Federal Tax Accounting advises tax preparers, accountants, attorneys, and other professionals about timing issues, i.e. when an item, such as income, deduction, or credit may be reported on a tax return. Tax accounting rules govern the tax incidents of when tax events must be taken into account for federal income tax purposes. The when question is the subject of this book. In general, tax accounting is not concerned with whether an item is includable in income or deductible or even with the character of the item but when it may be reported.