This article relates to the Additional Self Employment Module
Best Practices & Tips
For Manage Businesses
- Set up all your businesses before entering any transactions
- Use clear, descriptive business names
- Only mark businesses as inactive when you’ve permanently stopped trading
- Keep business names consistent for easier reporting
For Income & Expenses
- Enter transactions regularly (weekly or monthly) to avoid backlogs
- Use specific descriptions (e.g., “Website design – ABC Ltd” instead of just “Income”)
- Double-check which business you’re selecting from the dropdown
- Keep receipts/invoices separately as the system doesn’t store attachments for SE income/expenses
- Use consistent date formats to avoid errors
For the Annual Report
- Review monthly to spot trends and issues early
- Check before tax deadlines to plan payments
- Compare profit/loss across businesses to identify strongest performers
- Use the data to make informed business decisions
- Share with your accountant during tax preparation
Common date formats accepted:
- DD-MM-YYYY (e.g., 15-06-2025)
- DD/MM/YY (e.g., 15/06/25)
- DD/MM/YYYY (e.g., 15/06/2025)
Troubleshooting
“No businesses added yet” message:
- Solution: Go to Manage Businesses and add at least one active business
Business not appearing in dropdown:
- Solution: Check the business is marked as “Active” in Manage Businesses
Can’t find a transaction:
- Solution: Use the search box or check pagination – you may be on the wrong page
Wrong amount entered:
- Solution: Click “Delete” to archive the incorrect entry, then add a new correct entry
Need to change which business a transaction belongs to:
- Solution: Delete the transaction and re-add it to the correct business
Integration with Tax Calculations
Your Additional Self-Employment data automatically feeds into:
- Your overall tax calculation (visible on the tax dashboard)
- Shows as “Profit from SA103F Additional Self-Employment” in tax reports
- Included in National Insurance calculations
- Combined with your main self-employment and property income for total tax liability