MTD expenses use HMRC filing fields

1. Given Making Tax Digital is selected as the capability view
2. And the Expenses tab is selected
3. When Digital Tax Filing is enabled
4. Then each expense can be marked Taxable, Personal, or Shared
5. And business expenses can be assigned to an HMRC income source
6. And personal expenses do not carry an HMRC source
7. And categories are chosen from the active tax-year category set

I record a shared expense

1. Given I am adding an MTD expense
2. When I choose Shared
3. Then I must enter the taxable amount
4. And I must enter the personal amount
5. And the full cost and personal-use adjustment are preserved for filing

I record a taxable expense

1. Given I am adding an MTD expense
2. When I choose Taxable
3. And I choose an HMRC expense category
4. And I assign the correct income source
5. And I save the expense
6. Then the expense is available for the relevant quarterly submission

Submitted MTD expense periods are protected

1. Given an expense belongs to a submitted period
2. When I view expenses for that period
3. Then the submitted section shows the submitted total
4. And locked submitted expenses cannot be edited or deleted from the list
5. And non-submitted expenses remain editable when the period allows it