A guarantor is a person who agrees to take legal responsibility for a tenant’s financial obligations if the tenant cannot meet them. For expats, guarantors are often requested by landlords or letting agents when a tenant has limited UK credit history, is new to the country, or does not meet income requirements. Expats in the UK are commonly asked to provide a guarantor who is a UK resident, has a stable income, and a strong credit record. The guarantor signs a legal agreement confirming they will cover unpaid rent, damages, or other costs if the tenant defaults. For expats in the UK who cannot provide a guarantor, landlords may offer alternatives, such as paying several months’ rent in advance or using a professional guarantor service for a fee. Understanding the guarantor requirement helps expats prepare in advance and avoid delays when securing a rental property.