SELF-FULFILLMENT
$15.00 / box
$2,400.00 monthly total
COMPARISON
3PL vs Self-Fulfillment Calculator
Find the exact subscriber count where outsourcing to a 3PL becomes cheaper than packing boxes yourself.
How they compare
| Factor | Self-Fulfillment | 3PL |
|---|---|---|
| Cost per box (low volume) | $7-$12 | $10-$15 |
| Cost per box (500+ subs) | $10-$14 | $4-$8 |
| Setup cost | None | $275-$500 onboarding |
| Monthly minimum | None | $275-$500 |
| Packing time per month (300 subs) | 60 hours | 0 hours |
| Shipping rates | Retail rates | Volume discounted |
| Kitting capability | Manual | Professional |
| Scales beyond 500 subs | Difficult | Yes |
Find your break-even point
Enter your real costs and see exactly when a 3PL becomes the cheaper option.
YOUR SELF-FULFILLMENT COSTS
YOUR 3PL COSTS
YOUR VOLUME
3PL
$9.30 / box
$1,595.00 monthly total
VERDICT
3PL saves you $805.00 per month at your current volume.
You passed break-even at 9 subscribers.
Switching would free up 30.0 hours per month.
BREAK-EVEN SUBSCRIBER COUNT
9
At this subscriber count, 3PL and self-fulfillment cost the same.
Cost comparison at different volumes
| Subscribers | Self-Fulfillment | 3PL | Cheaper Option |
|---|---|---|---|
| 50 | $900.00 | $665.00 | 3PL |
| 100 | $1,650.00 | $1,130.00 | 3PL |
| 200 | $3,150.00 | $2,060.00 | 3PL |
| 300 | $4,650.00 | $2,990.00 | 3PL |
| 500 | $7,650.00 | $4,850.00 | 3PL |
| 750 | $11,400.00 | $7,175.00 | 3PL |
| 1000 | $15,150.00 | $9,500.00 | 3PL |
| 1500 | $22,650.00 | $14,150.00 | 3PL |
The cost most founders miss: their own time.
At 12 minutes per box and 150 subscribers, you spend 30.0 hours per month packing. At your hourly rate of $25.00, that is $750.00/month in labor - often more than a 3PL would charge.
When to make the switch
Most subscription box businesses start with self-fulfillment because it requires no minimum commitment and keeps fixed costs low. This makes sense up to a point.
At under 200 subscribers per month, self-fulfillment is almost always the right choice. The operational simplicity is worth it.
Between 200 and 400 subscribers the calculation starts to shift. At 12 minutes per box and $25/hour, 400 subscribers requires 80 hours per month of packing labor - two full working weeks doing nothing but packing boxes.
Above 500 subscribers the fully loaded cost of self-fulfillment including your labor typically exceeds what a subscription-specialist 3PL charges for the same output.
What to look for in a subscription box 3PL
Not all 3PLs handle subscription boxes well. Most warehouse operations are built for single-SKU e-commerce - pulling one product and shipping it. Subscription boxes require kitting: assembling multiple products into one box on a tight monthly schedule.
- Explicit subscription box and kitting experience
- No excessive monthly minimums if you are early stage
- Integration with your platform (Cratejoy, Subbly, Shopify, Recharge)
- Transparent per-box pricing with no hidden fees
- Batch fulfillment support for monthly ship dates
3PL options by stage
| Stage | Best Option | Why |
|---|---|---|
| Under 200 subs | Self-fulfillment | No minimums, learn your product |
| 200-500 subs | Evaluate 3PL | Run the calculator above |
| 500-2000 subs | ShipMonk or ShipBob | Kitting + volume discounts |
| 2000+ subs | Full 3PL contract | Negotiate annual rates |