terms, rather than just applying them at the end. This becomes relevant in situations where timing, ownership structure, or prior use of an asset can affect the final tax outcome. Their involvement often continues through to reporting, particularly where deadlines and compliance requirements need careful handling.

Key Highlights:

• Focus on capital gains tax across different asset disposals
• Works with individuals and businesses on tax related matters
• Experience with property shares and business asset transactions
• Helps identify and apply available capital gains tax reliefs
• Supports accurate reporting and compliance with HMRC requirements

Services:

• capital gains advisory
• gains calculation
• relief identification
• tax reporting

Contact information:

• Website: perrysaccountants.co.uk
• Phone: 0808 3030 401
• Address: 4th Floor, 399-401 Strand, London, WC2R 0LT
• Facebook: www.facebook.com/perryscharteredaccountants
• Twitter: x.com/PerrysAccs
• LinkedIn: www.linkedin.com/company/perrys

Butt Miller

Butt Miller is a UK chartered accountancy firm that includes capital gains tax advisory as part of its tax services. Their work in this area often connects to real-life financial events such as selling a second home, disposing of investments, or restructuring business ownership. They tend to approach capital gains tax by looking at the full financial picture, rather than focusing only on the gain itself.

They support both individuals and business owners, particularly where transactions involve multiple variables like income levels, ownership structure, or timing of disposal. In practice, this means helping clients understand how reliefs, allowances, and losses can be used, as well as handling the reporting side through self-assessment. Their work also extends to more specific situations, such as inherited assets, overseas property, or business disposals, where tax treatment can vary.

Key Highlights:

• Supports individuals and businesses with capital gains tax matters
• Experience with property investment and business asset disposals
• Helps apply reliefs exemptions and available tax allowances correctly
• Assists with reporting through self assessment and HMRC processes
• Works with complex situations including inheritance and overseas assets

Services:

• capital gains planning
• gains calculation
• loss utilisation
• self assessment

Contact information:

• Website: buttmiller.co.uk
• Phone: 01276 543221 
• E-mail: biggerpicture@buttmiller.co.uk
• Address: 1 Minster Court, Tuscam Way, Camberley, Surrey, GU15 3YY
• Facebook: www.facebook.com/buttmillerltd
• Twitter: x.com/Butt_Miller
• LinkedIn: www.linkedin.com/company/butt-miller-limited

Azets

Azets is a large advisory and accounting group providing tax services across the UK, including capital gains tax support as part of its broader tax offering. Their work typically sits within wider tax planning, where capital gains tax is considered alongside income tax, inheritance tax, and corporate tax. This tends to be relevant for clients whose financial decisions have multiple tax implications rather than a single isolated event.

They work with a wide range of clients, from individuals and families to businesses and larger organisations. In capital gains tax cases, their role often involves helping clients understand how different transactions such as asset sales or restructuring fit into their overall tax position. Their approach usually combines compliance with forward planning, especially where changing regulations or long term financial decisions are involved.

Key Highlights:

• Capital gains tax handled as part of broader tax planning
• Works with individuals families and businesses across various sectors
• Focus on reliefs exemptions and tax efficient structuring
• Supports clients in complex and changing tax environments
• Combines compliance work with longer term tax planning strategies

Services:

• capital gains advisory
• tax planning
• relief guidance
• compliance support

Contact information:

• Website: www.azets.com
• Phone: +44 (0) 20 7403 1877
• Address: 2nd Floor, Regis House, 45 King William Street, EC4R 9AN
• LinkedIn: www.linkedin.com/company/azets
• Instagram: www.instagram.com/azets_uk

Progeny

Progeny provides tax and legal support with a focus on capital gains tax planning, usually as part of a wider financial and legal structure. Their work tends to come into play before a transaction happens, especially when clients are considering selling shares, property, or other capital assets. Rather than dealing with tax after the fact, they often look at how ownership, timing, and structure can influence the final outcome.

They work across different areas at the same time, bringing together tax, legal, and wealth planning. This shows up in situations like share disposals, where tax planning may involve trusts, family ownership structures, or changes to legal arrangements before a sale. The same applies to property and investment portfolios, where decisions made ahead of disposal can affect how much of the gain is actually taxed.

