Yes, if you are a non-EU national leaving Portugal in 2026, you must go through a high-value exit process as part of the European Entry/Exit System (EES). When departing the Schengen Area from an international hub like Lisbon or Porto, you will need to present your passport and have your fingerprints and photo taken at the border control desk. This automated system tracks the duration of your stay to ensure you have not exceeded the 90-day limit within 180 days. While there are no "customs" duties to pay when leaving, you may need to declare high-value goods or large sums of cash (over €10,000). For a premier, stress-free departure, arrive at the airport at least 3 hours early, as the new EES registration process can lead to high-intensity queues during peak travel months in the 2026 holiday season.