Doug Sinclair
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Doug Sinclair Email & Phone Number

Tax Partner (Tax Disputes & Resolutions) at Brebners at Brebners
Location: London, England, United Kingdom 10 work roles 2 schools
1 work email found @crowecw.co.uk LinkedIn matched
✓ Verified August 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email

Work email d****@crowecw.co.uk
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Current company
Role
Tax Partner (Tax Disputes & Resolutions) at Brebners
Location
London, England, United Kingdom
Company size

Who is Doug Sinclair? Overview

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Quick answer

Doug Sinclair is listed as Tax Partner (Tax Disputes & Resolutions) at Brebners at Brebners, a with 79 employees, based in London, England, United Kingdom. AeroLeads shows a work email signal at crowecw.co.uk and a matched LinkedIn profile for Doug Sinclair.

Doug Sinclair previously worked as Tax Partner (Tax Disputes & Resolutions) at Brebners and Guest writer at Family Office Magazine. Doug Sinclair studied at St Dunstan'S College.

Company email context

Email format at Brebners

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{first}.{last}@crowecw.co.uk
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AeroLeads found 1 current-domain work email signal for Doug Sinclair. Compare company email patterns before reaching out.

Profile bio

About Doug Sinclair

Former Inspector of Taxes with over 37 years tax experience, either through investigating individuals and businesses whilst in HM Revenue & Customs or helping clients when in the profession.Currently Partner and Head of Tax Investigations at Brebners. I assist individuals and businesses who are either the subject of an investigation by HM Revenue & Customs or who wish to make a disclosure to the tax authorities.Current and past client portfolio includes individuals in the hotel & leisure sector (member of HOSPA tax committee), construction industry & sporting field.Member of ICAEW Tax Investigations Practitioners Group.Specialties: Tax Investigations, S9a enquiries, Code of Practice 9 (COP9) Investigations - Contractual Disclosure Facility (CDF), Code of Practice 8 Investigations, Voluntary Disclosures, New Disclosure Opportunity, Liechtenstein Disclosure Facility (LDF), Construction Industry Scheme (CIS), Tax Risk Management, UK & Switzerland tax deal.

Listed skills include Tax, Income Tax, Tax Advisory, Accounting, and 14 others.

Current workplace

Doug Sinclair's current company

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Brebners
Brebners
Tax Partner (Tax Disputes & Resolutions) at Brebners
london, greater london, united kingdom
Website
Employees
79
AeroLeads page
10 roles

Doug Sinclair work experience

A career timeline built from the work history available for this profile.

Tax Partner (Tax Disputes & Resolutions)

Current

London, United Kingdom

I specialise in helping clients who are either under a complex tax investigation by HMRC or who wish to make a voluntary disclosure to regularise their tax affairs. I am focussed in my approach with HMRC and have significant experience in resolving COP9 investigations.

Sep 2019 - Present

Specialist Tax Advisor Member

Proud to have been accepted as a member of this prestigious and long-standing network of independent tax advisers. The website www.taxadvicenetwork.co.uk is highly ranked and used by thousands of visitors each month to source specialist tax advisers across a wide range of tax issues and topics.

Jul 2020 - Jun 2024

Partner And Head Of Tax Investigations

London

To assist clients who are either under investigation by HM Revenue & Customs, or who wish to make a voluntary disclosure of their affairs to the tax authorities.

Apr 2015 - Jul 2019

Head Of Tax Investigations

To assist clients who are either under investigation by HM Revenue & Customs, or who wish to make a voluntary disclosure of their affairs to the tax authorities.

Apr 2012 - Mar 2015

Director Of Tax Investigations

I previously assisted a number of clients with disclosures to HMRC involving the Liechtenstein Disclosure Facility (LDF). I also assisted several clients who were either the subject of a COP8 or COP9 Investigation.

Oct 2010 - Mar 2012

Senior Manager

Crowe Clark Whitehill

As from 1 October, Horwath Clark Whitehill will be known as Crowe Clark Whitehill.

May 2008 - Sep 2010

Tax Manager

Tax Investigations Manager

Jan 2003 - Apr 2008

Tax Senior

Pkf
Feb 2001 - Dec 2002
Team & coworkers

Colleagues at Brebners

Other employees you can reach at brebners.com. View company contacts for 79 employees →

2 education records

Doug Sinclair education

Education record

St Dunstan'S College

Education record

Davies College
FAQ

Frequently asked questions about Doug Sinclair

Quick answers generated from the profile data available on this page.

What company does Doug Sinclair work for?

Doug Sinclair works for Brebners.

What is Doug Sinclair's role at Brebners?

Doug Sinclair is listed as Tax Partner (Tax Disputes & Resolutions) at Brebners at Brebners.

What is Doug Sinclair's email address?

AeroLeads has found 1 work email signal at @crowecw.co.uk for Doug Sinclair at Brebners.

Where is Doug Sinclair based?

Doug Sinclair is based in London, England, United Kingdom while working with Brebners.

What companies has Doug Sinclair worked for?

Doug Sinclair has worked for Brebners, Family Office Magazine, Tax Advice Network, Bkl Llp, and Berg Kaprow Lewis Llp.

Who are Doug Sinclair's colleagues at Brebners?

Doug Sinclair's colleagues at Brebners include Jocelyn Frazer-O'Rourke, Stephen Rix, Moksad Rahman, Tom Stork, and David Ogunyemi.

How can I contact Doug Sinclair?

You can use AeroLeads to view verified contact signals for Doug Sinclair at Brebners, including work email, phone, and LinkedIn data when available.

What schools did Doug Sinclair attend?

Doug Sinclair studied at St Dunstan'S College.

What skills is Doug Sinclair known for?

Doug Sinclair is listed with skills including Tax, Income Tax, Tax Advisory, Accounting, Tax Investigations, Vat, Risk Management, and Corporate Tax.

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