MINNETONKA, Minn. — UnitedHealth Group Inc. trimmed its profit outlook slightly for next year when the nation’s largest health insurer will face a reinstated federal health insurance tax.

The Minnetonka, Minnesota-based insurer said Monday that it expects to earn between $10 and $10.30 per share, or between $10.55 and $10.85 per share when one-time items are excluded.

Analysts were expecting, on average, adjusted earnings of $10.82 per share next year from UnitedHealth, according to FactSet. That would represent 8.3 percent growth from the average Wall Street forecast for 2017 earnings of $9.99 per share.

Analysts also forecast $219.06 billion in revenue next year. The company said it expects revenue between $223 billion and $225 billion next year.