LIVE: Britain's Institute for Fiscal Studies holds its post-budget press conference

Key Concepts

• Fiscal Rules: Government targets for public finances, e.g., current budget surplus by a specific year.
• Headroom: The margin by which the government is forecast to meet its fiscal rules, providing a buffer against economic shocks.
• Backloaded Budget: A budget where significant tax increases or spending cuts are scheduled for later years in the forecast period.
• Tax-Rising Parliament: A parliamentary term characterized by a substantial increase in overall taxation.
• Threshold Freezes: Keeping income tax or National Insurance Contribution (NICs) thresholds constant in nominal terms, leading to a real-terms tax increase as incomes rise with inflation.
• Salary Sacrifice Pensions: An arrangement where an employee gives up part of their salary in exchange for an employer making a NIC-free pension contribution on their behalf.
• National Insurance Contributions (NICs): A tax on earnings paid by employees, employers, and the self-employed, contributing to state benefits.
• Capital Income Tax Base: The definition of what types of capital income (e.g., dividends, interest, property income) are subject to taxation.
• High-Value Council Tax Surcharge (Mansion Tax): A new, additional council tax levied on properties exceeding a certain value.
• Motoring Taxation (EV Tax): A tax on electric vehicles, often designed to replace lost fuel duty revenue as vehicle fleets electrify.
• Congestion Externality: The cost imposed on other road users (e.g., lost time, increased fuel consumption) by an individual's driving, particularly in congested areas.
• Renewable Obligation Levy: A charge on electricity suppliers to support renewable electricity generation.
• UK Emissions Trading Scheme (UK ETS): A cap-and-trade system that limits greenhouse gas emissions from certain sectors, including electricity generation.
• Two-Child Limit: A policy in Universal Credit that restricts additional benefit payments for third and subsequent children born after a specific date.
• Real Household Disposable Income (RHDI): The income households have available for spending and saving after taxes and benefits, adjusted for inflation.
• Productivity Downgrade: A reduction in the forecast rate of economic output per hour worked or per worker.
• Special Educational Needs and Disability (SEND): Provision and support for children and young people with learning difficulties or disabilities.
• Education, Health and Care (EHC) Plans: Legal documents outlining the special educational needs of a child or young person and the support they should receive.
• Capitalization Effect: The phenomenon where the present value of future tax liabilities on an asset is reflected in an immediate reduction in the asset's market price.

Fiscal Overview and Headroom

The budget is projected to mark the largest tax-rising parliament on record, combining tax increases from both the previous and current budgets. Beyond explicit announcements, overall taxes have risen due to factors like the economy becoming "tax-rich" (higher real wage growth leading to more heavily taxed labor income and consumption) and the lagged effects of previous government's threshold freezes.

On the spending side, new measures include increased welfare spending, notably from ending the two-child limit and U-turns on disability insurance and winter fuel payments. These represent a "chunky increase in spending." Conversely, the budget outlines public service spending cuts or restraint in 2028-29 and 2029-30, framed as "additional efficiency savings." These are expected to save around £4 billion in 2029-30, contributing about a third of the Chancellor's increased headroom. However, there's a recognized risk that governments often promise future cuts that are not delivered, especially given the ambitious nature of these savings.

The budget is heavily backloaded in terms of savings. Borrowing is forecast to be higher in the first three years (up to 2028-29) but is then set to reduce in 2029-30 relative to previous expectations.

Crucially, the Chancellor has significantly increased her fiscal headroom. While in March, she had approximately £10 billion of headroom by 2029-30 (the year the fiscal rule binds), this was considered a small amount, leaving her vulnerable to minor economic shocks. The current budget, despite higher borrowing in the short term, has built £22 billion of headroom by 2029-30. This substantial increase is expected to reduce the probability of the Chancellor being forced off course by external economic events or forecast changes.

Regarding fiscal policy frequency, the Chancellor announced a plan for only one fiscal event per year, aiming for stability. However, she stated that a "large enough negative economic shock" in an OBR forecast would necessitate a return to additional fiscal events. The increased headroom makes it less likely that such a shock would occur, reducing the need for frequent policy adjustments and future speculation.

Indirect and Capital Taxation

1. Changes to Taxes on Saving and Investment

• Salary Sacrifice Pensions: This arrangement allows employees to sacrifice part of their salary in return for an employer making a National Insurance Contribution (NIC)-free pension contribution. This exploits a "fundamental anomaly" where employer pension contributions are NIC-free, unlike employee contributions which incur both employee and employer NICs. The budget capped these salary sacrifice contributions at £2,000 per year, expected to raise £2.5 billion. The tax increase is proportionally larger for those earning below £50,000, though most affected individuals and contributions are from higher earners (about a third from those earning over £100,000). Expected responses include reduced pension contributions, a shift towards ordinary employer contributions, and a reduction in overall work done. This measure is criticized as a "sticking plaster" solution that doesn't address the underlying disparity in NIC treatment.
• Dividend, Property, and Interest Income Tax: The budget increased all rates (except the additional rate) of dividend tax to income tax for dividends, property, and interest income. This is projected to raise £2.5 billion, primarily from capital income. While it aims to narrow the gap between capital and labor income taxation, the speaker argues that without fundamental reform of the "poorly designed tax base for capital income," merely tweaking rates will exacerbate "distortions to saving and investment."

