Milly Software
01 / OVERVIEW

California battery fee compliance, automated.

Applies the California Battery Recycling Fee (1.5%, $15/unit cap) to products in your battery collection — only on CA-shipping orders. Itemized at checkout, disclaimer cites CA H&S Code § 25214.10.2.

# shopify app store · no code · live in a minute
spec
scopeCalifornia · H&S Code § 25214.10.2
fee1.5% per unit, $15 cap above $1000
gatingshipping address (CA only)
mappingShopify collection
installShopify App Store · Free · Shopify Plus only
02 / FEATURES

What it does, what it doesn't.

Narrow scope, deep integration. We don't try to be a platform — we solve one problem well, on Shopify.

Collection-drivenYou pick the Shopify collection that contains every product with a battery. No SKU mapping, no tags — your existing catalog structure drives it.
Itemized at checkoutFee renders as its own line item in the order summary, with a configurable disclaimer message. Goes through normal refund flow when an order is returned.
Ships-to-CA onlyCart Transform Function calculates the fee. UI extension at checkout reads the shipping address and only writes the trigger when the customer is shipping to California.
Editable disclaimerThe customer-facing message is fully editable. Defaults cite CA H&S Code § 25214.10.2; merchants can adjust wording or replace it entirely.
03 / SAMPLE

A live record from a production install.

Anonymized but real. This is what one row looks like flowing through the system.

productLithium Battery Pack 20K
ship_toLos Angeles, CA 90210
fee$0.75 (1.5% of $50)
statusitemized at checkout