Breakeven rate meaning

Breakeven rate describes the market-implied inflation over a given term: the difference between the nominal yield on a conventional bond and the real yield on an index-linked bond of the same issuer and maturity. In the UK this is typically calculated using gilts and index-linked gilts (historically RPI-linked). It is a descriptive market term, not defined in legislation or case law, but widely used in finance documents, prospectuses and expert evidence to indicate inflation expectations and to benchmark pricing of inflation-linked instruments and swaps. Key points for lawyers: the breakeven depends on the index used (RPI vs CPI/CPIH), relative liquidity and risk premia, so it is not a statutory measure of inflation or a forecast. It is often cited when advising on disclosure of inflation risk, negotiating inflation-linked payment provisions (for example in project finance, leases and concessions), pensions funding and valuation work, and damages assessments. Usage is consistent across England & Wales, Scotland and Northern Ireland. In Ireland, where there are no domestic index-linked government bonds, practitioners typically reference euro-area inflation-linked benchmarks of similar maturity to Irish government bonds or relevant corporates when deriving a breakeven rate.