The Law Firm Financial Year Planner: Prepare for Tax, PII and Growth

From professional indemnity insurance and practising certificate fees to VAT, Corporation Tax and partner tax liabilities, law firms face a range of predictable financial commitments throughout the year. A forward-looking financial plan can help your firm prepare for these costs, protect working capital and make better decisions about growth.

Running a successful law firm involves more than generating fees and managing client matters. Partners and finance teams must also ensure that the business has sufficient cash available to meet its obligations when they fall due.

The challenge is that these commitments rarely arrive in isolation.

A significant tax payment may coincide with payroll, a PII renewal or an investment in new staff. Meanwhile, income from completed legal work may still be tied up in unbilled work in progress or unpaid invoices.

The result can be a cash-flow squeeze, even when the firm's underlying performance is healthy.

The Law Society's Financial Benchmarking Survey 2026 reported that median lock-up had fallen to 134 days among participating firms, down from 146 days in 2024. Although this represents an improvement, it illustrates the length of time that can pass between undertaking legal work and receiving payment.

For law firm leaders, the lesson is clear: financial planning should consider not only how much the firm expects to earn, but when money is likely to arrive and when it needs to leave the business.

A rolling 12-month financial planner can help bring these commitments together, highlight potential pressure points and give partners time to consider their options.

Why Law Firms Need a Financial Calendar

Many of the largest costs facing a legal practice are foreseeable. Their exact amount and timing will depend on the firm's structure, accounting period, insurance arrangements, workforce and practice areas, but they should not come as a surprise.

A financial calendar helps firms bring these obligations into one place rather than managing each one separately.

Predictable Costs Can Still Create Unexpected Pressure

Consider a firm approaching the end of a quarter.

It may have VAT to pay, salaries due, several substantial invoices awaiting settlement and a PII renewal approaching. The firm may be expecting sufficient income over the next few months, but that does not guarantee it will have enough cash available on the relevant dates.

This is a timing issue. However, without a clear forecast, the firm may only recognise the shortfall when it becomes urgent.

A financial calendar allows the firm to identify these overlaps in advance and consider whether it needs to accelerate collections, phase discretionary spending, strengthen reserves or explore appropriate funding.

Cash Flow, Profit and Available Cash Are Different Measures

A profitable firm can still experience a shortage of available cash.

Fee income may be recorded before an invoice is paid, while payroll, rent and other operating costs need to be covered throughout the year. A firm may also have money in the bank that is already needed for VAT, tax, client-related obligations or other commitments.

Financial planning should therefore distinguish between:

• Profitability: whether the firm's income exceeds its costs over a given period.

• Cash flow: the timing of money entering and leaving the business.

• Available working capital: the resources the firm can use to meet operating needs after accounting for upcoming obligations and restrictions.

Understanding these differences helps partners make more informed decisions about spending, investment and borrowing.

The Key Financial Commitments to Include

Every law firm should build its calendar around its own obligations. The following areas provide a useful starting point.

1. Professional Indemnity Insurance

PII is one of the major annual financial commitments for many law firms.

The renewal process should be planned well ahead of the policy expiry date, allowing time to prepare information for the broker, review the firm's risk profile, compare suitable quotations and assess the proposed terms.

The financial plan should include:

• The expected renewal date.

• The estimated premium and any associated costs.

• The likely payment date and available payment arrangements.

• The amount of cash the firm expects to retain after paying the premium.

• Any implications for other planned expenditure.

Firms should assess more than the headline premium. Policy wording, cover, exclusions, insurer strength and the firm's risk requirements remain important.

Where a premium represents a significant outlay, firms may also wish to consider whether paying in full or spreading the cost provides the better overall financial outcome.

2. Practising Certificate Fees and Regulatory Costs

Solicitors and SRA-regulated firms face annual practising certificate and firm periodic fee obligations.

The SRA's approved 2026/27 fee policy sets the individual practising certificate or registration fee at £382, with a £170 individual Compensation Fund contribution. The combined individual payment is therefore £552 for a standard practising certificate holder, before considering the firm's separate periodic fee and other applicable charges.

