In this guide

What is an allowable expense?

An allowable expense is a cost that can be deducted when calculating taxable profit under the rules for the business. Personal costs and capital expenditure are treated differently.

Keep expense records

Keep receipts, invoices, mileage details, business purpose and the people involved. Record the date, amount and payment method.

Review common areas

  • Travel and mileage.
  • Professional fees and software.
  • Business insurance and premises.
  • Equipment and capital expenditure.
  • Mixed business and private costs.

Official sources

Rates and deadlines can change. Use these links to check a rate, deadline or eligibility rule.

Need help reviewing expenses?

We can help organise expense records and distinguish recurring costs from capital expenditure.

Discuss business expenses