The consumer price index (CPI) increased 18.8% year-on-year in April, following a 15.2% rise in March.
Inflation was 1.9% a year ago. Cost of goods grew 14.4% annually and that of services gained 27.8% in April.
Price changes of food and non-alcoholic beverages and the price changes of transport both accounted for nearly a fifth of the total increase, the Tallinn-based agency said.
Housing costs increased 59.7% yearly in April and prices for transport rose 24.2%. Prices for food and non-alcoholic beverages, and education grew by 14.6% and 19.8%, respectively.
On a monthly basis, consumer prices rose 3.6% in April, following a 2.7% growth in the prior month.