A post worker shows the first Latvian stamps denominated in both lats and euros in Riga on January 30, 2013.

The European Commission will give Latvia on Wednesday the go-ahead to become the 18th member of the euro zone from the start of next year, European Union officials said on Monday.

The EU executive will publish a report on whether the small Baltic state meets all the criteria for membership of the single currency, which include low inflation and long-term interest rates, a stable exchange rate and low public debt and deficit.