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. 
A medical equipment manufacturer receives an order for equipment to be shipped to a hospital. The order is placed on May 1 and the equipment ships June 1. Payment is received on August 1. The medical equipment manufacturer records the revenue on May 1 – the date the sales contract is received (or accrued) – rather than on August 1 when the payment is received.
An audit of financial statements aims to express or disclaim an independent opinion on the financial statements. The auditor expresses an independent opinion on the fairness with which the financial statements presents the financial position, results of operations, and cash flows of an entity, in accordance with the generally acceptable accounting principle (GAAP) and "in all material respects". An auditor is also required to identify circumstances in which the generally acceptable accounting principles (GAAP) has not been consistently observed.[39]
The Tax Cuts and Jobs Act (TCJA) upended tax rules to a significant extent when it went into effect in 2018. The Internal Revenue Code used to provide for personal exemptions that could further decrease your taxable income, but the TCJA eliminated these exemptions from the tax code. The rules for deductions, adjustments to income, and tax credits cited here are applicable beginning in the tax year 2018 and going forward. They do not necessarily apply to tax years 2017 and earlier.
Tax credits are credited to your IRS as payments, just as though you had written the IRS a check for money owed. Most of them can only reduce your tax debt, but the EITC can result in the IRS issuing a tax refund for any balance left over after your tax obligation has been reduced to zero. Again, income restrictions apply. You won't qualify for this tax credit if you earn too much.
Health savings accounts are available to those who have high-deductible health insurance coverage and who want to set money aside to cover healthcare costs. Contribution amounts of up to $3,550 for those with self-only policies or $7,100 for family policies apply in 2020, with minimum annual deductibles of $1,400 or $2,800 respectively required to qualify for high-deductible health plan status. Catch-up contributions of $1,000 are available if you're 55 or older, but a qualifying plan must have maximum out-of-pocket expenses of $6,900 for self-only policies or $13,800 for family coverage.
Most minor children don't have to file taxes at all, but if they have income from a job or from investments held in their name, then it's possible that they will need to file. If so, they typically aren't allowed to claim the full standard deduction. Instead, they're subject to reduced standard deductions. For them, a standard deduction of at least $1,100 is available. Those who have earned income from a job or other source get a standard deduction of at least their total earned income plus $350 more, until that amount rises above the regular standard deduction shown in the table above. These numbers are the same for 2020 as they were in 2019.
One key tax planning strategy is to keep track of your itemized expenses throughout the year using a spreadsheet or personal finance program. You can then quickly compare your itemized expenses with your standard deduction. You should always take the higher of your standard deduction or your itemized deduction to avoid paying taxes on more income than you have to.

Accounting firms grew in the United States and Europe in the late nineteenth and early twentieth century, and through several mergers there were large international accounting firms by the mid-twentieth century. Further large mergers in the late twentieth century led to the dominance of the auditing market by the "Big Five" accounting firms: Arthur Andersen, Deloitte, Ernst & Young, KPMG and PricewaterhouseCoopers.[48] The demise of Arthur Andersen following the Enron scandal reduced the Big Five to the Big Four.[49]
The history of accounting is thousands of years old and can be traced to ancient civilizations.[12][13][14] The early development of accounting dates back to ancient Mesopotamia, and is closely related to developments in writing, counting and money;[12] there is also evidence of early forms of bookkeeping in ancient Iran,[15][16] and early auditing systems by the ancient Egyptians and Babylonians.[13] By the time of Emperor Augustus, the Roman government had access to detailed financial information.[17]
In most cases, accountants use generally accepted accounting principles (GAAP) when preparing financial statements in the U.S. GAAP is a set of standards and principles designed to improve the comparability and consistency of financial reporting across industries. Its standards are based on double-entry accounting, a method in which every accounting transaction is entered as both a debit and credit in two separate general ledger accounts that will roll up into the balance sheet and income statement.
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