PolicyLens

Conservative - Welfare

Reinstate the two-child benefit cap

Reverse any removal of the two-child limit in Universal Credit and tax credits.

Last updated: May 2026.

Read the policy-specific methodology note

Policy baseline

The Conservative page says reinstating the two-child cap would save GBP 3.2bn, with part used for defence. The model assumes Labour has removed or softened the cap in the counterfactual.

  • Savings come from lower child-related benefits.
  • Low-income larger families bear direct losses.
  • Child-poverty effects are the main risk.

Core trade-offs

The Exchequer saves money by restricting support for third and subsequent children. Low-income larger families lose income, and any labour-supply response is uncertain and unlikely to remove poverty costs.

  • Taxpayers gain lower benefit spending.
  • Larger low-income families lose support.
  • Child poverty risk rises.

Fiscal impact by 2028-29

-GBP 3.5bn to -GBP 2.0bn. Central estimate: -GBP 3.2bn.

  • Positive numbers mean net fiscal cost; negative numbers mean Exchequer savings.
  • Main saving is lower child-related benefit spending.
  • Hardship and council support can reduce net savings.
  • Savings depend on the baseline.
  • This is not an official costing.

Economic impact by 2028-29

  • Jobs: Limited employment effect; childcare and health constraints matter more for many parents.
  • Wages: No wage effect; household disposable income falls for affected families.
  • Prices: No direct price effect expected.
  • GDP / productivity: Likely negative for child wellbeing; no clear productivity upside.

Assessment

The cap can save money if the counterfactual is repeal, but it does so by cutting support for children in low-income larger families. The likely distributional and child-poverty costs should be stated plainly.

Confidence: Medium. The saving claim is clear; exact cost depends on the baseline and family caseload forecast.

Main risks

  • Child poverty: Income losses are concentrated in larger low-income families with children.
  • Weak incentives: Family-size and labour-supply responses are unlikely to offset hardship quickly.
  • Spillover costs: Poverty can increase pressure on schools, councils and health services.

Safeguards

  • Publish child-poverty impact before implementation.
  • Protect kinship care and disability cases.
  • Separate defence funding claim from welfare harm.

Academic evidence

UK government evidence

Department for Work and Pensions, 2026

Benefit expenditure tables

DWP forecasts UK social-security spending and working-age, disability and housing-cost components.

Anchors welfare-scale assumptions.

Benefit expenditure and caseload tables (2026)

Office for Budget Responsibility, 2026

OBR fiscal forecast

The OBR forecast sets the macro, borrowing and receipts baseline used for broad fiscal context.

Prevents treating tax cuts or spending changes as self-financing.

Economic and fiscal outlook: March 2026 (2026)

Sources

Other Conservative policies

PolicyLens estimates are illustrative and should not be treated as official costings.