GBP/USD Rally: How the 2025 UK Autumn Budget and OBR Projections Are Boosting Sterling

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Analyze the GBP/USD reaction to the UK Autumn Budget 2025. Discover how OBR projections, new tax measures, and inflation forecasts are driving the British Pound to 1.3200 against the Dollar.


 

Why is GBP/USD rising after the Autumn Budget?

The GBP/USD exchange rate strengthened to approximately 1.3200 following the release of the 2025 UK Autumn Budget. Markets reacted positively to Chancellor Rachel Reeves’ commitment to fiscal responsibility and the Office for Budget Responsibility’s (OBR) upgraded near-term GDP growth forecast of 1.5%, despite announcements of significant tax increases and higher near-term inflation projections.


The financial markets witnessed significant movement on Wednesday, November 26, 2025, as traders digested the highly anticipated UK Autumn Budget. The British Pound (GBP) managed to edge higher against the US Dollar (USD), solidifying a bullish trend in the wake of new fiscal announcements.

At the time of writing, the GBP/USD reaction to the UK Autumn Budget 2025 has pushed the pair to trade around the 1.3200 level. This rise comes after a session characterized by sharp two-way swings, initially triggered by an accidental early release of forecasts by the Office for Budget Responsibility (OBR).

While the leak caused a brief bout of volatility, the market eventually stabilized, finding optimism in the government’s fiscal framework. In this article, we analyze the key drivers behind Sterling’s strength, the details of the OBR projections, and what this means for the future of the GBP/USD pair.

OBR Projections: A Mixed Bag for Economic Growth

 

The most critical element driving the currency markets today is the updated data from the OBR. The independent fiscal watchdog provided a detailed outlook that paints a complex picture of the UK economy.

While the immediate future looks brighter than previously thought, the medium-term outlook suggests a cooling off.

GDP Growth Forecasts Revised

 

The OBR has revised its growth outlook, offering a “good news, bad news” scenario for investors:

  • 2025 Growth Upgrade: The GDP is now expected to grow by 1.5% in 2025, a significant improvement from the tepid 1% forecast issued earlier this year. This immediate boost is a primary factor supporting the Pound’s current strength.

  • Medium-Term Downgrades: Conversely, forecasts for subsequent years have been trimmed compared to March projections.

    • 2026: Revised down to 1.4% (previously 1.9%).

    • 2027: Revised down to 1.6% (previously 1.8%).

    • 2028: Trimmed to 1.5% (previously 1.7%).

    • 2029: Expected at 1.5% (previously 1.8%).

Despite the long-term adjustments, the market is currently focusing on the immediate resilience of the UK economy in 2025.

Inflation and Interest Rates: The BoE Dilemma

 

For Forex traders, inflation data is often more impactful than growth figures because it dictates central bank policy. The OBR’s updated inflation figures suggest that the Bank of England (BoE) may need to keep interest rates higher for longer, which traditionally supports the domestic currency.

Rising Near-Term Inflation

 

The OBR has revised its inflation projections upward for the near term:

  • 2025 Inflation: Expected to average 3.5%, up from the March estimate of 3.2%.

  • 2026 Outlook: Lifted to 2.5%, compared to the previous assumption of 2.1%.

The OBR expects inflation to eventually fall back toward the BoE’s target of 2% starting in 2027.

Impact on Monetary Policy

 

With inflation projected to remain sticky above the 2% target for the next two years, the Bank of England may be less inclined to cut interest rates aggressively.

Contrast this with the Federal Reserve (Fed) in the United States, which currently maintains a dovish outlook. This divergence in monetary policy—a potentially hawkish BoE versus a dovish Fed—provides a “mildly supportive backdrop” for Sterling, allowing the GBP/USD pair to retain an upward bias.

Chancellor Reeves’ Strategy: Taxes and Investment

 

In her pivotal Budget speech, Chancellor Rachel Reeves aimed to strike a delicate balance between fiscal prudence and economic stimulation. She explicitly ruled out a return to austerity, a move welcomed by market participants fearing a contraction in public spending.

