WASHINGTON -- The Obama administration will propose $60 billion in new tax increases over 10 years on wealthy estates, businesses and others to make up for shortfalls in its fund to pay for an expensive overhaul of the health-care system.

The measures go beyond plans the White House has announced in the past few weeks. Officials said that upon further analysis they realized that they had overestimated savings and tax increases proposed in February to help pay the bill.

The full proposals will come Monday when the White House releases a detailed analysis of its budget blueprint. Administration officials described the new proposals not as tax increases, but as eliminating "tax loopholes."

One element would raise an estimated $24 billion over 10 years by tightening estate-tax rules, giving taxpayers less flexibility to minimize their liability on inherited goods by claiming a different value on the same item for different transactions.

A second element, which would raise $10 billion over 10 years, would require businesses and others who make payments to corporations to report such payments to the Internal Revenue Service. Under current law, payments to individuals are required to be reported on a 1099 form, but no such requirements exist for similar payments to corporations. The goal is to make sure that the recipient corporations report all their taxable income.

How to pay for a health-care overhaul estimated to cost more than a trillion dollars over a decade is one of the trickiest questions facing the administration and Congress. The White House has proposed a combination of health-care spending cuts and tax increases.

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