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Categorise expenses

Assign the right category to your business expenses for a clear administration.

4 minUpdated 8 June 2026

Why categorise?

Correct categories make your:

  • VAT return simpler
  • Year-end closing clearer
  • Spending insight more accurate

Default categories

Declair offers categories such as:

  • Office supplies and materials
  • Software and subscriptions
  • Travel and accommodation
  • Entertainment
  • Phone and internet
  • Training and courses

You can add custom subcategories under Settings → Expense categories.

Automatic categorisation

When you scan a receipt, Declair suggests a category based on the vendor. For recurring vendors (e.g. AWS, KPN, NS), this gets more accurate over time.

You can set fixed rules: "All receipts from Vendor X → category Software".

Private vs. business

For mixed expenses (e.g. home internet 50% business):

  1. Enter the full amount.
  2. Set the business percentage to 50%.
  3. Declair only includes the business portion in your reports.

Monthly routine

Plan 15 minutes per month to handle uncategorised expenses. Filter in Expenses by No category and update them.

Still have questions? Our team is happy to help.