How to make $10k/mo with a Subscription Box
The Goal Seek panel below is pre-filled with your target. Pick which lever to move and we’ll show exactly what needs to change. The full calculator is right below it, adjust anything, watch the numbers update in real time.
Where your money goes
- Box contents37%$2,604
- Packaging8%$543
- Shipping18%$1,302
- Payment fees4%$249
- Acquisition18%$1,250
- Fixed costs16%$1,100
Profit over the first year
What would it take?
Set a target and pick which levers you’re willing to move. We’ll work out what each one needs to be.
What goes into Subscription Box costs
The unit economics of a subscription box are deceptively simple, the trap is that churn compounds. A box at $39/mo with 8% monthly churn looks fine on month one and visibly worse by month six. Every percentage point of churn you can knock out of the model is equivalent to a major price increase that customers won't push back on.
Three cost lines deserve scrutiny: contents (what's actually in the box), packaging (the box itself, filler, inserts, branding, usually higher than first-time founders expect), and shipping. Shipping is the single biggest difference between a profitable box and one that bleeds cash, especially if you're absorbing carrier costs to compete with free-shipping competitors. The calculator lets you charge the buyer all, some, or none of the shipping cost so you can find the price elasticity sweet spot.
CAC is the other dial that moves the math. New-school subscription boxes built on TikTok creators are seeing $15–35 CACs; Meta-ads-only boxes are paying $40–80. The calculator pairs CAC with new-signup volume so you can see when your acquisition spend is buying growth vs. when it's just churning through your runway.
Frequently asked
What's a normal monthly churn rate for an indie subscription box?
5–10% is the realistic range. Below 5% is great and usually means a strong niche fit and good onboarding. Above 12% is a warning sign, usually a product/value mismatch or a confusing pause/cancel UX. The calculator's default 8% reflects a typical new-box reality.
Should I offer free shipping?
Free shipping converts better but eats margin, especially with USPS rate hikes. A safer middle ground is to charge a flat $5–8 that covers about 80% of your actual shipping cost. The calculator's Shipping Charged to Buyer slider lets you A/B in your head.
How do annual plans actually help?
Annual plans reduce churn (the subscriber paid up front, has no monthly cancel temptation) and improve cash flow. The trade is a discount, usually 10–20% off the monthly rate. The calculator lets you set both the discount and the % of subscribers on annual to see the blended revenue impact.
What's CAC and where do I find mine?
Customer Acquisition Cost = total marketing spend / new subscribers acquired in that period. If you spent $1,000 on ads and got 40 new subscribers, your CAC is $25. Most indie boxes don't track this precisely. Use the calculator to figure out what your CAC needs to be for the model to work, then back into your ad spend ceiling.