Companies House late filing penalties
Not more than 1 month late £150
The penalty is invoiced after you have filed the accounts.
If you are so late that another year is due there may be no further action on the earlier year after you file the later year. This seems to be a loophole which may close; other aspects listed below may still apply.
If you are more than three months late the following year can normally be completed either immediately or within one month.
More than 1 month but not more than 3 months £375
More than 3 months but not more than 6 months £750
More than 6 months £1,500
See tax treatment See Penalties on this page index
Penalties still apply to dormant companies.