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Think Tank Proposes National Insurance for Landlords

The NEF proposes that landlords pay National Insurance on rental income, potentially raising £3.2 billion annually.

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

TL;DR

  • The NEF suggests applying National Insurance to landlords rental income, potentially raising £3.2 billion yearly.
  • this could reshape financial obligations for landlords.

Written by David Sampson for Mortgage118. Last updated 5 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 be required to pay National Insurance contributions (NICs) on their rental income. This initiative aims to generate an estimated £3.2 billion annually, which could significantly impact the buy-to-let sector and the broader housing market.

What are the implications of this proposal for landlords?

If implemented, landlords would face increased financial responsibilities, as rental income would be subject to NICs. This change could lead to higher operational costs, which may ultimately be passed on to tenants through increased rents. The NEF’s proposal also includes a suggestion to reintroduce mortgage interest relief, which was previously eliminated, to help mitigate the financial burden on landlords.

How might this affect the rental market?

The introduction of NICs for landlords could lead to a shift in the rental market dynamics. With increased costs, some landlords might reconsider their investment strategies, potentially leading to a decrease in rental properties available. This could exacerbate the existing housing shortage, making it more challenging for tenants to find affordable housing options.

What this means for landlords and investors

For landlords and property investors, the NEF’s proposal signals a potential shift in the regulatory market. Those with existing buy-to-let properties may need to reassess their financial strategies, including rental pricing and investment plans. Additionally, investors may want to stay informed about any legislative changes that could affect their returns on investment. Keeping an eye on current mortgage rates and exploring options for mortgage rate comparison could be prudent as these discussions evolve.

Frequently asked questions

Will landlords have to pay National Insurance on all rental income?

If the proposal is enacted, landlords would be required to pay NICs on their rental income, significantly altering their financial obligations.

What support might landlords receive if NICs are introduced?

The NEF suggests reintroducing mortgage interest relief to help offset the financial impact of the new NICs on landlords.

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.