| Name | Deductibility Code |
| Bay Chorale Inc. | -- |
| Caro Athletic Boosters Inc. | -- |
| Caro Boys Basketball Club | -- |
| Caro Church of Christ | -- |
| Caro Community Hospital | -- |
| Caro Community Hospital Endowment Foundation | -- |
| Caro Prayer Room | -- |
| Caro Youth Football | -- |
| Cass River Pet Friendz | -- |
| Christian Community Center of Tuscola County | -- |
| DAR E Advisory Board of Tuscola County | -- |
| Friends of Caro Area District Libra | -- |
| Human Development Commission | -- |
| Humane Society of Tuscula Co | -- |
| Justin Decker Memorial Foundation | -- |
| Ladies Auxiliary to Post No 4164 Veterans of Foreign Wars of the US | 6 |
| Living Waters Chapel | -- |
| Positive Alternatives | -- |
| Restoration Outreach Center | -- |
| Rolka Scholarship Foundation | 4 |
| Scears Foundation of Akron Michigan | 4 |
| The Watrousville-Caro Area Historical Society | -- |
| Thumb Area Big Brothers Big Sisters | -- |
| Thumb Nature Areas-Indianfields Twp-Caro Exchange Club Habitat Org | -- |
| Tuscola County Child Abuse and Neglect C A N Council | -- |
| Tuscola County Christmas in July Inc. | -- |
| Tuscola County Community Foundation | -- |
| Tuscola Enterprise Facilitation | -- |
| Tuscola Homeless Coalition | -- |
| Tuscola Place for Peace | -- |