1. What is Condition 8558?

Condition 8558 is a visa condition for Australian Visitor Visa (subclass 600) holders that states: "The holder must not stay in Australia for more than 12 months in any 18 month period." This calculator helps determine compliance with this condition.

2. How Does the Calculator Work?

The calculator uses the following logic:

Where:

• \( stay\_durations \) — Individual periods of stay in Australia (days)
• \( rolling\_period \) — Typically 18 months (548 days)
• 365 — Maximum allowed days in any rolling period

Explanation: The calculator checks all possible combinations of stays within any rolling window to find the maximum cumulative stay.

3. Importance of Compliance

Details: Non-compliance with condition 8558 may result in visa cancellation, future visa refusals, or re-entry bans. It's crucial to track all stays carefully.

4. Using the Calculator

Tips: Enter all your stay durations in Australia (in days) in chronological order (most recent first). The default rolling period is 18 months but can be adjusted if needed.

5. Frequently Asked Questions (FAQ)

Q1: What counts as a "stay duration"?
A: Any continuous period spent in Australia counts as a single stay duration, from arrival date to departure date.

Q2: Does the 18-month period reset after leaving Australia?
A: No, it's a rolling window - any 18-month period must not exceed 12 months of stay.

Q3: How accurate does the calculation need to be?
A: Immigration counts exact calendar days, so try to be as precise as possible with your dates.

Q4: What if I have multiple entries/exits?
A: Include each separate stay period in the calculator. The tool will check all combinations.

Q5: Can I adjust the rolling period?
A: Yes, though 18 months is standard for condition 8558. Some visas may have different requirements.