
Specialist US & UK Tax Advisors
Qualified US and UK Tax Advice
Handling all aspects of your transatlantic taxes, including preparation of your tax filings and tax planning, disclosures, briefings and more.
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Explore the range of international tax services below and, if you are interested in having a conversation, get in touch via phone or email.

SERVICES
UK Tax Services
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Self-Assessment tax return preparation and e-filing
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Residence and domicile advice/planning
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Remittance planning and mixed fund analysis
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Overseas workday relief claims
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Tax equalisation
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Assistance with HMRC enquiries
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Voluntary disclosure submissions
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Tax cashflow projections
US Tax Services
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US Federal and State tax compliance
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Delinquent filer assistance
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Tax residence advice and pre-arrival planning
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Expatriation compliance and planning
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Foreign tax credit optimisation
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Foreign Bank Account Reporting (FBAR) and informational reporting for foreign financial assets
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Reporting for trusts, partnership interests and corporate entities
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PFIC analysis and reporting
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Retirement/pensions planning
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Certifying Acceptance Agent (CAA) services for US ITIN applications


Mike Tien
Chartered Tax Advisor
Enrolled Agent

Chris Beauchamp
Association of Tax Technicians (Fellow)
Enrolled Agent
Our advisors have a combined experience of over 40 years in expatriate tax and private client work, specialising in UK and US individual tax compliance and advisory.
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Having previously trained and worked in US/UK High Net Worth tax teams at 'Big 4' firms in London, our advisors have experience across a wide range of client profiles and industries within the high net worth space.
CONTACT
OFFICE ADDRESS
MEMBERSHIPS
chris.beauchamp@neptunetax.co.uk
+44 (0)204 583 1109
Chartered Institute of Taxation:
208003 (Tien)
182815 (Myint)
Association of Tax Technicians:
171287 (Beauchamp)
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REGISTERED ADDRESS

mike.tien@neptunetax.co.uk
+44 (0)204 583 1106
Neptune Tax Limited
1 Fore Street Avenue
Moorgate
London
EC2Y 9DT
United Kingdom
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Neptune Tax Limited
27 Old Gloucester Street
London
WC1N 3AX
United Kingdom
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Company Number: 13588108
Enrolled Agent:
000137982 (Tien)
000103623 (Beauchamp)
000116743 (Myint)
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thurane.myint@neptunetax.co.uk
+44 (0)204 551 4614