Why Solicitor LLPs Face a Dual Filing Obligation
If your law firm is structured as a limited liability partnership (LLP), you have two separate but linked filing obligations. You must file statutory accounts with Companies House and a partnership tax return (form SA800) with HMRC. Many solicitor partners find this dual requirement confusing, especially when moving from a general partnership or sole practice.
An LLP is a corporate body with separate legal personality. Companies House treats it similarly to a limited company for filing purposes. But for tax, an LLP is transparent: the LLP itself pays no corporation tax. Each member is taxed on their share of the profits at their personal rates. This hybrid status creates the dual filing requirement.
This guide explains what a solicitor LLP must file, by when, and how to avoid common penalties. It assumes you are already familiar with the SRA Accounts Rules and the role of your COFA.
What Must a Solicitor LLP File at Companies House?
Every LLP registered in England and Wales must deliver annual accounts to Companies House. These are separate from any management accounts you prepare internally or the tax return you file with HMRC.
Content of LLP Accounts for Companies House
The accounts must include:
- A balance sheet signed by a designated member, showing the LLP's name and the date it was signed.
- A profit and loss account (income statement).
- Notes to the accounts, including accounting policies.
- A members' report (similar to a directors' report for a limited company).
- An auditor's report if the LLP is not exempt from audit (see below).
The accounts must be prepared in accordance with UK GAAP. Most solicitor LLPs use FRS 102, though smaller firms may use FRS 105 (the micro-entities regime) if they meet the size thresholds. FRS 105 is simpler but restricts what you can disclose and may not suit firms with complex profit-sharing arrangements.
Size Thresholds and Filing Options
Your filing obligations depend on your LLP's size. The current thresholds (for periods beginning on or after 1 January 2024) are:
- Micro-entity: Turnover not over £632,000, balance sheet total not over £316,000, average employees not over 10.
- Small: Turnover not over £10.2 million, balance sheet total not over £5.1 million, average employees not over 50.
- Medium: Turnover not over £36 million, balance sheet total not over £18 million, average employees not over 250.
Small LLPs can file abbreviated accounts (a simpler balance sheet and notes) and are exempt from audit unless members holding at least 10% of the voting rights request one. Micro-entities have even lighter requirements. But many solicitor LLPs choose to file full accounts anyway, especially if they have bank covenants or institutional lenders who want full disclosure.
Deadline for Companies House Filing
The deadline is nine months after the LLP's accounting reference date (the end of its financial year). For a 30 April year end, the deadline is 31 January the following year. Late filing penalties are automatic and scale with the delay:
- Up to 1 month late: £150
- 1 to 3 months late: £375
- 3 to 6 months late: £750
- More than 6 months late: £1,500
These penalties double for LLPs that were late in the previous year. They apply to the LLP itself, not individual members, but the designated members are personally responsible for ensuring filing happens.
What Must a Solicitor LLP File with HMRC?
Alongside the Companies House accounts, the LLP must file a partnership tax return on form SA800. This is separate from each member's personal self-assessment tax return (SA100 or SA200).
The SA800 Partnership Tax Return
The SA800 reports the LLP's total taxable profits or losses for the tax year (6 April to 5 April). It does not calculate tax payable: the LLP itself pays no tax. Instead, it allocates the profits among the members, and each member reports their share on their personal tax return.
The SA800 must include:
- The partnership statement (pages 1 to 4 of the form), showing total profits and how they are allocated.
- A full set of accounts or a three-line account summary (turnover, cost of sales, net profit) if the LLP qualifies as small or micro.
- Supplementary pages if the LLP has certain types of income (e.g., property income, foreign income, or capital gains).
Most solicitor LLPs will need to submit a full set of accounts with the SA800, even if they filed abbreviated accounts at Companies House. HMRC wants to see the full picture, including work in progress (WIP), debtors, and creditors.
Deadline for the SA800
The SA800 deadline is 31 January following the end of the tax year. For the 2025/26 tax year (6 April 2025 to 5 April 2026), the deadline is 31 January 2027. If you file online, you have until 31 January. Paper filing must be done by 31 October after the tax year end.
Late filing penalties for the SA800 start at £100 per partner per month, capped at 12 months. If the return is more than 12 months late, HMRC can charge up to 100% of the tax due. These penalties apply to each designated member personally, not just the LLP.
