| 1 | Sat 14 Aug 2021 | 2 2-4 v Enfield TownCarshalton Athletic 2-4 Enfield Town | Isthmian League - Premier Division |
| 2 | Sat 21 Aug 2021 | 20-0 v MargateMargate 0-0 Carshalton Athletic | Isthmian League - Premier Division |
| 3 | Sat 28 Aug 2021 | 22-0 v Bishop's StortfordCarshalton Athletic 2-0 Bishop's Stortford | Isthmian League - Premier Division |
| 4 | Sat 11 Sep 2021 | 20-1 v Bognor Regis TownBognor Regis Town 1-0 Carshalton Athletic | Isthmian League - Premier Division |
| 5 | Sat 2 Oct 2021 | 21-3 v Cray WanderersCarshalton Athletic 1-3 Cray Wanderers | Isthmian League - Premier Division |
| 6 | Sat 9 Oct 2021 | 21-1 v Wingate & FinchleyWingate & Finchley 1-1 Carshalton Athletic | Isthmian League - Premier Division |
| 7 | Sat 23 Oct 2021 | 21-1 v Haringey BoroughHaringey Borough 1-1 Carshalton Athletic | Isthmian League - Premier Division |
| 8 | Sat 30 Oct 2021 | 2 3-2 v HorshamHorsham 2-3 Carshalton Athletic | Buildbase FA Trophy Third Qualifying Round |
| 9 | Tue 2 Nov 2021 | 20-1 v LewesLewes 1-0 Carshalton Athletic | Isthmian League - Premier Division |
| 10 | Sat 6 Nov 2021 | 26-1 v Brightlingsea RegentCarshalton Athletic 6-1 Brightlingsea Regent | Isthmian League - Premier Division |
| 11 | Sat 13 Nov 2021 | 21-2 v Welwyn Garden CityWelwyn Garden City 2-1 Carshalton Athletic | Buildbase FA Trophy First Round |
| 12 | Mon 22 Nov 2021 | 20-1 v HorshamCarshalton Athletic 0-1 Horsham | Isthmian League - Premier Division |
| 13 | Sat 27 Nov 2021 | 23-3 v LeatherheadCarshalton Athletic 3-3 Leatherhead | Isthmian League - Premier Division |
| 14 | Tue 30 Nov 2021 | 22-1 v Potters Bar TownPotters Bar Town 1-2 Carshalton Athletic | Isthmian League - Premier Division |
| 15 | Sat 4 Dec 2021 | 21-1 v Bishop's StortfordBishop's Stortford 1-1 Carshalton Athletic | Isthmian League - Premier Division |
| 16 | Sat 11 Dec 2021 | 2 3-1 v MersthamCarshalton Athletic 3-1 Merstham | Isthmian League - Premier Division |
| 17 | Sat 1 Jan 2022 | 21-2 v Corinthian-CasualsCorinthian-Casuals 2-1 Carshalton Athletic | Isthmian League - Premier Division |
| 18 | Mon 3 Jan 2022 | 2 2-1 v WorthingCarshalton Athletic 2-1 Worthing | Isthmian League - Premier Division |
| 19 | Mon 10 Jan 2022 | 2 1-0 v KingstonianCarshalton Athletic 1-0 Kingstonian | Isthmian League - Premier Division |
| 20 | Sat 15 Jan 2022 | 21-0 v Bowers & PitseaBowers & Pitsea 0-1 Carshalton Athletic | Isthmian League - Premier Division |
| 21 | Sat 22 Jan 2022 | 2 4-5 v Cray WanderersCray Wanderers 5-4 Carshalton Athletic | Isthmian League - Premier Division |
| 22 | Tue 25 Jan 2022 | 2 1-2 v Enfield TownEnfield Town 2-1 Carshalton Athletic | Isthmian League - Premier Division |
| 23 | Sat 29 Jan 2022 | 22-1 v CheshuntCarshalton Athletic 2-1 Cheshunt | Isthmian League - Premier Division |
| 24 | Sat 5 Feb 2022 | 21-1 v Folkestone InvictaFolkestone Invicta 1-1 Carshalton Athletic | Isthmian League - Premier Division |
| 25 | Sat 12 Feb 2022 | 21-2 v LewesCarshalton Athletic 1-2 Lewes | Isthmian League - Premier Division |
| 26 | Tue 15 Feb 2022 | 22-2 v HorshamHorsham 2-2 Carshalton Athletic | Isthmian League - Premier Division |
| 27 | Sat 19 Feb 2022 | 22-0 v Wingate & FinchleyCarshalton Athletic 2-0 Wingate & Finchley | Isthmian League - Premier Division |
| 28 | Sat 26 Feb 2022 | 20-1 v East Thurrock UnitedEast Thurrock United 1-0 Carshalton Athletic | Isthmian League - Premier Division |
| 29 | Sat 26 Mar 2022 | 20-5 v HornchurchCarshalton Athletic 0-5 Hornchurch | Isthmian League - Premier Division |
| 30 | Sat 2 Apr 2022 | 2 1-1 v KingstonianKingstonian 1-1 Carshalton Athletic | Isthmian League - Premier Division |
| 31 | Sat 9 Apr 2022 | 20-0 v MargateCarshalton Athletic 0-0 Margate | Isthmian League - Premier Division |
| 32 | Sat 16 Apr 2022 | 2 0-5 v WorthingWorthing 5-0 Carshalton Athletic | Isthmian League - Premier Division |
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