Britain’s government is planning to ramp up public spending — but market watchers warn the proposals risk sending jitters through the bond market further inflating the country’s $143 billion-a-year interest payments.
U.K. Finance Minister Rachel Reeves on Wednesday announced the government would inject billions of pounds into defense, healthcare, infrastructure, and other areas of the economy, in the coming years. A day later, however, official data showed the U.K. economy shrank by a greater-than-expected 0.3% in April.
Funding public spending in the absence of a growing economy, leaves the government with two options: raise money through taxation, or take on more debt.
One way it can borrow is to issue bonds, known as gilts in the U.K., into the public market. By purchasing gilts, investors are essentially lending money to the government, with the yield on the bond representing the return the investor can expect to receive.
Gilt yields and prices move in opposite directions — so rising prices move yields lower, and vice versa. This year, gilt yields have seen volatile moves, with investors sensitive to geopolitical and macroeconomic instability.
The U.K. government’s long-term borrowing costs spiked to multi-decade highs in January, and the yield on 20-and 30-year gilts continues to hover firmly above 5%.
Official estimates show the government is expected to spend more than £105 billion ($142.9 billion) paying interest on its national debt in the 2025 fiscal year — £9.4 billion higher than at the the time of the Autumn budget last year — and £111 billion in annual interest in 2026.
The government did not say on Wednesday how its newly unveiled spending hikes will be funded, and did not respond to CNBC’s request for comment about where the money will come from. However, in her Autumn Budget last year, Reeves outlined plans to hike both taxes and borrowing. Following the budget, the finance minister pledged not to raise taxes again during the current Labour government’s term in office, saying that the government “won’t have to do a budget like this ever again.”
Andrew Goodwin, chief U.K. economist at Oxford Economics, said Britain’s government may be forced to go even further with its spending plans, with NATO poised to hike its defense spending target for member states to 5% of GDP, and once a U-turn on winter fuel payments for the elderly and other possible welfare reforms are factored in.
Additionally, Goodwin said, the U.K.’s Office for Budget Responsibility is likely to make “unfavorable revisions” to its economic forecasts in July, which would lead to lower tax receipts and higher borrowing.
“If recent movements in financial market pricing hold, debt servicing costs will be around £2.5bn ($3.4 billion) higher than they were at the time of the Spring Statement,” Goodwin warned in a note on Wednesday.