Our objective was to characterize the proportion of U.S. mental health clinics that offered LGBT-tailored mental health services between 2014 and 2018. We used data from the National Mental Health Services Survey (NMHSS) to construct a mixed logistic model of availability of LGBT-tailored mental health services over time, by region (Northeast, South, Midwest and West), and by facility type (Veterans Administration, inpatient/residential, outpatient, community mental health centers and mixed). Our results show that the overall proportion of mental health clinics that offered LGBT-tailored services decreased from 2014 to 2018. Our results also indicate that Veteran Affairs clinics and facilities in the West and Northeast were most likely to offer LGBT-tailored mental health services. Given the temporal, regional, and facility gaps in LGBT-tailored mental health services availability, more effort should be dedicated to addressing this disparity.