Hourly and day-rate billing for outsourced legal support puts the variability of a firm’s caseload directly onto its costs. A quiet month and a busy month look identical on the invoice under a fixed-fee structure. They do not under hourly billing.
What is the practical difference?
A fixed fee, agreed before work begins, is the number that appears on the invoice regardless of how the month actually plays out, at the exact rates set out on our Pricing page. Hourly billing means the invoice is only known after the fact, once the month is already over.
Why does this matter more for smaller firms?
A smaller firm has less headroom to absorb an unexpectedly high invoice in a busy month, exactly the month a fixed-fee structure protects against, a point also raised in our cost comparison article. Predictability is worth something on its own, separate from the actual number.
What should a firm check before agreeing a fixed fee?
That the scope of work included is written down clearly, so both sides know what falls inside the fee and what would require a separate conversation, consistent with the approach on our How It Works page.
Why do some providers still bill by the hour?
Hourly billing shifts the risk of an unpredictable caseload onto the client rather than the provider. It’s not automatically a bad model, but it’s worth understanding whose interest it actually serves before agreeing to it, especially over a long engagement.
Does a flat fee mean unlimited work regardless of volume?
No, and a good provider will be clear about this upfront. A flat fee covers an agreed scope of work. Significant, sustained changes in volume prompt a scope conversation, not silence followed by a surprise invoice.
How does budgeting actually improve under a fixed-fee model?
A firm knows its outsourced support cost for the year in advance, which makes planning genuinely simpler than trying to forecast an hourly spend that depends on how busy any given month turns out to be.
How does this play out across a full caseload, not just one matter?
One matter rarely tells the full story. A firm running civil and commercial litigation alongside a handful of private client files sees hourly costs move independently on every file, in every direction, at once. A fixed monthly fee collapses that into one predictable number.
That matters most when the caseload mix shifts without warning, say a sudden run of disclosure-heavy instructions landing in the same month as a filing deadline crunch. Under hourly billing, that month costs more. Under a fixed fee, it doesn’t.
What does the SRA say about cost transparency?
The SRA’s price transparency rules require firms to be upfront with clients about how costs are calculated. A fixed-fee back office doesn’t change what a firm tells its own clients, but it does simplify the internal maths a partner needs to do before quoting a price at all.
Contentious and non-contentious business agreements have long had a statutory basis under the Solicitors Act 1974. The same logic, agree the number and the scope before work starts, applies just as well to a firm’s own supply arrangements as it does to what a firm charges its clients.
How do fixed fees affect forecasting through a slow quarter?
A quiet quarter under hourly billing still shows a cost, just a smaller one, so the swings run in both directions and neither is easy to predict month to month. A fixed fee removes that swing entirely, which is most of the value.
Firms managing this well tend to treat outsourced paralegal support the same way they’d treat any other fixed overhead, folded into the same annual plan as rent or software rather than re-forecast every month. Gov.uk’s guidance on managing business cash flow makes the same point for smaller firms generally: predictable costs are easier to plan around than variable ones, even when the variable cost is sometimes lower.
Does this model still work for firms covering staff leave or short-term gaps?
Yes, and it’s often where the difference is most visible. A firm covering parental or sick leave under an hourly arrangement has no idea what the final bill looks like until the cover period ends. Under a fixed fee, the number is known on day one.
The same applies to firms scaling AML and compliance checks up or down with onboarding volume, or adding research support around a single large matter. Our Pricing page sets out the three fixed packages precisely so a firm can match its need to a number before committing, and our contact form is the fastest way to talk through which one fits.
What should be written into the fee agreement before signing?
Scope is the whole game. A fixed fee only works if both sides agree, in writing, what’s included, what counts as a variation, and what triggers a scope conversation rather than extra work absorbed silently and resented later. That same discipline sits behind a proper data processing agreement: clear terms up front save arguments once work is already underway.
A vague scope, not the pricing model itself, is where fixed-fee arrangements usually go wrong. Firms weighing how to choose a provider should treat a tightly scoped agreement as a minimum bar rather than a nice-to-have extra.
How does this compare with recruitment agency fees for a temporary hire?
A temp agency placement usually carries an hourly rate plus a margin, and that margin doesn’t shrink just because the week turned out quiet. A fixed-fee litigation support arrangement charges the same whether the week is slow or frantic, which is precisely the point of agreeing a number in advance.
Firms that have already run the numbers on in-house hiring against outsourcing tend to find the fixed-fee model wins twice over: once on the headline monthly figure, and again on the certainty of knowing what next month’s invoice will say before the month has even started.
Who should still use hourly billing?
Not every arrangement suits a flat fee. A one-off, tightly bounded task with no expectation of repeat volume can sometimes be priced more fairly by the hour, since there’s no ongoing relationship to smooth costs across. The distinction is volume and duration, not preference.
For anything running month to month, though, from witness statement drafting to ongoing embedded support, a fixed fee tends to serve both sides better over a full year than a running hourly tab ever does.
How should a firm review the number a year in?
A fixed fee agreed twelve months ago is worth revisiting, not because it’s failed, but because caseload and needs shift. A short annual check-in, matching the current package against actual workload, keeps the arrangement honest on both sides rather than running on autopilot.
That’s a five-minute conversation through our contact page, and it’s the same check we’d recommend before renewing any fixed-fee administrative support or back-office arrangement, not just this one.
Does currency or exchange rate risk factor into a fixed fee?
No. The fee quoted on our Pricing page is the fee invoiced, in sterling, regardless of how exchange rates move over the term of the engagement. That risk sits with the provider, not the client firm, which is one more variable a fixed structure removes from a partner’s plate.
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Frequently Asked Questions
Are there any hidden costs on top of the flat monthly fee?
No. Flat-rate packages mean no per-head or hourly billing; scope is agreed in writing before work begins so the invoiced figure matches what was agreed.
Can a fixed fee package flex if our caseload genuinely changes?
Yes, packages can be adjusted or moved between tiers, agreed in writing as circumstances change.
Why do some outsourced providers still bill hourly?
Hourly billing shifts caseload risk onto the client. A flat monthly fee is a deliberate choice to keep costs predictable for the instructing firm instead.
What happens if actual work falls below what the fee covers in a quiet month?
The fee stays the same; the value evens out across busier and quieter months, which is the trade-off predictability involves.


