Clubs know who they will face next season after the FA released their league allocations.
Promoted Folkestone Invicta take their place in National League South alongside fellow promoted teams Billericay, Farnham and Walton & Hersham plus Braintree and Truro, who were relegated from the National League.
There are seven new teams in Isthmian Premier in the shape of relegated Eastbourne Borough and Enfield Town plus promoted sides AFC Whyteleafe, Leatherhead, Maldon & Tiptree, Stanway Rovers and Three Bridges.
Chichester City have been moved across to the Southern League Premier South division.
Promoted Whitstable Town and Punjab United are placed in Isthmian South East, alongside relegated Cray Valley.
Also in that division will be either Guernsey or Peacehaven & Telscombe, along with Horley Town, Steyning Town and South Park, who have been moved across. Jersey Bulls have been switched to the Isthmian South Central.
In the Southern Counties East League, there are 18 teams in both the Premier Division and Division 1.
The Premier Division includes Division 1 champions AFC Greenwich Borough and play-off winners SE Dons, along with relegated Beckenham Town.
There is no lateral movement, however, despite VCD Athletic folding at the end of this season.
In Division 1, relegated Hythe Town and Stansfeld are joined by Minster, who are promoted from the Kent County League.
There is a reprieve for second-bottom Welling Town, who benefit from a new regulation this season that allows for regional reprieves where divisions could or do go below 18 clubs.
League constitutions 2026/27: National League South: AFC Totton, Billericay Town, Braintree Town, Chelmsford City, Chesham United, Dagenham & Redbridge, Dorking Wanderers, Dover Athletic, Ebbsfleet United, Farnborough, Farnham Town, Folkestone Invicta, Hampton & Richmond, Hemel Hempstead, Horsham, Maidenhead United, Maidstone United, Salisbury, Slough Town, Tonbridge Angels, Torquay United, Truro City, Walton & Hersham, Weston-super-Mare.
Isthmian Premier: AFC Whyteleafe, Aveley, Brentwood, Town, Burgess Hill Town, Carshalton Athletic, Chatham Town, Cheshunt, Cray Wanderers, Dartford, Dulwich Hamlet, Eastbourne Borough, Enfield Town, Leatherhead, Lewes, Maldon & Tiptree, Ramsgate, St Albans City, Stanway Rovers, Three Bridges, Welling United, Whitehawk, Wingate & Finchley.
Isthmian South East: AFC Croydon Athletic, Ashford United, Broadbridge Heath, Cray Valley, Crowborough Athletic, Deal Town, Eastbourne Town, Erith Town, Faversham Town, Guernsey or Peacehaven & Telscombe, Hastings United, Herne Bay, Horley Town, Margate, Merstham, Punjab United, Sevenoaks Town, Sheppey United, Sittingbourne, South Park (Reigate), Steyning Town, Whitstable Town.
Southern Counties East Premier Division: AFC Greenwich Borough, Bearsted, Beckenham Town, Chislehurst Glebe, Corinthian, Erith & Belvedere, Faversham Strike Force, Fisher, Hollands & Blair, Holmesdale, Kennington, Larkfield & New Hythe, Phoenix Sports, Rusthall, SE Dons, Snodland Town, Sutton Athletic, Tunbridge Wells.
Southern Counties East Division 1: Banstead Athletic, Bridon Ropes, Croydon, FC Elmstead, Greenways, Halls, Hythe Town, Lewisham Borough, Lordswood, Lydd Town, Minster, Rochester United, Sheppey Sports, SC Thamesmead, Stansfeld, Staplehurst Monarchs, Tooting Bec, Welling Town.
