Timeline
Apply within 2 weeks of citizenship ceremony. HM Passport Office processes in 4-6 weeks (standard). Expedited: 1-2 weeks (extra fee).
What You Need
Citizenship certificate (original), completed form, 2 passport photos, fee (£42.50 for adult). Online application available.
Where to Apply
Online (fastest): 4-6 weeks. Post office: 6-8 weeks + mail time. Passport office in person: available but must book online first.