How to calculate AOV
The formula is simple - total revenue divided by total orders. If you did $50,000 in revenue across 1,000 orders in a month, your AOV is $50. The tricky part is what counts as "an order" for a subscription business.
- For one-time-purchase Shopify stores, an order is a checkout transaction.
- For subscription businesses, you can measure AOV per cycle (each recurring shipment is one order) or per signup (the customer's first order, including any one-time add-ons).
- Most subscription dashboards default to per-cycle AOV, since that's the figure that multiplies into LTV.
Why AOV matters for subscription businesses
For one-time purchase stores, raising AOV is a primary growth lever - sell more per transaction. For subscriptions, AOV per cycle has compound impact: every dollar added to AOV multiplies across every future renewal. A $5 AOV increase on a customer who renews 10 times is $50 in additional LTV - for free, since you didn't spend any extra acquisition cost.
This is why subscription businesses obsess over the post-purchase upsell, build-a-box configuration, and add-on suggestions in the customer portal. The unit economics reward AOV growth more than acquisition growth.
How to increase subscription AOV
- Build-a-box / curated bundles. Let customers add multiple items to a single recurring delivery. The default cart size is usually 1; defaulting to 2–3 lifts AOV substantially.
- One-time add-ons in the customer portal. Let subscribers add a one-time item to their next shipment with a click. This is the highest-converting upsell channel in subscription commerce.
- Tiered plans. Offer good/better/best tiers. Most customers self-select to the middle tier, which usually carries higher margin than the entry tier.
- Subscribe-and-save discounts that scale with cart size. Bigger discount for bigger orders incentivizes the customer to add a second product.
- Free-shipping thresholds. "Add $10 to qualify for free shipping" is a classic AOV booster - and it works just as well for subscriptions as one-time orders.
What AOV doesn't tell you
AOV alone is a vanity metric without context. A high AOV achieved by raising prices on inelastic demand is great. A high AOV achieved by discounting everyone into buying more is breakeven. Always look at AOV alongside margin per order and retention rate - three metrics together tell the real story.