For internationally mobile professionals seeking clarity on UK tax, we provide specialist advice and practical support from wherever they are based. Global Tax Consulting assists with residence planning, non-resident status, split-year claims and the foreign income and gains regime. Our services extend to personal tax returns, rental property obligations, Capital Gains Tax and disclosures to HMRC. Emma McDermott, ATT, leads the process, combining professional oversight with convenient online delivery.
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 specialise in preparing and filing UK Self Assessment tax returns for expatriates, non-residents and international clients. Our service covers the relevant residence, employment, property and foreign income pages, ensuring your circumstances are accurately represented to HMRC. We identify available allowances, tax reliefs and refund opportunities, manage submission deadlines, and provide a straightforward, fully online process at an agreed fixed fee.
A reliable residency assessment begins with an accurate review of your circumstances. We analyse your UK presence, overseas working arrangements and relevant personal connections to determine how HMRC's Statutory Residence Test applies. Our work covers the automatic tests, sufficient ties requirements and potential split-year provisions. You receive a clear written assessment setting out the conclusion, the factors considered and the implications for your UK tax 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 provide comprehensive assistance to landlords seeking to correct their UK rental tax affairs through the Let Property Campaign. Whether the omission resulted from living overseas, misunderstandings about allowances or assumptions concerning mortgage payments, we assess the available information and establish what needs reporting. Our service covers notification, year-by-year calculations, penalty representations and settlement, followed by support with ongoing tax returns to maintain 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.
Our specialist advisers support UK expatriates, overseas professionals and non-resident landlords who need to report a property disposal to HMRC. We establish the correct taxable gain by comparing the three permitted calculation methods and considering any applicable private residence relief, losses and allowable costs. As the election can have significant financial consequences, we identify the most favourable available basis before filing. We manage the reporting process within the 60-day deadline and confirm the amount and reference for payment.
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 (30)
Lionel Van Der Walt
Sep 26, 2026
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.
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.
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.
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.
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.
Fathi Azribi
Mar 09, 2026
Chiara
Feb 11, 2026
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.
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.
Ned Merrick
Jan 21, 2026
Kate Hartley-Louis
Dec 18, 2025
Nico Marrero
Nov 24, 2025
We highly recommend Emma at Global Tax Consulting.
She recently helped us resolve a complicated, time-sensitive issue with our tax return. Emma's professionalism and technical expertise were immediately apparent; she swiftly identified the necessary corrective steps and resolved the matter efficiently.
It’s reassuring to know that when unexpected issues arise, we can count on GTC to help us. Emma was very professional and we are really pleased with her support.
She recently helped us resolve a complicated, time-sensitive issue with our tax return. Emma's professionalism and technical expertise were immediately apparent; she swiftly identified the necessary corrective steps and resolved the matter efficiently.
It’s reassuring to know that when unexpected issues arise, we can count on GTC to help us. Emma was very professional and we are really pleased with her support.
Dani K.
Oct 29, 2025
Emma is brilliant! She offers a super clear and straightforward service, breaking through HMRC's infinite layers of bureaucracy and making your life just a bit easier.
And you know from the outset how much the service will cost so no surprises there.
She is quick to reply and is super friendly.
I can't recommend GTC enough!
And you know from the outset how much the service will cost so no surprises there.
She is quick to reply and is super friendly.
I can't recommend GTC enough!
Craig Galloway
Oct 23, 2025
I would like to highly praise Emma at GTC for her support in my personal circumstance. She gave clear guidance to law and g is enabled me to clearly understand all requirements. Highly advise GTC for those working internationally.
If you want thorough understanding and support then GTC is fantastic.
If you want thorough understanding and support then GTC is fantastic.
Will Torness
Jul 22, 2025
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.
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.
Lian Owen
Jun 17, 2025
Davide Crestini
May 29, 2025
The service offered by GTC and Emma has been outstanding. She’s very knowledgeable about taxes and explain everything in details.
She has been extremely helpful with sorting out my taxes, as well as with advising about what I needed to do while moving out of the UK. Further, the platform she uses to provide documentation is one of the few decent platforms that I actually enjoy using. Overall a highly recommended service
She has been extremely helpful with sorting out my taxes, as well as with advising about what I needed to do while moving out of the UK. Further, the platform she uses to provide documentation is one of the few decent platforms that I actually enjoy using. Overall a highly recommended service
Peter Scott
May 25, 2025
Muriel Shields
Mar 28, 2025
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
Feb 19, 2025
Wendy Lieu
Sep 04, 2024
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!
Hasan Parvez
Sep 03, 2024
Jamie Hall
Jul 26, 2024
Alex Burgess
Jul 14, 2024
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
Jun 04, 2024
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!
Kristen Crandell
Sep 26, 2023
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.
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.
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.
Anne M.
Aug 21, 2023
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.
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.
Chris Hart
Apr 23, 2023
I’m lucky I found Emma – she’s helped me get on top of my taxes and navigate a disclosure.
She really knows her figures – even the HMRC even bowed to her knowledge and told us she was right and they were wrong.
I love that Emma’s happy to see things through until they’re finished, long after her initial payment.
My wife will need an accountant soon, and we’ll use Emma again.
She really knows her figures – even the HMRC even bowed to her knowledge and told us she was right and they were wrong.
I love that Emma’s happy to see things through until they’re finished, long after her initial payment.
My wife will need an accountant soon, and we’ll use Emma again.
Oli Lewis
Apr 13, 2023
Foysol Miah
Feb 04, 2023