Check your Self-Assessment Business Details

You can view your business details at any time from the Tax Account page. Simply click the Details link next to your connected business profile.

This will display a live view of the information held by HMRC for your business, including general contact details (e.g. name and address), accounting period, and accounting method (e.g. cash or accrual).

Cash Accounting – Transactions are recorded when invoices or purchases are paid.

Accrual Accounting – Transactions are recorded when invoices or purchases are issued.

Changing your quarterly period interval

Starting from the 2026/27 tax year, you’ll be able to align your quarterly reporting periods with calendar months.

Current period:
6 April to 5 July

Updated period:
1 April to 30 June

If you’re eligible, the option to update your quarterly period will appear in the Business Details section.

Find out more about using calendar quarters here →

Hiding unused MTD business entities

In situations where you are using more than one QuickFile account to report different self employments or property income, you may wish to hide certain MTD registered businesses from the user interface.

To hide an MTD business entity follow the steps below:

Go to Reports then HMRC Connections.
Click to view the individual tax account to which your MTD businesses are associated.
In the list of MTD registered businesses click the options menu and select Hide business.

Once a business is hidden it will no longer appear on the selection menu in your self assessment workflow, obligations and cumulative update lists.