The common mistake in interim cfo month end close duties is treating the interim CFO as the automatic approver for every adjustment. That can put one person in the position of proposing, recording, and approving the same entry, while leaving managers unsure who owns the underlying decision. Approval should follow the company’s authority limits, the adjustment’s nature, and who can independently review it.

Start with the decision behind the adjustment

The right approver depends first on what the adjustment changes and why it is needed. A routine accrual based on an approved contract is different from a judgment about whether a customer balance is collectible. Both may appear as journal entries, but the second can require a business decision, supporting evidence, and a higher level of review.

Separate the accounting mechanics from the operating judgment. Finance may calculate an expense accrual from a department’s approved purchase order, while the department leader confirms that the goods or services were received. The person who understands the transaction should verify its facts; the person with accounting authority can then review how those facts are recorded.

Ask what decision the entry represents. Is it correcting a posting error, recording a known obligation, changing an estimate, reclassifying a cost, or writing off an asset? If the answer is unclear, pause approval and identify the business event first. A vague description such as “month-end cleanup” does not tell a reviewer whether the entry is routine or consequential.

The interim CFO can help make that distinction visible. They may set a close schedule, review proposed entries, challenge assumptions, and explain how an adjustment affects cash forecasts or management reporting. That work does not by itself grant authority to accept a commercial commitment, forgive a customer balance, or override a control the company has already adopted.

In practice, begin with a short inventory of recurring adjustments and the decisions behind them. Include who supplies the evidence, who checks it, who records the entry, and who approves it. This turns “the CFO signs off” into a specific workflow, and exposes entries that have no clear owner before the close becomes rushed.

Use a different approver for judgment-heavy estimates

Judgment-heavy estimates need an approver who can assess both the accounting support and the business assumptions. Examples include reserves for doubtful accounts, inventory obsolescence, warranty costs, or a significant accrual based on incomplete information. The interim CFO may recommend or challenge the estimate, but approval should follow the company’s delegated authority and available independent review.

For a customer reserve, finance can prepare aging details and document collection efforts, while the sales or account owner explains disputes, payment arrangements, or other relevant facts. An authorized finance leader can evaluate whether the proposed accounting treatment matches the evidence. If the interim CFO built the estimate, a separate reviewer is a stronger check than approving their own work.

Do not treat a spreadsheet formula as proof that an estimate is reasonable. A calculation can be accurate and still rely on a weak assumption, outdated information, or an incomplete population. The approver should be able to trace the source data, understand what changed from the prior close, and ask whether new facts support the adjustment.

The level of review should fit the potential effect, not just the size of the entry in isolation. A modest adjustment may matter if it changes a financing covenant calculation, investor report, compensation metric, or management decision. The interim CFO can identify those connections, but should not quietly redefine who has authority to approve them.

If the company has no independent finance executive, the owner or another authorized leader may need to review the assumptions and supporting documents. That can be less efficient, especially when the issue is technical, but it is clearer than assigning unlimited approval power by default. Record what was reviewed, what remains uncertain, and who accepted the underlying business judgment.

Keep routine entries within established limits

Routine entries can follow a lighter approval path when their basis is established, their inputs are traceable, and they fall within existing authority limits. Examples include recurring rent accruals, prepaid expense amortization, payroll allocations, or a standard depreciation entry prepared from an approved schedule. A stable process still needs review, but not every entry requires an executive decision.

Define “routine” by the process, not by the familiar account name. A recurring payroll accrual can become unusual if headcount data is incomplete or a bonus plan changes. A familiar rent entry may need escalation if the lease terms are disputed. The close checklist should flag changes in source data, assumptions, unusual amounts, and manual overrides.

For entries generated from a system or recurring schedule, identify who owns the source information and who checks the output. The person who uploads a journal should not be the only person confirming that the upload is complete and accurate. A reviewer can inspect the reconciliation, supporting report, and selected details without redoing every calculation.

The interim CFO can propose practical thresholds and exception rules, but those should be approved by whoever has authority to adopt them. A threshold is a routing aid, not permission to ignore a pattern of smaller errors. Related entries may deserve review together, and a low-dollar adjustment can still have a sensitive business purpose.

Keep the evidence close to the entry. The description should say what changed and why; the support should show the calculation or source document; and the approval record should identify the reviewer. When the explanation depends on a conversation, capture the relevant decision in writing. Future reviewers should not have to reconstruct the reason from a short label or someone’s memory.

Separate preparation, recording, and approval where possible

Separate preparation, recording, and approval so no one person controls the full path without a deliberate exception. In a small finance team, strict separation may not be practical for every entry. The answer is to identify the overlap and add a compensating review, rather than assuming a title such as CFO automatically resolves the control concern.

