Law firm cost, spend and fixed-fee decisions
Trace proposed spend to a bottleneck and measurable benefit. Use it when a cost is called an investment without an operating case, when fixed fees are being considered, or when rising costs prompt urgent decisions.
Boundary: this is not accounting, tax, pricing or investment advice. Use qualified advisers for financial decisions.
Operational guidance, not legal advice. No confidential information is needed. Original PDF editions (all v1, 18 Aug 2026, now combined into this single maintained page): Law Firm Growth Expense Review, Fixed-Fee Billing Readiness Guide and Law Firm Inflation and Cost Control Workbook.
1. Frame the decision
Trace cost and value to a defined workflow. Separate cash, records, lawyer time and client-facing price information.
Specific focus - pick the line that matches your situation:
- Expense review: record constraint, full cost, expected change, owner and stop rule.
- Fixed fees: use matter evidence to define inclusions, variation and exceptions.
- Cost control: trace each cost to workflow and test effects on quality and service.
Questions to answer:
- Which decision is being made?
- What is the baseline?
- Which costs are avoidable?
- What client wording changes?
Avoid:
- headline figure without period
- mixing client and business money
- assuming lower cost means better value
2. Control sheet
Treat a blank evidence field as a reason to pause, not a reason to guess. Record sources and owners before changing the workflow.
| Area | Evidence to collect | Pass condition |
|---|---|---|
| Scope | Matter type and period | Like-for-like |
| Cost | Source and allocation | Reproducible |
| Price | Method and inclusions | Information is accurate |
| Control | Approval and exception | Authority is clear |
| Review | Outcome and collection | Result is measured |
Fail closed: if an input, owner or approval is missing, record the gap and keep the affected step outside the proposed change.
3. Working record
Complete this page with counts, dates and named sources. Do not include client names, matter names, contract text or privileged material.
| Field | Evidence or answer |
|---|---|
| Decision | |
| Current cost | |
| Denominator | |
| Client effect | |
| Approval | |
| Review measure |
Evidence quality check:
- The source is named and dated.
- An estimate is labelled as an estimate.
- The owner can reproduce the measure.
- The same method can be used after a change.
4. Decision record
Select the outcome that the evidence supports. A stop or no-change decision is valid.
- Stop: a required source, owner or approval is missing.
- Fix: repair the underlying route before adding technology or cost.
- Test: run one bounded change with a baseline and review date.
- Proceed: adopt only the option supported by the recorded evidence.
| Decision field | Record |
|---|---|
| Chosen outcome | |
| Reason and evidence | |
| Owner and approvers | |
| Review or expiry date |
Related pages: the growth worksheet (/resources/law-firm-growth-without-extra-headcount/), the opportunity map (/resources/law-firm-ai-opportunity-map/) and the guides hub (/law-firm-guides/). Questions: hello@margolegal.com.
Primary sources
- SRA - Transparency in price and service: https://www.sra.org.uk/solicitors/resources/transparency/
- SRA - Accounts Rules: https://www.sra.org.uk/solicitors/standards-regulations/accounts-rules/
- SRA - Accurate client accounting records: https://www.sra.org.uk/solicitors/guidance/accurate-client-accounting-records/
- SRA - Client care letters: https://www.sra.org.uk/solicitors/guidance/client-care-letters/
Source status: links checked 15 September 2026 (all four SRA pages verified live 200). Confirm the current version and obtain appropriate professional advice before relying on regulated, contractual, privacy, security, insurance, financial or wellbeing conclusions.
MARGO LEGAL LTD, company number 17322603. Registered in England and Wales. Registered office: 66 Paul Street, London, England, EC2A 4NA. Originally published as three PDF guides (v1, 18 August 2026); consolidated and converted to HTML 15 September 2026.