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]
The year 2001 witnessed a series of financial information frauds involving Enron, auditing firm Arthur Andersen, the telecommunications company WorldCom, Qwest and Sunbeam, among other well-known corporations. These problems highlighted the need to review the effectiveness of accounting standards, auditing regulations and corporate governance principles. In some cases, management manipulated the figures shown in financial reports to indicate a better economic performance. In others, tax and regulatory incentives encouraged over-leveraging of companies and decisions to bear extraordinary and unjustified risk.[72]
Try for Free/Pay When You File: TurboTax online and mobile pricing is based on your tax situation and varies by product. $0 federal (for simple tax returns) + $0 state + $0 to file offer only available with TurboTax Free Edition; offer may change or end at any time without notice. Actual prices are determined at the time of print or e-file and are subject to change without notice. Savings and price comparisons based on anticipated price increase. Special discount offers may not be valid for mobile in-app purchases.
There are several other retirement plans that an individual may use to help reduce tax liability. 401(k) plans are popular with larger companies that have many employees. Participants in the plan can defer income from their paycheck directly into the company’s 401(k) plan. The greatest difference is that the contribution limit dollar amount is much higher than that of an IRA. 

Accounting research is carried out both by academic researchers and practicing accountants. Methodologies in academic accounting research include archival research, which examines "objective data collected from repositories"; experimental research, which examines data "the researcher gathered by administering treatments to subjects"; analytical research, which is "based on the act of formally modeling theories or substantiating ideas in mathematical terms"; interpretive research, which emphasizes the role of language, interpretation and understanding in accounting practice, "highlighting the symbolic structures and taken-for-granted themes which pattern the world in distinct ways"; critical research, which emphasizes the role of power and conflict in accounting practice; case studies; computer simulation; and field research.[66][67]
No matter how complicated or simple your personal situation is, it's never too early to think about tax planning for the coming year. By getting an early start on the 2020 tax year and using and referring to this guide to 2020 taxes throughout the year, you'll be in much better shape to take advantage of all the favorable provisions that can result in a lower tax bill this year and beyond.

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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.