E-visa fees are not one price. They are diplomacy, priced per passport.
Turkey is the clearest example. A Mexican passport pays $20. An American pays about $50. A Canadian pays close to $70. Same website, same visa, different price, because fees follow bilateral agreements and reciprocity.
Vietnam keeps it simple: $25 for single entry, $50 for multiple entry, every nationality, 90 days. India varies by season and type: US citizens pay $10 for a 30-day e-visa in the April to June window, $25 from July to March, $40 for one year, and $160 for five years. Sources: U.S. State Department, Indian Visa Online Three rules. First, the fee is set by your passport, not your residence. Second, third-party sites routinely charge $80 to $200 for Vietnam's $25 visa, adding nothing. Third, beware evisa express upsells: the fee is set by the government, and no filing service can speed up the immigration department. Fourth, no government refunds the fee if you are rejected, so double-check the form before you pay.
E-visa costs change by nationality; express processing costs more but buys certainty when dates are fixed.