Chancellor Gordon Brown's budget revealed plans for the Inland Revenue to accelerate the removal of tax obstacles to people investing in Lloyd's.
The changes will allow Names - individuals who have backed the market - to offset past losses against profits when they convert from unlimited to limited liability.
Deloitte & Touche tax partner Jonathan Rice said: "This is a positive sign and will encourage members to continue to invest in Lloyd's."
The move is aimed at preventing a repeat of the catastrophe in the late 1980s when thousands of Names were forced into bankruptcy after a series of heavy claims.
