How Long Does ESA Last? March 11th, 2021 Each ESA letter is valid for 12 months after you obtain them from a certified health professional. After one year, you will have to renew your support animal letter. Related Posts 7 of the Best Vegetables for Dogs to Add to Your Pet’s Diet What is the Best Pet for Anxiety? Michael Holston a.k.a. The Real Tarzann highlights the educational impact of YouTube and Instagram 10 Awesome Facts About Cuban Dogs You Will Love to Read [therapypet_step1_form show_in_mobile="1"]