MicroStrategy (MSTR) founder and executive chairman Michael Saylor has lost a bid to dismiss claims that he failed to pay personal income taxes, interest and penalties due for Washington, D.C., according to a ruling on Feb. 28.

The court did, however, dismiss claims against Saylor and the company that they had conspired to violate Washington, D.C.’s False Claims Act.

A status conference in the tax evasion case against Saylor is scheduled to be held on March 10.

The District of Columbia sued Saylor and his company last August, alleging Saylor never paid any income taxes in the district in the more than 10 years he had lived there, and that MicroStrategy had conspired to help him do so.

The attorney general’s office claimed Saylor avoided more than $25 million in taxes to the district and is seeking back taxes, damages, civil penalties, expenses and fees.