Regarding the formal diet, you need to be on the exclusion diet for 8 weeks before attempting to reintroduce foods. This takes about one year to do properly. You will still experience unexplained flare ups. I would not suggest attempting the fodmap diet in the UK without speaking to a nutritionist first. You will need a go referral.
The AMT is the excess of the tentative minimum tax over the regular tax. Thus, the AMT is owed only if the tentative minimum tax is greater than the regular tax. The tentative minimum tax is figured separately from the regular tax. In general, compute the tentative minimum tax by:
Deferral items are adjustment and preference items that affect more than one tax year. These items cause a difference in regular taxable income and AMTI in two or more years, but do not cause a permanent difference over time. This commonly is referred to as a timing difference. All deferral items cause a timing difference between regular tax and AMT. Under AMT, the minimum tax credit is determined by taking the âAMT paidâ and deducting the âAMT computed using only the exclusionsâ.