2. High-Value Council Tax Surcharge ("Mansion Tax")

A new tax on properties valued over £2 million (as of 2026), to be levied from April 2028. It features four bands, with annual payments ranging from £25,000 to £75,000. Despite causing "quite a lot of fuss," it only raises about £0.5 billion due to the limited number of affected properties. HMRC assumes the tax will primarily lead to a reduction in the price of the taxed properties (capitalization effect). The tax base is highly geographically concentrated, with about a quarter of affected properties in just three London boroughs (Kensington, Chelsea, Westminster, Camden) and 70% in London and the Southeast. While there's a logical argument for taxing high-value properties (council tax is regressive with respect to property value, and property taxation is less economically damaging for wealth redistribution), this measure is criticized as a "bolt-on" that further complicates an existing council tax system still based on "absurdly" outdated 1991 property values, rather than a fundamental reform.

3. Indirect Taxation

• Motoring Taxation (EV Tax): A new 3p per mile tax on electric cars will come into force in April 2028. This is expected to raise about £2 billion in 2030, potentially growing to £7 billion per year in the long term as EV adoption increases, making it the second-biggest tax-raising measure after threshold freezes. It aims to offset lost fuel duty revenue. The government's Zero Emissions Vehicle Mandate means the share of EVs sold cannot fall, so any reduction in EV demand due to the tax might counter-intuitively increase the price of petrol and diesel vehicles. The primary justification for motoring tax is to correct for "significant costs on the rest of society," mainly congestion (which accounts for the vast majority of these costs), accidents, and greenhouse gas emissions. Road wear and tear is deemed a "tiny" justification. The flat-rate 3p per mile tax is criticized for not effectively targeting the congestion externality, as 50% of congestion costs come from just 3% of miles driven (e.g., in central London). A congestion-based tax would be a much better option.
• Energy Bills: The budget includes a temporary reduction in the tax paid by electricity suppliers through the Renewable Obligation Levy, with a portion paid by central government for three years. This is expected to reduce average annual energy bills by about £131 for three years, falling to £39 thereafter. While lower electricity prices might increase consumption, the UK Emissions Trading Scheme caps total emissions, meaning increased electricity demand would likely push up prices and reduce emissions in other sectors (e.g., flights, energy-intensive industries).

Overall, the indirect tax changes are numerous and do not contribute to a "recipe for stability and simplicity" in the tax system.

Tax Thresholds and Welfare

1. Freeze to Tax Thresholds

Most major personal tax thresholds have been frozen since mid-2022, implying a real-terms tax rise. The budget extended this freeze from April 2028 to April 2031, a three-year extension.

• Impact on Tax Liabilities: By 2030, basic rate taxpayers will see a £220 tax rise, higher rate taxpayers around £600, and additional rate taxpayers slightly less.
• Broader Impact: By the beginning of the next decade, 5 million more people are projected to pay income tax (700,000 due to the extension), and 5 million more will pay higher rate tax (1 million due to the extension).
• Tax System Shape: The higher rate threshold (40% tax) is set to fall below the 75th percentile of employee earnings, meaning a quarter of employees will pay higher rate tax.
• Revenue: Expected to raise £13 billion by the early next decade, though this yield is "quite uncertain" due to the difficulty of predicting inflation forecasts 3-5 years out.

2. Scrapping of the Two-Child Limit

This policy in Universal Credit previously denied additional benefit payments (around £3,500 per year per child) for third and subsequent children born after April 2017. The Chancellor announced its scrapping from this coming April.

• Impact: This will increase benefits for over half a million families by 2029, at a cost of about £3 billion.
• Child Poverty: The government estimates it will reduce child poverty by approximately 450,000 children (3%). This measure is "well targeted at reducing headline poverty," as poverty among children in larger families (44%) is significantly higher than in smaller families (24%). However, it is "much less well targeted at dealing with deep poverty," as 140,000 children affected by a separate benefit cap will not gain.

3. Impact on Households and Productivity

• Household Impact: In the short run (next year), the budget includes giveaways (abolishing the two-child limit, fuel duty cut) that primarily benefit lower-income households. However, by 2030 (long run), the tax threshold freeze, along with other takeaways (higher taxes on savings, dividends, property income, and restrictions on salary sacrifice), will lead to "larger declines in income towards the middle and top of the income distribution." This reflects a strategy of loosening in the short run to tighten in the long run.
• Productivity: The OBR has downgraded its productivity forecast, leading to lower real GDP per capita. Despite some high-profile giveaways, real household disposable income growth remains "really pretty poor," with the forecast for this parliament being one of the weakest in recent decades.

The budget presents two contrasting policy decisions: a broad-based, somewhat uncertain tax rise (threshold freeze) and a smaller, targeted benefit rise (two-child limit). Ultimately, long-term living standards growth hinges on rising productivity, an area where "more to be done."

