The Money Brief #23 - 21 September 2026

Washington raised interest rates on Wednesday. Tokyo raised on Friday. Frankfurt raised the week before. London looked at the same oil price, the same inflation, and sat on its hands. That should have been the calm week. It was not: the average five-year mortgage rate hit its highest since the mini-Budget, the best one-year savings rate touched 5%, the state pension quietly crossed into taxable territory, and three separate forecasters now have January's energy bills somewhere between 9% and 25% higher. Grab your Monday coffee. Let me translate.

Here is the scoreboard for the week, because for once the interesting number is the one that did not move.

The three that moved. The Fed made its first increase in more than three years, unanimously, and signalled one more this year; US inflation is running at 3.4%. The Bank of Japan took its rate to the highest since 1995, citing oil and a weak yen. The ECB had already gone the week before. All three named the same cause: energy.

The one that did not. Six of the nine members of the Bank of England's rate-setting committee voted to leave Bank Rate at 3.75% for a sixth meeting running. Three (Megan Greene, Catherine Mann and Huw Pill) wanted 4%. Governor Andrew Bailey's reasoning was that the energy shock has so far had a "quite subdued" effect on wider UK prices, with little sign of it feeding into wages, and that the economy is soft enough to wait. He added the caveat himself: the longer the volatility lasts, the more likely a rise becomes. Next decision: 5 November, three weeks after the Budget.

The quieter decision that matters more. The same meeting rewrote how the Bank unwinds the roughly £488 billion of government bonds it still holds from the crisis years (a process called quantitative tightening, or QT, explained properly in One Thing To Know below). The pace of unwind drops to an average of £46 billion a year through to 2034, from £87.5 billion a year over the past four. Within that, active sales into the market fall from £32 billion to £20 billion a year, and all sales are paused until April 2027 while the Bank talks to the Treasury about a gentler way of doing them.

Why that reaches you: the Bank has been one of the biggest sellers of gilts for four years, and its own research suggests that selling has added something like 0.2 to 0.4 percentage points to UK borrowing costs. Take the seller away and the market noticed within the hour. The 10-year gilt yield fell from about 5.31% to 5.22% on Thursday and settled at 5.28% by Friday’s close and the 30-year from 5.86% to 5.75%. Those are the yields that swap rates, and therefore fixed mortgage rates, are built on. Put simply: the Bank did not cut rates, but it did stop leaning on the bond market, and that is a form of help for anyone whose fix ends next year.

What it means for you. Three of the four big central banks now think the oil shock is an inflation problem. Ours thinks it might not be, yet. If it is right, UK fixed rates could ease as the QT change works through. If it is wrong, November is the date. Either way, this is the first week since the war began where the pressure on gilts came off rather than on, and that is worth knowing before you read the mortgage section, because it will not sound like it.

Sources: Bank of England (17 September 2026); Federal Reserve (16 September 2026); Bank of Japan (18 September 2026); European Central Bank (10 September 2026); Trading Economics (18 September 2026).

The lender repricing we flagged last week kept going. By Friday the picture from Moneyfacts, which tracks every deal on the market, was this:

An example. On a £200,000 repayment mortgage over 25 years, a five-year fix at 5.88% costs about £1,274 a month. Five years ago, in September 2021, the average five-year fix was 2.63%, which on the same loan is about £910. That £364 a month gap is what someone coming off a 2021 fix this autumn is walking into, and Moneyfacts' Rachel Springall says the pain shows no sign of easing for those who cannot yet lock in a new deal.

The mechanism is the one we covered in #17 and #22, so we will not re-run it: fixes are priced off swap rates, which follow gilts, and swaps were near 30-day highs when lenders repriced. What is new this week is the second half of the Big Story. Thursday's QT change pulled gilt yields down after most of these hikes were set. Springall's own reading is that more rises could come if lenders have not yet caught up with swaps; the counter-reading is that swaps have now eased and lenders reprice both ways. We are giving you both because both are live.

