12 to 6 months before departure: strategic planning phase
The planning phase establishes the foundation for everything that follows. During this period, finalize your visa strategy (Golden Visa, D7, or D8 Digital Nomad), engage a Portuguese immigration lawyer, and begin the document preparation process. If using the Golden Visa, execute the qualifying investment or donation and submit the AIMA application. If using the D7, compile passive income documentation and schedule the consular appointment. Initiate the FBI background check immediately — at 10 to 16 weeks for processing and apostille, it is the single longest dependency in the document chain.
Begin state tax exit planning if you reside in a high-tax jurisdiction. California, New York, and New Jersey have aggressive residency audit programs, and establishing a clean break requires changing voter registration, transferring your driver's license, notifying your employer, and documenting the domicile change. If you will realize capital gains from liquidating investments to fund the move, the timing of those sales relative to your state exit date can save $30,000 to $70,000 or more. Coordinate with a CPA experienced in international and state tax planning.
Research schools if you have children. International school enrollment in Lisbon, Cascais, and Porto requires 6 to 12 months of lead time for popular schools. Request application packets, schedule school visits during your next trip to Portugal, and understand the curriculum options (IB, British, American AP). For younger children considering Portuguese public schools, research the Portuguese language immersion timeline and locate schools with experience integrating non-Portuguese-speaking students.