See main article: 2022–23 Primera Federación.
The 2023 Primera Federación play-offs (Playoffs de Ascenso or Promoción de Ascenso) are the final play-offs for promotion from 2022–23 Primera Federación to the 2023–24 Segunda División.
Teams ranked second through fifth in each of the two groups will qualify for the promotion play-off, which will determine the last two promotion spots. The eight qualified teams will be drawn into two fixed brackets, each of which will contain the second and fourth-place finishers from one group and the third and fifth-place finishers from the other. All ties will consist of a two-legged knockout series. In case of draws, an overtime period will be played; if the match is still tied following the overtime, the team which achieved a higher regular season finish will be proclaimed the winner.[1]
As of this season, the RFEF recovered the two-legged knockout system, due to the complaints filed against the single knockout system at a neutral venue that had been implemented after COVID-19 and the subsequent reform of the football leagues organized by the RFEF.[2]
| Group | Position | Team |
|---|---|---|
| 1 | 2nd | Alcorcón |
| 2 | 2nd | Eldense |
| Group | Position | Team | |
|---|---|---|---|
| 1 | 3rd | Real Madrid Castilla | |
| 2 | 3rd | Castellón |
| Group | Position | Team |
|---|---|---|
| 1 | 4th | Deportivo La Coruña |
| 2 | 4th | Barcelona Atlètic |
| Group | Position | Team |
|---|---|---|
| 1 | 5th | Celta Vigo B |
| 2 | 5th | Real Sociedad B |
| Group | Position | Team |
|---|---|---|
| 1 | 2nd | Alcorcón |
| 2 | 2nd | Eldense |
| Group | Position | Team | |
|---|---|---|---|
| 1 | 3rd | Real Madrid Castilla | |
| 2 | 3rd | Castellón |