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What is the difference between an accounting date and a period of account?

Author

Jackson Reed

Updated on January 04, 2026

If you make up your accounts to 31 December each year, this is your accounting date and the 12 months to 31 December is your accounting period. If you start your business on 1 July your first accounting period will be only six months long, and then subsequent accounting periods will be 12 months each.

What is difference between accounting year and financial year?

For limited companies, the financial year runs from 1st April one year to 31st March the following year. The accounting year end is the date that a limited company chooses to prepare its accounts to every year. It runs from the day after the previous accounting year end to the next accounting year end.

What do you mean by accounting year?

An accounting year is the period of time over which a company gathers and organises its financial activity. Beginning or ending an accounting period? Have all of your financial reports at your fingertips with an efficient accounting system such as Debitoor.

What is the shortest accounting period allowed?

Companies are permitted to shorten their financial year as many times as they like by as many days as they like. You can even shorten it by as little as one day. The exception is with your first set of accounts, which have to be a minimum of 6 months.

What is my accounting period?

Your company’s accounting period (also called ‘accounting reference date’) is usually set when you incorporate a new company with Companies House, with the end of the financial year being know as the company’s ‘year end’. Corporation tax is then due 9 months and 1 day after your accounting period ends.

Is assessment year and financial year same?

Financial Year is the year or the time period within which income is earned. The assessment year is the year that follows the financial year and it is the period in which tax returns are filed. Both FY and AY end on the 31st of March and begin on the 1st of April.

How important is an accounting period?

Why Is an Accounting Period Important? Accounting period provides business owners the perspective about the profitability of the business on an ongoing basis and helps them make informed business decisions. To enable this, the accountants have developed the periodicity concept.

What are two types of accounting period?

The accounting period has no fixed length, and it can be of any length, such as one year or less and maybe more than one year. It has two types, namely calendar year and fiscal year. Accordingly, it can start from the first date of any month.

Can you extend your first accounting period?

First accounting reference date You can change the current or previous accounting period and there is no limit to shortening, but you can only extend once in five years (except in certain circumstances, see chapter 2 Life of a company: annual requirements).

Can I change my accounting period?

You can change your company’s year end (also known as its ‘accounting reference date’) to make your company’s financial year run for more or less than 12 months. You can only do this for your company’s current financial year or the one immediately before it.

Why is March financial year?

Significantly, the British used the Julian calendar before Gregorian. According to this calendar, the last day of the year was 25 March. So the British started the new fiscal year in March with the new year. But the Gregorian calendar goes ten days ahead of the Julian calendar.

What is the duration of accounting period?

In financial accounting the accounting period is determined by regulation and is usually 12 months. The beginning of the accounting period differs according to jurisdiction. For example, one entity may follow the calendar year, January to December, while another may follow April to March as the accounting period.

How long can an accounting period be?

The first accounting period must be between six and eighteen months. Subsequent periods will usually be twelve months, but can be changed to anything from one day to eighteen months. An accounting period can be shortened as often as you like but can only be extended once every five years.

You’ll choose a date to prepare your accounts to each year. This is called your accounting year end date, year end date, or year end. The period that runs to a year end date is called your business’s accounting year if it’s a full year, or accounting period (which can be a year or a different span of time).

Is accounting period the same as financial year?

Your ‘accounting period’ for Corporation Tax is the time covered by your Company Tax Return. It can’t be longer than 12 months and is normally the same as the financial year covered by your company or association’s annual accounts. It may be different in the year you set up your company.

What is the period of accounting year?

A fiscal year arbitrarily sets the beginning of the accounting period to any date, and financial data is accumulated for one year from this date. For example, a fiscal year starting April 1 would end on March 31 of the following year.

What are the types of accounting period?

There are two kinds of accounting periods:

  • Calendar Year – the accounting period begins on January 1 and ends on December 31 of the same year.
  • Fiscal Year – the accounting period begins on the first day of any month other than January.

Which is the accounting period for the year?

Common accounting periods for external financial statements include the calendar year (January 1 through December 31) and the calendar quarter (January 1 through March 31, April 1 through June 30, July 1 through September 30, October 1 through December 31).

What’s the difference between accounting period and basis period?

Your accounting period is a time period that you choose to run your accounts to (often a year). Your basis period is the time period that HMRC uses for tax. If your accounting year end doesn’t match HMRC’s tax year end, these periods can be different and cause overlap profits and overlap reliefs.

What’s the difference between a fiscal year and a calendar year?

Fiscal Year vs. Calendar Year. A calendar year in respect to accounting periods indicates an entity begins aggregating accounting records on the first day of January and subsequently stops the accumulation of data on the last day of December. This annual accounting period imitates a basic twelve-month calendar period.

What are the accounting periods for external financial statements?

Common accounting periods for external financial statements include the calendar year (January 1 through December 31) and the calendar quarter (January 1 through March 31, April 1 through June 30, July 1 through September 30, October 1 through December 31). It is common for these companies to also have monthly accounting periods.