£137bn of interest, before any decisions | The MJBurrows Briefing - Issue No 30


ISSUE NO. 30 · MONDAY 14 SEPTEMBER 2026

More than £137bn of debt interest in 2030, a five-year fix at 5.68%, and 4,000 jobs going at Jaguar Land Rover

Britain will spend more than £137bn servicing its debt in 2030, and that was settled before the Chancellor writes a word of his first Budget. The room to argue closed all week, down to £11.5bn.

The pattern ran through everything: prices set by people who do not attend meetings. Five lenders raised fixed rates before the Bank of England had met. Jaguar Land Rover cut 4,000 jobs while ministers ruled out a bailout.

Below: a record borrowing cost against a Budget nobody has written, why mortgages moved early, and what those job cuts buy — then the numbers, the week ahead, one calculator, and everything else from the week in one list.

Lead

The Debt Management Office is marketing a 30-year bond at the steepest yield on any new debt since it opened in 1998.

A global bond rout hit the UK harder than anywhere, and the bill lands on a Budget that has not happened yet. Debt interest is projected to top £137bn in 2030 whatever the Chancellor decides in October, which makes it the one line he cannot negotiate. He can change who pays, and when. That space keeps closing: headroom against the fiscal rules has fallen from £23.6bn at the Spring Statement to as little as £11.5bn on RSM’s estimate. Watch the headroom, not the yield. Read the full story →

 

The Numbers

Eight numbers, as every Monday. Friday’s closes are settled and both indexes finished up. Pay is still ahead of prices. The gilt line is August’s monthly average, a month behind and labelled so.

Bank Rate
3.75%
Unchanged since 18 Dec
 
Next decision
Thursday 17 Sep
CPI inflation
2.9%
July · ▲ 0.3 on June
 
Above the 2% target by
0.9 points
10-year gilt
5.05%
August average · ▼ 0.05 on July
 
A year earlier
4.77%
Average weekly pay
£755
June · ▲ 4.1% on the year
 
Real pay, after CPI
▲ 1.5%
FTSE 100
10,650.40
▲ 0.39% · Fri 11 Sep close
   
85% of 12-mth range · 9,196–10,911
FTSE 250
23,975.70
▲ 0.38% · Fri 11 Sep close
   
76% of 12-mth range · 20,955–24,939
Unemployment
4.9%
May · unchanged on the month
 
Next reading
Tuesday 15 Sep
Petrol
159.9p
Week of 3 August · ▲ 3.8p
 
A year earlier
134.4p
 

More News

Five lenders repriced to open the week, taking the average five-year fix to 5.68 per cent — its highest since 11 May.

The step is small, up from 5.64 per cent. The timing is the story. Barclays added nearly 0.2 percentage points, taking its two-year fix to 5.53 per cent; TSB put 0.15 across its range. All of it happened with Bank Rate still at 3.75 per cent and the Monetary Policy Committee not due to meet until Thursday. Lenders do not wait for the Bank — they price off the swap market, and it had already decided. Read the full story →

 

Jaguar Land Rover is cutting 4,000 jobs by voluntary redundancy, and the business secretary has ruled out a bailout.

Pre-tax profit fell by more than two thirds to £109m as revenue dropped nearly a tenth in the three months to June, with North America — 29 per cent of sales — squeezed by US tariffs. The cuts sit inside £1.7bn of savings targeted over two years. Jonathan Reynolds chose co-investment over rescue, which is defensible and also cheaper. A carmaker shrinking to protect its margin is ordinary. A government deciding that is acceptable is the newer part. Read the full story →

 

The Brief

Everything else published last week, newest first.

 
In plain English
Fiscal headroom
The room a Chancellor has left between his spending plans and the limit his own fiscal rules impose. Rising debt interest has cut Britain’s to as little as £11.5bn, which is why every Budget rumour this autumn is about finding money rather than spending it.
 
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The Week Ahead

  • Tuesday, 7.00am BST — UK Labour Market, September. The unemployment card above is May’s and has not moved in a year.
  • Wednesday, 7.00am BST — Consumer price inflation, August. The first move on 2.9%, and the last hard number before the Bank decides.
  • Thursday — the Bank of England decision on Bank Rate. Lenders have already repriced; the interest is the vote split.

The Toolbox

One tool from the site each issue, picked to fit what has just happened. Free, no sign-up, and it shows its workings.

Bank of England rate impact calculator

“The Bank meets on Thursday and the market moved without it. This works out what a change in Bank Rate — or none at all — does to your monthly payment.”

See all the calculators

The Close

The people with the formal power to set a price were, all week, the last to use it. The Bank meets on Thursday, after lenders have repriced. The Chancellor writes a Budget in October, after the bond market has told him what it costs. Watch Thursday not for the decision, but for how much of it already happened.

If something here is wrong, or there is something you want dug into, just reply. It comes straight to me.

MJB

 
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