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Managing UK tax from overseas requires specialist knowledge and careful planning. At Global Tax Consulting, we support expats and digital nomads with non-resident applications, residence assessments, UK tax returns and claims for overpaid tax. We also advise on foreign income and gains relief, UK rental income and property disposals. Emma McDermott, ATT, oversees our fully online service, providing professional guidance and clarity on each client's tax position.

Served areas
  • Worldwide
Business 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 take responsibility for preparing accurate UK tax returns for clients living abroad or managing income across several countries. After reviewing your circumstances, we complete the relevant Self Assessment pages and assess claims for exemptions, allowances, expenses and relief against overseas tax. We also assist with rental income reporting, PAYE refunds and overdue returns where required. Our secure online process keeps documentation organised, while direct HMRC filing helps ensure your obligations are addressed on time.
Our UK residency advisory service is designed to replace uncertainty with a considered assessment of your tax status. We evaluate your travel records, employment arrangements and UK connections, taking account of the automatic overseas and UK tests before applying the sufficient ties test where necessary. We also investigate eligibility for split-year treatment and supply a written conclusion, supported by clear reasoning, to help you understand your position.
International relocation can affect residency, income taxation and the reliefs available under UK tax rules. We provide tailored advice to help you understand these implications before a move and manage your obligations afterwards. By examining your day counts, UK connections, assets and overseas income, we identify relevant planning opportunities and filing requirements. Our support extends to implementing the agreed approach through accurate returns and appropriate claims to HMRC.
We take responsibility for managing your Let Property Campaign disclosure, helping you move from uncertainty about undeclared rental income towards an agreed tax position with HMRC. After an initial confidential discussion, we reconstruct the relevant accounts, identify allowable expenses and calculate outstanding liabilities. Our team prepares the disclosure, supports the proposed treatment of your behaviour and assists with settling the amount due, including negotiating payment over time when appropriate.
We specialise in preparing and managing voluntary disclosures for UK taxpayers with previously unreported foreign income and gains. Through HMRC’s Worldwide Disclosure Facility, we review your financial position, identify the applicable reporting obligations and calculate tax liabilities for each relevant year. Our work includes claiming eligible foreign tax credits, presenting the circumstances of the original omissions and negotiating an appropriate settlement, with the aim of reducing penalties wherever possible.
We offer a fully managed service for non-residents who have sold, or are preparing to sell, residential property in the UK. By reviewing the transaction details and relevant expenses, we calculate the capital gain under each permitted method and determine which basis is most advantageous. We also assess eligibility for private residence relief and account for available losses and allowances. Our advisers prepare and file the required return with HMRC within 60 days of completion and provide the necessary payment information.
People
Emma McDermott
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 (30)
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Charlotte Howlings
Sep 04, 2026
Emma has been incredibly helpful in guiding me through the accounting requirements and rules around running my business abroad. She is highly knowledgeable, always quick to respond to queries, and explains everything clearly. Her advice and support have been invaluable, and I cannot recommend her highly enough.
Olivia Jonsson
May 20, 2026
I contacted GTC for a tax residency assessment and was really impressed with the service I received. Emma was fantastic to deal with – responsive, knowledgeable, and quick to answer any questions I had.

The whole process was straightforward, with a very fast turnaround and clear advice throughout. I'd happily recommend GTC to anyone looking for tax residency or international tax guidance and would definitely use their services again.
David
May 06, 2026
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
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.
Uk Business Energy Broker
Apr 03, 2026
Emma was fantastic from the moment I contacted her: prompt responses to emails, knowledgeable, and professional. I made first contact 9 days ago, and I have a refund from HMRC hitting my account tomorrow!

What makes this even more impressive is that I was advised by two separate accountants that I was still liable for UK tax - despite that fact I am based overseas - but I wasn't convinced that they had understood my situation properly. If you're a remote worker or digital nomad, don't waste your time communicating with anyone else apart from Global Tax Consulting. Highly recommend! Thank you, Emma.
Don Palmer Rome
Mar 20, 2026
I’m really grateful to Emma and the team at Global Tax Consulting for helping me with my non-resident UK tax situation. It was quite stressful and confusing at first, but Emma explained everything clearly and guided me through the whole process.
The amended tax return was handled smoothly and the communication throughout was excellent. I really appreciated how supportive and professional the team was.

