I rescue horses can I right any of that off

[macuser_22]

Possible if it is for a recognized charitable organization then you might be able to deduct mileage and expenses, not donated time.

How to check whether an organization can receive deductible charitable contributions.   You can ask any organization whether it is a qualified organization, and most will be able to tell you. Or go to IRS.gov. Click on “Tools” and then on “Exempt Organizations Select Check” (www.irs.gov/Charities-&-Non-Profits/Exempt-Organizations-Select-Check). This online tool will enable you to search for qualified organizations.

See IRS Pub 526 for information.

https://www.irs.gov/publications/p526/ar02.html#en_US_2015_publink1000229641