Seasonal staff vs. overtime: How to staff your warehouse for peak season

Peak season means order volume rises faster than your team can grow. When it does, you have two main ways to cover the extra work: ask your current team to work overtime, or bring in seasonal staff. Many businesses use a mix of both, and some add a third-party logistics (3PL) partner for overflow.
Each option has real costs and trade-offs. This guide compares them, shows how to work out which suits your operation, and covers how to reduce the hours you need in the first place. For the wider season, see our peak season ecommerce guide.
Seasonal staff vs. overtime at a glance
| Overtime | Seasonal staff | |
|---|---|---|
| Cost per extra hour | Premium pay on top of the regular rate, plus payroll costs | Regular or lower rate, plus recruitment, training, and supervision |
| Speed to start | Immediate | Needs recruiting and onboarding time |
| Knowledge of your operation | High | Starts low and builds with training |
| Main risk | Fatigue, more errors, and burnout | Slower early output, turnover, and supervision load |
| Flexibility | Limited by how many hours people can safely work | Easy to scale up or down by shift |
| Best for | Short peaks and small gaps | Longer or larger peaks and repeatable tasks |
When overtime makes sense
Overtime is the fastest option because the people already know your products, systems, and processes. It tends to work best when:
- The gap is small or the peak is short, such as a Black Friday and Cyber Monday weekend.
- Your team is experienced, and many are willing to take extra hours.
- You can tell people how long the extra hours will last.
The risk is fatigue. Long stretches of extra hours can lower accuracy and raise stress, and the extra pay motivates less the longer it goes on. Watch error rates, returns caused by picking mistakes, and how people are coping. Offer overtime on a voluntary basis where you can, and set limits.
When seasonal staff make sense
Seasonal hires work well when the extra volume is large or lasts for weeks, and when much of the work is repeatable, such as picking, packing, and labeling. They can also take pressure off your core team so permanent staff can focus on exceptions, customer issues, and quality checks.
- Start early. Recruiting, onboarding, and training take time, so begin well before your busiest weeks.
- Keep the first tasks simple. Give new people clear, repeatable jobs with simple instructions, and add complexity as they gain experience.
- Plan supervision. New starters need someone to ask. Pair them with experienced team members.
- Treat them as part of the team. Clear shifts, fair pay, proper safety training, and respect help with performance and with keeping good people for next year.
How to compare the costs
Compare the cost of each productive hour, not just the hourly rate.
- Overtime: the overtime rate plus related payroll costs, adjusted for any drop in speed and accuracy over long shifts.
- Seasonal staff: wages plus recruitment, equipment, training, and supervision time, spread over the productive hours they deliver. New people are slower in their first days, so count that ramp-up too.
Then estimate how much work you need to cover. A simple approach: take your forecast peak orders per day, divide by the orders one person can process per hour, and compare the result with the hours your current team can cover. The difference is the gap to fill. Use your last peak’s data for realistic picking and packing rates.
Reduce the hours you need
The cheapest hour is the one you don’t need. Before you hire, look at where your people spend time:
- Picking and packing. Better pick methods and warehouse layout cut walking time. See our guide to efficient order picking.
- Manual order handling. Automating order routing, carrier selection, and stock updates removes repetitive work. See what to automate first and our guide to rules engine workflows.
- Warehouse systems. Software that guides picking and keeps stock accurate cuts errors and rework. See when you need a warehouse management system.
- Overflow. A 3PL can absorb spikes. See our guide to 3PL warehouse logistics.
Legal basics
Employment rules for overtime, working hours, and temporary or agency workers vary by country and, in some places, by state. As examples, in the US, federal law requires overtime pay for non-exempt employees who work more than 40 hours in a workweek (US Department of Labor), and in the UK, the Working Time Regulations set an average 48-hour weekly limit unless a worker opts out (GOV.UK). Temporary workers still have employment protections, and how you classify and treat them matters. This isn’t legal advice, so check the rules where you operate with your HR or legal adviser before you decide.
How to decide: a simple plan
- Forecast. Estimate peak order volume by week, using last year’s data and your promotions plan.
- Size the gap. Convert orders into hours, and compare with your team’s capacity.
- Compare options. Look at overtime, seasonal staff, automation, and a 3PL for overflow.
- Choose a mix. Many businesses use overtime for short spikes and seasonal staff for the base increase.
- Hire and train early. Get people started before your busiest weeks.
- Monitor. Track orders per labor hour, error rates, overtime hours, and on-time shipping, and adjust.
See our guide to warehouse KPIs for peak season, and our peak season inventory planning and Black Friday and Cyber Monday guides to line up stock and staffing.
FAQs
It depends on the size and length of the peak. Overtime has no recruiting or training cost but pays a premium and can reduce accuracy over long shifts. Seasonal staff cost less per hour but need recruiting, training, and supervision. Compare the cost per productive hour for both.
Early enough to recruit, onboard, and train people before your busiest weeks. Linnworks’ order data shows most sellers have their peak preparation in place well before the rush, so start planning staffing in late summer.
Forecast your peak orders per day, divide by the orders one person can process per hour, and compare that with the hours your current team can cover. The difference is the gap. Use your own picking and packing rates from last peak.
Yes, in many operations. Automating order routing, carrier selection, and stock updates, and improving pick methods, can cut the hours spent on repetitive tasks, so you need fewer extra people.