Yes, all four teams from the same division can make the NFL playoffs.
Under the expanded 7-team conference playoff structure, each conference sends 4 division champions and 3 wild-card teams. If the three best non-division winners in a conference all originate from the same four-team division, they sweep Seeds 5, 6, and 7, sending all four division franchises to January football.
How Seeding Would Work for a 4-Team Division Sweep
| Playoff Seed | Qualification Basis | Wild Card Weekend Matchup | Home-Field Advantage |
|---|---|---|---|
| Seed 1, 2, 3, or 4 | Division Winner | Hosts Seed 7, 6, or 5 (or Bye if Seed 1) | Guaranteed Home Game |
| Seed 5 | Top Wild Card (2nd in Division) | Travels to play Seed 4 (Lowest Division Champ) | Road Game |
| Seed 6 | Second Wild Card (3rd in Division) | Travels to play Seed 3 | Road Game |
| Seed 7 | Third Wild Card (4th in Division) | Travels to play Seed 2 | Road Game |
Why This Was Impossible Prior to 2020
From 1990 through 2019, the NFL postseason featured six teams per conference: four division champions and only two wild-card berths. Under that 12-team system, a division could qualify a maximum of three teams (1 champion + 2 wild cards). The addition of the 7th playoff seed in the 2020 Collective Bargaining Agreement created the third wild-card spot, unlocking the mathematical possibility of a four-team divisional clean sweep.