Investments, usually in limited partnership, that can protect of defer shelter) part of the income from current taxes. Under current law, passive leases can be applied up to passive income. Typically, a large amount of capital along with a significant amount of debt is needed. Allowable deductions are typically allowed only to the amount at-risk. A tax shelter is advantageous by the taxpayers in high tax brackets so they can take losses from it to reduce their taxable income. A number of real estate tax shelter exist. there is a penalty of 1% of the total amount invested for the failure to register a tax shelter. The failure to report a tax shelter identification number has a penalty of %250. Penalties for "abusive" shelters may be staggering. Tax shelters have been significantly restricted in recent years.