Firms should use the SRA's current fee information and calculator to establish their own expected costs, including the number of relevant individuals, any applicable discounts and the firm's periodic fee.

Planning should include:

• The number of practising certificate holders expected to renew.

• The firm's periodic fee and any relevant Compensation Fund contribution.

• Responsibility for checking the renewal details.

• The date funds need to be available.

• Any changes to headcount or firm structure that may affect the forecast.

The SRA's annual renewal window runs from 1 to 31 October. Firms should plan ahead of that period rather than relying on a last-minute calculation.

3. VAT Payments

VAT can represent a significant outgoing, particularly for firms with substantial taxable turnover.

The timing of VAT payments depends on the firm's VAT accounting period and arrangements. For many businesses filing standard quarterly VAT returns, payment is generally due one calendar month and seven days after the end of the accounting period.

Firms should confirm their own deadlines with HMRC and include them in the financial calendar.

A good VAT forecast should account for expected VAT due, the timing of client receipts and any relevant adjustments. It should also recognise that VAT collected from clients is not necessarily money the business can safely treat as available for general expenditure.

Setting aside the expected liability and reviewing the forecast regularly can reduce the risk of a payment becoming difficult to meet.

4. Corporation Tax

Corporation Tax deadlines depend on the firm's accounting period and tax position.

For many companies with taxable profits of up to £1.5 million, Corporation Tax is due nine months and one day after the end of the accounting period. Different payment arrangements apply to larger companies, including those required to pay by instalments. The £1.5 million threshold is subject to associated-company and other rules, so firms should confirm the applicable position with their accountant or tax adviser.

The important planning point is to estimate the liability well before the payment deadline.

Firms should work with their accountant to update the forecast as profits change, rather than relying solely on a previous year's tax figure.

5. Partner Tax Liabilities

For partnerships and individual partners, personal tax obligations add another layer to financial planning.

The firm's financial position and each partner's personal tax position are connected, but they are not interchangeable. A partner may need to plan for a personal tax payment while the firm must preserve sufficient funds for payroll, overheads and business liabilities.

The calendar should distinguish between business liabilities and individual partner commitments.

Where partner tax funding is being considered, the structure should reflect who is borrowing, what liability is being funded and how repayment will be managed.

6. Payroll, Recruitment and Operating Costs

Regular costs should sit alongside the larger annual payments.

These include salaries, employer National Insurance contributions, pension contributions, rent, software, professional fees, training and other operating expenses.

Firms planning to recruit should forecast the additional cost from the expected start date, including recruitment fees, onboarding and the time it may take for a new fee earner to generate collected income.

This is particularly important where recruitment coincides with a tax payment, PII renewal or other major expenditure.

7. Partner Changes, Acquisitions and Investment

A financial calendar should also include significant events that may not happen every year.

These could include partner retirements, capital repayments, new partner contributions, office moves, acquisitions, technology projects or expansion into a new practice area.

These decisions can require substantial expenditure before the financial benefit is realised.

Where a transaction or investment is being considered, the forecast should include both the initial outlay and the additional working capital needed to support the business afterwards.

How to Build a Rolling 12-Month Cash-Flow Forecast

A financial calendar is most useful when it informs an actual cash-flow forecast.

Rather than looking only at the current month, a rolling forecast should project the firm's expected receipts and payments over the coming 12 months and be updated regularly.

Step 1: Record Every Significant Payment

Start with a list of known or expected financial commitments.

Include tax payments, PII, practising certificates, payroll, supplier costs, loan repayments, partner-related payments and planned investment.

Record the expected amount, payment date, confidence level and person responsible for confirming the figure.

Where the amount is uncertain, use a reasonable estimate and update it when better information becomes available.

Step 2: Forecast Client Receipts Realistically

Income forecasts should reflect when money is likely to be received, not simply when work is completed or invoiced.

Review WIP, aged debtors, billing schedules and the expected collection dates for significant invoices.

Where a receipt is uncertain, avoid assuming it will arrive on the earliest possible date. Consider a delayed-payment scenario so that the firm can understand how sensitive its cash position is to changes in collection timing.

