Autumn Budget 2025 – What’s changed and who will it affect?

After weeks of strategic leaks, shifting hints and rumoured reversals between Treasury insiders and the media, expectations bounced from sweeping change to cautious restraint.

Then came the moment that will go down in Budget history — an astonishing slip-up by the OBR, who accidentally released the full Budget around an hour before the Chancellor even reached the despatch box. So, by the time Rachel Reeves began speaking, the story was already out, though the nuts and bolts still hit hard.

A comprehensive budget overview

1. Government freezes income tax and National Insurance thresholds to 2030–31

Income tax and National Insurance thresholds across England, Wales and Northern Ireland will stay where they are until April 2031 — including the personal allowance and the thresholds for higher and additional rates.

Who will this affect – and how?

• As wages increase, more of your income will shift into taxable bands, even though the headline tax rates remain unchanged.
• Mid-income earners will feel this drift into the 40% band most strongly.
• Employers will see greater overall tax friction against payroll expansion and may face upward pressure on salaries.
• Lower-income earners keep tax-free allowance, but inflation weakens its real-world value.

2. New council tax surcharge on high value homes

A “high-value property surcharge” will apply to homes above £2 million, with a higher rate above £5 million. Illustrative figures suggest around £2,500 per year above the £2m threshold and £7,500 above £5m.

Who will this affect – and how?

• High-value homeowners will see a notable rise in their annual council tax burden.
• This will hit London and the South East particularly hard.
• Landlords who hold prime residential property are likely to push some of this cost into adjusted rents.
• Average-value homeowners and first-time buyers will not be impacted.

3. Higher tax on property, savings and dividend income

Rates on investment-derived income — rental profits, interest and dividends — are set to rise, with the stated aim of aligning these more closely with income taxed via payroll.
Headline points include –

• An increase of 2 percentage points on dividend tax in the basic and higher rate bands from 6 April 2026
• An increase of 2 percentage points on all tax rates for rental and savings income from 6 April 2027
• Existing allowance protection remains for those with modest levels of such income

Who will this affect – and how?

• Buy-to-let landlords will see reduced net return unless rents rise.
• Owner-directors using dividends for remuneration will face a higher tax take.
• Retired individuals relying on investment income will need to evaluate their tax-shield strategies.
• Those with small dividend or savings amounts may remain fully or partially shielded.

4. Cash ISA allowance cut for under-65s

Beginning April 2027, the annual cash ISA limit will drop from £20,000 to £12,000 for those under 65. The overall ISA limit for stocks and shares remains at £20,000. Over-65s retain the full £20,000 cash limit.

Who will this affect – and how?

• If you prefer cash-based savings, you may have to reallocate funds or accept tax exposure above £12,000.
• Older savers remain untouched by the change.
• Households currently using the full allowance will feel the immediate tightening.
• Smaller savers may experience minimal change.

5. New cap on salary sacrifice pension tax break

From April 2029, the employer NIC benefit from salary sacrifice pension agreements will be capped at £2,000 per employee per year.

Who will this affect – and how?

• High-earning sacrificers will lose part of the current benefit after crossing the cap.
• Employers offering extensive sacrifice programs may restructure compensation practices.
• Those making modest pension contributions generally remain unaffected.
• This does not apply at all to the self-employed.

6. Two-child benefit cap scrapped

The two-child limit for benefit support will be removed, expected to take effect from April 2026.

Who will this affect – and how?

• Families with larger numbers of children on Universal Credit or Child Tax Credit will see a direct income uplift.
• Lower-income households planning additional children will no longer face the same systemic penalty.
• Charities working with children in hardship may see pressure reduced.
• Higher-income households not using these benefits won’t be affected directly.

7. National Living Wage and minimum wage rises

From April 2026, the National Living Wage increases to £12.71 for adults, with increases for younger age groups as well.

Who will this affect – and how?

• Low-paid workers will see an immediate rise in pay.
• Employers in labour-heavy sectors will feel higher wage pressure.
• Households dependent on minimum-wage jobs will benefit from improved take-home earnings.

8. Energy bill cuts through levy changes

Several environmental levies will be removed from domestic energy bills. Expected average savings are around £150 per household per year, with up to £300 for lower-income households.

Who will this affect – and how?

• All bill-paying households should see reduced electricity and gas costs.
• Those on prepay or low-income tariffs will benefit proportionally more.
• Those working in the renewables sector will need to monitor how funding models shift.

9. New mileage tax on electric and plug-in hybrid vehicles

From April 2028, electric vehicles will incur a charge of 3p per mile, while plug-in hybrids will incur a 1.5p per mile rate.

Who will this affect – and how?

• EV drivers will face a new usage-based cost.
• Corporate fleets may rethink long-term EV investment strategies.
• The tax incentive gap between EVs and ICE vehicles will narrow.
• Rural and long-distance users will absorb higher annual motoring costs.

10. Higher gambling taxes and end of bingo duty

Online gaming taxes will rise: remote gaming duty moving from 21% to 40%, betting duty from 15% to 25%. Bingo duty disappears.

Who will this affect – and how?

• Online operators will absorb heavy-duty increases.
• Regular gamblers may see reduced odds and fewer incentives.
• Bingo halls gain a competitive and cost-weight advantage.

11. Changes to pensions, inheritance tax and business reliefs

Relief adjustments will impact wealth transfer planning and estate structuring.
Key points include

• Pensions entering inheritance tax scope from April 2027
• Business and agricultural property relief capped at £1 million
• Corporation tax held at 25%

Who will this affect – and how?

• Those using pensions for estate planning will require new strategies.
• Family-run enterprises and farming estates will face tighter succession-planning constraints.
• Most households with modest estates will remain unaffected.
• Larger businesses benefit from corporation-tax certainty.

12. Extra spending on NHS, infrastructure and regional growth

More than £120 billion is committed to infrastructure projects and sectoral investment, with ongoing funding increases for the NHS and education.

Who will this affect – and how?

• Patients should eventually see reduced waiting times.
• Residents in regions receiving transport investment will see improved connectivity.
• Industries like engineering, construction and clean technology will benefit from procurement opportunities.
• The wider economy sees productivity gains over the medium term.

13. State pension and student finance changes

The State Pension increases by 4.8%, and student loan repayment thresholds remain frozen.

Who will this affect – and how?

• Pensioners gain a higher nominal income.
• Graduates will pay back more relative to earnings growth.
• Young workers must continue budgeting with repayment deductions in mind.

What this Budget adds up to

Collectively, the measures generate an estimated £26 billion annually by 2029–30. Much of this comes from increased taxation on assets, investment income, high-value property and EV-based motoring, compounded by static tax thresholds.

The resulting funds support welfare extension (notably the end of the two-child cap) and continued public-sector investment.

And, instead of creating one sudden financial impact, the effects are likely to appear gradually and become clearer over time.

For clear, expert support…

If you want to understand the personal implications, talk to us! If you’re looking for practical, personal advice on how these measures influence your finances, taxation, planning or business strategy, get in touch with our experts at Dux Advisory.

You’ll get grounded, pragmatic guidance that helps you steer through the uncertainty and make smart choices for the future.

Contact Dux Advisory today — we’re here and ready to help.

To read the full Autumn Budget Summary, click here.