Dates

Two kinds of date matter for a trip to Japan, and they are worth separating.

Dates the country takes off

Public holidays, and the three periods when everyone travels at once. Two of the three are built from public holidays; Obon contains none at all, which is why a holiday calendar alone will mislead you about August. Check your dates

Dates the rules change

Japanese rules take effect on fixed days, and several land inside one eighteen-month window. If your trip straddles one of these, the answer to "what does this cost" is different on either side.

DateWhat changes
1 Jul 2026The departure tax tripled to ¥3,000. Tickets issued earlier keep ¥1,000
1 Oct 2026Rail pass prices rise at overseas agencies — but not on the official site
1 Nov 2026Tax-free shopping becomes a refund confirmed by customs at departure
1 Apr 2027Tokyo's lodging tax becomes a flat 3%

Every calculator on this site takes your date and applies the rule that was in force on it, rather than describing "the current system". That is the whole reason the tools exist as tools.