The National Tax Lien Association (NTLA) was established in 1997 as the only national non-profit trade association dedicated to America's tax sale industry. As the industry's centralized voice, we promote the benefits of tax lien and tax deed sales as reliable income for municipal, county and state budgets. We provide unbiased, quality education and a path to the only professional designation in the tax sale industry, Certified Tax Lien Professional (CTLP)®.