How Do the Two Filings Interact?
The Companies House accounts and the SA800 must be consistent. The profit figure in the SA800 should match the profit in the statutory accounts, adjusted only for tax-specific items (e.g., disallowable expenses, capital allowances).
A common mistake is filing the Companies House accounts on a different accounting period to the SA800. For example, if your LLP has a 30 April year end, the Companies House accounts cover the year to 30 April 2025. But the SA800 for 2025/26 covers the period 6 April 2025 to 5 April 2026. You need to apportion the LLP's profits between the two tax years. This is done by taking the profit for the 12 months to 30 April 2025 and allocating it across the 2024/25 and 2025/26 tax years using a time apportionment (or by agreement with HMRC if you use a different basis).
Most solicitor LLPs use a 31 March or 5 April year end to simplify this. If your year end is 31 March, the Companies House accounts and the SA800 cover almost the same period, making the apportionment straightforward.
What About the SRA Accounts Rules?
The SRA Accounts Rules do not directly dictate how you file your LLP accounts. But they do affect what appears in them. Your client account balances must be shown separately from your office account on the balance sheet. The notes to the accounts should disclose the total client money held and confirm that the firm has complied with the rules.
Your COFA should review the draft accounts to ensure the client money disclosures are accurate. A common error is netting off client account balances against office account overdrafts, which is not permitted under the SRA Accounts Rules. The accounts must show client money as a separate liability, not as part of the firm's own funds.
If your firm holds client money, you will also need an annual accountant's report under Rule 12 of the SRA Accounts Rules. This is filed separately with the SRA, not with Companies House or HMRC. The accountant's report confirms that your firm has complied with the rules during the period. Exemptions apply if you held no more than £10,000 client money at any time and the average balance did not exceed £250.
Common Mistakes and How to Avoid Them
Mistake 1: Filing the Wrong Version of Accounts
Some solicitor LLPs file abbreviated accounts at Companies House but then submit full accounts to HMRC. This is fine as long as the underlying figures are consistent. But if the abbreviated accounts omit key items (e.g., WIP or goodwill), the SA800 must still include them. Do not file abbreviated accounts with HMRC unless you are sure HMRC will accept them. Most HMRC officers expect full accounts.
Mistake 2: Missing the SA800 Deadline
The SA800 deadline is often overlooked because partners focus on the Companies House filing. Remember that the SA800 penalty applies per partner, per month. For a five-partner LLP, a two-month delay costs £1,000 in penalties. Set a calendar reminder for 31 January each year.
Mistake 3: Incorrect Profit Allocation
The SA800 must show how profits are allocated among members. If your LLP uses a complex profit-sharing model (e.g., salaried members, fixed-share partners, and equity partners), the allocation must reflect the actual legal entitlement under the LLP agreement. HMRC can challenge allocations that appear artificial. Use the LLP profit share allocation calculator to model your allocations before filing.
Mistake 4: Forgetting to File a Nil Return
If your LLP made no profit or had no activity in a period, you must still file a nil SA800. Failure to do so triggers the same penalties as a late return. The same applies to Companies House: dormant LLPs must file dormant accounts each year.
Practical Steps for Your Solicitor LLP
Here is a checklist for each filing cycle:
- Agree the accounting reference date with your accountant. A 31 March year end simplifies tax apportionment.
- Prepare management accounts and agree the profit allocation among members before the year end.
- Draft the statutory accounts in accordance with UK GAAP, including client money disclosures.
- File the accounts at Companies House within nine months of the year end.
- Prepare the SA800 using the same profit figure, adjusted for tax items.
- File the SA800 by 31 January following the tax year end.
- Ensure each member files their personal tax return (SA100 or SA200) by the same 31 January deadline, reporting their share of LLP profits.
- Arrange the annual accountant's report under the SRA Accounts Rules if your firm holds client money.
If you are unsure about any step, speak to a legal-sector-specialist accountant. The rules are not optional, and the penalties for getting them wrong can be significant for both the LLP and its members.
For more guidance on LLP structures, read our comparison of partnership vs LLP for solicitors. If you are considering a merger or acquisition, see our post-merger integration guide.