I would definitely recommend them to anyone needing help with non-resident UK tax matters.
Ross Bulat
Jan 30, 2026
Emma was fantastic throughout the tax reclaim process, her response times were extremely quick and she exercised urgency and professionalism every step of the way. Highly recommended for digital nomads looking for knowledgable partners to manage their tax affairs.
Roman Yatsukha
Nov 26, 2025
Received quick and expert advice regarding my tax situation, as well as a filled out tax return. I overpaid taxes for my non-resident period of the year, and Emma at GTC helped me get it back. The price is more than fair.
Andy Whitaker
Nov 07, 2025
This was our first year utilizing Emma McDermott at Global Tax Consulting for our UK returns - and it will not be our last as we believe we have finally (after several years of seeking), found a UK tax preparer that we can trust, and that we can work with indefinitely.

We have a fairly complicated tax situation as we have to file in the UK and USA. We are also exploring potential residency in another country (still TBD).

Emma provided comprehensive advice and guidance in completing our UK returns and also liaised with our USA-based tax accountants to ensure that our returns were filed appropriately in both jurisdictions this year.

Emma was an absolute pleasure to work with on our returns. She is warm and friendly, incredibly responsive, and also endlessly patient when answering our many questions.

Emma is reassuringly knowledgeable on the intricacies of international tax reporting and has that very rare skill of being able to break complex tax regulations into easily digestible `bite-sized’ pieces. This was a much-needed skill when dealing with tax dummies like us.

We hope to be working with Emma for many years to come, and we wholeheartedly recommend her to anyone looking for UK tax preparation services, and/or for consulting services that will de-mystify the intricacies of your specific international tax obligations.
Steve McConnell
Oct 26, 2025
I'm a digital nomad from the UK and worked with GTC to help with my tax return and non-residency status. Super responsive professional team, my advisor Emma was able to answer all my queries and hold my hand throughout the process. Would recommend to any digital nomads!
Chad Geiger
Oct 06, 2025
As expats, we began our journey from the US to the UK in early 2020. Unbeknownst to us, our lack of research and settling on the nearest tax preparer that answered in the affirmative in being able to support our situation would be a costly mistake.

Enter GTC, at the suggestion of a UK-based global traveler that we also call a dear friend, who not only were able to onboard us to help with our returns going forward, but also review our previously submitted returns, finding accounting errors throughout. These errors proved to be in our benefit, and when extensive processing delays were encountered in our HMRC dealings, their doggedness was much appreciated. Highly recommend!
Konstantin Kovalev
Aug 11, 2025
Emma McDermott from GTC is an outstanding expert who provided excellent service in submitting a tax return for foreign income. She is prompt, patient, and professional. I love working with her and would definitely use her services again. Highly recommend!
Sabrina
Aug 05, 2025
I have used the services of Global Tax Consulting for help with UK tax returns as someone who no longer resides in the UK. I must say that the quality of the service was just excellent. From the professionalism, the speed and the guidance, everything was very well handled and explained. I am certainly a very satisfied client who would most likely return if needed. Thank you Emma for all your great work.
Natasha C.
Jul 03, 2025
GTC and Emma are exceptional. Incredibly knowledgeable and experts in the field. Their client service and responsiveness are off-the-charts fantastic.

Some context - having been relocated for work, I was a Swiss expat for several years before returning home to the UK, resulting in fairly complex international tax and expat-tax matters. I can unequivocally and honestly say that I do not know where I’d be without Emma’s guidance and assistance. To say she removed a huge chunk of my stress is an understatement.

Emma is professional, extremely efficient, responsive and has the ability to patiently guide one through the myriad of tax issues and nuances with the utmost care, detail and consideration. She does this while ensuring that the outcomes are optimal and fully compliant.

I have taken complex international tax matters to Emma and she has not only guided me through the UK requirements, but also my advisors and colleagues in Switzerland, sometimes taking the time to speak to them directly to assist their understanding.

I wholeheartedly (and highly!) recommend Emma and GTC to anyone needing UK tax assistance or advice.
Simon Woods
Jun 27, 2025
I couldn’t recommend GTC and Emma more positively. Great communication and expert understanding of the issue, with
a first class time sensitive resolution. Really impressed and highly recommended.
Ukasz Wysoczaski
May 24, 2025
I am very grateful for the patience, knowledge and expertise that Emma showed. My case was quite complicated, yet she managed to sort it out brilliantly. I could not be more pleased with the outcome. Money well spent. Thank you Emma, it was a pleasure dealing with you.
Joanna Gibson
May 12, 2025
I'm so glad that I went to Emma to file my return with HMRC. She was helpful, efficient and fast. I have waited weeks for international tax advisors to prepare my taxes - Emma did the job in 48 hours. I shall certainly be using Emma's services in the future.
Tssiuttd
Feb 19, 2025
Emma helped us sort our first return to UK tax returns with our links to Canada and France and we were very happy with the quick responses we received and the action that was taken. We will be using her again & would definitely recommend.
Jasmine Castro
Aug 30, 2024
I recently had the pleasure of working with Emma at Global Tax Consulting, and I must say she is truly amazing. From the moment I reached out to her for assistance, Emma exhibited a high level of expertise and professionalism.

