She is now an overstayer and that impacts her right to work in the UK and claim any benefits if she has applied for any.
Renew asap. Provided she applies within 14 days of the expiry of the visa, the overstay can be ignored for the purposes of future renewals.
But don't wait for the 14 days. She is already an overstayer. Get the renewal process started straightaway.
dave101 wrote: ↑Mon May 11, 2026 12:29 pm
2. Does the 1-day overstay affect her 5-year ILR route?
It is not a one day overstay. She is an overstayer from today till the day she is issued a new visa.
Section 3C leave/protection only applies if she had started the application before or on the day her previous visa expired.
Now that she is an overstayer, having an application in progress with the Home Office does not legalise her stay. Only the grant of a new visa by the Home Office will legalise her stay.
Does she work/have a job? She will almost certainly have lost the right to work in the UK until the time her new visa has been issued.
I am not a lawyer or immigration advisor. My statements/comments do not constitute legal advice. E&OE. Please do not PM me for advice.