It costs $7,500 for an investor to undergo a due diligence check. The same amount will need to be paid for a spouse or civil partner. The main applicant will pay $4,000 for each additional adult on their application. For a child aged 12-17 years old, the island authorities will charge $2,000 for a due diligence check. Children under the age of 12 do not have to undergo a due diligence check.