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
Uganda is party to the 1949 Geneva Convention & 1968 Vienna Convention and Indonesia to the . They share none, so no treaty obliges Indonesia to recognize an International Driving Permit issued in Uganda.
Whether a permit is required alongside your national license is set by national road law, which we have not checked for this pair.
Passport validity — The UK government says your passport must have an expiry date at least 6 months after the date you arrive and at least 2 blank pages. The immigration directorate's visa-free page asks for a passport still valid for at least 6 months.
All Indonesia arrival card — The immigration e-Visa portal states that all travellers are required to submit an arrival card within 3 days before arriving in Indonesia. It is filed on the immigration authority's All Indonesia site (allindonesia.imigrasi.go.id).
Electronic Customs Declaration (e-CD) — Indonesian Customs says all passengers entering or leaving Indonesia must submit a digital customs declaration; it is free, and the QR code is scanned by officers at the terminal. Arrivals by air or sea file it through the All Indonesia service (allindonesia.imigrasi.go.id); arrivals by land use the customs e-CD site (ecd.beacukai.go.id).
No official source states a rule on: travel insurance.