This webinar discusses sales tax filing tips for online sellers. It covers finding sales tax filing due dates, which vary by state but are typically monthly, quarterly, or annually. It also discusses how to gather sales and tax data from all sales channels, common mistakes like not collecting tax on all channels, and how to use the TaxJar tool to simplify the filing process. The webinar emphasizes the importance of filing on time to avoid penalties and collecting accurately to avoid audits.