We help internationally mobile professionals, expatriates, digital nomads and non-resident landlords navigate their UK tax obligations through Global Tax Consulting. Our services cover the Statutory Residence Test, UK tax residency, split-year treatment, the FIG regime, non-resident tax returns, capital gains arising from UK property and disclosures to HMRC. Emma McDermott, ATT, founded and leads the firm, bringing her membership of the Association of Taxation Technicians since 2020 and published work in Tax Adviser magazine. Clients in more than 50 countries receive online advice for a fixed fee agreed upfront.
Served areas
- Worldwide
Details
- Year established: 2023
- Licensed
- Insured
Highlights and features
- Specialist UK tax advice for expats and digital nomads worldwide
- Expert residency planning, split-year treatment and non-resident tax advice
- Fixed-fee UK tax returns and personalised international tax planning
- Recover overpaid PAYE and reduce unnecessary UK tax deductions
- Comprehensive UK property rental income and capital gains tax support
- Founder-led expertise with every submission reviewed by Emma McDermott, ATT
Associations and certifications
- Association of Tax Technicians
Payment methods
- Debit cards, Credit cards, Mobile payments, Bank transfers
Services
We provide tailored UK Self Assessment support for clients whose tax affairs involve living abroad, returning to the UK or earning income across several countries. Each return is prepared according to the individual's circumstances, including residence status, applicable exemptions and available reliefs. We also handle eligible PAYE refund claims, property-related deductions, foreign tax credits and amendments to earlier returns before submitting the relevant documentation to HMRC.
We provide comprehensive advice on the UK Statutory Residence Test to establish your tax residency status. By examining your travel history, working arrangements and connections to the UK, we assess whether you qualify as resident or non-resident for tax purposes. Our assessment also considers applicable day-counting rules, relevant UK ties and split-year treatment, delivering a clear written conclusion with supporting reasoning.
Our international tax planning service supports individuals navigating a change of residence across borders. We assess your circumstances to determine the most suitable departure or arrival arrangements, taking account of residence rules, relevant deadlines and available tax reliefs. From coordinating the timing of income and capital gains to managing self-assessment submissions, we implement a considered strategy designed to optimise your UK tax position while maintaining accurate records for HMRC.
We help landlords resolve undeclared UK rental income through the Let Property Campaign, managing voluntary disclosures to HMRC from initial notification to final payment. By preparing accurate rental accounts, calculating outstanding tax, interest and penalties, and presenting the circumstances of your case clearly, we work to minimise penalties. Our support also includes arranging payment solutions and maintaining compliance through subsequent annual tax returns.
We manage the Worldwide Disclosure Facility process on your behalf, providing structured assistance with previously undeclared offshore financial matters. Initially, we establish which income, gains, assets and periods fall within the scope of disclosure. Registration follows once the necessary groundwork is complete, allowing us to prepare accurate year-by-year calculations and explain the circumstances surrounding the omission. We then submit the offer and support you through settlement with HMRC.
Our non-resident capital gains tax service is designed for individuals disposing of UK property from overseas. We calculate your gain using each of the three permitted methods, evaluate the potential tax outcomes and elect the most advantageous basis. Where relevant, we incorporate private residence relief, losses and allowances, then prepare and submit your return to HMRC, providing the necessary payment information and copies for your records within the required timeframe.
People
Emma McDermott
Founder
Emma McDermott founded Global Tax Consulting in 2023 to give expats and digital nomads straight answers on UK tax. She has been a member of the Association of Taxation Technicians since 2020, has seven years experience in UK and international tax, and is published in Tax Adviser magazine on the UK/US Double Taxation Agreement.
Reviews (17)
David
May 06, 2026
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Having left the UK at the beginning of the year I needed a professional expat tax consultancy company to assist me with my tax affairs. I cannot recommend Emma at GTC enough, her knowledge of the expat tax world is exceptional and her efficiency and speed of dealing with matters is unmatched. I could not be any happier with the service I have received and would highly recommend GTC and Emma to anyone needing similar services. David
A. Kong
May 03, 2026
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We could not possibly have navigated the UK tax system without Emma's help. My mum, now living in the US, had a tax issue that neither my sister nor I could help her with. Finding Global Tax Consulting online was a godsend. Emma was so knowledgeable, and quick to respond to every one of our numerous emails. She had it sorted and paid in a very short amount of time. Global Tax Consulting is worth every penny of their fee.
Fathi Azribi
Mar 09, 2026
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Kate Hartley-Louis
Dec 18, 2025
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Simon Woods
Jun 27, 2025
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Peter Scott
May 25, 2025
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Thais Compoint
Apr 29, 2025
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I'm absolutely thrilled with Emma's services! She's responsive, clear, knowledgeable, and incredibly helpful. Her fee structure is transparent, which I truly appreciate. After dealing with unreliable firms in the past, finding someone as trustworthy as Emma has been a breath of fresh air. She has completely restored my faith in accountants. Highly recommend!
