Tax accounting in the United States concentrates on the preparation, analysis and presentation of tax payments and tax returns. The U.S. tax system requires the use of specialised accounting principles for tax purposes which can differ from the generally accepted accounting principles (GAAP) for financial reporting. U.S. tax law covers four basic forms of business ownership: sole proprietorship, partnership, corporation, and limited liability company. Corporate and personal income are taxed at different rates, both varying according to income levels and including varying marginal rates (taxed on each additional dollar of income) and average rates (set as a percentage of overall income).
Tax gain-loss harvesting is another form of tax planning or management relating to investments. It is helpful because it can use a portfolio's losses to offset overall capital gains. According to the IRS, short and long-term capital losses must first be used to offset capital gains of the same type. In other words, long-term losses offset long-term gains before offsetting short-term gains. As of 2018, short-term capital gains, or earnings from assets owned for less than one year, are taxed at ordinary income rates.
Accounting is one of the key functions for almost any business. It may be handled by a bookkeeper or an accountant at a small firm, or by sizable finance departments with dozens of employees at larger companies. The reports generated by various streams of accounting, such as cost accounting and managerial accounting, are invaluable in helping management make informed business decisions.