Japan CPI: Transportation & communication

Last updated: Oct 9, 2026 11:17 UTC

Year-on-year (%)+2.3%August 2026

Month-on-month (%)+0.3%August 2026

Index (2025=100)103.1

Weight (per 10,000)1,444

Year-on-year change since 2021 (%)

Index level (2025 = 100)

Items in this category

Item	Index (2025=100)	Month-on-month (%)	Year-on-year (%)	Weight (per 10,000)
Public transportation	104.6	+1.8%	+2.4%	177
Railway fares (JR)	105.3	+1.6%	+3.7%	63
(ordinary fares)	104.7	0.0%	+4.4%	27
(special fares, excluding “Shinkansen”)	107.0	+8.6%	0.0%	6
(special fares, for “Shinkansen”)	102.6	+3.5%	0.0%	15
(students' season tickets)	102.9	0.0%	+2.6%	4
(commuters' season tickets)	110.0	0.0%	+9.5%	11
Railway fares (excluding JR)	101.4	+0.1%	+1.5%	42
(ordinary fares)	101.3	+0.1%	+1.3%	22
(students' season tickets)	98.9	+0.1%	-0.2%	4
(commuters' season tickets)	102.1	0.0%	+2.2%	16
Other public transportation	108.4	+4.4%	+2.6%	48
Fixed route bus fares	103.2	+0.1%	+2.7%	7
Expressway bus fares	101.8	+0.1%	+1.2%	5
Taxi fares	108.8	+0.1%	+8.9%	12
Airplane fares	111.3	+9.1%	0.0%	24
Highway tolls	100.7	0.0%	0.0%	24
National expressway tolls	101.0	0.0%	0.0%	18
City expressway tolls	100.0	0.0%	0.0%	6
Private transportation	101.8	+0.2%	+2.1%	928
Automobiles	101.3	+0.1%	+1.2%	266
Light motor vehicles (0.66L or less)	101.3	+0.2%	+1.0%	53
Small motor vehicles	100.7	+0.4%	+0.4%	47
Motor vehicles-A	102.1	0.0%	+2.1%	127
Motor vehicles-B	99.7	+0.2%	-0.5%	40
Bicycles	99.2	-1.1%	-0.8%	9
Bicycles-A	99.4	-1.0%	-0.9%	6
Bicycles-B	99.1	-1.2%	-0.5%	4
Automotive maintenance	102.1	+0.2%	+2.5%	652
Gasoline	96.4	+0.1%	-2.6%	195
Tires	100.8	-0.4%	+0.1%	45
Automobile batteries	100.6	+1.1%	+1.4%	11
Automobile navigations	114.5	+0.2%	+11.5%	12
Drive recorders	105.2	0.0%	+4.8%	4
Helmets	100.9	-0.2%	+1.3%	4
Automotive maintenance charges (regular inspections)	104.0	+0.3%	+4.3%	43
Automotive maintenance charges (puncture repairs)	103.7	0.0%	+4.2%	34
Motor oil replacement	118.5	+2.6%	+17.6%	24
Charges for garage rental	100.4	0.0%	+0.4%	33
Charges for parking	101.9	+0.1%	+1.7%	10
Charges for driving license	102.7	0.0%	0.0%	2
Charges for rental car	106.3	+3.8%	+0.2%	5
Car lease	103.5	+1.1%	+5.6%	6
Car wash fees	105.4	+0.1%	+5.8%	2
Road services	100.0	0.0%	0.0%	3
Automotive insurance premium (compulsion)	100.0	0.0%	0.0%	33
Automotive insurance premium (option)	105.2	0.0%	+5.9%	185
Communication	105.9	-0.3%	+2.9%	338
Postcards	100.0	0.0%	0.0%	1
Letters	100.0	0.0%	0.0%	3
Telephone charges (fixed-line phone)	102.9	0.0%	+2.1%	32
Telephone charges (mobile phone)	105.4	-1.9%	+1.6%	231
Forwarding charges	96.7	0.0%	-4.0%	13
Mobile phones	112.0	+6.1%	+10.2%	58

Other categories

Method

Year-on-year and month-on-month changes are computed from the published all-Japan indices (2020 base up to December 2025, 2025 base from January 2026) and rounded to one decimal; they can differ by about 0.1 point from the officially announced rates. Items that were added or discontinued at the 2025 rebasing have shorter histories. OECD figures are the annual growth rates published by the OECD.

About this page

In August 2026, prices for “Transportation & communication” were +2.3% compared with a year earlier.