(Adds other proposals in paragraphs 9-10, 14-18)

By Kim Dixon

WASHINGTON, May 11 (Reuters) - The Obama administration proposed on Monday to raise nearly $60 billion by closing loopholes including those related to the estate tax, and also revived a bid to cap deductions wealthy individuals can claim.

Funds raised from the estate tax and other changes would go to beef up a healthcare reserve fund, a $634 billion pot of money President Barack Obama wants to use to revamp the healthcare system and expand insurance to tens of millions of Americans who lack it.

The proposals "take on what we believe are a series of unjustifiable loopholes, unjustifiable tax breaks that we simply can not afford," said a senior administration official, who could not be identified under the ground rules of a briefing for reporters.

The White House wants to raise $24 billion over 10 years by tightening rules for the estate tax, a levy on the portion of inheritance that exceeds an amount excluded by law.

Currently, the first $3.5 million of an individual's inheritance and $7 million of a couple's inheritance are exempted. The Obama administration would change how assets are valued.

Lawmakers are likely to tackle the estate tax issue this year to avoid confusing changes over the next few years. The tax-cut package enacted under President George W. Bush provides for the estate tax to be repealed for fiscal year 2010 -- Oct. 1, 2009 to Sept. 30, 2010.

If Congress fails to act, estate taxes in fiscal 2011 would revert back to levels that existed before Bush took office. The exemption would fall to $1 million and the top rate would move back to 55 percent from the current top rate of 45 percent.