Fair Share Minimum Tax Act of 1985

Fair Share Minimum Tax Act of 1985 - Amends the Internal Revenue Code to provide for a single alternative minimum tax for both individuals and corporations. Imposes such tax on taxpayers having alternative minimum taxable income in excess of $70,000. Sets the amount of such tax at the excess of: (1) five-sixths of one percent for individuals or five-sixteenths of one percent for corporations for each $1,000 by which alternative minimum taxable income exceeds $70,000; over (2) the regular tax for the taxable year.

Phases-out the deduction for individuals for alternative minimum tax itemized deductions by two percent for each $1,000 that minimum taxable income exceeds $100,000. Limits the itemized deduction for housing interest to interest paid for principal residences and allows an itemized deduction for State and local income and real property taxes.

Repeals provisions relating to the present minimum tax on corporations.

Modifies provisions relating to items of tax preference to provide that: (1) all depreciable property regardless of whether subject to a lease shall be included as a tax preference item; (2) present class life rather than accelerated cost recovery periods must be used for depreciable property; and (3) the net income offset for intangible drilling costs shall be disallowed.

Adds as items of tax preferences for all taxpayers: (1) interest from newly issued tax-exempt securities; (2) gain on installment sales; (3) income attributable to life insurance, annuity, or endowment contracts; (4) net losses from activities in which an individual is not a material participant; and (5) certain deductions of life insurance companies.

Provides that tax preferences which presently apply to personal holding companies shall apply to all corporations.

Revises the method of calculating the tax preference for bad debt reserves and interest on debt to carry tax-exempt obligations for financial institutions.

Adds as items of tax preference for corporations: (1) exempt foreign trade income; (2) deposits in, and earnings on, certain maritime construction funds; and (3) income received under completed contract accounting.

Adds as items of tax preference for individuals: (1) untaxed portions of social security benefits; (2) earned income of citizens and residents living abroad; (3) the increase in nonforfeitable pension benefits; (4) the deduction for two-earner married couples; (5) health-related benefits excluded from gross income; and (6) employer contributions to group term life insurance.

Revises requirements for the election to avoid minimum tax on qualified expenditures.

Sets forth effective dates and transitional rules.