A useful division is for an operational owner to confirm what happened, a finance staff member to prepare the entry, and an authorized reviewer to approve it. The reviewer should be able to inspect the support and question the accounting treatment. If the interim CFO prepares or directs the entry, another authorized person can review it, particularly when the adjustment involves judgment or unusual circumstances.

Some companies have limited staffing, so the owner may need to review bank reconciliations, journal summaries, or selected supporting documents. Make that review specific: note which reports were checked, what exceptions were followed up, and what was approved. A generic sign-off on a close package is hard to interpret if it does not show what the signer actually examined.

System permissions matter too. Approval in an email does not prevent someone from posting an entry directly if the accounting system gives them unrestricted access. Review who can create, edit, post, and approve journals, then compare those permissions with the written process. If access cannot be divided, document the compensating check and who performs it.

The interim CFO should not bypass these boundaries just to meet a close deadline. If an entry cannot be approved through the normal route, escalate it to the owner or designated authority and state what is missing. A delayed close may be inconvenient; an unsupported entry that flows into lender or investor reporting can create a wider problem.

Match approval authority to the interim mandate

The interim CFO’s authority should be explicit in the engagement mandate and internal delegation, not inferred from the job title. The mandate can authorize close oversight, accounting policy recommendations, or interim chief financial officer approval of defined entries. It should also say which decisions remain with the owner, board, department leaders, or another executive.

Clarify whether approval means review of accounting support, permission to post, or acceptance of the underlying business decision. These are not interchangeable. An interim CFO may approve the accounting presentation of an agreed transaction while lacking authority to change its commercial terms or commit the company to additional spending.

Write down limits and escalation triggers in terms people can use. The policy might route unusual estimates, disputed obligations, or entries affecting external reporting to a designated executive. Avoid a vague phrase such as “material items require approval” unless the company defines how materiality is assessed and who makes the call in borderline cases.

Authority should also fit the company’s stage and situation. A business filling a finance leadership vacancy may need the interim CFO to run the close and brief the owner on exceptions. A company preparing for financing discussions may want tighter review of investor-facing numbers. A transition with uncertain records may require more evidence gathering before anyone approves adjustments.

When the mandate changes, update the approval map rather than relying on informal understandings. A temporary increase in access for the close should have a defined purpose, reviewer, and end point. The interim CFO can recommend changes based on what the close reveals, but the person with company authority should adopt them and communicate them to the team.

It helps to name who can approve an exception while the usual approver is unavailable. Without that backup, entries may wait in an inbox or move forward through an informal workaround. The backup should have enough context to evaluate the decision, access to the supporting records, and authority for that category of adjustment. If no suitable person is available, document the delay and the reporting consequence rather than treating silence as approval.

The mandate should also explain what happens when the interim CFO disagrees with the proposed treatment or the business owner’s assumptions. A clear route might require the issue, evidence, and alternatives to be presented to a designated executive before posting. That keeps the disagreement visible and avoids making the person responsible for closing the books the sole judge of a decision that may affect company policy or external reporting.

Connect close approvals to reporting and cash decisions

Close approvals matter beyond the ledger because adjustments can change how leaders understand cash, performance, and obligations. A reclassification may alter a department’s reported spending; an accrual may affect a forecast; a reserve may change what management considers collectible. The approver should know which reports use the number and whether the adjustment changes a decision.

Separate cash timing from accounting recognition. Recording an expense does not necessarily mean cash has left the account, and a cash payment does not always belong entirely in the current period’s expenses. The interim CFO can explain the distinction and reconcile the accounting view with the cash forecast, while the business owner confirms payment timing or operating assumptions.

If investor or lender reporting uses close data, identify which adjustments feed those reports and who reviews the final figures. Keep a record of differences between internal reporting and external reporting, including the reason and approval. Avoid making a last-minute adjustment solely to produce a preferred presentation; the support and authority should be clear before the number is circulated.

There may be a separate decision about whether an accounting adjustment signals an operational issue. A growing receivables reserve could point to slow collections, while repeated late invoices may indicate a broken handoff. The Interim cfo For internal Controls CFO can bring these patterns to the operating team, but approving the journal does not resolve the underlying process or assign responsibility for fixing it.

Use close meetings to surface exceptions that affect decisions, not to re-read every account. Ask what changed, what evidence supports the adjustment, who approved it, and whether the forecast or reporting package needs to change. This keeps strategic finance work connected to operating routines without making every close entry a leadership discussion.

When an adjustment changes an important cash assumption, show the bridge from the recorded balance to the expected payment or collection. For example, an accrued vendor expense may belong in the close even though the invoice is still pending; the cash forecast should separately reflect when payment is expected, based on the contract and operating owner’s information. The approver can then see that the journal and forecast answer related but different questions.

