Apostille vs. Embassy legalisation for Uganda
A treaty route is attractive partly because it is knowable: one office, one published charge, one certificate, and nothing waiting behind it. A consular route brings in a second government, and with it a set of costs and timings that no British page can quote. An apostille for Uganda would belong to the first kind, which is exactly why so much of this route resists a firm quotation.
Uganda's Hague status & what it means
Uganda has not joined the Hague Apostille Convention. That single fact is what moves this job from the predictable column into the partly predictable one, because the closing stage is then run by officials answering to another state. The requirement itself is not vague at all; what is vague is only the price and pace of the half that is not British.
The fixed half and the open half
Take the fixed half first, since it can be finished while the rest is still uncertain. One office issues the British certification for the whole country, it works by post, it has no counter to attend, and its charge is per document at a rate that does not change with the destination. Plymouth Register Office at Derriford Park supplies certified copies of civil records to feed it.
The open half is not a mystery so much as a variable. A second body applies its own charge and its own queue to each document, and neither is published here, so any total you calculate today is a floor rather than an estimate. The sensible response is to finish the fixed half early and let the variable one run against a generous window.
Cost & timing for this route
The British charge is £45 for each document by post at the Legalisation Office, or £40 for each on the next-day route open to registered businesses. No turnaround figure is given for it, and two postal legs sit either side. Document legalisation for Uganda then adds the consular charge and wait, unpublished here, which is why the honest planning unit for this route is a range.
Destination-specific requirements
Uganda expects consular legalisation, applied for in Britain after the British certification is done and in that order. Each document is charged and handled separately at both stages, so the count you send is the multiplier on both bills. Keep the originals at home, send certified copies where the paper allows it, and treat the earliest start date as the one real saving available.