The mirror image. Every mechanism that makes a mortgage dearer makes a fixed savings bond pay more, and it is happening:

For context, August inflation was 3.1%, so a 5% fixed bond currently beats inflation by nearly two points before tax. Savings interest above your Personal Savings Allowance (£1,000 a year for basic-rate taxpayers, £500 for higher-rate) is taxable; a cash ISA is not. That is a description of the rules, not a steer.

What it means for you. If your fix ends in the next six months, the rate you are offered is being set by a bond market that just had its first good week in a while; brokers typically let you secure an offer and switch if a better one appears before completion. If you have cash sitting in an easy-access account paying under 3%, the gap to a fixed bond is the widest it has been in two years. MoneyHelper covers both for free.

Sources: Moneyfacts (18 September 2026); Moneyfacts UK Savings Trends Treasury Report (September 2026); Bank of England (17 September 2026).

Our regular Spotlight: the big markets across the timeframes that matter, because the timeframe you choose decides the story you tell. Figures are as at Friday's close. "This year" means since the first trading day of January. The five-year column is rolling: it compares Friday with the same week five years earlier, so it moves with the calendar. Oil keeps its seat after the week it just had, and the pound joins as this week's guest, twice, because after leaving the EU the euro rate matters as much to a British holiday budget as the dollar does.

*Bitcoin at Friday close. Gilt moves are in percentage points (pp), not percent. Euro row is the pound-dollar rate divided by the euro-dollar rate.

Three lines deserve a sentence. The FTSE clawed back last week's fall, ending the week up 0.5% and flat on the month, helped by the gilt rally on Thursday; UK shares like falling yields. Gold fell 3% on the month, its weakest stretch since the spring, as the three rate rises made holding a metal that pays no interest a little less attractive; it is still up 1% this year. And the pound had its worst week in a while against the dollar, down 1.4%, which is what happens when the Fed raises and the Bank of England does not: money tends to follow the higher rate. That is the currency link we explained in #22, happening in real time. Sterling was flat against the euro: the ECB raised too, and Bank Rate is still well above the eurozone's, so there was no reason for money to move.

And the five-year column, for perspective. Silver has nearly tripled and gold has risen two-and-a-half times since September 2021; the S&P 500 is up 71% and the FTSE 51%; Bitcoin is up 86% despite being down 9% this year. The pound buys 2% fewer dollars than it did five years ago and exactly the same number of euros. The line that matters most for mortgages is the gilt: 10-year yields are 4.38 percentage points higher than five years ago, which is the whole story of why a 2021 fix and a 2026 fix look so different.

The pension angle is the state pension, and it is an odd one. Tuesday's ONS figures put annual wage growth at 3.9% for May to July, which under the triple lock (the rule that the state pension rises each April by the highest of wage growth, inflation or 2.5%) is the number that sets next April's increase unless September's inflation figure beats it. On that basis the full new state pension rises by about £9.40 a week to £250.70, or £13,036 a year. The catch: the personal allowance, the amount anyone can earn before paying income tax, is frozen at £12,570. So for the first time, the full state pension on its own is more than the tax-free allowance. A pensioner with no other income would owe tax on the difference, about £93 a year. The IFS notes the government has not yet said how it will handle that. The old basic state pension rises to about £192.10 a week.

What it means for you. If you are retired, the rise is real and larger than inflation. If you are working, the triple lock is now one of the biggest lines in the Budget on 28 October, and the Chancellor has ruled nothing in or out. As always with the Spotlight: a picture, not a nudge, and past performance guarantees nothing.

Sources: Trading Economics (18 September 2026); Office for National Statistics (15 September 2026); Institute for Fiscal Studies (17 September 2026).

