 Beaumont sat as a member of parliament (MP) for Leicestershire between 1654 and 1659 and was High Sheriff of Leicestershire between 1668 and 1669.On 5 March 1658, he was created a baronet, of Stoughton Grange, in the County of Leicester by the Lord Protector Oliver Cromwell.After the Restoration however this creation was declared invalid and Beaumont received a new patent, dated on 21 February 1661.