Double-tax treaty provider
Grant Thornton
Global tax and mobility advisory network
International tax, expatriate tax, double-tax analysis, foreign tax relief and cross-border compliance through member firms. A network does not mean every firm handles the same treaty.
At a glance
- Provider type
- Global tax and mobility advisory network
- Global reach
- Very high
- Primary audience
- International businesses and globally mobile individuals
- Individual treaty analysis
- Strong
- Corporate treaty analysis
- Exceptional
- Treaty residence
- Strong
- Double-tax relief
- Strong
- Employment / income treaty issues
- Strong
- Estate / inheritance capability
- Varies by firm
- Social security / totalization
- Strong
- Tax authority support
- Member firms
What type of treaty adviser is this?
Grant Thornton publishes a global tax and mobility advisory network. The described work includes direct international tax, expatriate tax, double-tax analysis, foreign tax relief and cross-border compliance. Services are delivered by member firms and may need more than one firm. This is not an affiliate filing product.
A provider’s geographic network does not necessarily mean every office handles the same treaty issues.
Who it may suit
Grant Thornton may be relevant to International businesses and globally mobile individuals.
Which country pairs can the provider coordinate?
Published global reach: Very high.
Published reach is very high. Treaty services are delivered by member firms. Multi-jurisdiction capability — confirm the specific treaty and countries directly.
Treaty issues for individuals
Individual treaty analysis is published as strong.
Direct international tax, expatriate tax, double-tax analysis, foreign tax relief and cross-border compliance.
Treaty issues for businesses
Corporate treaty analysis is published as exceptional.
Treaty residence and tie-breakers
Treaty residence and tie-breaker work is published as strong.
The exact sequence and wording depends on the treaty.
Foreign tax credits and double-tax relief
Foreign tax credit and other relief work is published as strong.
WiT Access does not calculate relief or promise that foreign tax will be credited in full.
Employment and other income
Income and employment treaty issues are published as strong.
Estate and inheritance treaty issues
Estate and inheritance treaty issues are published as varying by member firm.
Social security and totalization agreements
Social security and totalization work is published as strong.
Social-security agreements are separate from income-tax treaties.
What if the tax authorities disagree?
Tax authority support is published as available through local member firms.
Published support is not a statement that the provider will act as your legal representative.
How treaty advice is priced
Pricing is set by the member firm. No fee is repeated on this page. Request a written scope and fee quote.
Questions to ask
These are questions for the provider. This page does not answer them.
Do you advise on the specific treaty between my two countries?
Ask Grant Thornton directly. The published material reviewed for this page does not answer this for your situation.
Do you analyse domestic law as well as the treaty?
Ask Grant Thornton directly. The published material reviewed for this page does not answer this for your situation.
Can you determine treaty residence?
Ask Grant Thornton directly. The published material reviewed for this page does not answer this for your situation.
Can you handle tie-breaker analysis?
Ask Grant Thornton directly. The published material reviewed for this page does not answer this for your situation.
Do you advise on foreign tax credits?
Ask Grant Thornton directly. The published material reviewed for this page does not answer this for your situation.
Can you review employment income under the treaty?
Ask Grant Thornton directly. The published material reviewed for this page does not answer this for your situation.
Can you advise on pensions?
Ask Grant Thornton directly. The published material reviewed for this page does not answer this for your situation.
Can you advise on investment income?
Ask Grant Thornton directly. The published material reviewed for this page does not answer this for your situation.
Do you support business treaty issues?
Ask Grant Thornton directly. The published material reviewed for this page does not answer this for your situation.
Can you advise on estate / inheritance treaty issues?
Ask Grant Thornton directly. The published material reviewed for this page does not answer this for your situation.
Do you handle totalization agreements?
Ask Grant Thornton directly. The published material reviewed for this page does not answer this for your situation.
Can you help obtain a tax-residence certificate?
Ask Grant Thornton directly. The published material reviewed for this page does not answer this for your situation.
Can you coordinate both jurisdictions?
Ask Grant Thornton directly. The published material reviewed for this page does not answer this for your situation.
Can you assist if the tax authority challenges the treaty treatment?
Ask Grant Thornton directly. The published material reviewed for this page does not answer this for your situation.
Which legal entity will advise me?
Ask Grant Thornton directly. The published material reviewed for this page does not answer this for your situation.
What will the engagement cost?
Ask Grant Thornton directly. The published material reviewed for this page does not answer this for your situation.
What documents do you need before advising?
Ask Grant Thornton directly. The published material reviewed for this page does not answer this for your situation.
Sources and review
Reviewed 7 October 2026.
- Service page
https://www.grantthornton.global/en/service/tax/
The provider’s published service description used for this page.
- Provider partnership page
https://www.grantthornton.global/
The provider’s own public page. It does not mean WiT Access has an agreement.
- Supporting public page
https://www.grantthornton.global/en/service/tax/global-mobility-services/
Further public material reviewed alongside the service page.
Information is based on publicly available provider information reviewed by WiT Access. Treaty wording, protocols, provider services and tax rules can change.
WiT Access provides general information and comparison resources. Treaty treatment depends on the relevant domestic laws, treaty wording, protocols, type of income and individual circumstances. Nothing on this page constitutes tax, legal, financial or investment advice.
WiT Access does not determine treaty residence, entitlement to treaty benefits or the amount of double-tax relief available.
A treaty may change taxing rights or provide relief without removing filing or reporting obligations.