In January 2013, the budget surplus was RON1 billion, or 0.17% of GDP.
The wider surplus was largely due to higher revenue from the value added tax rate and excises duties and lower expenditure with capital, the data showed.
Total revenue to the consolidated budget rose 10.2% on the year to RON17.6 billion in January, while overall expenses increased 7.8% to RON16.1 billion.
Romania targets a budget deficit of 2.2% of GDP in 2014, slightly narrower from 2.5% of GDP in the previous year.