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.
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Generally accepted accounting principles (GAAP) are accounting standards issued by national regulatory bodies. In addition, the International Accounting Standards Board (IASB) issues the International Financial Reporting Standards (IFRS) implemented by 147 countries. While standards for international audit and assurance, ethics, education, and public sector accounting are all set by independent standard settings boards supported by IFAC. The International Auditing and Assurance Standards Board sets international standards for auditing, assurance, and quality control; the International Ethics Standards Board for Accountants (IESBA)  sets the internationally appropriate principles- based Code of Ethics for Professional Accounts the International Accounting Education Standards Board (IAESB) sets professional accounting education standards; International Public Sector Accounting Standards Board (IPSASB) sets accrual-based international public sector accounting standards 
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.
In addition to these base amounts, those who are 65 or older or are blind get to take additional amounts as a standard deduction. For those who are married, the added amount is $1,300, while singles get to add $1,650. These added amounts are the same for 2020 as they were in 2019. If you're 65 or older and blind, then you can boost your standard deduction by double the relevant amount. Moreover, for joint filers, each spouse has an opportunity to get these added amounts. So married couples in which both spouses are over 65 and are blind would see their standard deduction increase by $5,200 -- or $1,300 times four.
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.
If you use accounting software, it likely performs many of these steps automatically. Once income and expense items are identified and entered into the software, the system updates the accounts and general ledger. Users can run reports directly from the system. A quarterly or annual audit of the entire general ledger can reveal any accounts of out balance that must be corrected through adjusted entries.
A special thing about the earned income tax credit is that even if you don't owe anything in taxes, you can still get the credit amount back from the IRS in the form of a refund. As you can imagine from the chart, a credit of several thousand dollars for workers earning less than $56,000 -- in some cases, much less -- can make a big financial difference for families struggling to make ends meet.