Q&A Highlights

Special Educational Needs and Disability (SEND) Spending: SEND spending is rising rapidly due to:

1. A rapid increase in pupils with high-cost special needs requiring Education, Health and Care (EHC) plans.
2. Capacity constraints in state-funded special schools, leading to reliance on more expensive independent sector placements (e.g., £65,000/head vs. £25,000/head).
3. A lack of a "value for money test" in the system, resulting in high spending but "patchy levels of quality." The government is taking responsibility for a projected £6 billion funding gap from 2028-29. Choices to address this include slowing SEND spending growth (which has been 14% in real terms), topping up the overall schools budget (where £6 billion equals 9% of the budget), or reducing mainstream school funding (11-12% of the mainstream budget). Concerns were raised about existing local government deficits for high needs funding and the incentives for councils to control spending if central government eventually writes off these debts.

Broader Spending Pressures: Beyond SEND, other potential spending pressures include upward revisions in disability caseloads and asylum costs. Public service delivery faces challenges from higher inflation, squeezed budgets, and cost pressures (e.g., NHS waiting lists, drug prices, public sector pay disputes). Commitments like increasing defense spending to meet NATO targets also add pressure. Historically, spending often turns out higher than government projections. While the government could find cuts by defining what the state should stop doing or charging for, current "efficiency savings" are ambitious. Non-protected departments (police, prisons, local government, HMRC) are facing real-terms year-on-year cuts, which could be seen as "pre-election austerity."

Tax Reform Challenges: Governments often avoid fundamental tax reform due to:

1. Misdiagnosis of problems: Tweaking micro issues without a broader view can create new distortions.
2. Fear of voter backlash: Reforms create winners and losers, and losers tend to be more vocal, even if the status quo is unfair (e.g., updating council tax values). The discussion highlighted that the current tax system has "more distortions than are necessary" to raise revenues and achieve redistributive aims. For instance, changes to ISAs that penalize saving are criticized, with a preference for unlimited tax-free cash ISAs while taxing "excess returns" from other assets.

"Tax-Rich" Economy: This refers to a situation where higher real wage growth leads to a greater proportion of income coming from labor (which is taxed more heavily than other income types) and more consumption (which is subject to VAT). Both factors contribute to higher government revenues without necessarily requiring overall economic growth.

OBR Forecast Frequency: The Chancellor's decision to require the OBR to assess compliance with fiscal rules only once per year (instead of twice) is a change to the fiscal architecture. While the OBR will still produce two forecasts, the increased headroom makes it less likely that a second forecast would necessitate immediate policy changes, potentially leading to less "policy tweaking."

Housing Market Impact of Mansion Tax: The primary effect of the mansion tax is expected to be a reduction in the prices of the affected properties (capitalization effect), as the present value of future tax payments is discounted from the property's value. This means the tax burden falls on the current owners at the point of sale, not necessarily future owners or occupiers. Uncertainty around the band thresholds might temporarily slow sales of properties near those thresholds.

Supply-Side Improvements and Growth: There is "no magic growth lever" in the Treasury. Improving growth and productivity requires sustained effort across many policy areas, including regulation, competition, employment, and education. On tax, the focus should often be on removing disincentives to investment, risk-taking, saving, and labor supply, rather than just adding new incentives. Many existing distortions are unnecessary. Consistent, incremental improvements across various policies, even if not individually "scored" by the OBR, can collectively drive growth.

International Student Fees: An expected 6% levy on international student tuition fees was replaced by a £925 flat fee per student from 2028, with the first 220 students at any provider exempt. The government assesses that some of this will be passed through to higher fees, leading to a decline in international student numbers.

Synthesis and Conclusion

The budget represents a strategic shift towards long-term fiscal tightening, primarily achieved through backloaded tax increases and ambitious future spending cuts, while providing some short-term loosening. A key outcome is the significant increase in the Chancellor's fiscal headroom to £22 billion, which substantially reduces the vulnerability of public finances to unforeseen economic shocks and lessens the likelihood of frequent, reactive policy changes.

However, the budget is largely characterized by "sticking plaster solutions" rather than fundamental reforms. Many tax measures, such as the cap on salary sacrifice pensions, the high-value council tax surcharge, and the EV road tax, are criticized for increasing complexity, creating new distortions, or failing to address the underlying structural issues in the UK's tax system. While the government is commended for finally having a plan for EV taxation and for more transparently addressing SEND pressures, the deliverability of ambitious efficiency savings and backloaded tax hikes (especially those coinciding with an election year) remains a significant risk.

Despite some targeted giveaways, particularly the scrapping of the two-child limit, the overall impact on households points to short-term benefits followed by long-term tightening, especially for middle and higher-income earners due to the extended tax threshold freezes. The OBR's downgraded productivity forecast underscores a persistent challenge to long-term living standards, with the budget offering little in the way of fundamental supply-side reforms to boost growth. The overarching message is one of fiscal prudence achieved through incremental, often complex, adjustments rather than bold, systemic overhauls, leaving much "more to be done" in addressing the UK's deep-seated economic and fiscal challenges.