SEISS stands for “Self-Employment Income Support Scheme,” which is a UK government program that provides financial support to self-employed individuals who have been negatively impacted by the COVID-19 pandemic. The scheme provides eligible individuals with a grant to cover lost income due to the pandemic, which is calculated as a percentage of their average monthly profits over the last three years. The SEISS has been rolled out in several stages since its introduction in 2020, and the eligibility criteria and amount of support provided have been subject to change.