This document summarizes a presentation on the economic impact of the COVID-19 pandemic. It discusses three potential scenarios for the duration of the outbreak lasting 3, 6, or 12 months and their implications on the UK economy and public finances. It finds that GDP could contract by 10-24% in 2020, the largest annual fall in 300 years. Public sector borrowing is projected to rise to peacetime highs, with public debt peaking at between 100-150% of GDP. Several policy challenges are outlined, including keeping people and businesses active through job support programs, financing large fiscal deficits, and restoring long-term fiscal sustainability after the outbreak ends.