Business Losses

This guide explains how to manage business losses in My Tax Digital, including brought forward losses from previous years and loss claims for the current year.

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1. The Business Losses Hub

The Business Losses screen provides access to both types of loss management.

Card	Description
Brought Forward Losses	View, create and amend losses carried forward from previous tax years.
Loss Claims	View, create and make amendments to loss claims for the current tax year.

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2. Brought Forward Losses

A brought forward loss is a business loss from a prior tax year that has not yet been fully utilised and is being carried forward to offset against future profits.

2.1 The Brought Forward Losses List

The list shows all brought forward losses recorded against your businesses. Each entry shows the business name, loss type, the tax year the loss originated from, and the loss amount.

• Last modified — The date and time the loss record was last updated.
• Brought from — The tax year in which the loss arose.
• Loss amount — The total value of the loss carried forward.

Click + Add to record a new brought forward loss, or click an existing entry to edit it.

2.2 Adding a Brought Forward Loss

Field	Description	SA103F
Income source	The business the loss relates to. Select from the dropdown of your registered income sources.	-
Tax year brought forward from	The tax year in which the loss arose (e.g. 2024-25).	-
Type of loss	The category of loss. See the table below.	-
Loss amount	The value of the loss to carry forward.	Box 80

Loss types

Type	Description
Self Employment	A trading loss from a self employment business.
Self Employment Class 4	A loss from self employment subject to Class 4 NIC restrictions.
UK Property	A loss from a UK property business.
UK Property FHL	A loss from a UK Furnished Holiday Letting business.
Foreign Property	A loss from a foreign property business.
Foreign Property FHL EEA	A loss from a foreign EEA Furnished Holiday Letting business.