UK autumn budget tests Healey as gilt markets seek fiscal reassurance

Today, Chancellor Healey faces a difficult challenge. She must present a budget that satisfies families, supports businesses, and reassures bond markets, all while proving the government is not short of funds. That is a demanding task.

This autumn budget is Healey's first and requires careful balancing. High borrowing costs and limited fiscal headroom constrain his options.

What measures can Healey realistically announce, and crucially for markets, who will bear the cost?

Here are some key proposals to anticipate:

• Bank tax hike: Possible reversal of the bank surcharge reduction from 8% to 3%, potentially generating more than £2 billion each year
• Online marketplace taxes: Platforms such as Amazon and eBay may be required to collect VAT from additional UK sellers, which could raise £1 billion to finance business rates relief for smaller retailers
• Energy bill relief: More than £1 billion in aid for lower-income households, which may include a £100 top-up to the current £150 Warm Home Discount
• Fuel duty freeze: Further extension appears probable, but it could cost the government as much as £2.7 billion per year
• Housing support: A planned 20% equity loan for first-time buyers of new-build properties, with deposits as low as 2.5%

That is a substantial list of proposals for a chancellor with narrow fiscal space.

Healey's room for manoeuvre is limited by the government's already strained fiscal position, with headroom potentially halved to £12 billion from £24 billion due to rising borrowing costs. Gilt traders will scrutinise the details closely.

Beyond the announcements, the Office for Budget Responsibility's forecasts and borrowing estimates may be more significant than the spending headlines. A credible fiscal strategy could ease gilt yields, especially on longer-dated bonds. But any hint of unfunded expenditure might trigger another bond market sell-off, which would be unwelcome.

When the budget is announced later (expected at 1230 GMT), attention should be on how energy relief policies affect inflation expectations and, subsequently, Bank of England rate hike pricing.

For Healey, a dull budget could be politically beneficial. Whether markets share that view remains uncertain.