A second nationality is a distinct decision with lasting responsibilities.
Consider citizenship by descent, family connections, ordinary naturalisation and, where currently available, citizenship by investment. Each route has its own evidence, residence, language and suitability requirements.
An investment residence permit is not a passport. Naturalisation is not guaranteed, and a second citizenship does not by itself end UK tax exposure. Check dual-nationality rules and practical travel rights before relying on an outcome.
Grenada is relevant to families comparing a second nationality through a contribution or approved investment. Its official programme provides a defined application process and mandatory interview. It should be assessed for the rights it adds to an existing passport, alongside a separate review of tax residence and income sources.
Saint Kitts and Nevis combines an established citizenship programme with the absence of individual income tax described by its revenue authority. A citizenship application still requires due diligence, an interview and approval. Holding the passport does not establish tax residence or remove continuing UK tax liabilities.
Türkiye combines an exceptional citizenship route with a separate tax incentive for qualifying new residents introduced in 2026. Property investment can support an application, while the tax benefit requires its own eligibility review and exemption certificate. Neither approval should be assumed from the other.