List of highest Team scores in T20
| Pos | Team | Opposition | Overs | Score | Ground | Match Date |
| 1 | Afghanistan | v Ireland | 20 | 278/3 | Dehradun | 23 Feb 2019 |
| 2 | Czech Republic | v Turkey | 20 | 278/4 | Ilfov County | 30 Aug 2019 |
| 3 | Australia | v Sri Lanka | 20 | 263/3 | Pallekele | 6 Sep 2016 |
| 4 | Sri Lanka | v Kenya | 20 | 260/6 | Johannesburg | 14 Sep 2007 |
| 5 | India | v Sri Lanka | 20 | 260/5 | Indore | 22 Dec 2017 |
| 6 | Czech Rep. | v Bulgaria | 20 | 258/2 | Marsa | 12 May 2022 |
| 7 | Denmark | v Gibraltar | 20 | 256/5 | Waterloo | 29 Jun 2022 |
| 8 | New Zealand | v Scotland | 18.5 | 254/5 | Edinburgh | 29 Jul 2022 |
| 9 | Scotland | v Netherlands | 20 | 252/3 | Dublin (Malahide) | 16 Sep 2019 |
| 10 | Australia | v England | 20 | 248/6 | Southampton | 29 Aug 2013 |
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