Year-end is the natural pressure-test of a year of company secretarial work. The clients who get through it cleanly are the ones whose registers, addresses, deadlines and PSC data have been kept current throughout the year. The ones who get through it painfully are the ones who try to fix nine months of drift in three weeks. This nine-point checklist is the version most firms run for owner-managed clients - work through it 60-90 days before the accounting reference date and most of the year-end fire goes out before it starts.
1. Reconcile the public register to the firm's records
Pull the current Companies House record for each client (officers, PSCs, registered office, SAIL, registered email, SIC codes, statement of capital) and compare it to what the firm holds. Differences mean either a missed filing or a missed update. Resolve them now rather than discovering them in a Q4 confirmation statement.
2. Confirm PSC accuracy with the directors
Send a short PSC confirmation letter to each director: "Our records show the following persons with significant control as of [date]. Please confirm there have been no changes." Spouse-to-spouse transfers, family trust changes, and new external investors are the most common omissions. A signed confirmation also provides defensible evidence if a PSC issue surfaces later.
3. Check ECCTA director identity verification status
By mid-2026 the verification requirement is live for new appointments and rolling in for existing directors. For each client, confirm whether each director and each PSC has been verified, and whether the confirmation statement deadline falls in or after their verification window. Unverified directors who are due for verification at the next CS01 need to start the process now, not the week before.
4. Validate the registered office and registered email
Apply the appropriate-address test: is the registered office monitored, is post collected and acted on within 48 hours, is the registered email going to a working inbox? Any "no" answers need fixing before year-end. PO Boxes need replacing. Personal email addresses on registered email need swapping for monitored firm or business mailboxes.
5. Refresh the AML/KYC file
The year-end touchpoint is the obvious moment to refresh client identification, refresh source-of-funds and source-of-wealth declarations for higher-risk clients, and rerun PEP and sanctions screening. AML supervisors are increasingly insistent on evidence of periodic refresh, not just initial onboarding. Document each refresh with a dated, named sign-off.
- Photo ID re-verified or confirmed still valid
- Proof of address dated within 3 months for refresh
- PEP and sanctions rerun via your screening tool
- Source of funds reconfirmed for higher-risk engagements
- Risk rating reviewed and updated if changed
6. Update the SIC code if the business has actually changed
Companies that have pivoted into new lines of business often leave the SIC code from their original incorporation. The CS01 is the moment to fix this. Use the latest UK SIC 2007 codes (Companies House publishes the searchable list) and choose the code that reflects the principal activity by turnover.
7. Pre-deadline accounts review with the client
Get the draft accounts in front of the directors at least 60 days before the filing deadline. That gives time for questions, for any reclassification of expenses, for related-party disclosure decisions, and for the post-ECCTA reality that small companies now file the profit and loss as well as the balance sheet. Surprises in the public accounts are best avoided by review, not by amendment.
8. Map the deadline cluster for the next 12 months
The year-end accounts deadline is one of several. Map the corporation tax payment deadline (nine months and one day after period-end for non-large companies), the corporation tax return deadline (12 months), the confirmation statement deadline, PAYE year-end if relevant, P11D deadlines, and any VAT-related deadlines. Assign owner and review date to each. Accupe's Compliance Radar pulls the Companies House and HMRC deadline data into a single client-level view, with Smart Boards giving the firm-wide picture of who owns what - the filings still go via the firm's usual filing software, but the deadlines and ownership are visible in one place.
9. Update the engagement letter if anything changed
Year-end is the right moment to update the engagement letter if scope changed, if the firm took on registered-office or service-address responsibilities, if ACSP verification work was added, or if the fee structure changed. An updated, signed engagement letter is also the AML evidence trail for ongoing client due diligence under MLR 2017.
Closing
Year-end checklists work when they are run early, run completely, and run against actual register data rather than the firm's assumption of what the register says. Nine points done in October beats forty points done in panic in January. The firms that build this rhythm into their compliance cycle find their year-end becomes a verification exercise rather than a recovery operation - and that shift, more than any single tool, is what separates a calm practice from a stressed one.