What happens if an IFICI tax incentive beneficiary's income or professional status changes during the 10-year period?

Any change in professional activity could impact eligibility for the IFICI tax incentive. These changes must be reported by January 15 of the following year, along with supporting documentation. This is extremely important since the right to be taxed under the terms of this regime, in each year of the mentioned 10-year period, depends on the taxpayer being deemed as a tax resident in Portuguese territory, at any time during that year and continuing to earn, each year, income derived from the exercise of one of the specific activities listed.