Social visit visa (through a Brunei mission abroad)20 BND
Total20 BND
Compulsory government charges only. Service fees and anything optional are excluded, which is what makes the figure comparable.
Yellow fever certificate
Arriving from Uganda, a yellow fever certificate is required: WHO lists Uganda as a transmission risk.
Driving on a Uganda license
Brunei and Uganda are both party to the 1949 Geneva Convention, so an International Driving Permit issued in Uganda is one Brunei is bound to recognize.
Whether a permit is required alongside your national license is set by national road law, which we have not checked for this pair.
Brunei E-Arrival Card — The UK government says you must submit an e-arrival declaration form to enter Brunei, before you travel, as it may be requested at check-in, and that you do not need to complete it if you are not passing through immigration. The US Department of State says all travellers are required to obtain an E-Arrival Card registration approval before arrival by air, land and sea, that no payment is required for the registration, and that transit travellers are exempted.
No official source states a rule on: proof of funds.