Who should approve facilities and janitorial invoices?

Executive Summary

Facilities and janitorial invoices usually route to one approver, often the facilities manager, because the spend feels small and repetitive next to freight or IT. That single-approver model is the mechanism, not the spend itself, that lets drift persist: one person checks whether the building got cleaned, not whether the invoice matches the contract's square footage, frequency schedule, or supply allowance.

The fix is not a bigger approval committee. It is separating two questions that a facilities manager cannot answer alone: did the vendor perform the work, and does the invoice match the contract terms that define what performance should cost. The first question belongs with the person on site. The second belongs with whoever holds the contract and can read a rate schedule against a line item.

Splitting those two checks across two roles, with a documented handoff, closes the gap without adding headcount. It also creates the audit trail a controller needs when a vendor's invoice changes shape month to month and nobody can say why.

1. Who should approve facilities and janitorial invoices?

Two people, not one. A site or facilities manager confirms the work happened: the floors were cleaned, the schedule was followed, a call-out was resolved. A second approver, usually in AP or procurement, confirms the invoice matches the contract: the rate per square foot, the frequency billed, and any supply or consumables allowance.

One approver checking both questions is how a correctly performed service still gets billed incorrectly and nobody notices.

Most facilities invoices today get one signature, from the person closest to the building. That person is well placed to judge whether the space is clean. They are not well placed, and are not asked, to compare the invoice's billed frequency against the contract's stated frequency, or to check whether a supply line item is billed separately when the contract says it is included.

Splitting the approval does not mean slowing it down. The site manager still signs off on performance, on the same day. The second signature, on contract match, can run against a standing rate table rather than a manual read of the contract each month, once that table exists.

The two approvals should be visible to each other. A facilities manager who sees the contract terms next to the invoice starts flagging drift on their own, because they are the one who knows the schedule was actually cut from five days to three last quarter.

2. What is the facilities manager actually able to verify?

A facilities or site manager can verify presence and outcome: staff showed up, the schedule was followed, a work order was closed, a complaint was resolved. They generally cannot verify pricing, because the contract's rate card, minimum charge, and consumables terms are not documents they hold or reference day to day. Asking one person to sign for both performance and price is asking them to check something they were never given the reference material to check.

A site manager's approval answers a real and necessary question. If the invoice bills for a Tuesday deep clean that did not happen, that manager is the only person positioned to catch it, and their sign-off should stay in the process.

But their sign-off is not evidence the invoice is priced correctly. The contract may specify a rate per square foot that changes with occupied space, a minimum monthly charge regardless of visits, or a consumables allowance capped at a dollar figure. None of that lives in the facilities manager's day-to-day view of the building.

Treat their approval as a performance check, label it as one, and route the invoice to a second approver for the pricing check. That second check is where a maintenance and MSA invoice audit approach applies even though janitorial contracts are simpler than most maintenance MSAs.

3. Which contract terms does the second approver need to see?

The second approver needs four figures pulled out of the contract and kept somewhere faster to check than the contract itself: the rate basis, whether per square foot, per visit, or flat monthly, the contracted frequency, any minimum charge, and what is included versus billed separately, such as paper products or floor stripping. Without those figures in front of them, the approver is reduced to the same visual check the site manager already did.

Pulling these terms into a single reference sheet, rather than re-reading the contract each cycle, is what makes the second approval fast enough to keep in place. A rate table that lists the basis, frequency, minimum, and inclusions for each site turns a contract review into a lookup.

The four figures matter because each one drives a different kind of drift. A rate basis change shows up as a per-unit price shift. A frequency change shows up as more or fewer visits billed than agreed. A minimum charge interacts badly with occupancy changes. Inclusions determine whether a separate supply line is legitimate or double billing.

Without this reference, the second approver has no faster path than reading the full contract for every invoice, which is why the check gets skipped in practice.

• Rate basis: Per square foot, per visit, or flat monthly. This determines what a change in billed amount should mean.
• Contracted frequency: How many visits or service days the base rate covers, so a schedule change shows up as a line item change, not a surprise.
• Minimum charge: Some janitorial contracts bill a floor regardless of square footage occupied, which needs checking against occupancy changes.
• Included versus billed separately: Supplies, floor stripping, and window cleaning are sometimes bundled and sometimes itemized. The invoice needs to match which one the contract says.

4. How does scope drift show up on a janitorial invoice?

Scope drift on a janitorial contract looks like a service reduction that never reaches the invoice, or an add-on that never reaches a change order. A vendor cuts nightly cleaning to three days a week during a slow season and the rate never adjusts. A one-time strip-and-wax job appears as a recurring line.

