| february 22 2019 |  T. Paers |  Tullamore United | None | RSD1 921 312 |
| january 26 2019 | G. Berrigan | Tullamore United | UC Cork 2012 | RSD13 277 660 |
| january 25 2019 | O. Fagan | Tullamore United | UC Cork 2012 | RSD7 063 039 |
| january 3 2019 |  L. Gates | Tullamore United | UC Cork 2012 | RSD12 938 525 |
| january 1 2019 |  L. Ananas | Tullamore United | None | RSD2 040 617 |
| december 11 2018 | J. Shannon | Tullamore United |  FC Serravalle #5 | Moved with manager |
| december 11 2018 | G. Lynch | Tullamore United | FC Serravalle #5 | Moved with manager |
| december 11 2018 | P. Beary | Tullamore United | FC Serravalle #5 | Moved with manager |
| december 10 2018 | K. Kerrin | Tullamore United |  Coventry #6 (On loan) | (RSD160 298) |
| december 10 2018 |  D. Slegers | Canvey Island | Tullamore United | RSD51 625 201 |
| december 9 2018 |  R. Hugonin | Tullamore United |  Olympique Marseille #12 (On loan) | (RSD303 839) |
| december 9 2018 | K. Hinty | Tullamore United |  Puerto Cabello | RSD11 386 140 |
| december 9 2018 |  S. Cresswell | Tullamore United | London United #13 | RSD19 593 479 |
| december 7 2018 | C. Cavanagh | Tullamore United | FC Latgale | RSD13 452 444 |
| october 21 2018 |  C. Mbacké | QiangSheng Group | Tullamore United | RSD5 470 710 |
| october 19 2018 | S. King | Tullamore United |  Evansville | RSD9 529 000 |
| october 17 2018 |  T. Ðức Quyền |  FC Juba #3 | Tullamore United | RSD27 886 561 |
| october 17 2018 | R. Hugonin | Tullamore United | AS Tourcoing #2 (On loan) | (RSD196 587) |
| october 16 2018 | T. D'Amboise | Tullamore United | Royal Tunbridge Wells City | RSD10 204 478 |
| october 15 2018 |  E. Bayless |  Out Of Africa | Tullamore United | RSD43 803 830 |
| october 14 2018 | J. Shannon | Tullamore United |  FK Plunge (On loan) | (RSD331 891) |
| october 13 2018 |  Š. Ivanović | Tullamore United | South Shields FC | RSD7 142 108 |
| october 13 2018 | A. Burke | Tullamore United | Heanor | RSD22 192 801 |
| october 13 2018 |  T. Ap | Tullamore United |  FC Guiyang #19 | RSD18 638 240 |
| october 13 2018 | P. Beary | Tullamore United |  Submarine FC (On loan) | (RSD407 584) |
