The normal default for submitting accounts is 9 months not 10 months.
A number of companies appear to be missing this deadline by a few days. This has the effect of lowering the companies credit rating. This can affect credibility with suppliers as they may receive notification of a change in credit status the day after the accounts should have been submitted.
Obviously this will add to administration costs at the very least. It might cause a supplier to delay despatch as it may lower your credit limit with them.
Indeed since corporation tax is due in 9 months and 1 day it implies that any tax may be being paid late.
There is something strange at Companies House which we have observed.
If you do not submit accounts for a year but then submit accounts for the next year quickly the company ceases to be chased for the missing year.