Change of Accounting Reference Date

Although you can change the accounting reference date of your company, the first return must be submitted to Companies House within 9 months after the original accounting reference date.

In subsequent years, it will be 9 months after the new date.

There are no limitations if you need to shorten the company’s accounting reference date, however, if you want to extend the accounting
reference date, this can be done once every 5 years, and cannot be extended by longer than 6 months.