Let me lead with the verdict: in a warehouse, 80% of overtime pay isn't earned by working — it's created by approving. Two 200-person warehouses, same peak season: Warehouse A's overtime runs 8% of labor cost, Warehouse B hits 18%. The difference? In Warehouse B, overtime approval is a rubber stamp. Whoever wants overtime fills out a form; the supervisor signs with eyes closed.
Frankly, this cuts two ways: sometimes there's genuinely too much work, and sometimes management has a hole in it. Today's topic — warehouse overtime approval — is about plugging that hole: who gets to approve, how much, and what they must check first.
I've Seen Too Much Runaway Overtime
Let me tell you about a pit I walked into personally. In 2019, I was consulting for a 3PL in Fontana, Southern California. Their overtime approval process: the team lead mentions it verbally to the supervisor, the supervisor checks a box on the timesheet, HR pays by the checks at month-end. No estimated hours, no stated reason, no review.
I pulled three months of data and found three surreal patterns. First: Friday overtime requests were triple Monday-through-Thursday — by Friday everyone's checked out mentally, productivity dips, work doesn't finish, and overtime becomes "inevitable." Second: two teams consistently logged double the overtime of everyone else — turns out those two leads were handing out overtime as a "perk." Crew members wanted extra pay; leads played Santa. Third: night shift had the most overtime, yet night-shift volume was 30% lower than day shift.
Add it up: over $400K a year in excess overtime, at least half of it "approved" into existence rather than worked into existence.
Three Gates for Warehouse Overtime Approval
Two sides to this: overtime that's truly needed must be affordable; overtime that isn't must be stoppable. I built three gates for that 3PL. Six months later, overtime dropped from 17% to 9% of labor cost — while peak-season volume grew 12%.
Gate one: who approves. Team leads may only request, never approve. Approval sits with the supervisor, who must fill in three numbers before signing: today's planned volume, current completion, and the gap converted to hours. Approving 2 hours of overtime means writing down which 800 orders those 2 hours cover. Can't write it? No approval. This one change killed most "favor overtime" — try writing "I'm approving this because my buddy wants extra cash" to someone's face. You can't.
Gate two: caps on how much. Two lines: no individual works more than 2 consecutive overtime hours per day (beyond that, productivity falls off a cliff — pure money-burning); no team exceeds 15% of planned hours in weekly overtime. Over the line? Two options: borrow people from another team, or push non-urgent orders to tomorrow. Frankly, overtime is a painkiller. If you're taking painkillers daily, the disease is untreated — and the disease is broken scheduling and workforce planning.
Gate three: after-the-fact review. Every Monday morning, the ops manager spends 20 minutes on last week's overtime report: which teams exceeded, why, whether it's recurring. Two consecutive weeks of overtime for the same reason means it's not "temporary" — it's structural. Then the fix isn't approving overtime, it's hiring, rebalancing flow, or fixing the schedule. I've seen too many warehouses approve overtime for a year straight without anyone ever looking back at the report. That's not approval, that's theater.
| Gate | Rule | What it stops |
|---|---|---|
| Approval authority pulled up | Leads request, supervisors approve, three numbers required | Favor overtime, casual overtime |
| Caps | Individuals ≤2h/day, teams ≤15%/week | Fatigue-driven overtime, normalized overtime |
| Post review | Weekly report review; recurring causes become process fixes | Management laziness that treats overtime as normal |
The Counterintuitive Call: Cutting Overtime Doesn't Have to Kill Morale
Many managers won't touch overtime approval because they're afraid of angering the floor — "people count on that extra pay." Two sides to that as well.
At that Fontana 3PL, the first three months of reform did bring complaints. But we did two things in parallel. First, we converted part of the savings (about 30%) into "efficiency bonuses" — teams hitting targets within standard hours earned slightly more than they used to make on overtime. Second, radical transparency: every team's efficiency numbers posted weekly.
The result? Six months later, turnover fell from 38% to 24%. Why? Workers discovered they could earn the money without the overtime — and get home on time. Warehouses that retain people with overtime pay retain the people most inclined to coast; warehouses that retain people with efficiency bonuses retain the people who actually produce. That trade-off is worth every warehouse manager's thought.
Three Pieces of Advice for Warehouse Managers
First, the first principle of overtime approval: ask "why is overtime needed" before "how many hours." Overtime with an unclear cause gets no approval. Period.
Second, mind the compliance lines in the US. California overtime is 1.5x after 8 hours and 2x after 12 (check the latest official policy); federal FLSA is the 40-hour week. Loose approval doesn't just cost money — a labor department penalty makes the overtime look cheap by comparison.
Third, treat overtime data as a management dashboard. Which team, which shift, what cause — review those three dimensions weekly. Where overtime concentrates is where management is weakest.
Warehouse overtime approval isn't really about those few hours. It's about management fundamentals. Get the fundamentals right and overtime shrinks on its own; get them wrong and no approval process, however strict, is more than treating symptoms.
By Lao Mi, Supply Chain Veteran (20 yrs)
