R (on the application of SG & Ors) v Secretary of State for Work and Pensions (SSWP) [2015] UKSC 16

Lone mothers challenged the benefit cap introduced under the Welfare Reform Act 2012, arguing it indirectly discriminated against women and victims of domestic violence, contrary to Article 14 ECHR read with A1P1. The Supreme Court dismissed the appeal by majority, holding the cap was justified.

Facts

The Secretary of State for Work and Pensions introduced a benefit cap under the Welfare Reform Act 2012 and the Benefit Cap (Housing Benefit) Regulations 2012. The cap limited total welfare benefits payable to non-working households to £500 per week for couples and lone parents with children, and £350 per week for single adults, equivalent to the net median earnings of working households. The cap operated by reducing housing benefit. It disproportionately affected households with several children living in high-rent areas, predominantly London. Around 60% of affected claimants were single women, since the great majority of single parents are women (92% in 2011). The appellants were lone mothers with dependent children, some of whom had fled domestic violence, whose income was substantially reduced by the cap.

Issues

The principal issues were:

• Whether the Regulations were incompatible with Article 14 ECHR read with A1P1 because they indirectly discriminated against women, particularly lone parents and victims of domestic violence;
• Whether the Secretary of State had complied with the obligation under Article 3(1) of the UN Convention on the Rights of the Child (UNCRC) to treat the best interests of children as a primary consideration;
• Whether any discriminatory effect could be justified under the ‘manifestly without reasonable foundation’ test applicable to general measures of economic or social strategy.

Arguments

Appellants

The appellants argued that the cap had a disproportionately adverse impact on women (particularly lone mothers) and victims of domestic violence; that the stated justifications (fairness, fiscal savings, work incentives) did not adequately justify the discriminatory impact; and that the Secretary of State had failed to treat the best interests of affected children as a primary consideration as required by Article 3(1) UNCRC. They contended that comparing capped benefit income with average earnings (excluding in-work benefits) was not a fair comparison.

Respondent

The Secretary of State accepted indirect discrimination but argued that the Regulations pursued three legitimate aims: securing the economic well-being of the country through fiscal savings, incentivising work, and imposing a reasonable limit on welfare receipt. He argued that the policy had been extensively scrutinised by Parliament and was not manifestly without reasonable foundation. He further contended that Article 3(1) UNCRC was not directly applicable in domestic law and was not relevant to justification under Article 14 read with A1P1 where the discrimination concerned women’s property rights rather than children’s rights.

Judgment

The Supreme Court dismissed the appeal by a majority of 3-2 (Lord Reed, Lord Carnwath and Lord Hughes; Lady Hale and Lord Kerr dissenting).

Lord Reed (majority)

Lord Reed held that the Regulations pursued three legitimate aims and that the differential impact on women was an inevitable consequence of capping benefits paid mainly to households with children, the majority of which are headed by lone mothers. Applying the ‘manifestly without reasonable foundation’ test from Stec v United Kingdom and Humphreys v Revenue and Customs Commissioners, he concluded the assessment by Government and Parliament was not manifestly unreasonable. He held that Article 3(1) UNCRC, as an unincorporated treaty, was not directly justiciable in domestic law and was not relevant to determining whether the differential impact on men and women was justified under Article 14 with A1P1, since the impact on children was the same regardless of whether they lived with a single mother or single father.

Lord Carnwath (concurring in result)

Lord Carnwath considered that the Secretary of State had not in substance treated the best interests of children as a primary consideration as required by Article 3(1) UNCRC, particularly given the inclusion of child-related benefits within the cap. However, he agreed with Lord Reed that there was no sufficient connection between the UNCRC and the particular form of discrimination (against women in respect of their property rights) to allow Article 3(1) to determine the issue. He therefore dismissed the appeal, expressing hope that the Government would address the implications during its review.

Lord Hughes (concurring)

Lord Hughes agreed with Lord Reed. He held Article 3(1) UNCRC had no direct effect in English law and that there was no breach in any event, since the Secretary of State had fully considered the interests of affected children during the extensive Parliamentary debates.

Lady Hale (dissenting)

Lady Hale held that the cap’s indirect discrimination against lone parents could not be justified. The Government’s aims of fairness and work incentives were undermined by the realities facing lone parents, particularly those with young children, who could not realistically move into work or to cheaper accommodation. She held Article 3(1) UNCRC was relevant to assessing proportionality, citing X v Austria, and that the Secretary of State had failed to treat children’s best interests as a primary consideration. She would have granted a declaration of incompatibility.

Lord Kerr (dissenting)

Lord Kerr went further, holding that Article 3(1) UNCRC was directly enforceable in domestic law in respect of human rights treaties, departing from strict dualism. He held that a lone mother’s interests were indissociable from those of her children, so discrimination against the children’s interests was discrimination against the mothers.

Implications

The decision confirms that in the context of welfare benefits and other general measures of economic or social strategy, courts will apply the ‘manifestly without reasonable foundation’ test when assessing whether discrimination is justified under Article 14 ECHR, reflecting the wide margin of appreciation afforded to democratically accountable institutions. The judgment reinforces that fiscal savings, work incentives, and limiting welfare receipt are legitimate aims.

On the use of unincorporated international treaties, the majority reaffirmed the orthodox dualist position: the UNCRC is not part of UK domestic law and cannot be used to determine compatibility under the Human Rights Act 1998 except where it informs the interpretation of an ECHR right with a direct subject-matter connection. The case illustrates the tension within the Court regarding the role of international human rights instruments in domestic adjudication, with Lord Kerr’s dissent representing a notably expansive view.

The decision is significant for welfare claimants, particularly lone parents, demonstrating the limited scope for challenging structural welfare reforms on discrimination grounds where Parliament has carefully considered the measure. However, the judgments of Lord Carnwath, Lady Hale and Lord Kerr (a majority on this discrete point) expressed concerns about whether the best interests of children had been adequately considered in formulating the Regulations, signalling political and policy issues for Government to address through its review process rather than through judicial intervention. The decision marks an important application of the Humphreys approach to welfare benefits cases and provides guidance on the boundaries between political and judicial assessment of socio-economic policy.

Verdict: The appeal was dismissed by a majority of 3-2. The Supreme Court held that the Benefit Cap (Housing Benefit) Regulations 2012 were not incompatible with Article 14 ECHR read with A1P1, as the indirect discrimination against women had an objective and reasonable justification and was not manifestly without reasonable foundation.

Source: R (on the application of SG & Ors) v Secretary of State for Work and Pensions (SSWP) [2015] UKSC 16