Key Highlights:

• Focus on capital gains tax planning before asset disposals
• Combines tax legal and financial planning across transactions
• Works with shares property and investment portfolio disposals
• Supports use of reliefs exemptions and ownership structuring decisions
• Involvement in pre sale planning including trusts and ownership changes

Services:

• capital gains planning
• relief optimisation
• disposal structuring
• pre sale advice

Contact information:

• Website: theprogenygroup.com
• Phone: +44 11 3519 4549
• Address: 1A Tower Square, Leeds, LS1 4DL
• Facebook: www.facebook.com/theprogenygroup
• Twitter: x.com/theprogenygroup
• LinkedIn: www.linkedin.com/company/theprogenygroup
• Instagram: www.instagram.com/theprogenygroup

Darnells

Darnells is a UK accountancy firm that provides capital gains tax support mainly around calculations, reporting, and compliance. Their work is often practical and process driven, helping clients deal with the technical side of capital gains tax when assets are sold. This includes making sure gains are calculated correctly and reported within the required deadlines.

They work with both individuals and businesses, particularly in cases involving property, shares, or business assets. A key part of their role is handling the reporting side, including tax returns and communication with HMRC if needed. In some cases, this extends to dealing with enquiries or disputes, where accurate records and clear calculations become important.

Key Highlights:

• Focus on accurate capital gains tax calculations and reporting
• Works with property shares and business asset disposals
• Supports compliance with HMRC rules and filing requirements
• Handles reporting deadlines and preparation of tax returns
• Assists with HMRC enquiries and dispute related situations

Services:

• gains calculation
• tax reporting
• relief claims
• HMRC support

Contact information:

• Website: www.darnells.co.uk
• Phone: 01626 358500
• Email: info@darnells.co.uk
• Address: Quay House, Quay Road, Newton Abbot, Devon, TQ12 2BU
• Facebook: www.facebook.com/darnellsaccountants
• Twitter: x.com/darnellsaccount
• LinkedIn: www.linkedin.com/company/darnells
• Instagram: www.instagram.com/darnellsaccount

David Howard

David Howard provides capital gains tax advice with a focus on planning around asset disposals. Their work often starts before a transaction takes place, looking at how timing, ownership, and available reliefs can affect the overall tax position. This is usually relevant for property owners, investors, and business owners dealing with changes in asset ownership.

They tend to approach capital gains tax as something that needs coordination rather than a one step calculation. This includes planning disposals, using allowances, and managing more complex cases such as inherited or gifted assets. Reporting and compliance are also part of the process, particularly where deadlines and correct valuation need attention.

Key Highlights:

• Focus on planning asset disposals to manage capital gains tax
• Works with property investors business owners and individuals
• Helps apply reliefs exemptions and available tax allowances
• Supports planning for inherited gifted and transferred assets
• Involvement in reporting deadlines and compliance requirements

Services:

• disposal planning
• relief application
• gains calculation
• tax reporting

Contact information:

• Website: www.davidhoward.co.uk
• Phone: 01403 907106
• E-mail: enquiries@davidhoward.co.uk
• Address: 5 The Square, Bagshot, GU19 5AX
• LinkedIn: www.linkedin.com/company/david-howard-chartered-accountants

THP Accountants

THP provides capital gains tax support with a strong focus on property-related reporting, particularly where deadlines are tight. Their work often comes into play after a property sale has completed, when there is limited time to calculate, report, and pay the tax. In these situations, accuracy and timing tend to matter just as much as the calculation itself.

They work mainly with residential property disposals that fall outside main residence relief, helping clients pull together the required details and submit the correct returns. Alongside reporting, they also look at whether any reliefs or adjustments apply, especially if there is still time to plan ahead. Their approach is quite practical – dealing with the immediate compliance first, then addressing any opportunities to adjust the final tax position where possible.

