Is Grover Norquist delinquent on his taxes?

Could Grover Norquist, America’s foremost advocate of cutting taxes, have forgotten about his?
 
Public documents suggest that Grover Norquist, president of the right-wing Americans for Tax Reform, has forgotten to pay his Washington, DC property taxes for the first half of this year.
 
As of April 18, 2006, Norquist’s taxes on his Washington, DC townhouse had not been paid for the period covering October 1, 2005 – March 31, 2006, the first half of the fiscal year. Norquist’s taxes were due on March 31.

Note: Norquist’s property has not received a late fee, so there’s a slim chance his check simply hasn’t been processed.
 
The anti-tax crusader currently owes $3,822.28 to the Office of Tax and Revenue, a figure that includes a charge of $394.21 in penalties and interest for failure to pay on time. More penalties will be added at the end of this month, should Norquist fail to submit payment.  While no payment appears in D.C. public records at TaxpayerServiceCenter.com, it's possible that the anti-tax crusader's check simply hasn't been processed. Washington D.C. property tax payments can be reviewed here.

The assessed value of Norquist’s residence at 810 Constitutional Avenue, NE, is $858,220; he purchased it almost four years ago for $770,000.
 
Norquist has become tied to the investigation into his longtime associate Jack Abramoff, who has pleaded guilty to tax evasion, fraud and conspiracy.