E-gates are in operation at Lisbon, Faro, Porto and Funchal (Madeira) airports for use by British and some other non-EU passport holders. These e-gates are separate to the e-gates for EU/EEA/Swiss citizens. On arrival or departure, check you are eligible to use the e-gates and that you are in the right queue. When using an e-gate, your entry/exit is recorded on the computer system. A border officer may also stamp your passport after you have passed through the e-gate; this is for airport operational reasons.
If you use a manned booth, check that your passport is stamped by the border officer when you enter or exit as a visitor.
Check your passport is stamped by the border officer when you enter and exit Portugal as a visitor.
You can use the manned staffed immigration booths or, if you are aged 18 and over, the e-gates designated for UK and some other non-EU nationals. Hand your passport for stamping to the border officer after you have passed through the e-gate.
Border guards use passport stamps and e-gate records to check you’re complying with the 90-day visa-free limit for short stays in the Schengen area. If relevant entry or exit stamps are not in your passport or visible to a border officer on the computer system, a border officer will may presume that you have overstayed your visa-free limit.
If you are missing entry/exit stamps, you can show evidence of when and where you entered or exited the Schengen area and ask the border officer to add this date and location in your passport. Examples of acceptable evidence include boarding passes and tickets.