Key Highlights:

• Focus on capital gains tax reporting for UK property disposals
• Works with strict HMRC deadlines after residential property sales
• Supports calculation reporting and submission within limited timeframes
• Experience with property tax rules reliefs and ownership structures
• Combines fast reporting with practical capital gains tax advice

Services:

• capital gains tax reporting
• UK property gain calculations
• 60 day return submissions
• capital gains tax planning

Contact information:

• Website: www.thp.co.uk
• Phone: 0800 6520 025
• Facebook: www.facebook.com/thplimited
• LinkedIn: www.linkedin.com/company/thp-limited

Swift Accountants

Swift Accountants provides capital gains tax advice with a focus on keeping things organised and clear, especially for individuals dealing with different types of asset disposals. Their work often involves bringing structure to what can feel like a messy process – gathering records, checking costs, and making sure everything is reported correctly.

They work across a range of capital gains situations, including property, shares, and other investments. A noticeable part of their approach is helping clients understand what can actually be claimed or deducted, and how losses and allowances fit into the overall picture. They also stay involved through reporting, making sure deadlines are met and communication with HMRC is handled where needed.

Key Highlights:

• Focus on clear and structured capital gains tax advice
• Works with property shares and investment related disposals
• Helps organise records costs and supporting documentation
• Supports use of losses allowances and available tax reliefs
• Handles reporting deadlines and HMRC communication where required

Services:

• capital gains tax calculations
• relief and allowance checks
• capital gains tax reporting
• HMRC correspondence support

Contact information:

• Website: www.swift-accountants.co.uk
• Phone: 01244 730 300 
• Address: 3 Chowley Court, Chowley Oak Tattenhall, CH3 9GA
• Facebook: www.facebook.com/THE.SWIFT.TAX.GROUP
• LinkedIn: www.linkedin.com/company/swift-accountants-cheshire
• Instagram: www.instagram.com/swift__accountants

DNS Tax

DNS Tax is a UK tax advisory firm that provides capital gains tax planning as part of its wider tax support. Their work usually starts before or during a transaction, helping clients understand how gains will be calculated and what steps are needed to stay compliant. This is often relevant for property owners, landlords, and individuals managing investment assets.

They guide clients through the full process, from gathering financial data to preparing and submitting tax returns. A key part of their work is making sure that all relevant costs, exemptions, and reliefs are considered when calculating gains. Their involvement tends to continue through filing, with ongoing communication to ensure everything is completed correctly and on time.

Key Highlights:

• Focus on capital gains tax planning across different asset disposals
• Works with landlords investors and individuals managing assets
• Supports full process from data collection to tax filing
• Helps apply exemptions reliefs and allowable cost deductions
• Provides ongoing guidance throughout reporting and submission stages

Services:

• capital gains tax planning
• capital gains calculations
• capital gains tax returns
• HMRC filing support

Contact information:

• Website: www.dnstax.co.uk
• Phone: 0333 2422 572
• E-mail: dnstax@dnsaccountants.co.uk
• Address: 2nd Floor, St Anns Building, 1-9 St Anns Rd, Harrow HA1 1LQ

Rogers Spencer

Rogers Spencer is a UK accountancy firm that provides capital gains tax support as part of its private client tax services. Their work in this area is usually tied to individuals and investors dealing with asset disposals, where understanding what is taxable and what can be reduced through reliefs becomes important. They tend to focus on reviewing each case in detail, looking at the type of asset, ownership structure, and any exemptions that may apply.

They work across a range of capital gains scenarios, including property, shares, and personal assets. A noticeable part of their approach is helping clients make sense of reliefs and allowances that are often overlooked or misunderstood. Their involvement is not just about calculating the gain, but also about checking whether the tax position can be adjusted based on how the asset was used or held over time.

