“Other” business expenses account for just part of the overstated adjustments, deductions, exemptions and credits that add up to $30 billion per year in unpaid taxes, according to IRS estimates.
In general, taxpayers may deduct ordinary and necessary expenses incurred in conducting a trade or business. An ordinary expense is an expense that is common and accepted in the taxpayer’s trade or business. A necessary expense is one that is appropriate for the business. Although many common expenses are deducted on designated lines of the tax schedule, some expenses may not fit into a particular category. Taxpayers can deduct these as “other” expenses. A breakdown of “other” expenses must be listed on line 48 of Form 1040 Schedule C. The total is then entered on line 27.
Examples of “other” expenses include:
Personal, living and family expenses, do not qualify as deductible “other” business expenses.
Some parts quoted from IRS Publication 535, Business Expenses