Global Tax Consulting
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Global Tax Consulting
At Global Tax Consulting, we make UK tax administration more straightforward for expats, digital nomads, landlords and returning residents. Our digital-first approach covers tax-efficient arrival and departure planning, non-resident arrangements, applicable reliefs, annual tax filings and refunds of tax paid in error. We also manage UK property income, capital gains reporting and voluntary disclosures. Founded by Emma McDermott, ATT, we provide secure online support, agreed fees and expert review before filing.
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
Our UK tax return service is designed for expatriates, non-residents and people with international income who need reliable Self Assessment support. We establish your tax residence position, prepare the appropriate forms and consider relevant exemptions, allowable expenses and treaty relief. Where circumstances permit, we also pursue foreign tax credits and refunds of tax paid unnecessarily. Every return is prepared for submission to HMRC, with fees agreed before work begins.
Our Statutory Residence Test service offers expatriates a structured assessment of their UK tax status. We examine your days of presence, including relevant midnight, transit and deeming rules, before evaluating your employment circumstances and connections to the UK. By considering the automatic overseas test, automatic UK test and sufficient ties test, we establish your position and explain any applicable split-year treatment in writing.
We provide specialist international tax advice for individuals moving to or from the UK, helping you establish the appropriate residency status and manage your tax obligations. Our guidance covers the Statutory Residence Test, split-year treatment, foreign income and gains relief, and double tax treaties. We also prepare the necessary self-assessment returns, elections and claims to maintain compliance with HMRC.
Our Let Property Campaign service supports landlords who need to bring previously undeclared UK rental income to HMRC’s attention. We review available records, reconstruct income and expenses for each relevant tax year, and calculate the tax, interest and potential penalties. Before submitting your disclosure, we prepare the case explaining your circumstances and behaviour, helping you pursue an appropriate settlement and restore compliance.
At Global Tax Consulting, we help UK taxpayers resolve outstanding offshore tax matters through the Worldwide Disclosure Facility. Whether your circumstances involve foreign rental income, overseas investments, bank interest or cryptocurrency gains, we assess the relevant tax years and establish what must be declared. We then calculate the amounts due, consider available foreign tax relief, explain the circumstances surrounding any omissions and manage settlement with HMRC.
Selling a UK property while living abroad can involve complex Capital Gains Tax calculations and strict reporting deadlines. We manage the process from start to finish, comparing rebasing to the April 2015 valuation, time apportionment and taxation of the whole gain. After considering allowable costs, losses and available reliefs, we select the most advantageous permitted basis and submit the return and payment details within HMRC's 60-day window.
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)
Maria Pascua
Maria Pascua
May 30, 2026
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I can't recommend Emma highly enough to advise you and manage your tax affairs. She helped us deal with our rental property tax. We were not familiar with the process, but Emma explained everything very clearly and professionally through an initial video call, then communicated promptly whether on email or her secure platform, or both, just to confirm we were ok with the next steps. She always seemed available for us. We will use her services again for sure.
Olivia Jonsson
Olivia Jonsson
May 20, 2026
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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.
Don Palmer Rome
Don Palmer Rome
Mar 20, 2026
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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.
Chiara
Chiara
Feb 11, 2026
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Emma has lifted a huge weight from my shoulders . Thank you Emma! Highly recommended.
In the year when I moved from the UK to Spain, with a digital nomad visa, I spent months trying to wade through complex systems to determine my UK tax status. I finally gave in and decided to find help - and I'm so glad I came across GTC and Emma. Within a few emails, Emma had found the best path for me and completed my tax return. She was incredibly prompt at responding to my questions, and her knowledge of these complex systems is excellent. Very fair and clear pricing too.
Ross Bulat
Ross Bulat
Jan 30, 2026
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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.
Ned Merrick
Ned Merrick
Jan 21, 2026
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Emma was really thorough and did a great job on our UK tax return, which is complicated as I’m also a US citizen. She managed to get us a substantial return from overpayment when I did my taxes alone using tax software.
