The Bank of England announces its interest rate decision at 12:00 GMT on 5 November. It is widely expected to raise Bank Rate to 4% from 3.75%, the first increase in more than three years1, 2. If confirmed, it joins a tightening cycle that already runs from Sydney to Mumbai. It also lands on a cost line buyers rarely separate out: the money tied up in stock and in supplier credit.

Australia's central bank lifted its cash rate to 4.85% on 3 November, an 18-year high and its fifth rise this year3. India's Monetary Policy Committee raised the repo rate to 5.50% from 5.25% at its 5 to 7 October meeting4. On 4 November, Bundesbank president Joachim Nagel said the European Central Bank would probably raise rates in December9.

An energy-led turn, not a demand boom

Energy is the common driver. UK consumer price inflation rose from 3.1% in August to 3.5% in September10. S&P Global's services index rose to an eight-month high of 52.8 in October, and input price inflation reached a five-month high10. Eurozone inflation hit 4% last month, up from 3.8%10.

Nagel said repeated energy spikes risk feeding into wages and other prices. "From today's perspective, however, there is likely no way around an interest-rate hike unless the inflation outlook improves significantly," he said in Berlin9.

Deutsche Bank told clients that money market pricing put a 98% chance on a UK rise on 5 November, while economists' vote forecasts range from 8-1 in favour at Berenberg to 6-3 at Deutsche Bank1.

Longer-term borrowing costs are not confirming the squeeze: the 10-year gilt yield fell 4 basis points to below 5.1% on the morning of 5 November, the lowest since 28 August1. Buyers' bank pricing follows benchmark yields and deposit costs as well as the policy rate11, 12.

Where it lands on the purchase ledger

Inventory is where the arithmetic is clearest. The October Logistics Managers' Index put inventory costs at 88.8, up 8.9 points and the highest since March 2022, while aggregate logistics costs rose to 257.55. Inventory levels rose at the fastest pace in four years, and warehouse prices rose 7.2 points to 80.75.

Carrying cost covers storage, insurance, shrinkage and the opportunity cost of cash held in stock. It usually runs at 20% to 30% of inventory value a year6. Interest is one input to that band. Each quarter-point rise in the policy rate adds a quarter of a percentage point to the annual financing charge on the balance a buyer carries.

Demand for that financing is already climbing. Indian banks report working capital demand up 15% to 20% in recent months as input costs and longer shipping times stretch cash cycles13. Bank of India raised deposit rates by 10 to 35 basis points on 2 November, and certificate of deposit rates rose above 8% for the first time since early 202312. Indian government bond yields climbed from 6.75% in June to 7.38%11.

Trade finance follows the same funding costs. Letters of credit, bank guarantees and bill discounting are priced off bank funding and benchmark yields, so a policy move reaches fees and discount charges as well as loan interest11, 12.

The currency now cuts two ways

Sterling is the outlier. It reached its highest level against a basket of currencies since the 2016 Brexit referendum and traded at $1.3495 on the morning of 5 November8. A stronger pound lowers the sterling cost of a dollar invoice by the same percentage as the currency move, which gives UK buyers a small offset to higher financing costs8.

The dollar fell to a one-month low against a basket of major currencies on 4 November as investors moved into US Treasuries after the midterm results, and the euro gained14.

For rupee buyers the direction is the opposite. The rupee is around ₹94.50 to the dollar, and Deutsche Bank expects it to weaken beyond ₹97 in 20277. A weaker rupee raises the rupee cost of a dollar invoice one for one.

The rule is the same in both directions: a 1% move in a currency pair changes the home-currency cost of a dollar invoice by 1%. Exporters that bill in dollars and pay wages and inputs in rupees or pounds meet the move in reverse7, 8.

Freight is not a rate trade

Not everything on a landed cost sheet moves with Bank Rate. Brent traded around $95 a barrel on the morning of 5 November, after falling through $100 to a two-month low1. The LMI's transport prices index held at 88 while transport capacity stayed in contraction at 38, a market set by capacity and fuel5. Diesel was still up 70% from a year earlier, even after a 1% monthly fall5.

What to watch

The Bank publishes its decision at 12:00 GMT and holds a press conference at 12:30 GMT1. ING expects a second rise, to 4.25%, in February, and money markets price up to three rises in 20271.

The ECB meets in December9. SBI chairman CS Setty expects India's repo rate to rise another 50 basis points in December, after which he expects a pause15. Australia's post-meeting statement dropped an explicit reference to further rises, and markets cut the chance of a move before Christmas to 12%3.

For buyers, the question is not where the cycle ends. It is how long money sits in stock and in supplier credit at the new price.