The UK Debt Management Office sold £900m of the 1⅞% Index-linked Treasury Gilt 2049 on 3 September 2026, took £3,220m of bids for a cover of 3.58 times, and struck a real yield of 2.496% 1.
Striking the line at 2.496% commits the government to that return above whatever inflation does between now and 2049, because an index-linked gilt pays out more as prices rise and a real yield is what a lender earns on top of inflation rather than including it. The taxpayer funds that protection for twenty-three years, until the line matures in 2049.
Roughly a quarter of the outstanding gilt stock moves with prices , so inflation lifts the payments on lines like this one instead of eroding them. A government whose debt is fixed in cash can let inflation shrink the real burden of it. Britain can do that to about three quarters of the stock, and each index-linked sale adds a little to the quarter where the trick does not work.
