Apostille vs. Embassy legalisation for Nepal
An apostille is not accepted for Nepal. Documents intended for use there need embassy legalisation instead, a longer route that adds a stop at Nepal's own diplomatic mission on top of the UK's own authentication step. Anyone assuming the two processes are interchangeable risks a document that a Nepalese office simply will not recognise.
The difference matters because an apostille and embassy legalisation solve the same underlying problem — proving a UK signature is genuine — through different machinery. An apostille works only between countries that share the Hague framework; without that shared framework, the receiving country's own mission has to check and stamp the document itself before it is accepted at home.
Nepal's Hague status & what it means
Nepal has not joined the Hague Convention, and that is the whole reason the apostille route is closed here. Joining is what lets two countries agree to trust one shared certificate; without it, each document still has to pass through the older bilateral chain that predates the Convention entirely.
Practically, this means a Nepalese ministry, court or employer has no apostille register to check against, so it relies instead on its own mission's stamp as proof the paperwork is genuine. Document legalisation for Nepal is therefore built around that mission's own procedures rather than the Hague format used elsewhere, and that difference shapes every later step of the route rather than only the final stamp on the page.
This is not a gap that closes with a faster courier or a more experienced sender: the missing piece is a shared agreement between the two governments, and no amount of UK paperwork substitutes for the mission's own check on the document once it reaches that later stage of the process.
The Reading → Nepal route step by step
The Reading side of the process still starts the same way as any other corridor: a civil record such as a birth or marriage certificate should be a fresh certified copy ordered from Reading Register Office, rather than the family's only original, and other paperwork travels as signed.
From there the document goes to the FCDO Legalisation Office by post, where the UK side authenticates the signature or seal on the page. Because an apostille from United Kingdom to Nepal is not the applicable format, that step produces a UK authentication rather than a Hague-format apostille, and the document then still needs Nepal's own mission to add its legalisation before the paperwork is complete.
Cost & timing for this route
On the UK side, the standard fee is £45 per document with turnaround up to 25 working days plus postage; a registered business can instead choose the express next-working-day service at £40 per document, which is both quicker and cheaper on that side of the process alone.
The mission's own legalisation stage runs to a separate schedule and its own fee, set by Nepal rather than by the UK authority, so the total cost and total wait for a document travelling this route is the UK stage plus that further mission stage stacked one after the other rather than run in parallel.
Destination-specific requirements
What you need for an apostille for Nepal is, in a sense, a trick question: the paperwork needed is for legalisation, not an apostille, and starts with the same UK-authenticated document plus whatever supporting papers Nepal's own mission asks applicants to attach at its stage of the process.
Whether the underlying document also needs notarising before the UK authentication step depends on the document type and on Nepal's own requirements, so that step is not identical for every applicant. A document written only in English may also need translating before a Nepalese office will read it, since the receiving authority works in Nepali rather than English for most official records.
Because two separate authorities are involved, a sender from Reading should expect this corridor to take noticeably longer overall than a route where an apostille alone finishes the job. Building extra time into any Nepal deadline, on top of the UK-side turnaround already quoted above, keeps the later mission stage from becoming the surprise that delays the whole application.