Agents, renewals, accounting, an address and the paid-up capital nobody mentions. Configure once and every jurisdiction re-totals , twelve months out, not just day one.
Official fee schedules, standard professional rates and current market figures for office space. Realistic mid-range numbers , expect ±15 to 30% depending on your provider and circumstances.
A cheap jurisdiction with a punishing tax rate is not cheap. Run the same shortlist through the other tools before committing.