Does Ordering More Items Lower Your Per-Item Delivery Cost?

Yes. The fixed costs of UK delivery, the delivery fee, service fee and small-order fee, get spread across a larger basket, so the percentage overhead falls sharply as the order grows. But "ordering more" is not the same as "ordering smarter".

The maths of per-item cost

A typical UK city delivery has roughly £4-£8 of fixed overhead (delivery + service + small-order if applicable). Spread across different basket sizes:

  • £10 basket: £6 of overhead = 60% on top of the food.
  • £20 basket: £6 of overhead = 30% on top.
  • £40 basket: £6 of overhead = 15% on top.
  • £80 basket: £6-£8 of overhead = 10% on top.

Doubling your order size roughly halves the percentage you pay in fees.

When this saves money

Consolidating an order saves money when:

  • You would have ordered twice anyway. One £40 order is dramatically cheaper than two £20 orders to the same address, saving £4-£8 in duplicated fees.
  • Group orders for households. Two flatmates each ordering £20 separately costs £50-£60. One £40 combined order costs £45-£50.
  • Office orders. £75 office lunches benefit from spreading overhead across multiple people.

When it loses money

Ordering more loses money when:

  • You would not have ordered the extra food. Adding £15 of food to "save" a £2 small-order fee is paying £15 for nothing, unless you actually want the food.
  • The extra items are high-margin app markups. Apps mark up drinks 30-50%; a £4 in-store Coke can become £6 on Uber Eats. Adding it to hit a threshold is expensive.
  • The extra items are minimum-spend traps. Some restaurants raise prices on small "topper" items knowing customers will use them to clear thresholds.

The honest rule

Consolidate when the extra food is food you wanted. Skip when the extra food is just a fee dodge.

Group order practical tips

For UK office or household group orders:

  • Use the platforms' built-in group order features (Uber Eats and Deliveroo both have them; Just Eat is weaker).
  • Set a deadline so people order before you check out.
  • Hit the highest applicable threshold for free delivery if the platform offers one.
  • Pay individually via the in-app split rather than reimbursing one person. Fewer conflicts later.

A £100 group order to a single address typically costs £105-£110 total. Split into 5 separate £20 orders to 5 addresses, the same food costs £125-£140.

Is it cheaper to order one big delivery or several small ones?

One big delivery, by a meaningful margin. Fixed fees (delivery, service, small-order) get spread across more food. Two £20 orders typically cost £50-£60 total; one £40 order costs £45-£50.

Should I add items just to skip the small-order fee?

Only if the items are ones you would actually eat. Adding a £2 side to skip a £1.99 fee is roughly break-even and gives you food. Adding £8 of stuff you do not want loses money.

How does the cost per item change with basket size?

The percentage overhead falls sharply as the basket grows. A £10 order pays roughly 60% in fees on top of the food; a £40 order pays roughly 15%; an £80 order pays roughly 10%.