A financial year and a calendar year are two different time periods that are used to measure and report financial and business activities.
A calendar year refers to a period of 12 months starting on January 1st and ending on December 31st. It is based on the Gregorian calendar, which is the most widely used calendar in the world. Individuals and organizations use the calendar year to track personal and business activities, including taxes, budgeting, and financial planning.
On the other hand, a financial year, also known as a fiscal year, is a period of 12 months used by businesses and organizations for accounting and financial reporting purposes. The financial year does not necessarily align with the calendar year and can start and end on any date. For example, in the United States, the financial year for the federal government runs from October 1st to September 30th, while in India, the financial year runs from April 1st to March 31st.
The main reason for using a financial year different from the calendar year is to align with a company's or organization's business cycle. For example, a retailer may choose to have its financial year end in January, after the holiday shopping season, to reflect better the financial impact of this critical period on its financial statements.
In summary, a calendar year is a 12-month period that starts on January 1st and ends on December 31st, while a financial year is a 12-month period used by businesses and organizations for accounting and financial reporting purposes and can start and end on any date depending on the company's business cycle.