He promised that, if he were returned to power, he would repeal the income-tax.
In the dispute with the American colonies his sympathies were with the latter, and in 1766 he carried the repeal of the Stamp Act.
Attempts to secure the repeal of this provision have been unsuccessful.
He took an active part in the Chartist agitation, but withdrew his support when the agitation for the repeal of the corn laws was removed from the Chartist programme.
Besides the realization of the formal programme of the Left, consisting of the repeal of the grist tax, the abolition of the forced currency, the extension of the suffrage and the development of the railway system Depretis laid the foundation for land tax re-assessment by introducing a new cadastral survey.