For investor or lender packages, assign a reviewer to compare key reported figures with the approved close and explain any adjustments made for presentation. Keep the explanation with the reporting version that was sent, not only in a working spreadsheet. If a number changes after review, the record should show who authorized the change and whether recipients need an updated report.

Escalate entries when the evidence or authority does not fit

Escalation is appropriate when the entry depends on facts no one has confirmed, a policy choice outside the interim CFO’s mandate, or an approval that would conflict with the control design. The goal is not to send every unusual journal to the owner. It is to identify the specific decision that the normal close workflow cannot resolve.

Start by stating what is known and what remains uncertain. For an unbilled service accrual, finance may have a contract and an estimate of work completed, while the operating lead has not confirmed delivery. The interim CFO can request that confirmation, assess the accounting support, and show the impact of waiting. An authorized leader then decides whether the evidence is adequate for the company’s policy.

Use the same discipline when an entry could affect an external report, financing measure, or contractual commitment. The approver should see the proposed treatment, the source documents, the alternative if the entry is delayed, and any downstream reports that would change. This makes escalation a decision with a defined scope rather than a vague request to “take a look.“

Some entries should remain unresolved until additional support arrives. A close deadline does not turn an estimate into a fact, and a proposed entry should not be posted merely because a reviewer is hard to reach. The interim CFO can identify whether an accrual, disclosure, or follow-up is appropriate under the company’s accounting process, but should not invent missing evidence or silently substitute an assumption.

Once the issue is settled, record the decision and whether it changes the workflow for future closes. If the same missing confirmation keeps holding up an accrual, assign an operating owner and a due point in the regular close process. That is more useful than relying on the interim CFO to chase the same information each month.

Set the first close priorities and handoff clearly

Early close priorities should be based on the condition of the records and the decisions leaders need to make. The interim CFO can first map the close calendar, recurring entries, reconciliations, outstanding approvals, and reporting deadlines. That review shows where authority is unclear and where a late adjustment could affect cash planning or external communication.

Agree on a practical sequence with the owner and finance team. Stabilize essential reconciliations, clarify approval routes for judgment-heavy entries, and document recurring support. Then address repeated exceptions that consume time or leave key balances unexplained. The order depends on the company’s accounting records, staffing, systems, and immediate reporting needs.

Progress should be assessed through observable work, not promised financial outcomes. Leaders can check whether required reconciliations have named reviewers, whether unusual entries have support, whether approvals are traceable, and whether recurring close issues have an owner. These indicators show whether the process is becoming more legible; they do not guarantee faster closes or better results.

Knowledge transfer should include the reasoning behind estimates and exceptions, not just a checklist of tasks. Record where source data comes from, what assumptions need periodic review, who has approval authority, and which reports depend on each balance. The permanent finance leader should be able to follow the trail without depending on the interim CFO’s memory or private files.

Before the interim assignment ends, have the incoming owner walk through a close cycle or review a representative set of entries. Resolve gaps in system access, delegated authority, and support retention while the interim CFO is still available to explain them. A clean handoff leaves the company with a usable approval process, not just a stack of signed journals.

For a company with a leadership vacancy, the first priority may be a reliable close and a clear list of unresolved judgments. During a financing process, leaders may instead need confidence about which close figures feed the materials being shared and who approves updates. In a transition with incomplete records, first establish what can be supported and where follow-up is needed. The mandate should reflect that immediate need instead of promising a broad finance transformation by default.

Set a check-in with the owner to review open exceptions and confirm whether the interim CFO’s authority still matches the work. A new financing request, a change in reporting expectations, or a shift in staff responsibilities can alter who should review an entry. Updating the approval map at that point prevents the close team from relying on an outdated delegation.

A useful handoff includes a short explanation of recurring estimates: where the inputs come from, what makes them change, and which evidence needs to be refreshed. For example, a reserve schedule is easier to maintain when the next finance lead knows how disputed balances are identified and who confirms collection updates. The aim is continuity of judgment, not just transfer of files.

Verify these points before approving an adjustment

Before approving an entry, verify that the person signing has authority for this type of decision and that the record supports both the amount and the business event. If the preparer and approver are the same person, identify who provides the independent check. If no one can explain the assumption, the adjustment is not ready for routine sign-off.

Use a short check that fits the entry rather than applying the same review depth to every journal:

What event or estimate does the adjustment represent? Who confirmed the underlying facts, and what support is retained? Who prepared, recorded, interim chief financial officer reviewed, and approved it? Does it affect cash forecasts, external reporting, or an operating decision? If authority or evidence is unclear, who must resolve it before posting?

The interim CFO can own the close process when the mandate says so, but ownership of the process is not blanket approval authority. Let the nature of the decision, the company’s delegation, and the available review determine who signs. When those three do not line up, escalate the entry instead of treating a familiar deadline as permission.