Behind closed doors in homes across the UK, overseas domestic workers are being exploited – trapped and unable to leave, even when facing abuse. Invisible, isolated, and dependent on their employer, they face risks that can quickly escalate into serious harm.
As independent anti-slavery commissioner, I have consistently argued that our response to modern slavery must focus on prevention, not simply intervention after harm has occurred. Yet 14 years on from changes to the overseas domestic worker visa, we are still falling short of that principle. The structure of this visa continues to create conditions in which exploitation can develop and escalate, rather than being stopped at an early stage.
For many years, the charity Kalayaan has documented the experiences of overseas domestic workers, including indicators of exploitation such as restriction of movement, confiscation of documents, and threats linked to immigration status. These are warning signs of harm – often visible long before a case reaches the threshold of modern slavery. The cases of domestic servitude that are formally identified are only the tip of the iceberg; they do not capture the full extent of exploitation taking place behind closed doors or the many workers still in need of support.
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This is fundamentally an issue affecting women and girls. Domestic work is overwhelmingly undertaken by women, many of whom arrive in the UK already dependent on their employer – travelling with them and living in their household. That combination of gender, migration status, and isolation creates a heightened risk of coercion and control.
In a domestic setting, hidden from public view, that risk can escalate quickly. What begins as dependency can become restriction, and in the most serious cases, forced labour or servitude. I have heard directly from workers who felt they had no safe way to leave, even when conditions became abusive. When an individual’s immigration status, income, and accommodation are all tied to one employer, the balance of power is stark. When that power is abused, exploitation can deepen rapidly.