Key Highlights:

• Focus on capital gains tax for individuals and investors
• Works with property shares and personal asset disposals
• Reviews eligibility for reliefs exemptions and tax allowances
• Helps assess ownership structure and asset usage history
• Supports planning to reduce capital gains tax exposure

Services:

• capital gains tax advice
• capital gains tax calculations
• relief and exemption reviews

Contact information:

• Website: www.rogers-spencer.co.uk
• Phone: 0115 960 8412
• E-mail: advice@rogers-spencer.co.uk
• Address: Newstead House, Pelham Road, Nottingham, NG5 1AP
• Facebook: www.facebook.com/RogersSpencer1871
• Twitter: x.com/rs_accountants
• LinkedIn: www.linkedin.com/company/rogers-spencer
• Instagram: www.instagram.com/rogersspencerltd

Bryars & Co

Bryars & Co is a UK chartered accountancy firm that provides tax support for both individuals and businesses, including capital gains tax as part of its broader tax services. Their work in this area is often linked to routine tax reporting, where capital gains are calculated alongside other tax obligations rather than treated separately.

They support clients with calculating gains and losses, particularly where assets such as property or shares are involved. In practice, their approach tends to balance tax efficiency with practical decision making, rather than focusing only on reducing tax. They also work with more specific situations such as share valuations or cross-border tax matters, where capital gains tax interacts with other rules.

Key Highlights:

• Capital gains tax handled within broader personal and business tax
• Works with individuals partnerships and small business clients
• Experience with property shares and cross border tax matters
• Focus on balancing tax planning with practical financial decisions
• Supports calculation of gains losses and related tax liabilities

Services:

• capital gains tax calculations
• capital gains tax advice
• share valuation support
• capital gains tax reporting

Contact information:

• Website: www.mbryars.com
• Phone: 01264 513 040
• E-mail: martin@mbryars.com
• Address: Cloverfield, Houghton Down, Stockbridge, Hampshire, SO20 6JR, UK

Blevins Franks

Blevins Franks provides tax advice with a focus on capital gains tax for individuals with cross-border financial situations. Their work often involves clients who live abroad or are planning to move, where capital gains tax can apply in more than one country depending on residency and asset location.

They tend to look at timing and location of asset disposals, especially for property and investments. This becomes relevant when clients may be subject to tax in both the UK and another country, and planning is needed to avoid unnecessary overlap. Their approach usually involves reviewing how different tax systems interact, including the role of double tax treaties and changes in residency.

Key Highlights:

• Focus on capital gains tax for cross border situations
• Works with expatriates and internationally mobile individuals
• Considers tax implications across multiple jurisdictions and systems
• Supports planning around residency and timing of asset disposals
• Experience with property and investment related capital gains

Services:

• cross border capital gains advice
• capital gains tax planning
• property disposal planning
• double tax treaty guidance
• residency based tax planning

Contact information:

• Website: www.blevinsfranks.com
• Phone: +44 (0)20 7389 8133
• E-mail: enquiries@blevinsfranks.com
• Address: Blevins Franks, 28 St James’s Square, London SW1Y 4JH
• Facebook: www.facebook.com/BlevinsFranks
• Twitter: x.com/BlevinsFranks
• LinkedIn: www.linkedin.com/company/blevins-franks
• Instagram: www.instagram.com/blevins_franks

Whitings LLP

Whitings LLP is a UK accountancy firm with a focus on capital gains tax planning, particularly for individuals dealing with shares and property disposals. Their work often centres on reviewing a client’s overall position before or around the time of a transaction, rather than treating the gain as a one-off calculation. They tend to look closely at how assets are owned, when they are sold, and which reliefs or elections might apply.

They work across a range of planning techniques, including the use of losses, timing of disposals, and restructuring ownership between individuals or through trusts. In some cases, this involves more detailed decisions such as spreading gains across tax years or reinvesting proceeds to defer tax. Alongside planning, they also handle reporting and communication with HMRC, which becomes relevant when gains need to be formally agreed and filed.

