Banks get $140 billion tax break on top of bailout money

"Did the Treasury Department have the authority to do this? I think almost every tax expert would agree that the answer is no," said George K. Yin, the former chief of staff of the Joint Committee on Taxation, the nonpartisan congressional authority on taxes. "They basically repealed a 22-year-old law that Congress passed as a backdoor way of providing aid to banks."

The story of the obscure provision underscores what critics in Congress, academia and the legal profession warn are the dangers of the broad authority being exercised by Treasury Secretary Henry M. Paulson Jr. in addressing the financial crisis. Lawmakers are now looking at whether the new notice was introduced to benefit specific banks, as well as whether it inappropriately accelerated bank takeovers.

The change to Section 382 of the tax code -- a provision that limited a kind of tax shelter arising in corporate mergers -- came after a two-decade effort by conservative economists and Republican administration officials to eliminate or overhaul the law, which is so little-known that even influential tax experts sometimes draw a blank at its mention. Until the financial meltdown, its opponents thought it would be nearly impossible to revamp the section because this would look like a corporate giveaway, according to lobbyists.

Andrew C. DeSouza, a Treasury spokesman, said the administration had the legal authority to issue the notice as part of its power to interpret the tax code and provide legal guidance to companies. He described the Sept. 30 notice, which allows some banks to keep more money by lowering their taxes, as a way to help financial institutions during a time of economic crisis. "This is part of our overall effort to provide relief," he said.

The Treasury itself did not estimate how much the tax change would cost, DeSouza said.

A Tax Law 'Shock'

The guidance issued from the IRS caught even some of the closest followers of tax law off guard because it seemed to come out of the blue when Treasury's work seemed focused almost exclusively on the bailout.

"It was a shock to most of the tax law community. It was one of those things where it pops up on your screen and your jaw drops," said Candace A. Ridgway, a partner at Jones Day, a law firm that represents banks that could benefit from the notice. "I've been in tax law for 20 years, and I've never seen anything like this."

More than a dozen tax lawyers interviewed for this story -- including several representing banks that stand to reap billions from the change -- said the Treasury had no authority to issue the notice.

Several other tax lawyers, all of whom represent banks, said the change was legal. Like DeSouza, they said the legal authority came from Section 382 itself, which says the secretary can write regulations to "carry out the purposes of this section."

Section 382 of the tax code was created by Congress in 1986 to end what it considered an abuse of the tax system: companies sheltering their profits from taxation by acquiring shell companies whose only real value was the losses on their books. The firms would then use the acquired company's losses to offset their gains and avoid paying taxes.

Lawmakers decried the tax shelters as a scam and created a formula to strictly limit the use of those purchased losses for tax purposes.

But from the beginning, some conservative economists and Republican administration officials criticized the new law as unwieldy and unnecessary meddling by the government in the business world.