Certificates are issued, travel documents arrive, and the symbolic act of belonging to a new nation appears complete. Yet in reality, citizenship is not a finish line, it is the start of a new compliance journey.  From the very first ninety days to five years and beyond, new citizens face obligations that, if neglected, can expose them to penalties, reputational risks, and in some cases, even the revocation of their status. In 2025, these responsibilities will become more complex as jurisdictions tighten rules on due diligence, banking transparency, and investment holding periods. The First 90 Days: Laying a Compliance Foundation The earliest phase after naturalisation is often the most overlooked. Within three months, investors are typically required to finalise national registration procedures, which may include securing a tax or social security equivalent, completing ID enrolments, and in some jurisdictions, attending an oath or ceremony. These steps are not ceremonial alone, failure to complete them can delay access to healthcare, voting rights, or even banking services. Banks and custodians also demand immediate updates to records. Know-Your-Customer (KYC) frameworks require investors to declare their new nationality, re-submit certified documents, and ensure consistency across accounts. In parallel, global reporting frameworks such as the Common Reporting Standard (CRS) and the US-linked Foreign Account Tax Compliance Act (FATCA) may trigger fresh self-certifications.  The First Year: Settling into the Responsibilities of Citizenship Beyond the initial flurry of registrations, the first twelve months bring a deeper layer of obligations. Investors must be careful to distinguish between the rights conferred by citizenship and the separate concept of tax residency.  While a second citizenship can offer consular protection abroad or new entry channels at borders, it does not automatically alter worldwide income reporting obligations. Those who mistakenly treat citizenship as a substitute for tax residency risk falling foul of international regulators. The first year is also when most Citizenship by Investment (CBI) programmes enforce their investment-holding periods.  For example, real estate acquired under St. Kitts and Nevis or Antigua and Barbuda programmes must often be maintained for a minimum of five years before it can be resold. Property must also be correctly registered, with landholding caps observed in certain Caribbean states.  In countries like Malta, further enrolments, such as mandatory healthcare contributions or local insurance, may also arise. Dependants may need residency permits renewed annually until they are eligible for naturalisation in their own right. Years Two to Five: Renewals, Links, and Re-Checks Many citizenship certificates or travel documents carry five-year validity, requiring renewal by this stage. Several jurisdictions, particularly within the European Union, have reinforced “genuine link” requirements since 2023, meaning citizens by investment may be asked to demonstrate ties, whether through physical presence, property maintenance, or community engagement. In parallel, Citizenship by Investment Units (CIUs) in the Caribbean have stepped up continuous due diligence checks.  For instance, St. Kitts and Nevis CIU has established a Continuing International Due Diligence Unit to add another layer of integrity to the programme. This means that background re-screening is no longer a one-off event but can be revisited years later if new red flags surface.  Investors should also prepare for sanctions screening exposure, particularly if they operate businesses in sensitive regions. Inheritance and estate planning may also shift once a new nationality is secured, as succession laws differ sharply between civil and common law jurisdictions. Duties Adjacent to Immigration Citizenship also carries duties that, while not financial, remain legally binding. In some jurisdictions, naturalised citizens may still be called to jury service or must explicitly opt out of military obligations if carve-outs exist. Political participation is another sensitive area. While voting rights may be conferred, eligibility for office or campaign donations may be restricted for naturalised citizens. Dependants, especially children, often trigger further administrative steps. Enrolment in public education or healthcare systems may require proof of local address or insurance. It will also require residency permits may need to be extended until minors can naturalise. Certain CBI programmes have also introduced charitable pledges or community donations as part of ongoing national development schemes. Programme-Specific: Diverging Duties Across Jurisdictions Each investment migration programme carries its own post-approval landscape. In St. Kitts and Nevis, investors must hold real estate for five years. They may face periodic checks under the country’s strengthened 2023 due diligence rules. Dominica requires strict property maintenance and has introduced additional background re-verifications since 2024.  Antigua and Barbuda mandates annual visits during the first five years, reinforcing genuine link requirements. Saint Lucia enforces holding periods on its real estate options but offers flexibility on renewals of citizenship certificates. In Europe, Malta remains the strictest, demanding residence requirements and ongoing contributions to health and insurance schemes. Türkiye, while allowing relatively straightforward citizenship acquisition through real estate, monitors resale timelines closely and enforces repurchase restrictions. The UAE’s Golden Visa, though technically a residency-by-investment pathway, also imposes renewal fees, minimum property valuations, and active compliance with national ID systems. Risk and Enforcement Revocation of citizenship, once seen as a rare measure, has become more frequent in recent years. Grounds include fraudulent application data, criminal activity, failure to maintain qualifying investments, and exposure to international sanctions.  Cross-border information sharing through Interpol, EUROPOL, and tax exchange frameworks means that inconsistencies rarely go undetected. Misrepresentation can lead not only to the loss of citizenship but also to reputational and financial damage across jurisdictions.