Alternative Minimum Tax

Once alternative minimum taxable income is computed and reduced by the exemption amount, what rate structure is applied to arrive at the tentative minimum tax?

1. A.The regular tax's ordinary progressive bracket schedule is applied directly to the same amount, with no separate AMT rate structure.Wrong. AMT does not reuse the regular tax's progressive brackets; it applies its own separate rate structure.
2. B.AMT applies its own separate, flatter rate structure to the exemption-reduced amount, rather than reusing the regular tax's progressive bracket schedule.Correct. AMT computes the tentative minimum tax using its own distinct, flatter rate structure.
3. C.The taxpayer's highest regular-tax marginal rate is applied as a single flat rate to the entire amount.Wrong. AMT does not borrow the taxpayer's top regular-tax bracket rate; it has its own defined rate structure.
4. D.No rate is applied at this stage; the exemption-reduced amount itself is the tentative minimum tax.Wrong. A rate structure must still be applied to the exemption-reduced amount to arrive at the tentative minimum tax.

Why: AMT applies its own separate, flatter rate structure to the exemption-reduced amount, rather than reusing the regular tax's progressive bracket schedule.

The alternative minimum tax (AMT) system requires certain taxpayers to do which of the following?

1. A.Recompute taxable income under a separate set of rules that add back certain preference items, calculate tax under both the regular and AMT systems, and pay whichever amount is higher.Correct. AMT recomputes income by adding back preference items, calculates tax under both systems, and the taxpayer pays the higher result.
2. B.Pay AMT only in addition to regular tax, as a flat surcharge unrelated to any recalculation of income.Wrong. AMT is not simply added on top of regular tax as a flat surcharge; it replaces regular tax only to the extent the AMT calculation produces a higher liability.
3. C.Substitute AMT for regular tax entirely once a taxpayer has any DPP investment, regardless of the size of any preference items.Wrong. Owning a DPP investment does not automatically trigger AMT; it depends on whether the investment actually generates preference items large enough to matter.
4. D.Apply only to corporations, never to individual investors in a limited partnership.Wrong. Individual investors, including limited partners in a DPP, can be subject to AMT; it is not limited to corporations.

Why: AMT operates as a parallel tax system: certain items that reduce regular taxable income, called preference items, are added back to compute an alternative taxable income figure, tax is calculated on that alternative figure under AMT rules, and the taxpayer compares that result to the regular tax calculation and pays whichever is higher. DPP investments can generate exactly this kind of preference item, most commonly through accelerated depreciation claimed in excess of what straight-line depreciation would have allowed, which is why a program that looks fully tax-advantaged under the regular system can still expose an investor to AMT.

As a taxpayer's alternative minimum taxable income rises, what happens to the AMT exemption amount available to reduce it?

1. A.The exemption amount stays fixed regardless of alternative minimum taxable income, providing the same shield to every taxpayer subject to AMT.Wrong. The exemption amount phases out as alternative minimum taxable income rises; it is not a flat amount for every taxpayer.
2. B.The exemption amount increases as alternative minimum taxable income rises, to keep the AMT burden proportionate.Wrong. The exemption moves in the opposite direction, decreasing as alternative minimum taxable income rises.
3. C.The exemption amount is eliminated entirely the moment a taxpayer becomes subject to AMT in any amount.Wrong. The exemption phases out gradually as income rises; it does not vanish instantly upon any AMT exposure.
4. D.The exemption amount phases out, shrinking as alternative minimum taxable income rises above a threshold, so higher-AMTI taxpayers retain less exemption to shield their income.Correct. The AMT exemption phases out gradually as alternative minimum taxable income rises.

Why: The AMT exemption amount phases out, shrinking as alternative minimum taxable income rises above a threshold, so higher-AMTI taxpayers retain less exemption to shield their income.

Nadia Efremov is in the 32% federal bracket and lives in a state with a 6% income tax that exempts interest on bonds issued within the state. Her adviser compares an in-state general obligation bond yielding 3.4% with an in-state airport revenue bond, structured as a private activity bond, yielding 3.9%. Assume Nadia is subject to the alternative minimum tax. Which statement is most accurate?

1. A.The private activity bond interest is a tax preference item added back for AMT purposes, so its 3.9% yield is not fully tax free to her, while the GO bond interest is free of both federal and state tax.Correct. Private activity bond interest is an AMT preference item, and an in-state GO bond escapes both federal and her state income tax.
2. B.Neither bond raises an AMT issue, because only corporate bond interest can be a tax preference item.Incorrect. Corporate bond interest is ordinary taxable income, not a preference item. Private activity municipal interest is the classic preference item.
3. C.The private activity bond is exempt from AMT but taxable at the state level, while the general obligation bond is taxable federally.Incorrect. It reverses both rules. The private activity bond is the one with AMT exposure, and municipal GO interest is federally exempt.
4. D.Both bonds are fully exempt from federal and state tax, so she should simply take the higher 3.9% yield.Incorrect. This ignores the AMT preference treatment of private activity bond interest, which is the entire point of the comparison.

Why: Interest on a private activity municipal bond is a tax preference item that is added back to income when computing the alternative minimum tax. For a client who is actually subject to AMT, the 3.9% yield is therefore not fully tax free at the federal level, and the extra yield the bond offers is partly compensation for exactly that. The general obligation bond, by contrast, is exempt from federal tax and, because it was issued in her own state, also exempt from her 6% state tax. The comparison must be made on an after-AMT basis, not on stated yields.