National Insurance on Rental Income – Final move that broke the PRS

The UK rental sector is facing one of its biggest debates in years as the government considers introducing National Insurance (NI) contributions on rental income.

The move is being explored as part of the upcoming Autumn Budget, with the Treasury hoping to raise an additional £2 billion in tax revenue.

However, the proposal has sparked controversy among landlords, tenants, and housing experts, with many warning that it could destabilise an already strained rental market.

What Is the Proposal?

Currently, landlords pay income tax on rental profits; however, these earnings are not subject to National Insurance.

The Treasury is now considering changing this by levying an NI charge—potentially set at 8%—on rental profits in the same way wages and self-employed income are taxed.

Based on official figures showing £27 billion in net rental income annually, this could generate over £2 billion in revenue for the government.

However, exemptions for certain groups—such as landlords over pension age and those operating through limited companies—mean the realistic intake may be closer to £1 billion.

Why Is It Being Considered?

The government is under pressure to plug a £40 billion fiscal shortfall. Chancellor Rachel Reeves has pledged not to raise VAT, income tax, or existing NI rates, leaving the Treasury looking for alternative ways to expand the tax base.

Applying NI to rental income would also be framed as an issue of fairness. Advocates argue it closes a loophole where rental profits are treated more favourably than other forms of income, such as wages or self-employed earnings.

How Much Do Landlords Actually Earn?

Critics of the plan argue that the government has overestimated the earnings of landlords. HMRC data shows:

52% of landlords declare annual rental income of £0–£10,000.
The average gross rental income is £19,200 per year.
Typical allowable expenses (mortgages, repairs, insurance) total about £9,800 per landlord annually.
Net profits for many landlords typically range from £8,000 to £12,000.

Applying an 8% NI charge on top of income tax could mean an additional £600–£1,000 bill per landlord, eating significantly into already tight margins.

The Landlords’ Perspective

The CEO of the British Landlord Association (The BLA), Mr Sajjad Ahmad, commented:

“We at the BLA anticipated this development as far back as our original blog in 2020.

The reality is that the UK, as a NATO member, faces immense financial pressures. With the United States signalling, under President Trump, that it will no longer bankroll the war in Ukraine, Britain must now prepare to fund its own defence strategy. This means raising contributions to NATO from the current 2% to as high as 5%.

The UK economy is already fragile, and there are real fears we could be forced into seeking assistance from the IMF if we cannot manage our spiralling debt. Against this backdrop, the Chancellor is inevitably searching for sectors to target for additional revenue. Unfortunately, the private landlord sector stands out as an easy target.

Rental income is often portrayed as a secondary income, making landlords politically expendable. It is seen as a sector the government can tax heavily without provoking widespread public sympathy. Even if landlords raise their voices in protest, they are unlikely to gain the same level of support as other groups. That is the brutal truth of our situation. We strongly oppose any more taxes on the residential & commercial landlord sector.”

The private landlord sector would be hit with some sort of additional tax. This was inevitable. This additional tax will drive out those landlords :

Rent increases – Many landlords will pass the cost onto tenants, raising rents in an already overheated market.
Exit from the market – Small landlords may sell up entirely, further reducing rental supply.
Incorporation shift – Some may move properties into limited companies to avoid NI, though this brings costs and complications.

For example, a landlord earning £16,500 net rental profit would see their take-home halved once income tax and NI are both applied. Critics say this undermines incentives to remain in the sector.

Impact on Tenants

Tenants are already struggling with record rents. In June 2025, the average UK monthly rent reached £1,344, up 6.7% year-on-year. Over the past three years, rents have risen by 21%, while tenants in England now spend on average 36.3% of their income on rent, well above the 30% affordability threshold.

In London, renters are in an even tighter squeeze, spending 41.6% of income on rent, with extreme cases in boroughs like Kensington & Chelsea reaching 74%. Any move that pushes landlords to increase rents could make the situation untenable for many households.

The Political Balancing Act

Supporters of the NI change argue it could raise funds for public services while creating a more balanced tax system. But the political risk is significant. The rental market is already under strain due to tax changes, licensing schemes, and the looming Renters’ Reform Bill.

Piling on another cost could further alienate landlords and worsen housing shortages.

Even property commentators have warned that the move risks being “economically self-defeating.” While the Treasury may gain in revenue, the knock-on effects of higher rents, reduced supply, and tenant hardship could outweigh the benefits.

Statistics at a Glance

2.84 million landlords declared rental income in 2022–23.
Total rental income: £50.17 billion.
Total expenses claimed: £24.54 billion.
Average gross rent: £19,200.
Average monthly rent UK: £1,344 (June 2025).
Rent inflation: +21% since 2022.
Tenants’ income spent on rent: 36.3% in England, 41.6% in London.
Potential NI revenue: up to £2 billion, realistically ~£1 billion.

FAQs on National Insurance on Rental Income

What exactly is being proposed with National Insurance on rental income?

The government may apply NI at around 8% to landlords’ rental profits, treating them in the same manner as wages.

How much would landlords pay?

A landlord with £15,000 profit could pay about £1,200 in NI each year, in addition to income tax.

Will all landlords be affected?

No. Pension-age landlords and those operating via companies may be exempt. Around 60% would be impacted.

Why is the government doing this?

To raise revenue and ensure fairness between income types. The Treasury faces a £40 billion shortfall.

What does this mean for tenants?

Likely rent increases, as landlords pass on costs. Affordability could worsen, especially in London.

When would it start?

The measure could be announced in the Autumn Budget 2025 and take effect from April 2026.

Conclusion

The debate over National Insurance on rental income is about more than just tax. It cuts to the heart of how the UK balances housing supply, tenant affordability, and landlord viability.

While the government seeks revenue and fairness, the unintended consequences could ripple through an already fragile rental market.

For landlords, this may be a tipping point. For tenants, it risks pushing rents even higher. And for the government, it is a gamble between fiscal gain and housing stability. The coming Autumn Budget will determine whether this proposal remains a theory or becomes a turning point in UK housing policy.

The British Landlords Association is a national landlords’ association for UK landlords. It is one of the largest landlord associations in the UK. Join us now for £89.95!

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