You need 2 identical photos, taken in the last month. No glasses unless you have to wear them, and no sunglasses or tinted glasses. No head covering unless it is for religious or medical reasons. Keep a plain expression with your mouth closed.
Read from the official source: Get a passport photo: Rules for printed photos. Last checked 2026-10-10. Rules change between cycles, so compare with your own form.
More forms for United Kingdom: United Kingdom: UK passport (digital).
The form asks for 35 x 45 mm.
The form says: plain cream or light grey.
They were read from the official source, Get a passport photo: Rules for printed photos, last checked on 2026-10-10. Rules change, so compare with your own form.