Question 1

What is the ILR 180-day absence rule?

Accepted Answer

For most Indefinite Leave to Remain routes covered by Appendix Continuous Residence, you must not be outside the UK for more than 180 days in any rolling 12-month period during your qualifying residence. This is checked as a sliding window, not a calendar year.

Question 2

Do departure and return days count as absences?

Accepted Answer

Usually no. Home Office continuous residence counting is based on whole days spent outside the UK. The day you leave and the day you return are typically treated as days present in the UK. Under180 uses this as the default.

Question 3

What does Under180 do?

Accepted Answer

Under180 is a free UK ILR absence tracker. You log trips abroad (manually or from Excel/CSV), it calculates rolling 12-month absence windows against the 180-day limit, and you can export reports for planning and applications. It is guidance only, not legal advice.

Question 4

Is Under180 official Home Office software?

Accepted Answer

No. Under180 is an independent planning tool. Always verify results against official GOV.UK guidance or a qualified immigration adviser before applying for ILR.