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Think Tank Proposes National Insurance for Landlords

A think tank suggests landlords pay National Insurance on rental income, potentially raising significant revenue and impacting the buy-to-let market.

By David Sampson
4 June 2026
2 min read
UK buy to let mortgage article image for Think Tank Proposes National Insurance for Landlords

TL;DR

  • A think tank suggests imposing National Insurance on landlords rental income, which could generate significant revenue.
  • this may affect landlords financial obligations and investment strategies.

Written by David Sampson for Mortgage118. Last updated 4 June 2026. Reviewed against our editorial standards. Editorial standards. Mortgage118 is a directory — not FCA-authorised and not a mortgage adviser.

The New Economics Foundation (NEF) has proposed that landlords should contribute National Insurance on their rental income, a move that could significantly impact the buy-to-let sector. This recommendation aims to raise substantial revenue, potentially reshaping the financial market for property owners.

What is the Proposal from the NEF?

The NEF’s report advocates for bringing rental income under the scope of National Insurance contributions (NICs). This change is intended to create a new revenue stream for the government while ensuring that landlords contribute fairly to the economy. The proposed NICs would apply to the income generated from rental properties, which has previously been exempt from such contributions.

How Could This Affect Landlords?

If implemented, landlords will face additional financial responsibilities, which could influence their profit margins. The NEF has suggested that to ease the burden on landlords, the government might consider reintroducing mortgage interest relief. This could help offset the costs associated with the new NICs, allowing landlords to maintain more stable cash flow.

What This Means for Property Investors

For property investors, this proposal could lead to a reevaluation of investment strategies. Increased costs from NICs may discourage some from entering the buy-to-let market or prompt existing landlords to raise rents to cover new expenses. Investors should stay informed about potential policy changes and consider how these could impact their returns on investment.

Frequently asked questions

Will all landlords be affected by the proposed NICs?

Yes, if the proposal is enacted, all landlords earning rental income would be subject to National Insurance contributions, impacting their overall profitability.

Could mortgage interest relief return to offset these costs?

The NEF has suggested that reintroducing mortgage interest relief could help mitigate the financial impact of new NICs on landlords, but this would depend on government decisions.

About David Sampson

David Sampson writes about the UK mortgage market for Mortgage118, covering specialist lending, market trends, and practical advice for borrowers. All content is reviewed for accuracy against FCA guidelines and current market data.

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