Emma took the time to thoroughly understand my situation, addressing all my concerns with clarity and precision. What sets Emma apart from the other tax consultants I have worked with is her extremely friendly and personable approach and her communication. She made me feel at ease from the start and explained things in a way that was easy for me to understand and ensured that I was well-informed throughout the entire process.

Working with Emma has been a game-changer for me, and I genuinely wish I had found her sooner. I highly recommend Emma and Global Tax Consulting to anyone in need of expert guidance and a seamless tax consulting experience.
Jb
Aug 10, 2024
I recently faced a serious issue with HMRC regarding worldwide disclosure. Despite exchanging numerous emails over the past 10 months, we made no progress in resolving the issue. HMRC’s lack of transparency left me frustrated.
Desperate for a solution, I reached out to several tax advisers advertised online. Unfortunately, most of them demanded upfront payments without fully understanding my specific problem.
Then I found Emma McDermott, a tax adviser at Global Tax Consulting. Emma took direct action by contacting HMRC for further clarification. Within a month, she successfully resolved the problems that had plagued me for years.
Emma’s service was exceptional:
• Prompt and Efficient: Everything was handled electronically, streamlining the process and minimizing hassle. The turnaround time was impressively quick.
• Highly Responsive and Professional: Emma maintained a consistently high level of professionalism throughout. Her timely communication made a significant difference.
• Excellent Advice: Emma’s expertise provided valuable insights, ensuring the best possible outcome.
I am genuinely pleased with Emma’s services and wholeheartedly recommend her and Global Tax Consulting. If you’re facing tax-related challenges, look no further!
Adi Kujal
Jul 30, 2024
Global Tax is incredible. Since the day I initially had my consultation its been nothing but fast replies, efficiency and I just received my refund from HMRC yesterday. I am a digital nomad who needed advice from an accredited and trusted source. I'm so glad I found these guys.
Erica Quinn
Jul 29, 2024
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.
Lisa
Apr 06, 2024
I enlisted Emma to prepare and submit my tax return for 2022 and 2023. She demonstrated exceptional expertise and professionalism. Despite my limited understanding of the UK tax system, Emma provided thorough explanations and promptly addressed my queries. I value her impressive turnaround time and plan to continue working with her in the future. I highly recommend her services.
Michael Harbone
Sep 02, 2023
Emma did an amazing job and helped me realize because I wasn't living in the UK I could save a lot in taxes.

I am really impressed at how she operated and guided me through the whole process, doing the majority of the work. Very happy
Steve Fernandes
Aug 22, 2023
I had the pleasure of working with Emma for my tax needs, and I couldn't be more satisfied with her services. Emma's extensive knowledge in tax matters was evident throughout the process. She displayed excellent attention to detail and ensured that every aspect of my taxes was thoroughly examined.

What stood out most was Emma's proactive approach. She asked all the right questions, leaving no room for oversight. Her follow-up was impeccable, and I felt reassured that my financial matters were in capable hands. I highly recommend Emma for anyone seeking a tax agent who is not only knowledgeable but also dedicated to providing top-notch service.
George
Jul 14, 2023
I was a digital nomad this year and had decided I wanted to leave the UK and become a non-tax resident, I was overwhelmed with all the requirements and didn't fully understand it all. After working with Emma I now have list of requirements I need to meet based on my personal situation which I fully understand. She also helped with my P85 to get a NT (non tax) code which HMRC approved. Would happily work with again.
Alex Koenig
Jul 09, 2023
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!
Tom Bee
Jun 21, 2023
I moved abroad but had some complicated tax issues to resolve in the UK which I had been putting off. Did a free consultation with Emma who simplified everything for me and undertook the work immediately to get everything resolved.

Emma was professional, knowledgeable, friendly, and very proactive during the whole process. I was bouncing all over the place but Emma was always reaching out to get everything finalised asap so I didn't acrue any penalties. She even reached out to HMRC to resolve an issue with my tax residency which I hadn't considered before the consultation.

Overall 10/10 experience and I would happily recommend Global Tax Consulting to anyone.
Oli Lewis
Apr 13, 2023
So grateful for Emma's help and knowledge. I needed an urgent tax document and Emma saved the day. She was fast, responsive, and incredibly helpful. I look forward to working with her again.
Foysol Miah
Feb 04, 2023
I'm a British national and have been a digital nomad travelling the world for the past 2 years.

Emma was a pleasure to work with. She's knowledgeable, efficient and brought me right up to speed with what was required.