In clientbase you can set the due dates for when items are due to be filed online or paid to HMRC or Companies House.

For any client that would have a tax return to be filed by the 31st January you can initially set the due date through Tools / Log / Set SA due for all clients. This must be done after the new Tax Year has started. For other clients you would need to highlight them and click the Dates button to manually enter the due dates.

Once you start to file online to Companies House or HMRC the system will enter the date the document has been filed and carry forward the due date by 12 months. The system by default will highlight the client in Orange if a deadline is due within 30 days or Red if a deadline is overdue.

You can set your own deadline prompts through Tools > Advanced > Customise > warning colours.