Key Fiscal Measures

 

  • Tax Increases: The Budget delivers the third-biggest medium-term tax increase as a share of GDP since the OBR was created.

  • Personal Thresholds: The freeze on personal tax thresholds is extended to 2030-31.

  • Capital Gains & Savings: A 2 percentage point rise in tax rates on savings, dividends, and capital gains was announced.

  • Revenue Generation: These measures are expected to raise an additional £26.1 billion by 2029-30.

Addressing the National Debt

 

Reeves did not shy away from criticizing the previous Conservative administration. She cited severe economic damage and a doubling of the national debt, noting that Britain’s net financial debt now stands at a staggering £2.6 trillion.

Crucially, she highlighted that every tenth pound of public spending currently goes toward interest payments. Her new fiscal framework is designed to reduce borrowing while supporting growth, with the budget balance projected to shift to a surplus of £3.9 billion by 2028-29.

Market Analysis: GBP Performance vs. Major Currencies

 

While the headline story is the strength of the Pound against the Dollar, Sterling has performed well across the board. The removal of near-term fiscal uncertainty has encouraged investors to buy back into British assets.

Currency Heat Map Highlights

 

According to today’s market data, the British Pound was the strongest performer against the Japanese Yen (JPY) and held gains against the Euro (EUR).

Daily Percentage Changes for GBP:

  • vs. USD: +0.38%

  • vs. EUR: +0.33%

  • vs. JPY: +0.62%

  • vs. CHF: +0.35%

The table below illustrates the percentage change of the British Pound (GBP) against major listed currencies today:

Currency USD EUR GBP JPY CAD AUD NZD CHF
GBP Impact +0.38% +0.29% +0.62% +0.27% -0.06% -0.62% +0.28%

Note: Positive values indicate GBP strengthening against the quote currency.

Technical Outlook: What’s Next for GBP/USD?

 

Going forward, the reaction in GBP/USD will depend heavily on how global investors interpret the balance between firmer inflation projections and softer medium-term growth.

The immediate reaction suggests that the market views the budget as credible. By addressing the deficit through tax hikes rather than spending cuts, the government has avoided the volatility associated with “unfunded tax cuts” seen in previous years.

With the US Dollar currently on the back foot due to Fed positioning, the path of least resistance for GBP/USD appears to be higher. Traders will now look to the upcoming Bank of England meetings to see if the central bank acknowledges the OBR’s higher inflation forecast with hawkish rhetoric.


Frequently Asked Questions (FAQ)

 

1. Why did the GBP/USD exchange rate rise after the Autumn Budget?

The Pound strengthened because the budget reduced fiscal uncertainty and the OBR upgraded GDP growth forecasts for 2025 to 1.5%. Additionally, higher inflation forecasts suggest the Bank of England may keep interest rates higher for longer compared to the US Federal Reserve.

2. What did the OBR forecast for UK inflation in 2025?

The Office for Budget Responsibility revised its inflation forecast upward. They now expect average price growth of 3.5% in 2025, up from the previous estimate of 3.2% made in March.

3. What major tax changes were announced in the 2025 Autumn Budget?

Chancellor Rachel Reeves announced a 2 percentage point increase in tax rates on dividends, savings, and capital gains. Furthermore, the freeze on personal tax thresholds has been extended to the 2030-31 fiscal year.

4. How does the current UK debt level affect the economy?

Chancellor Reeves noted that UK net financial debt stands at £2.6 trillion. High debt levels mean that approximately 10% of all public spending is used solely to pay interest on that debt, limiting funds available for public services and investment.

5. What is the outlook for the UK economy in 2026 and beyond?

While the 2025 outlook was upgraded, the OBR downgraded growth forecasts for the medium term. GDP growth is expected to slow to 1.4% in 2026, 1.6% in 2027, and 1.5% in 2028, suggesting a cooling of the economy after next year.