In-House Fulfillment vs a 3PL: Cost Comparison

Cost	In-house	3PL
Labor	Your staff's hours × loaded wage	Pick and pack fee ($3.20 per B2C order survey average)
Space	Rent or owned space, fixed	Storage fees ($20.17 per pallet a month survey average), variable
Software	Shipping and inventory software	Usually included; some charge platform fees
Shipping	Your own carrier rates	3PL's negotiated rates, passed through or marked up
Minimums	None	$517 a month survey average
Your time	Hiring, training, peak staffing	Account management and invoice checking

Survey figures are from The Fulfillment Advisor's 2025 report on 600+ warehouses. In-house has lower variable cost and higher fixed cost. A 3PL is the reverse. The crossover depends on how many orders you spread the fixed costs over.

Formula:

in-house cost per order = (minutes per order ÷ 60 × loaded hourly wage) + packaging + (monthly space + software + equipment) ÷ monthly orders + average label cost

Labor input. The BLS reports a May 2025 median annual wage of $36,280 for hand packers and packagers (about $17.44 an hour at 2,080 hours) and $18.38 an hour for hand laborers and material movers overall. Add payroll taxes and benefits, shown below as a placeholder 25%.

Illustrative example: 1,000 orders a month. Everything except the BLS wage is a placeholder.

Line	Calculation	Monthly
Labor	1,000 orders × 6 min ÷ 60 = 100 hours × $17.44 × 1.25	$2,180
Packaging	1,000 × $0.40	$400
Space	Placeholder rent for a small unit	$1,500
Software and equipment	Placeholder	$150
Fulfillment subtotal		$4,230 ($4.23 per order)

In this example in-house fulfillment costs about the same as the $4.30 per order 3PL example in how much a 3PL costs. Labor is only half the cost; space is most of the rest.

Using the placeholder fixed costs above ($1,650 a month for space, software and equipment) and a variable in-house cost of $2.58 per order (labor plus packaging):

Monthly orders	In-house per order	3PL per order (survey rates, $517 minimum)
200	$2.58 + $8.25 = $10.83	About $4.30
500	$2.58 + $3.30 = $5.88	About $4.30
1,000	$2.58 + $1.65 = $4.23	About $4.30
3,000	$2.58 + $0.55 = $3.13	About $4.30, less with volume tiers

The 3PL column uses the $4.30 per order from the worked example on the 3PL cost page. At 200 orders, $4.30 × 200 = $860, which is above the $517 survey minimum, so the minimum doesn't bind. The pattern: space makes in-house expensive at low volume. If you already have free or cheap space, such as a garage or a shared unit, in-house wins much earlier.

Because the label costs more than the labor. For 2026, FedEx's residential charge alone is $6.45 per package on Ground and Home Delivery, and ICC Logistics lists UPS's Ground residential surcharge at $6.50. That's before the base rate and fuel (FedEx Ground: 29.75% for Sept. 28–Oct. 4, 2026).

A brand shipping a few hundred parcels a month usually pays close to list or retail. A 3PL shipping for many brands negotiates volume discounts. How much of that reaches you depends on whether the 3PL passes shipping through at cost, marks it up, or bundles it in an all-in rate (Simpl from $7 per order, Fulfyld from $7.74 at 501–1,000 orders a month, both including postage). USPS Ground Advantage, which has no residential or fuel surcharge, narrows the gap for light parcels whoever ships them.

The math is the same, but the margin is thinner. Illustrative example: a $10 average order with fulfillment at $4.30 per order spends 43% of revenue on fulfillment before shipping. At a $50 average order it's 8.6%.

Options for low-AOV brands:

• Raise units per order with bundles, because extra units cost much less to pick than new orders.
• Use a 3PL with no minimum or an all-in rate that includes postage.
• Keep fulfilling in-house until volume covers a 3PL's minimum comfortably.

In-house: peak-season temp labor, mis-ship and reship cost, shrink, insurance, equipment replacement, and the owner's hours.

3PL: receiving fees ($45.67 per hour survey average), long-term storage (48.6% of surveyed warehouses charge it), setup ($333 average), account management ($102.88 average where charged), inbound freight to the 3PL, and the cost of switching later.