Step 3: Identify Pressure Points

Compare projected receipts and payments to identify periods when available cash may fall below the firm's preferred operating reserve.

A simple monthly forecast can help, but firms with large transactions, significant client receipts or substantial one-off liabilities may need a more detailed weekly view for selected periods.

The purpose is to identify potential shortfalls while there is still time to act.

Step 4: Model Different Scenarios

A useful forecast should not depend on everything going according to plan.

Consider at least three scenarios:

• Expected case: receipts and payments occur broadly as anticipated.

• Delayed-receipts case: one or more substantial invoices are paid later than expected.

• Downside case: revenue falls short, costs increase or a planned investment takes longer to generate income.

These scenarios help partners assess whether the firm can absorb a setback without compromising essential commitments.

Step 5: Review and Update the Forecast

The forecast should be reviewed regularly by the people responsible for financial management.

Update it when invoices are collected, liabilities change, recruitment plans move or new commitments arise.

A forecast that is reviewed consistently is far more valuable than a detailed spreadsheet that is only revisited when cash becomes tight.

What Should a Law Firm Do if a Shortfall Is Forecast?

Identifying a potential shortfall does not automatically mean the firm needs external finance.

The first step is to understand its cause and assess the available options.

Improve Billing and Collection

Where cash is tied up in unbilled work or overdue invoices, better billing discipline and active credit control may reduce the need for additional funding.

Review the reasons for delayed billing, agree responsibility for resolving outstanding queries and follow up overdue invoices consistently.

Review the Timing of Discretionary Expenditure

Where appropriate, firms may be able to phase non-essential expenditure or adjust the timing of planned investment.

This should be balanced against the commercial consequences. Delaying an important recruitment decision or essential technology investment may create a different problem.

Protect an Appropriate Working-Capital Reserve

Partners should agree the minimum level of available cash the firm needs to operate comfortably.

The appropriate amount will depend on the firm's size, cost structure, practice areas, collection patterns and exposure to unexpected expenditure.

A reserve provides a buffer against delays and helps prevent every large payment from becoming a crisis.

Consider Suitable Funding Options

Where a genuine timing gap remains, external finance may be worth exploring.

Depending on the firm's circumstances and eligibility, options may include PII premium funding, practising certificate funding, VAT and tax funding, WIP and debtor finance, working-capital facilities, partner-exit funding or acquisition and growth finance.

Different facilities serve different purposes. The firm should compare the total cost, repayment structure, eligibility requirements and effect on future cash flow before proceeding.

Funding should support a realistic financial plan rather than postpone an underlying problem the business cannot afford to resolve.

How Key Business Professions Can Help

Key Business Professions specialises in funding solutions for the UK legal sector.

We understand that law firms must balance recurring regulatory obligations, tax liabilities, insurance costs and operating expenditure with the timing of client receipts and the demands of running a successful practice.

A clear financial forecast helps firms understand where funding may be needed, how much may be required and when it should be arranged.

Depending on the firm's circumstances, KBP can discuss options across PII and practising certificate funding, VAT and tax funding, WIP and debtor finance, partner-exit funding, acquisition finance and growth funding.

All facilities are subject to the relevant eligibility criteria, assessment and terms.

Plan Ahead Rather Than React to a Deadline

A law firm's financial year is shaped by recurring obligations, the timing of client receipts and the commercial decisions that support its future.

Bringing these elements together in a rolling 12-month financial plan can help partners anticipate pressure points, protect working capital and make more informed decisions about investment.

The goal is not to predict every financial event perfectly. It is to understand what is coming, recognise where uncertainty exists and give the firm time to respond.

If your firm is preparing for a major financial commitment or reviewing its funding requirements for the year ahead, speak to Key Business Professions about the options that may be appropriate for your practice.

This article provides general information and is not a substitute for legal, accounting or tax advice. Firms should confirm their individual obligations and payment deadlines with the relevant regulator, HMRC and professional advisers. All finance is subject to eligibility, assessment where applicable, and the relevant terms and conditions.