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Professional services firms
Bookkeeping for professional firms where the product is time.
Utilization, unbilled work, retainers, and realization decide whether a busy month was a profitable one. None of that shows up in a standard profit and loss.
What goes wrong
Where professional services books usually break.
Retainers are recorded as revenue on receipt, so a strong collection month looks like a strong performance month.
Unbilled work sits in the practice management system and nowhere in the ledger, so the balance sheet is missing an asset and the month is missing revenue.
Utilization and realization are tracked in a separate tool on separate definitions, so nobody can reconcile them to the financial statements.
Margin is reported by service line but not by client or engagement, so the demanding low fee client keeps getting renewed.
Pass through cost and reimbursable expense are handled inconsistently, which distorts both revenue and margin.
Partner and owner compensation is mixed with operating cost, so true operating profitability is unclear.
Industry evidence
Utilization, collection speed, and realization are the three numbers that decide the year.
66.4%
billable utilization in 2025, the lowest on record, against a 75% healthy threshold
43.3 days
average days sales outstanding in professional services, with project margin at 35.9%
88.6%
collected realization against worked value at the average law firm, and only 61.7% at firms with heavy write offs
75% to 80%
worked realization where discounting is aggressive, against 95% where pricing is disciplined
What our team handles
What the engagement covers.
01
Retainers as deferred revenue
Prepaid fees carried as a liability and recognized as work is delivered, so revenue reflects performance rather than collection.
02
Unbilled work in the ledger
Work in progress recorded and reconciled to your practice management system, so the balance sheet shows the asset.
03
Utilization and realization defined
One written definition per measure, reconciled to the financial statements, reported the same way every month.
04
Client and engagement margin
Revenue and delivery cost by client and engagement, so renewal and pricing decisions have a number behind them.
05
Pass through cost treated consistently
Reimbursable and pass through expense recorded on a stated basis so it stops distorting margin.
06
Owner compensation separated
A clear line between operating result and owner compensation, which is also what a buyer or lender will ask for.
A busy month and a profitable month are not the same month.
Firms run out of room by staying busy on work that does not realize. Utilization, realization, and engagement margin together tell you whether the effort converted, and each one has to be defined once and measured consistently.
What you should be able to see
What you should be able to answer.
- Utilization by person and by team, reconciled to the statements
- Realization against standard rates
- Unbilled work in progress and how old it is
- Days to collect, and the trend
- Margin by client, engagement, and service line
- Deferred retainer revenue still to be earned
- Operating profitability before owner compensation
Questions
What owners in this trade ask.
Can you reconcile our practice management system to the ledger?
Yes. That reconciliation is usually the first thing our team builds, because without it utilization and realization cannot be trusted.
How should retainers be recorded?
As a liability on receipt, recognized as the work is performed. It is a small change that makes every monthly report more honest.
Do you report profitability by client?
Yes, when delivery cost can be attributed. It is frequently the report that changes which clients a firm keeps.
We are a small firm. Is this overkill?
No. The definitions matter more at small scale, because one unprofitable engagement is a larger share of the year.
Related industries
Nearby work our team knows well.
Contractors
Job costing, retainage, progress billing, and change orders that never reached the books.
Electrical
Service and project work side by side, material draws, and truck stock that quietly becomes cost.
Plumbing
Call volume, warranty work, parts markup, and technician time that has to tie to revenue.
Next step
See which engagements actually pay.
Take the assessment for an immediate score and a short list of priorities, or book a call and talk it through with our team. No contact details needed to see your score.
Free. About 6 minutes. 25 questions. No contact details required.