As business draws to a close on the penultimate day of the 109th Congress, House and Senate negotiators have substantially agreed on the terms of a tax extenders package. Cost: $45 billion over 10 years. The package features a broader array of tax break extensions and modifications than had been part of the package in the reconciliation, pension, and trifecta bills earlier in the year (the largest element of which is the R&D credit, at $16.5 billion). Cost: $35.9 billion It also includes:

• other, miscellaneous provisions, most notably, for surface mining reclamation expensing. Cost: $4.7 billion
• nearly a dozen -- mostly renewable -- energy tax provisions. Cost: $3.4 billion
• several health savings accounts provisions. Cost: $1 billion

The JCT has published itemized details of the package in its current form. The House is expected to vote on the package late this evening and send it to the Senate, which is expected take it up tomorrow.