What it means
A consulting client buys a 40-hour monthly allowance, and by the middle of the month the team has used 32 eligible hours. It has consumed 80% of its allowance, which may signal a need to discuss priorities or scope.
Glencoyne describes retainer burn-down tracking for service firms and Clio explains legal retainer arrangements and their accounting distinctions, which shows why a simple hours percentage cannot be applied to every legal or agency contract without checking terms. Read the agreement to see whether it is an hours bank, a fixed monthly deliverable, a prepaid amount or a replenished balance, and decide which work draws down the retainer, since meetings, revisions and specialist hours may have different treatment.
Record time promptly with a clear task description, because unrecorded work makes the balance look healthier than it is. For an hours allowance, divide eligible hours used so far by the included hours for that period, so 32 divided by 40 gives 80% used, which is consumption, not a per-day speed.
To forecast, compare remaining allowance with expected work and days left, since 80% use halfway through the month may be a risk but future work can vary. A monetary advance needs fee rates and approved charges applied under the contract, because one hour does not always consume the same amount, and staff mix matters when senior and junior work consume monetary retainers at different contracted rates.
Distinguish an unearned deposit from fees earned and billed, as cash received is not automatically revenue. Legal practices must follow applicable client-money and professional rules, and a marketing agency's ordinary prepaid plan may work differently, so keep billing and trust-account controls separate from a planning dashboard because one does not replace the other.
If a client has several matters, identify which retainer funds or hours belong to each, since mixing them can breach terms. Notify the client under the agreed process when a balance approaches a threshold, and do not surprise them with an overage invoice.
State what happens when the allowance runs out: pause work, seek approval, carry over or charge separately, as the contract provides. Unused hours may expire, roll over or be refunded under different agreements, so do not assume one default, and a rolling monthly allowance should reset under the contract's date rule, as calendar month and invoice anniversary may differ.
Use a shared log so the client and provider can reconcile what was done, and avoid rounding rules that systematically overstate use, because disputes often start with unclear entries. Interpret the number before acting: scope changes can increase usage even when the team is efficient, so separate extra requests from underestimated core work, and a low burn may mean the client is not using a valuable service or that the team has not recorded work.
A high burn can mean strong demand, slow delivery or a new project phase, so compare burn to progress on deliverables, and review the forecast before the end of the period, when work can still be prioritised. For a fixed deliverable, consider milestone progress rather than an hours-burn target, and discuss a consistent overrun with the client and refine the next agreement rather than silently expanding scope or cutting quality, because the measure is useful when it protects expectations, work priorities and accurate billing under the actual contract.
In practice
Real-world examples.
Example
A team uses 32 of 40 included monthly hours by day 15, so 80% of the allowance is consumed. The account manager shares the log with the client and asks which work should take priority for the rest of the month.
Example
An agency alerts a client before an approved threshold and agrees which tasks take priority. The client chooses to defer a lower-value request and keeps the allowance for a campaign launch.
Example
A law firm checks the actual retainer terms and local client-fund rules before applying earned fees. It does not treat the planning dashboard as authority for moving client money.
Formula
Calculation
Hours allowance used = eligible hours recorded in the period / included hours for that period x 100. For money retainers, use the agreed fee and charge rules instead.
Worked example. 32 eligible hours / 40 included hours x 100 = 80% used by day 15 of a 30-day month. A simple pace forecast is 32 / 15 x 30 = 64 hours, or 160% of the allowance, if work continues at the same daily rate. This is a projection, not a fact, and future work can vary.
For a monetary retainer, assume a $6,000 monthly retainer. If 10 senior hours at $200 and 22 junior hours at $100 are recorded, the charge is $2,000 + $2,200 = $4,200, which is 70% of the $6,000 even though the same 32 hours look like 80% of a 40-hour allowance.Case study
Seen in the real world.
In this fictional case, Alder Consulting found that an extra reporting request was using a client's hours faster than planned. It showed the work log and agreed priorities before the allowance ran out. The case is invented and makes no legal retainer claim.
Watch out
Common mistakes.
- Treating every prepaid retainer as earned revenue.
- Using hours percentage for a monetary balance with varied rates.
- Waiting until the allowance is exhausted to discuss scope.
Questions
People also ask.
Is burn rate always a per-day figure?
No. Teams often report percentage of an allowance used to date; label any pace forecast separately.
Do unused hours roll over?
Only if the contract says so.
Can legal client funds be treated like an agency prepaid plan?
Not safely without checking local professional rules and the specific agreement.
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