Tax, spending and borrowing plans meet the gilt market.
The decision
HM Treasury has announced the Budget for 28 October.
Known baseline
The announced date is firm. Budget measures and their fiscal estimates must be assessed from the published documents, not inferred from the calendar.
How it reaches markets
More borrowing than expected can increase gilt supply and term premia. Measures that improve credible growth forecasts can offset part of that pressure.
What can limit the effect
Announcements still depend on legislation, delivery and the assumptions used in the fiscal forecast.
Scenarios to compare
GT Team analysis · outcomes relative to expectations
Borrowing above expectations
Higher funding needs may pressure gilts.
Evidence to checkCompare the revised financing remit with the preceding remit, in £bn.
Credible fiscal tightening
Lower funding needs may support gilts while weighing on domestic demand.
Evidence to checkSeparate tax receipts and spending changes from optimistic growth assumptions.
What would weaken the thesis
If issuance rises but gilt yields fall relative to comparable bonds, the supply-only explanation is incomplete.