Keeping track of BAS lodgement dates is a key part of running a business. Missing a deadline can lead to ATO penalties, interest charges, and unnecessary compliance issues. Whether you lodge monthly, quarterly, or annually, knowing your deadlines helps you plan ahead and avoid last-minute pressure.

In our latest blog post, we have brought together all the key BAS due dates 2026-27 in one place. We also explain agent concessions, the consequences of late lodgements, and practical tips to help you stay compliant throughout the year. If you want BAS lodgements to be simpler and stress-free, CleanSlate is ready to help.