Belchier was a banker in Lombard Street: 1729-56 the firm was Belchier and Ironside, and in 1757 it became Ironside, Belchier, and How. In 1747 he was returned for Southwark after a contest, and was classed by Newcastle as a supporter of Administration. He also cultivated an interest at Winchelsea: he had lent money to John Caryll, a considerable landowner at Winchelsea, on the security of his estates, and in 1754, partly by purchase and partly by foreclosure, was trying to get possession of them.
His opposition, if it was serious, did not last long: in 1756 he applied through Henry Fox to be made banker to the commissioners for prizes,
In December 1760 he went bankrupt. To John Caryll on 13 Dec. he wrote:
The cruel and unexpected turn that has very lately befallen me in my fortune and credit has so far disabled me, that I cannot with honour and integrity appear in the character of a Member of Parliament as yet. I think it incumbent on me to give your Grace the earliest intelligence of my intention to decline being a candidate at the ensuing general election for Southwark ... I shall be glad to receive your commands to know whom I shall oblige with my interest in that place, which I flatter myself is not inconsiderable.
And again to Newcastle on 17 Sept. 1761:
Since the misfortune brought on me by the most unparalleled treachery of a partner, I would neither be in business or Parliament although I was offered both, until I had accomplished the desirable end of paying everyone his last shilling which I hope ere long to do. At present I have time on my hands and beg leave to tender my best services to your Grace in every assistance I am able, either in forming or the examination of plans for raising the supplies for the ensuing year; my friends also are desirous and will be ready to subscribe.
Apparently Newcastle did not accept this offer.
In 1765 he resumed business in Lombard Street, but by 1767 he was once more in financial difficulties.