Neither requires a pricing error to cost money: the invoice can be arithmetically correct and still bill for a scope the building no longer receives.

This is the same failure mode covered in more depth for maintenance contracts in scope drift on maintenance work orders: an agreement made verbally at the site level that never updates the paperwork the invoice is checked against.

For janitorial spend specifically, the trigger is usually a headcount or square-footage change. A facility that closes a wing or reduces shift coverage often renegotiates the cleaning schedule informally, over email or a phone call with the site supervisor, without a written amendment. The invoice keeps billing the original schedule.

The second approver cannot catch this from the contract alone, because the contract was never updated. This is why the two approvals need to talk to each other: the site manager knows the schedule changed, and the contract-match approver knows the invoice did not.

5. Should facilities and janitorial spend be approved the same way as maintenance and repair?

No, and treating them identically is a common design mistake. Maintenance and repair invoices vary by work order and need line-by-line labor rate and parts checks each time. Janitorial invoices are usually flat or near-flat recurring charges, so the more useful control is a standing comparison against the contract baseline, with an exception flag whenever the billed amount moves, rather than a full re-check of every invoice line each month.

A recurring janitorial invoice that matches last month's amount within the expected range needs a lighter check than one that changed. Set the baseline once, from the contract terms, and route only the invoices that deviate from it to a full review. That keeps the second approver's time on the invoices where drift is actually possible.

This differs from how maintenance and repair invoices need to be checked, where every work order carries its own labor hours, parts, and often a warranty question covered separately in warranty work billed as new work. Applying that per-work-order rigor to a flat monthly janitorial bill wastes approver time on invoices that are not where the risk sits.

The risk in janitorial spend sits in the update, not the routine. Someone changes the schedule, the space, or the supply terms, and the invoice does not follow. Design the approval to catch changes, not to re-verify a static contract every cycle.

6. What does a documented approval trail need to show?

A documented trail shows two things for every invoice: who confirmed the work was performed, and who confirmed the invoice matches the contract, with each sign-off timestamped separately. If a controller or auditor later asks why an invoice increased, the trail should show which approver saw the change and what they checked it against, rather than a single signature that could mean either check happened or neither did.

A single approval field in most AP systems collapses both questions into one signature, which is exactly the gap this page describes. Where the system allows it, add a second approval step or a second field, even a simple checkbox, that separates service confirmed from matches contract terms.

This matters most when spend is reviewed after the fact, whether by a controller doing a periodic check or during a broader indirect spend audit. A reviewer who can see that only performance was checked, and pricing never was, knows exactly where to look first.

It also protects the approvers themselves. A facilities manager who only ever signed for service delivery should not be the name attached when a pricing error surfaces a year later. The trail should make that distinction as clearly as the process does.

For the wider pattern this sits inside, start with the margin drift guide.

7. Frequently Asked Questions (People Also Ask)

Should the facilities manager be able to approve the invoice alone if the amount is small?

A low dollar threshold does not remove the pricing risk; a small recurring overcharge compounds over a contract term the same way a large one does. If a single-approver path is used below a threshold, it should still be routed through the contract-match check periodically, not exempted permanently.

Who should own the contract terms reference sheet?

Whoever holds the vendor contract, typically procurement or facilities management at the contract level rather than the site level. That sheet needs to be kept current when the contract renews or amends, or the second approval check is comparing against a stale baseline.

What happens if the janitorial vendor invoice format changes?

A format change is a reason to re-run the full contract-match check, not skip it. A new invoice layout can hide a rate or frequency change inside a relabeled line item that looks unfamiliar rather than wrong.

Does a facilities and janitorial contract need the same audit approach as staffing or labor contracts?

No. Staffing contracts carry labor rate deviations against master service agreements and headcount-based billing that need different checks than a flat-rate cleaning contract. Use the approach suited to how the contract actually bills.

Can AP catch facilities invoice drift without input from the site?

AP can catch a pricing mismatch against the written contract, but cannot catch a schedule change that was agreed verbally on site and never documented. Both approvers are needed because each holds information the other does not.

Should supply costs be billed separately or included in the base rate?

Whichever the contract specifies. The risk is not which model is used, it is a mismatch between what the contract states and what the invoice actually bills, which is exactly what the second approval is meant to catch.

How often should the contract baseline be refreshed?

Whenever the contract renews or amends, and whenever the site reports a service change. A baseline that predates the current terms produces false confidence rather than a real check.

Is this approval structure specific to janitorial spend or does it apply elsewhere in facilities?

The same split, performance confirmed by site staff and terms confirmed against the contract, applies across most facilities services. The relative weight given to each check should shift based on how much the invoice varies month to month.