A busy desk can generate placements while losing value through rate errors, missing approvals or incomplete billing. Carry agreed rates and schedules into timesheets and finance, so the financial workflow uses the booking's existing information instead of another round of manual entry.

In healthcare staffing, margin rarely disappears in one obvious mistake. It goes in small amounts: a night uplift paid to a care worker but not charged to the client, an extension agreed by phone that never reached the booking, an expense reimbursed to a locum but left off the invoice. Each item looks minor. Across a desk filling shifts every day, together they decide whether the desk is profitable. This guide covers where margin is set, where it slips and how to keep it visible.

Agree what margin includes

Finance and recruitment should use the same definition. Include the relevant worker costs and employer costs in the calculation your agency uses. Keep currencies, periods and forecast figures clearly identified.

This matters because recruitment and finance often calculate margin differently without realising it. If consultants see charge rate minus pay rate while finance reports margin after employer costs, the two figures will never reconcile, and conversations about desk performance turn into arguments about whose number is right.

Cost lines to agree

The worker's pay, including enhanced rates and allowances.
Employer costs that apply to the payment model, such as employer taxes, holiday pay and pension or superannuation contributions.
Expenses paid to the worker that are not recharged, such as travel or accommodation for a locum.
Rebates, fees or discounts agreed in the client contract.

The payment model changes the calculation. An agency nurse paid through PAYE, a locum doctor working through a limited company, an allied health professional paid through an umbrella company and a direct engagement booking each have a different cost basis. Under direct engagement, the agency's income may be a fee rather than the difference between charge and pay, so agree how those bookings appear in margin reporting. Check current official guidance for the employer costs that apply in the UK or Australia rather than relying on older assumptions.

Labelling matters as much as the formula. An agency working in both countries should report margin in each currency rather than mixing pounds and dollars in one total. State whether a figure covers the week the shift was worked or the week it was invoiced, and whether it is forecast or actual. A manager reading a report should never have to guess which of those they are looking at.

Connect pay and charge rules

Check that the agreed night, weekend, public holiday and allowance rules are reflected on the correct side of the contract. Do not assume a pay uplift automatically creates a corresponding charge uplift; confirm the client agreement.

Rate errors usually come from a rule applied on one side only. Take an agency covering night shifts at a mental health unit. The care worker's pay rises after a set time in the evening and again on public holidays, but the client agreement may use different time bands or a flat night rate. Copy the pay uplift straight to the charge and the client queries the invoice. Miss the charge uplift and the agency absorbs the cost.

What a complete rate card covers

Day types: weekdays, weekends and public holidays, with a clear rule for shifts that cross midnight.
Time-of-day rules for evenings and nights.
Hours rules, such as an enhanced rate after a set number of hours in a shift or week.
Allowances, and whether each one is charged on to the client.
On-call, call-out and sleepover arrangements, which vary enough between clients to be set up as the agency's own rules.

Test each card with awkward shifts before it goes live: a night that starts on a Sunday and finishes on a public holiday, a sleepover interrupted by a call-out, a locum session extended by two hours. Compare the result with a manual calculation. When a client agrees new rates, record the date they take effect, so shifts already worked are not repriced by accident.

Set the expected margin at booking

The cheapest point to protect margin is before the shift is worked. Once a nurse has completed a night shift on an agreed pay rate, the agency has to pay it, whatever the charge turns out to be.

At booking, the consultant should be able to see the pay rate, charge rate and expected margin together. Agree a minimum margin for each client or role type, and require a manager's approval to book below it, with the reason recorded. There are sound reasons to accept a thin margin, such as an urgent shift for a key account or a first booking with a new client. The problem is accepting it without anyone noticing.

A typical case is a short-notice request where the only available candidate expects a higher rate than the client agreement allows for. The consultant can renegotiate the charge, accept the lower margin with approval or decline the shift. Any of those can be the right call. Booking it quietly at the standard charge is the outcome to avoid.

Track approval and billing gaps

Use digital submission and approval workflows to keep hours and expenses connected to the booking. Review the outstanding approvals, exceptions and work not yet invoiced, then assign the action needed to release those items into the financial workflow.

Unapproved timesheets are margin at risk. The worker expects prompt payment, but the agency cannot invoice until the hours are approved, so it carries the cost in the meantime. The longer an approval waits, the harder any query becomes: the ward manager who signed off the shift may have moved on, or the rota may have changed.

A weekly exceptions review

Timesheets submitted but not approved, oldest first.
Approved hours that differ from the booked hours.
Expenses awaiting approval or missing evidence.
Approved work that has not yet been invoiced.
Items flagged in the pay run that need a decision before export.

Give each list a named owner. Make approval easy for clients, too. An approver who can open a link from an email and approve without logging in is less likely to leave a timesheet waiting until the end of the month.

Give expenses the same discipline

Expenses are easy to approve late and easy to lose. A locum's travel and accommodation may be recharged in full, in part or not at all, depending on the agreement. Record which applies when the shift is booked, keep the evidence with the timesheet and check that the approved amount reaches both the worker's pay and the client invoice.

Compare forecast with actual

Review the original booking value against the live forecast and completed work. Changes to hours, extensions and rates should be understandable from the underlying records.

Track at least three figures for each placement: the original value when it was booked, the updated value after agreed changes, and the actual value from approved timesheets. RecSphere, for example, shows original, updated and actual value and margin on each placement, so a manager can see where a change came from.

The gaps are informative. Actual value below forecast may point to cancelled shifts, a candidate who withdrew or hours still awaiting approval. Actual value close to forecast but with a lower margin often means enhanced hours were paid without a matching charge. Investigate patterns rather than every small variance.

Record extensions and rate changes as changes to the booking, with their dates, rather than as free-text notes. The forecast then updates, and anyone reviewing the placement later can see why the value moved.

Use the figures in desk management

Discuss revenue and margin alongside placement volume. Review clients and working patterns that generate repeated adjustments or low returns, then agree the commercial or operational action needed.

Placement volume alone can reward the wrong behaviour. A consultant filling many short care shifts may generate less gross profit than a colleague filling fewer allied health contracts, and both may be doing exactly what the agency needs. Reviewing the measures together keeps the conversation on the right mix of work, not just the count.

Questions worth asking in a monthly review:

Which clients produce the most timesheet adjustments, credit notes or invoice queries?
Which shift patterns, such as short-notice nights or weekend cover, carry the lowest margin once enhancements are paid?
Which placements were booked below the agreed minimum, and was that approved?
Where is approved work waiting longest to be invoiced?

Then agree the action. That may mean renegotiating a rate, changing the client's approval contact, tightening booking notes or deciding that a low-margin account is still worth keeping for other reasons. Record the decision, so the same discussion does not restart every month.

Common margin leaks

Cancellation or minimum-hours terms in the client agreement that are never charged.
Unpaid breaks deducted from the worker's hours but not from the charged hours, or the other way round.
A candidate moved to a different ward or site with its own rates, without the booking being updated.
Expenses the agreement allows the agency to recharge, left off the invoice.
Disputes settled with credit notes because the original rate terms were unclear.