Embassy legalisation for use in Taiwan
A paper written in Britain carries no standing in Taiwan by itself. Consular legalization for Taiwan is what gives it standing: a chain of marks, each certifying the last, ending at the office that acts for Taiwan in London. The page itself is never rewritten. What grows around it is the trail of signatures attached to the back.
What the Taiwan side looks at
The last desk is the strict one. It checks that the FCDO certificate is genuine, that names agree across every page, and that the file is whole. Embassy attestation for Taiwan is refused for small things: one page missing, a name spelled two ways, a staple pulled out and put back wrong. Hand it over as a single clean set and it moves.
The London to Taiwan route step by step
Stage one is the notary, who signs and seals the page. Stage two is the FCDO Legalisation Office, PO Box 6255, Milton Keynes MK10 1XX, which certifies the notary's signature by post. Stage three is the Taiwan stage here in London. To legalize documents for Taiwan you run those three in order, never side by side, because each one needs the mark of the last.
Cost and timing for this route
Two clocks and three bills. The British certificate is about £45 per document and runs to a steady postal rhythm. The consular fee belongs to the Taiwan side and moves on its own. Standard work is 7–10 business days; the express route is 2–3 business days. Notary charges sit outside both figures, and vary with how many pages need a seal.
Practical points for Taiwan
Document legalization for Taiwan is usually wanted for study, marriage or work. Those files travel in sets rather than singly: a degree with its transcript, a birth entry with a passport page. Keep the set together from the first stage onward. A page added halfway through the chain has to begin again at the notary, which costs a full round of the whole route.