Nick Pellant
Oct 01, 2024
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Wendy Lieu
Sep 04, 2024
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I have just started working with Emma to settle my UK tax return. During the initial 30 minute consultation, Emma helped clear up a lot of confusions in regard to my tax questions between UK and AU.
The tax return process with Emma was easy and efficient with minimal back-and-forth with documents. You are also provided a handy customer portal which I found refreshing, and a very organised way for me to keep track of all the documents and any outstanding items to action. She was also very responsive with any questions I had during the process.
Emma also went above and beyond, helping to provide detailed answers, and reaching out to another expat firm in Australian when my Aus accountants were providing inconsistent advice to the tax treaty.
Highly recommend working with Emma to get things done in the most efficient way possible!
The tax return process with Emma was easy and efficient with minimal back-and-forth with documents. You are also provided a handy customer portal which I found refreshing, and a very organised way for me to keep track of all the documents and any outstanding items to action. She was also very responsive with any questions I had during the process.
Emma also went above and beyond, helping to provide detailed answers, and reaching out to another expat firm in Australian when my Aus accountants were providing inconsistent advice to the tax treaty.
Highly recommend working with Emma to get things done in the most efficient way possible!
Adi Kujal
Jul 30, 2024
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Erica Quinn
Jul 29, 2024
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Really glad I found Emma and GTC to assist with filing a SA as a US expat. I have been using BrightTax for several years (to do an IRS return) and asked for a referral for a similar level of service for the HMRC return. I have been doing the accounting and filing myself and just don’t feel competent or confident. Emma and GTC sorted it out, filed the new SA and reviewed the previous year’s documents in the space of a week. So pleased. It has been a huge stressor because the implications of getting it wrong loom large. I hope to be able to refer my kids to both tax prep companies as they start working after college.
Alex Burgess
Jul 14, 2024
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I have had the pleasure of working with Emma from Global Tax Consulting for a while now, especially to navigate through a complex tax situation. Emma has been an invaluable asset in understanding and managing my tax affairs both in the UK and abroad. Her professionalism is unmatched, consistently demonstrating a quick response time to my queries and providing clear, concise advice. Her expertise and dedication have been instrumental in resolving my tax issues, making a potentially stressful process much smoother. I'm very pleased with the service provided and would recommend her to those looking for reliable tax consulting services.
Alison
Mar 08, 2024
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Emma and her team at Global Tax Consulting are excellent. I recommend them wholeheartedly.
As an expat who has recently returned to England, I had been looking for a UK-based accountant for several months, primarily to file my taxes, and also to provide lots of ancillary tax advice. After considerable research, I found Emma and GTC.
Emma is friendly, smart and competent, extremely knowledgeable about the UK tax code and HMRC procedures, and very much on top of things. The GTC website and wizard are well designed – better than others I have encountered – making uploading to the portal easy. Emma returned my emails or messages within hours, with full and complete responses, and provided other support and HMRC communication quickly and efficiently. My taxes were completed within days, and Emma stayed abreast of things to ensure the payment went through properly.
Emma and GTC made filing UK taxes as stress-free as possible. I will certainly use their services again next year.
As an expat who has recently returned to England, I had been looking for a UK-based accountant for several months, primarily to file my taxes, and also to provide lots of ancillary tax advice. After considerable research, I found Emma and GTC.
Emma is friendly, smart and competent, extremely knowledgeable about the UK tax code and HMRC procedures, and very much on top of things. The GTC website and wizard are well designed – better than others I have encountered – making uploading to the portal easy. Emma returned my emails or messages within hours, with full and complete responses, and provided other support and HMRC communication quickly and efficiently. My taxes were completed within days, and Emma stayed abreast of things to ensure the payment went through properly.
Emma and GTC made filing UK taxes as stress-free as possible. I will certainly use their services again next year.
Kristen Crandell
Sep 26, 2023
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We would highly recommend Emma - she was a huge help in dealing with a difficult tax situation. She was prompt and responsive throughout the process. We greatly appreciated her skill in explaining complex situations and discussing options with us, and her taking extra time to do so. Lastly, she went above and beyond the call of duty for us when I made an error. We definitely plan on working with Emma again.
Alex Koenig
Jul 09, 2023
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I would absolutely recommend GTC to anyone looking for tax support. I'm a dual resident with complicated international taxes and working with Emma has completely put my mind at ease. She knows her stuff and she's extremely reliable. Emma is also just a great person with a good energy, she's made doing my taxes somewhat enjoyable for a change!
Oli Lewis
Apr 13, 2023
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Pammal Ashwin
Feb 28, 2023
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Emma is my accountant for NHS pensions matters. It is a niche area and finding accountants with such expert knowledge as Emma is next to impossible. She has always been a pleasure to deal with and always responds promptly to any matters arising. I would highly recommend her for NHS pensions tax calculations and scheme pays elections.