You can now set up an email reminder service for your limited company and LLP clients at Companies House. Once you have registered you will receive timely emails to remind you of the due dates to submit the annual return and accounts for clients, and paper reminders will cease.
It is possible to register up to four email addresses for each business. Each email address nominated will receive an activation email which must be acted upon within five days, so don't set up the email reminder service just before you go on holiday.
It will be possible to opt-out of the email reminder service and revert to paper reminders.