The midfielder is available on a free transfer, having turned down the offer of a new contract with Northampton Town earlier this summer.
Sky Sports News says that the 28-year-old will sign a two-year contract with the League Two side.
Harding has previously had spells with Wycombe Wanderers, Aldershot Town and MK Dons.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Torquay UnitedTorquay Utd | 21 | 11 | 7 | 3 | 32 | 19 | 13 | 40 |
| 2 | Boreham WoodBoreham Wood | 21 | 11 | 6 | 4 | 36 | 17 | 19 | 39 |
| 3 | Weston-super-MareWeston | 21 | 11 | 6 | 4 | 34 | 23 | 11 | 39 |
| 4 | Truro CityTruro City | 21 | 11 | 5 | 5 | 33 | 19 | 14 | 38 |
| 5 | Dorking WanderersDorking | 22 | 10 | 7 | 5 | 44 | 31 | 13 | 37 |
| 6 | Farnborough TownFarnborough | 21 | 11 | 3 | 7 | 35 | 30 | 5 | 36 |
| 7 | Worthing | 21 | 10 | 6 | 5 | 33 | 30 | 3 | 36 |
| 8 | Eastbourne BoroughEastbourne | 21 | 10 | 6 | 5 | 29 | 26 | 3 | 36 |
| 9 | Maidstone UnitedMaidstone | 20 | 8 | 9 | 3 | 29 | 20 | 9 | 33 |
| 10 | Slough TownSlough | 21 | 9 | 5 | 7 | 38 | 27 | 11 | 32 |
| 11 | Tonbridge AngelsTonbridge Angels | 19 | 8 | 7 | 4 | 26 | 21 | 5 | 31 |
| 12 | AFC HornchurchHornchurch | 21 | 8 | 7 | 6 | 23 | 21 | 2 | 31 |
| 13 | Hampton & RichmondHampton | 21 | 8 | 6 | 7 | 29 | 22 | 7 | 30 |
| 14 | Chesham UnitedChesham | 19 | 8 | 4 | 7 | 30 | 29 | 1 | 28 |
| 15 | Chelmsford CityChelmsford City | 20 | 6 | 7 | 7 | 35 | 32 | 3 | 25 |
| 16 | Chippenham TownChippenham | 21 | 7 | 4 | 10 | 26 | 27 | -1 | 25 |
| 17 | Hemel Hempstead TownHemel Hemps. | 22 | 7 | 4 | 11 | 29 | 45 | -16 | 25 |
| 18 | Welling UnitedWelling United | 21 | 7 | 3 | 11 | 23 | 37 | -14 | 24 |
| 19 | Salisbury | 20 | 5 | 6 | 9 | 28 | 31 | -3 | 21 |
| 20 | Bath City | 21 | 5 | 4 | 12 | 15 | 29 | -14 | 19 |
| 21 | Aveley | 21 | 4 | 3 | 14 | 25 | 39 | -14 | 15 |
| 22 | Enfield Town | 21 | 4 | 3 | 14 | 22 | 46 | -24 | 15 |
| 23 | St Albans CitySt Albans City | 21 | 2 | 8 | 11 | 21 | 36 | -15 | 14 |
| 24 | Weymouth | 20 | 2 | 6 | 12 | 12 | 30 | -18 | 12 |
| > National League South Full Table | |||||||||
