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Clear Cross Border Tax Advice In Spain, Gibraltar & UK 

We are the answer to tax problems for individuals and companies with assets and income in a cross border situation. For example - you have moved to Spain and rent out a property in the UK, or you live in Spain and work in Gibraltar. We can help with advice and planning for any scenario, including giving help in providing business plans to obtain a Visa to live and work in Spain. 

Are you resident for tax purposes in Spain? Do you understand the criteria for tax residency? If you need help to clarify your unique situation please get in touch!



Help with all of your Tax and Accounting Needs


With more than 30 years experience with UK tax, we work with individuals and small businesses to minimise your tax liabilities and keep you compliant with HMRC. 

We can provide bookkeeping and accounting, preparation of accounts, filing of individual and company tax returns, payroll services and VAT returns.

Affordable Company formation packages even for non UK residents


After 20 years working in Spain we have extensive knowledge of the complicated administrative and tax systems and can help you with clear advice in English!

We can form companies, register as Autonomo as well as obtaining your digital certificate. Once registered we provide bookkeeping and accounting services in English and file all returns required.

We can also help with applications for Beckham Law and business plans for Visa applications

Price Lists

Click here to view prices for UK services

Click here to view prices for Spain services

Click here to view prices for Gibraltar services


Glenda Smithson

I qualified as an Accountant in the UK in 1993 and built my successful UK practice until in 2003 I sold it to move to Spain. Whilst living in Spain, my husband and I have ran multiple successful companies and I have worked in Gibraltar and Spain whilst studying International Tax. 

In 2019 I set up GJS International Tax with offices in UK and Spain to provide tax advice to expats with interests in both countries. Together with the UK and Spain, Gibraltar continues to be supported especially those living in Spain and working in Gibraltar, I know only too well the challenges this gives!

I currently spend my time between UK and Spain with my main home in Valencia. I enjoy meeting my clients and many have turned into friends over the years so if you would like to meet for a coffee or glass of wine please get in touch!


Let’s Work Together

Whatsapp Spain: +34 711034385

Whatsapp UK: +44 7465 225809

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