Some common business-deductible expenses are:

1. Business travel expenses: This includes fuel costs, car expenses, public transport, taxis, and airline tickets that are directly related to business activities.
   
   
   
   
   

2. Office and business premises costs: This includes rental costs for an office or business space, energy costs, maintenance costs, insurance, and local taxes.
   
   
   
   
   

3. Business telecommunications and internet costs: Think of costs for mobile
   phone subscriptions, landlines, internet connection, and business software.
   
   
   
   
   

4. Marketing and advertising costs: This includes costs for advertising, online ads, printed materials, website development, and other marketing activities to promote your business.
   
   
   
   
   

5. Professional services: This includes costs for external consultants, accountants, lawyers, and other professionals you engage for business purposes.
   
   
   
   
   

6. Education and training costs: This includes costs for business education, courses, and training you take to improve your knowledge and skills within your field.

It is important to note that the specific rules and limitations for deductible expenses may vary depending on your business structure and the nature of the costs. It is advisable to contact a tax advisor or the Dutch Tax Administration for specific information and advice regarding business-deductible expenses in your particular situation. They can provide you with detailed and up-to-date information relevant to your business and the expenses concerned.