European shares are expected to close the year a touch higher than where they are currently trading, a Reuters poll found, as support from looser fiscal and monetary policy will be kept in check by uncertainties over Washington's import tariffs.

The EU-US trade agreement is poised to cut the US import tax on cars from the EU from 27.5% to 15%. However, details released Thursday reveal that the lower rate won’t take effect until the EU takes separate action to reduce its own tariffs on US goods.

The United States and the European Union on Thursday locked in a framework trade deal reached last month that includes a 15% U.S. tariff on most EU imports, including autos, pharmaceuticals, semiconductors and lumber.

European leaders joined Ukrainian President Volodymyr Zelenskyy in Washington on Monday in a rare display of unity to end the war with Russia.