House Ways and Means Chairman Sander Levin is leaving it all on the table before the elections.

The Michigan Democrat, who is expected to face a challenge by Rep. Richard Neal (D-Mass.) to helm the tax-writing panel should Democrats maintain the majority, is planning to empty his entire campaign war chest this cycle to help elect Democrats, according to his chief of staff, Hilarie Chambers.

“Setting aside the money necessary to cover campaign expenses, Rep. Levin’s charge to us is to spend all of our remaining campaign money and Leadership funds to help maintain the Majority,” Chambers said in an e-mail.

Levin doesn’t have a lot left to spend. He had $306,000 in his re-election committee and just more than $3,300 in his leadership political action committee, according to Federal Election Commission records filed in October.

This month Levin contributed $150,000 to state parties to pay for mailers and get-out-the-vote efforts. He also gave $30,000 directly to Democratic candidates, Chambers said.

Over the two-year cycle, Levin has contributed $520,000 to the Democratic Congressional Campaign Committee and given or raised $1.5 million for candidates.

Neal is also continuing to write checks to Democrats. Neal has paid $500,000 to the DCCC in party dues, $250,000 more than his DCCC goal. He has raised $650,000 for the DCCC.

The Massachusetts Democrat, who had nearly $2.5 million in his campaign account as of Oct. 19, will continue to contribute to Democratic candidates through Election Day, according to a Neal spokesman.

“He’s going to continue what he’s been doing all along. I think that’s a reflection of his spending,” the spokesman said.