| 14 Nov 18 | A. Palmer Alex Palmer |  West Bromwich AlbionWBA | → |  Oldham AthleticOLD | Loan |
| 02 Oct 18 | B. Sako Bakary Sako | XXX | → | West Bromwich AlbionWBA | Free |
| 14 Sept 18 | W. Hoolahan Wes Hoolahan | XXX | → | West Bromwich AlbionWBA | Free |
| 30 Aug 18 | N. Chadli Nacer Chadli | West Bromwich AlbionWBA | → |  AS MonacoMON | 10,000,000 |
| 30 Aug 18 | N. Chadli Nacer Chadli | West Bromwich AlbionWBA | → | AS MonacoMON | 10,000,000 |
| 28 Aug 18 | T. Mears Tyrone Mears | XXX | → | West Bromwich AlbionWBA | Free |
| 17 Aug 18 | A. Nyom Allan Nyom | West Bromwich AlbionWBA | → |  LeganésLEG | Loan |
| 17 Aug 18 | A. Nyom Allan Nyom | West Bromwich AlbionWBA | → | LeganésLEG | Loan |
| 07 Aug 18 | D. O'Shea Dara O'Shea | West Bromwich AlbionWBA | → |  Exeter CityEXE | Loan |
| 06 Aug 18 | D. Gayle Dwight Gayle |  Newcastle UnitedNEW | → | West Bromwich AlbionWBA | Loan |
| 06 Aug 18 | S. Rondón Salomón Rondón | West Bromwich AlbionWBA | → | Newcastle UnitedNEW | Loan |
| 06 Aug 18 | D. Gayle Dwight Gayle | Newcastle UnitedNEW | → | West Bromwich AlbionWBA | Loan |
| 06 Aug 18 | S. Rondón Salomón Rondón | West Bromwich AlbionWBA | → | Newcastle UnitedNEW | Loan |
| 03 Aug 18 | J. Fitzwater Jack Fitzwater | West Bromwich AlbionWBA | → |  WalsallWAL | Loan |
| 03 Aug 18 | T. Adarabioyo Tosin Adarabioyo |  Manchester CityMNC | → | West Bromwich AlbionWBA | Loan |
| 03 Aug 18 | T. Adarabioyo Tosin Adarabioyo | Manchester CityMNC | → | West Bromwich AlbionWBA | Loan |
| 03 Aug 18 | K. Wilson Kane Wilson | West Bromwich AlbionWBA | → | WalsallWAL | Loan |
| 31 Jul 18 | B. Myhill Boaz Myhill | XXX | → | West Bromwich AlbionWBA | Free |
| 28 Jul 18 | C. Townsend Conor Townsend |  Scunthorpe UnitedSCU | → | West Bromwich AlbionWBA | Undisclosed |
| 24 Jul 18 | H. Barnes Harvey Barnes |  Leicester CityLEI | → | West Bromwich AlbionWBA | Loan |
| 24 Jul 18 | H. Barnes Harvey Barnes | Leicester CityLEI | → | West Bromwich AlbionWBA | Loan |
| 22 Jul 18 | J. McClean James McClean | West Bromwich AlbionWBA | → |  Stoke CitySTK | 5,000,000 |
| 16 Jul 18 | K. Bartley Kyle Bartley |  Swansea CitySWA | → | West Bromwich AlbionWBA | Undisclosed |
| 16 Jul 18 | J. Bond Jonathan Bond |  ReadingREA | → | West Bromwich AlbionWBA | Free |
| 05 Jul 18 | B. Foster Ben Foster | West Bromwich AlbionWBA | → |  WatfordWAT | Undisclosed |
| 05 Jul 18 | B. Foster Ben Foster | West Bromwich AlbionWBA | → | WatfordWAT | Undisclosed |
| 03 Jul 18 | S. Johnstone Sam Johnstone |  Manchester UnitedMAN | → | West Bromwich AlbionWBA | Undisclosed |
| 03 Jul 18 | S. Johnstone Sam Johnstone | Manchester UnitedMAN | → | West Bromwich AlbionWBA | Undisclosed |
| 08 Jun 18 | J. Evans Jonny Evans | West Bromwich AlbionWBA | → | Leicester CityLEI | Undisclosed |
| 31 Jan 18 | Jasko Keranovic | West Bromwich AlbionWBA | → |  KilmarnockKIL | Loan |
| 31 Jan 18 | Jasko Keranovic | West Bromwich AlbionWBA | → | KilmarnockKIL | Loan |
| 31 Jan 18 | K. Howkins Kyle Howkins | West Bromwich AlbionWBA | → |  Port ValeVALE | Loan |
| 31 Jan 18 | J. Fitzwater Jack Fitzwater | West Bromwich AlbionWBA | → | WalsallWAL | Loan |
| 31 Jan 18 | T. Roberts Tyler Roberts | West Bromwich AlbionWBA | → |  Leeds UnitedLEE | Undisclosed |
| 31 Jan 18 | T. Roberts Tyler Roberts | West Bromwich AlbionWBA | → | Leeds UnitedLEE | Undisclosed |
| 29 Jan 18 | D. Sturridge Daniel Sturridge |  LiverpoolLIV | → | West Bromwich AlbionWBA | Loan |
| 29 Jan 18 | A. Gabr Ali Gabr | ZXXZamalekZamalek | → | West Bromwich AlbionWBA | Loan |
| 27 Jan 18 | S. Donnellan Shaun Donnellan | West Bromwich AlbionWBA | → |  Yeovil TownYEO | Free |
| 19 Jan 18 | K. Edwards Kyle Edwards | West Bromwich AlbionWBA | → |  Cheltenham TownCHL | Loan |
| 19 Jan 18 | T. Campbell Tahvon Campbell | West Bromwich AlbionWBA | → |  Forest Green RoversFGR | Loan |
| 11 Jan 18 | K. Wilson Kane Wilson | West Bromwich AlbionWBA | → | Exeter CityEXE | Loan |
| 01 Jan 18 | A. Hegazi Ahmed Hegazi | AAXAl AhlyAl Ahly | → | West Bromwich AlbionWBA | Undisclosed |