UK government borrowing costs seesaw as official economic forecasts released early
The Autumn Budget is due to be announced shortly.

TL;DR
- U.K. government borrowing costs fluctuated after the OBR unexpectedly released economic and fiscal forecasts before the Autumn Budget.
- The OBR cited a technical error for the premature release of its report, which has since been removed from its website.
- The leaked report detailed planned tax increases, including freezes on income tax thresholds, taxes on private pension contributions exceeding £2,000 annually, new mileage-based taxes on electric vehicles, and an annual tax on homes valued above £2 million.
- Taxes on dividends, property, and savings income are set to increase by 2 percentage points, expected to raise £2.1 billion.
- New spending policies, including the removal of the two-child limit on welfare, are projected to increase public borrowing by £7 billion next year and £11 billion by 2029-30.
- The OBR lowered its U.K. growth forecast to an average of 1.5% over the next five years due to lower underlying productivity growth.
- The British pound gained against the U.S. dollar and the euro as the budget was unveiled.
- Investors had expressed a desire for tax hikes and spending cuts from the government.
- The U.K. government currently faces the highest borrowing costs among G7 nations.
- Past unfunded tax cuts in 2022 led to a bond sell-off and the resignation of Prime Minister Liz Truss.