Reform proposals would give agency significant responsibility.
Installation of some improvements is included, but for other upgrades, you get credit only for material.
New rules, which start next year, may help weed out the crooks.
But the unlimited exclusion is likely to end this year, and the tax will stay alive.
This complex set of rules changes too often.
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The Market Dispatches column has been discontinued. Here's where to find the latest stock and business news on MSN Money, and the latest from market writer Charley Blaine.
MONEY & POLITICS
Breaking up big banks is an untested solution to the too big to fail problem that attempts to isolate and dismantle large, troubled institutions while protecting the rest of the economy.
Start of summer already? Better get shopping. But give the grills and new electronics a miss for now, according to the experts at Dealnews.
The IRS is struggling to combat identify thieves who file fraudulent tax returns in the names of older residents who don't need to file.