I hate to break it to you but there are dozen of authorities that can come around and inspect your property whenever they want - this slippery slope has long gone.<p>I have no problem with someone with the appropriate authority  politely knocking on my door to see if I am home if I am claiming a large tax refund for living there. The IRS and its fellow ilk are far more intrusive - the IRS makes my life a pain as it is and I am not even a US taxpayer.