Rachel Reeves looks for extra headroom in budget to insulate UK economy against bond market

Chancellor hopes to raise enough funds to stop damaging speculation about breaching fiscal rules

• Rachel Reeves v the OBR: chancellor aims to loosen the watchdog's grip

Rachel Reeves is aiming to create more headroom" against her fiscal rules in November's tax-raising budget, to cushion the UK against volatile government bond markets.

The chancellor met her first rule - to balance taxes and day-to-day spending - with 10bn to spare in last autumn's budget, and again at her March spring statement.