2019–20 Southern Counties East Football League Premier Division

At the end of season 2018–19, three teams left the division: The remaining 17 teams, together with the following, will form the Premier Division for 2019–20:
 * Cray Valley Paper Mills: promoted to Isthmian League South East Division
 * Croydon: relegated to Division One
 * Rusthall: relegated to Division One
 * Greenwich Borough: relegated from Isthmian League South East Division
 * Erith & Belvedere: promoted from Division One
 * Welling Town: promoted from Division One