Designing a timesheet approval workflow people do not dread
Most approval processes exist to catch errors nobody makes. Here is a lighter design that still protects invoicing and payroll.
Short answer
What should a manager actually check when approving a timesheet?
Check four things only: that every working day has entries, that hours are attached to the right project, that entries exceeding the expected day are intentional, and that anything billable to a client is described well enough to defend on an invoice. Everything else is noise, and reviewing it line by line does not improve the data.
Key takeaways
- Approval is a sampling exercise, not a full audit. Reviewing every line trains managers to approve without reading.
- A weekly rhythm beats a monthly one: corrections are cheap while the week is fresh and free before invoicing.
- Approve at team level with exceptions highlighted, rather than person by person.
- Define in advance what happens to a correction that arrives after invoicing, or it will be handled differently every time.
Why heavy approval processes fail
When a manager has to review two hundred lines a month, they stop reading after the first twenty. The process still runs, the button still gets clicked, and everyone believes the data has been checked when nothing has been checked at all.
Worse, a heavy process pushes the review to the end of the month, which is precisely when a correction is most expensive because invoices are being prepared and payroll is closing.
The four checks that are worth doing
Reduce the review to questions a manager can answer in a couple of minutes for the whole team. Anything that cannot be answered quickly should be a rule enforced at entry time instead of a human check.
- Completeness: does every working day have entries, absences excluded
- Attribution: are hours on the right project and client
- Plausibility: are days well above the expected duration intentional
- Defensibility: is billable work described well enough to appear on an invoice
A rhythm that keeps corrections cheap
Weekly review, monthly close. On Monday, a manager looks at the previous week for the whole team and only opens what stands out. At the end of the month, the close is a formality because nothing has accumulated.
This rhythm changes the nature of the conversation. A missing Wednesday spotted on Monday is a two-minute fix; the same gap discovered three weeks later is an investigation into what someone was doing, which nobody enjoys.
Let the tool enforce what a human should not
Rules belong in the software. Expected daily hours, allowed projects per person, mandatory notes on billable projects and a maximum entry duration all prevent errors before they need approval.
The best signal a manager can be given is a short exception list: incomplete days, unusually long entries, hours on projects the person is not normally assigned to. That list is the review; the rest of the timesheet does not need eyes on it.
- Set expected daily hours per person or team
- Restrict project selection to actual assignments
- Require a note on billable projects
- Surface exceptions instead of asking for a full read
Decide the correction policy in advance
Corrections after a period is closed are unavoidable: a forgotten day surfaces, a client disputes a line, an entry lands on the wrong project. What causes friction is deciding what to do each time it happens.
Write the policy once. Who can reopen a closed period, whether the correction is applied to the original period or to the current one, and whether the client is re-invoiced or the difference is absorbed. Then keep a trace of every correction, because that trace is what makes the record credible if it is ever questioned.
Frequently asked questions
Should timesheets be approved weekly or monthly?
Review weekly and close monthly. The weekly pass keeps corrections trivial and takes a manager a few minutes, while the monthly close becomes an administrative formality rather than a reconciliation exercise.
Who should approve timesheets?
The person who knows what the work was, which is usually the team or project manager, not finance. Finance should receive a validated export, not arbitrate whether an entry belongs to a project.
What if an entry is corrected after invoicing?
Apply a pre-agreed rule: either reopen the period and issue a corrective invoice, or record the correction in the current period with a note referring to the original date. Either is defensible; improvising each time is not.
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