Crypto had a proper week, and the shape of it tells you more than the end point. Here is the path Bitcoin took:

So the "why" is not one thing. The vote hurt, the ETF money left, then the wider market turned risk-on and the money returned, helped by traders who had bet on further falls being forced to buy back. CoinShares' James Butterfill has made the point that recent Bitcoin moves have been driven more by the wider economy than by anything crypto-specific, and this week fits that.

A sense of scale. Bitcoin is worth about $1.6 trillion in total, and the whole crypto market trades around $92 billion a day. The US spot ETFs hold roughly $103 billion of Bitcoin between them, around 6% of all the Bitcoin there is, and the $746 million that left them over Monday and Tuesday is less than 1% of a single day's trading. So the flows did not move the price on their own; the wider market did that. The ETFs matter because they are the cleanest daily read on what US institutional money is doing, which is why they get the headlines.

The rest of the market went with it. Over the past month, and this year:

Trading Economics, 18 September 2026.

The whole market is worth about $2.67 trillion. Every coin in the table is up double digits on the month and still down on the year. Both are true. Which one you quote is a choice.

On the bill. The Senate never actually voted on what was in it; it voted on whether to stop debating, and fell eleven short. Congress breaks for the November elections on 5 October, so the realistic view is that this is done for 2026. It is a setback, not a reversal: the US regulators had already started writing rules under their existing powers, and the UK's own process is unaffected. From 30 September, UK crypto firms can begin applying to the FCA for authorisation, which is the date that matters here.

Sources: Trading Economics (18 September 2026); SoSoValue and Farside Investors (17 and 18 September 2026); CoinDesk (15 September 2026); CoinShares; US Senate (15 September 2026); FCA

Inflation rose, but look at what did not. August CPI came in at 3.1%, up from 2.9%, the first reading above 3% since March. Almost all of the rise was motor fuel: petrol averaged 161.3p in August, up 9.1p in a single month, and fuel prices overall were up 23% on the year. Strip that out and the picture is calmer. Core inflation (everything except energy, food, alcohol and tobacco) was unchanged at 2.6%. Services inflation was unchanged at 3.4%. And food inflation was 1.3%, its lowest since September 2021. That split is why the Bank felt able to wait: the headline is being pushed up by one thing, and it is not the thing rate rises fix. Next release: 21 October, a week before the Budget.

Jobs. The number of people on company payrolls fell by 26,000 in August, after a revised 19,000 fall in July, the fastest rate of decline in nine months and worse than the 5,000 economists expected. The ONS cautions that these first estimates are often revised. Wage growth was 3.9%, still comfortably above inflation, which is the other reason the Bank held: pay is rising but not accelerating.

Food. Two facts that sound contradictory and are not. The ONS says food inflation is at a five-year low. The Food and Drink Federation says a £100 weekly shop from January 2020 costs £138.60 today and expects food inflation to climb back to nearly 4% by Christmas. The first is the speed prices are rising right now; the second is where they have got to and where the trade thinks they are going. We covered that distinction in our "falling inflation doesn't mean cheaper" explainer, and this is the live example.

Energy, and the three price tags. The current cap of £1,723 a year for a typical household starts 1 October. Ofgem announces January's cap on 25 November. Three credible forecasts exist for it, and they disagree, so here they all are:

Monthly figures are the annual cap divided by twelve. Winter usage is higher, so a January bill on a variable tariff typically runs above the monthly average; direct debit smooths it.

Why the gap? Cornwall's figure was published before the September gas spike; on Trading Economics' numbers, UK wholesale gas is up 27% in a month and 168% this year, and the Bank's projection was made with those prices in front of it. Cornwall updates its forecast through October and November. The honest range is £150 to £430 a year more from January, and the number will narrow as the wholesale price settles. For the year as a whole, the cap has gone £1,758 (Jan), £1,641 (Apr), £1,663 (Jul), £1,723 (Oct), and then whichever of these lands.

