Annual accounts in QuickBooks Online Accountant: Workpapers sync and filing deadlines
How Workpapers in QuickBooks Online Accountant handles annual accounts and syncing company details from Companies House.

QuickBooks Online Accountant users preparing annual accounts are hitting a familiar wall: after they sync a client with Companies House, key company fields lock for editing. In the community threads, the accepted answer does not treat the lock as a bug. It is a safety behaviour built into Workpapers, and it comes with a specific remedy.
Who this hits
The workflow belongs to the UK edition of QuickBooks Online Accountant. In that edition, Workpapers is used to prepare a client’s annual accounts and get them ready for filing. Filing deadlines apply from the start. First-time filers must submit accounts within 21 months of the registration date. Later statutory accounts are due within 9 months of the financial year end.
Symptoms users report
The most common symptom is a greyed-out field. After a successful sync, an address, a director’s name, or other company details can no longer be typed over. Another symptom appears later: the annual accounts report shows a prompt to run a data sync, even when no one in the firm has changed the company records. A third complaint is an unavailable tax period, where the dates an accountant needs cannot be selected for filing.
The accepted fix
The accepted answer walks users through a sync-first workflow. Before anything is pulled across, the data held at Companies House should be up to date, because QuickBooks imports the official record rather than creating its own. Inside Workpapers, the accountant opens the Annual accounts tab. If the Company Registration Number is missing from the client settings, it has to be entered at the prompt. Then they choose Sync with Companies House.
QuickBooks responds with a side-by-side comparison: official data from Companies House on the left, existing QuickBooks information on the right. After reviewing both sides, the accountant selects Sync all data. The corrected values then replace or confirm what was already in the file.
Why the fields go read-only
The lock is deliberate. Once details come over from Companies House, the matching fields become read-only in QuickBooks so nobody can silently overwrite the official record. If a change is made later at Companies House, a prompt appears the next time the annual accounts report is accessed. Choosing Go to data sync reopens the comparison and applies the fresh details. That is the intended path for editing the record. Manual typing over the top is not part of the design.
Year-end tasks around the accounts
The same Workpapers area includes a year-end tasks list. Accountants reach it through the client list. The list acts as a shared checklist for the close of the financial year, and each item can be tracked as the team works through it. The accepted answer treats this as part of the same annual accounts preparation, not a separate chore. Having the checklist alongside the company data keeps the whole job in one place.
If a tax period will not appear
A missing period is usually a coverage gap rather than a problem with the books. The accepted answer explains that a tax period may not have been introduced to the filing system yet. Such periods are normally added at the start of every tax year. Until then, the period cannot be filed through Workpapers. Waiting for the update, or using the data sync prompt when the new period shows up, are the practical options.
Takeaway
When fields are greyed out, the answer is not to force an edit inside QuickBooks. Update the record at Companies House first, then let the data sync prompt bring the correction across. The lock exists to keep the two records identical, and working around it simply creates a mismatch that will reappear at filing time.