Key Highlights:

• Focus on capital gains tax planning for shares and property
• Works with individuals reviewing ownership timing and asset structure
• Experience with reliefs elections and loss utilisation strategies
• Supports planning across tax years and deferred gain options
• Handles reporting and communication with HMRC where required

Services:

• capital gains tax planning
• relief and exemption claims
• asset ownership restructuring
• capital gains tax reporting
• HMRC liaison support

Contact information:

• Website: whitingsllp.co.uk
• Phone: (01284) 752313
• Address: Greenwood House, Greenwood Court, Skyliner Way, Bury St. Edmunds, Suffolk, IP32 7GY
• Facebook: www.facebook.com/whitingsllp
• Twitter: x.com/whitingsllp
• LinkedIn: www.linkedin.com/company/whitingsllp

Kelly Molyneux & Co

Kelly Molyneux & Co provides tax advice that includes capital gains tax as part of its wider personal and business tax work. Their approach is often centred around explaining how gains are calculated and where reliefs may apply, particularly in cases involving business disposals or share transactions. Rather than focusing only on the end result, they tend to guide clients through the rules that shape how gains are taxed.

They work with individuals and business owners who need to understand how different reliefs interact with their situation. This includes areas such as business asset disposal relief and investor-related reliefs, where conditions and timing can affect eligibility. Their role is usually to help clients make informed decisions before a disposal takes place, especially where planning can influence the final tax outcome.

Key Highlights:

• Capital gains tax handled within broader tax advisory work
• Works with individuals and business owners on asset disposals
• Experience with business asset disposal and investor reliefs
• Helps interpret tax rules and relief conditions clearly
• Supports planning decisions before disposal of assets

Services:

• capital gains tax advice
• business disposal planning
• relief eligibility reviews
• capital gains tax calculations

Contact information:

• Website: www.kellymolyneux.co.uk
• Phone: 01782 814360
• E-mail: info@kellymolyneux.co.uk
• Address: Mitre House, Pitt Street West, Burslem, Stoke-on-Trent, Staffordshire ST6 3JW
• Facebook: www.facebook.com/kellymolyneuxandco
• Instagram: www.instagram.com/kmaccountants

Alexander & Co

Alexander & Co provides capital gains tax advice for individuals, investors, and business owners, often in situations where asset disposals form part of a wider financial decision. Their work usually involves looking at how gains are calculated and how different reliefs, allowances, and costs interact with each other. This becomes relevant when dealing with property, shares, or business assets.

They support clients both before and after a disposal, helping structure transactions and then handling reporting and compliance. In more complex cases, this can include planning around business sales, transfers between family members, or cross-border assets. Their approach tends to combine calculation, planning, and ongoing support, especially where multiple factors affect the final tax position.

Key Highlights:

• Focus on capital gains tax for property shares and business assets
• Works with individuals investors and business owners
• Helps structure disposals and apply relevant reliefs correctly
• Supports planning for business sales and ownership transfers
• Handles reporting compliance and HMRC related matters

Services:

• capital gains tax planning
• disposal structuring advice
• relief and allowance reviews
• capital gains tax reporting
• HMRC enquiry support

Contact information:

• Website: alexander.co.uk
• E-mail: info@alexander.co.uk
• Address: The Harley Building, 77 New Cavendish Street, London W1W 6XB
• Twitter: x.com/alexandercoMCR
• LinkedIn: www.linkedin.com/company/alexander-&-co-chartered-accountants

Conclusion

Choosing a capital gains tax provider in the UK is rarely just about finding someone to “do the calculation.” Most organisations and individuals end up looking for something a bit more specific – clarity around what actually applies to their situation, a sense of timing, and someone who can spot things that are easy to miss when you are focused on the transaction itself.

In practice, the choice often depends on the context. A property disposal under tight reporting deadlines calls for a different type of support than a business exit or a more complex restructuring. Some firms lean towards fast compliance and reporting, others focus more on planning ahead, and some sit in between. That difference matters, especially when small decisions around reliefs, ownership, or timing can shift the final tax position more than expected.

That is really where a guide like this becomes useful. It is not about ranking firms or pointing to a single “right” option. It gives a clearer picture of how different providers approach capital gains tax, what they tend to focus on, and where they might fit depending on the situation. When you can see those differences side by side, it becomes easier to narrow things down without second guessing every detail.

At the end of the day, most people are not just choosing a service – they are choosing how much confidence they want to have in a decision that can carry financial weight. Having the right context upfront makes that choice a bit more straightforward, or at least less uncertain than it usually feels at the start.