Housing and the tax debate. Barratt Redrow, the country's biggest housebuilder, cut its target for next year to 17,500 to 17,900 homes from 17,700 to 18,200, blaming planning delays and buyers made cautious by higher mortgage rates since the war began. Its profit still rose sharply to £363.5 million, and its shares rose on the day. Chair Caroline Silver said planning reform alone "will not be enough" and called for action on regulatory and tax burdens and support for first-time buyers, a message echoed by Bellway. The government says the 1.5 million homes target stands but has a "slim chance" of being met. We report the ask and the numbers; the Budget on 28 October is where it gets answered.

What it means for you. A petrol tank, a food shop and a winter energy bill are all going one way, and your pay is rising slower than two of them. If that is a squeeze, the help is free and it is not a last resort: StepChange and Citizens Advice for budgeting and debt, MoneyHelper for the numbers, the Priority Services Register if you are vulnerable and worried about winter energy, and your supplier's hardship fund, which most of the big ones run.

Sources: Office for National Statistics (15 and 16 September 2026); Food and Drink Federation (9 September 2026); Ofgem (26 August 2026); Cornwall Insight (26 August 2026); Bank of England (17 September 2026); MoneySavingExpert; Trading Economics (18 September 2026); Barratt Redrow (16 September 2026).

Thursday's quieter decision was about quantitative tightening. To understand it you need its opposite, so here are both, in plain English.

Quantitative easing (QE) is the Bank of England creating new money and using it to buy government bonds (gilts) from banks, pension funds and insurers. The Bank ends up holding the bonds; the sellers end up holding cash. That does two things. It pushes the price of gilts up and their yield (the interest rate on them) down, which drags down every borrowing cost built on gilts, including fixed mortgages. And it leaves the financial system with more cash to lend and invest. Put simply: QE is the Bank pressing borrowing costs down when its main tool, Bank Rate, is already at the floor.

Quantitative tightening (QT) is the reverse. The Bank stops replacing bonds as they mature and, in the UK's case, actively sells some back into the market. The cash comes back out of the system and the Bank's pile shrinks. More gilts for sale means lower prices and higher yields, all else equal. QT is the Bank quietly nudging borrowing costs up, on top of whatever it does with Bank Rate.

When the UK has used each, and what was going on:

Round figures, Bank of England. The pile is the Asset Purchase Facility; the peak includes £20bn of corporate bonds.

Read down the columns and the pattern is clear. QE happens when inflation is low or falling, Bank Rate is already near zero, and something has gone wrong: a crash, a referendum, a pandemic. QT happens when inflation is high, Bank Rate is rising or high, and the Bank wants both tools pulling the same way. The odd one out is September 2022, when the Bank bought bonds for two weeks in the middle of a tightening cycle because the gilt market was breaking, which tells you the tools are about market function as well as inflation.

Three things about it people rarely say plainly.

Why it matters to you. For 13 years the Bank was a buyer of gilts, and for four it has been a seller. Thursday made it a much smaller seller. If you are on a fix that ends in 2027, that is a quiet tailwind. If you are a taxpayer, it is a bill that arrives whatever the Bank does. Both are worth knowing, and neither is on the front page.

Sources: Bank of England (17 September 2026); Bank of England Asset Purchase Facility reports; Office for National Statistics.

That is your five minutes on the week three central banks moved and ours found a quieter lever instead.

If someone you know is coming off a 2021 fix this autumn, forward them the mortgage section. The £364 a month is easier to hear from a friend than from a lender.

The diary:

Look after your money. It is on your side more than you think.

Follow us across social media between briefs for mid-week updates and the data points worth knowing. Click the links below to be directed to our pages:

Thank you,

Ellis

themoneybrief.co.uk

The Money Brief. Not financial advice. The Money Brief provides news and commentary for informational purposes only. We are not FCA-regulated. Crypto and investments can go down as well as up. Always consult a qualified adviser before making financial decisions.

© The Money Brief 2026. All rights reserved.