Kate Hartley-Louis
Kate Hartley-Louis
Dec 18, 2025
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Amazing service by GTC for my expat tax services. Efficient, kind and extremely helpful. Would not go anywhere else for my tax returns now.
Sabrina
Sabrina
Aug 05, 2025
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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.
Natasha C.
Jul 03, 2025
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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.
Ukasz Wysoczaski
Ukasz Wysoczaski
May 24, 2025
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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.
Muriel Shields
Muriel Shields
Mar 28, 2025
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I worked with Emma McDermott at GTC to file my UK taxes and resolve a complex tax situation that previous accountants had struggled with. Emma and the team at GTC were responsive, efficient, and communicative throughout the process. I would highly recommend their services to any expat in need of tax assistance abroad.
Tssiuttd
Tssiuttd
Feb 19, 2025
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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.
Linda
Linda
Feb 16, 2025
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Emma was absolutely fantastic. She returned e-mails really quickly and the whole process was efficient and fast. Emma is infinitely knowledgeable about all aspects of expat taxes - (we're husband and wife - he's from the US and she's from the UK but also has a US passport), and Emma explained every nuance clearly and as many times as we needed to understand it! Her understanding of ALL the tax codes and intricacies saved us a lot of money. We do our own taxes with Turbo Tax in the US and thought we had a good idea of how we'd do our UK taxes. That was not the case - it's much less intuitive, and Emma was absolutely fantastic! Couldn't recommend her more highly.
Wendy Lieu
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!
Jasmine Castro
Jasmine Castro
Aug 30, 2024
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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.
Erica Quinn
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
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.
Gemma Wood
Gemma Wood
Jun 04, 2024
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I had a great experience with Emma and Global Tax Consulting. I have transitioned to freelance consultancy work as a digital nomad, as a British person working overseas. I received the expert advice I needed on my residency and tax status. The service is good value for money, efficient and clear - highly recommended!
Bryan Grinham
Bryan Grinham
May 31, 2024
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Excellent, responsive work from Emma. UK tax for non resident personnel resulted in a refund less than a week after Emma submitted my self-assessment form. She has also helped provide the correct tax position for my Double Taxation problems within Spain. I couldn't recommend GTC more highly.
Cem Kullukcu
Cem Kullukcu
May 07, 2024
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Emma was exceptional. For context, I am an expat in the UK reporting foreign income to the HMRC, and I was recommended her by my lawyers in Portugal. From the first consultation call, Emma was extremely professional, and it was obvious that she knew the specifics of my situation very well given her clientele constitutes of people with a similar background to mine. Beyond her ability to explain the different tax laws to me, she was very quick to respond to any questions I had during the submission process and helped me identify the relevant documents that I had to submit. Also, very reasonably priced, especially when compared to larger players in the market (I can't see them offering any more than Emma's service. Very easy 5/5 rating.
Lisa
Lisa
Apr 06, 2024
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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.
W. King
W. King
Feb 22, 2024
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Emma at Global Tax Consulting took away all the stress and doubt about tax! She efficiently filed my returns and expertly guided me through my first year of self-employment while living abroad. Her understanding of international tax implications is unmatched. Highly recommend Emma for anyone needing top-notch tax advice!
Kristen Crandell
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.
Sam
Sam
Sep 11, 2023
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Emma is an incredibly knowledgable advisor on multiple areas of tax, within multiple jurisdictions around the world. I've found the service to be extremely helpful when looking at relocating and assessing options around the globe. If you're looking for someone to advise you on tax matters, look no further!
Michael Harbone
Michael Harbone
Sep 02, 2023
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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
Steve Fernandes
Aug 22, 2023
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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
George
Jul 14, 2023
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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
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!
Utkarsh Sinha
Utkarsh Sinha
Jun 18, 2023
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Cross-border taxes can be quite complicated to deal with, so I am glad I found Global Tax Consulting. Emma helped prepare my tax returns, providing valuable help in helping me make sense of the various tax rules applicable to my specific circumstances. I really appreciated the prompt service, transparent and upfront pricing, as well as the willingness to discuss my specific complexities in more detail as needed. 100% would recommend using GTC for your tax returns.
Pammal Ashwin
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.