Guide

How to cut warehouse labour costs without automation

Seven practical ways to reduce labour costs in a UK warehouse, cheapest first, with real 2026 figures.

Updated November 2026 · 7 min read

Labour is the biggest cost in most UK warehouses, and it keeps rising: the National Living Wage went up to £12.71 an hour in April 2026. Many operators assume the only real answer is automation. For most small and mid-sized sites it isn't. The biggest savings usually come from how the work is planned and run, and those changes cost little or nothing.

1. Work out what an hour really costs

Start with the true cost of an hour, not the hourly rate. On top of pay you have employer National Insurance (15% above £5,000 a year), at least 3% employer pension on qualifying earnings, and the cost of covering holidays. For a full-time operative on the National Living Wage, NI and pension alone add about 15%.

That last line is the point. On a labour bill this size, small improvements are worth real money, which is why it pays to look at the basics before buying anything.

2. Plan labour to the order curve, not the rota

Most overtime and agency spend comes from a mismatch between when people are on shift and when the work arrives. If orders land in a mid-morning wave and carriers collect at 4pm, a flat 8-to-4 rota means people waiting early on and a scramble at the end.

• Pull a few weeks of order data and chart it by hour and day of the week.
• Work backwards from each carrier cut-off: how many hours of picking and packing must be done by then?
• Stagger start times, or add a short twilight shift, so heads follow the curve.
• Move indirect work (replenishment, putaway, housekeeping) into the quiet hours.

3. Cut walking with better slotting

In a manual pick operation, a large share of a picker's time is spent walking. If your fastest-moving products sit at the far end of the building, you pay for that walk on every order.

• Rank products by how often they're picked, not by sales value.
• Put the top movers closest to packing and at waist height.
• Re-check monthly, and before peak, because the top movers change.
• Keep look-alike products apart, so faster picking doesn't bring more errors.

4. Get new and agency starters to rate faster

A new starter who takes three weeks to reach rate costs you three weeks of lost output, and agency temps often start without any proper induction at all.

• Write a one-page standard work sheet for each role, with photos.
• Give every starter a short induction and a buddy for their first shifts.
• Track each starter's rate by day, so you can see who needs help early.

5. Measure productivity every day

You can't manage what you only see at month end. Track units per hour for each process (pick, pack, goods in, putaway) and review it at the start of every shift. A whiteboard works. A simple app on software you already pay for, such as Microsoft 365 or Google Workspace, works better and costs almost nothing.

6. Stop paying twice for errors

Every mis-pick is paid for twice: once to pick it wrong, and again to fix it, reship it and handle the return. For a 3PL there may be client penalties on top. A ten-minute daily review of yesterday's errors, by cause, is one of the cheapest fixes there is. Our guide to reducing mis-picks covers this in detail.

7. Keep the people you've trained

Every leaver takes their training with them, and the replacement costs recruitment time, induction and weeks below rate. Regular 1-2-1s for every level, operatives included, a fair way to share overtime, and fixing the small daily frustrations do more for retention than most pay rises.