The consumer price index has remained unchanged since December, without a rise in prices in January ahead of Tet, the General Statistics Office of Vietnam reported Sunday.
Compared to January last year when prices declined marginally for the first time in a decade, it increased by 0.8 percent, the office said.
A sharp fall of 2.82 percent in transport prices caused by cheaper fuel set off increases of 0.25-0.89 percent in nine other items in the CPI basket such as food and dining services, apparel and education, according to the office.
Post and telecom was the other item to fall, albeit by a marginal 0.06 percent.
Three cuts in gasoline retail prices in the past month reduced fuel prices by 6.44 percent month-on-month, according to the report.
Vietnam's inflation was at a record low of 0.63 percent last year, but is expected to rise to 5 percent this year.