Declared value and insurance, before the tape goes on
Two fields at submit decide what a lost box is worth on paper. This page keeps their rules straight and runs the arithmetic for you.
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Two numbers with two different jobs
Submitting a parcel asks for a declared value, and adding CSSecure asks for an insured amount. They look like the same number and are not. The declared value goes onto the customs form that CSSBuy files on your behalf (help 29, read 2026-10-10); the insured amount prices the policy and anchors the claim.
Keeping them straight matters most on a merged box, because both are written once for the whole parcel, after nine separate orders stopped being separate.
What the declaration field commits you to
The live checkout text reads: "By declaring the package value, the customer is deemed to agree to CSSBUY's refund and insurance policy." (language key, read 2026-10-10). The same text closes the exits: "In the event of false or manipulated declarations, the package will not be covered by insurance. CSSBUY reserves the final decision-making authority. No appeals will be accepted."
Two more locks sit next to it. Recipient details cannot be changed once the parcel leaves the warehouse, and the declaration form at submit is the only one customs will see. This page quotes the rules; it will never coach a value, because the policy above voids coverage for a manipulated one and leaves no appeal.
The 3 percent line and the ceilings above it
CSSecure prices simply: premium equals the insured amount times 3 percent, excluding Brazil, and the maximum compensation per claim is RMB 10,000 (help 118, read 2026-10-10). Brazil runs on pre-application instead of the formula.
Transportation delay over 60 days pays 20 percent of the shipping fee, again excluding Brazil (help 118, read 2026-10-10). That is compensation on the freight, not on the goods, so it never belongs in the claim arithmetic for the contents.
RMB 10,000 is a per-claim maximum, not a quote of what a claim pays. No approval rate is published, and this site does not invent one.
Buy Yourself runs on different insurance
Forwarding orders, called Buy Yourself, insure against the declared value: with proof of value such as an invoice, cover reaches up to twice the declared value, and the premium itself is capped at RMB 800 (help 118 and help 536, read 2026-10-10).
Both of those terms belong to self-purchased orders only. An agent-purchased Buy For Me box gets neither the doubling nor the RMB 800 cap, and this distinction is exactly where a merged box of mixed origin gets its paperwork wrong.
The forwarding form is also where the warehouse add-ons live; the archived 2026-06-29 form priced extra photos at 1.5 CNY and measuring at 4 CNY, operator example values.
The fallback when nothing was insured
Skip CSSecure and the plan still names a number: compensation is capped at one third of the item's value, with an upper limit of RMB 1,000 (help 118, read 2026-10-10).
On one item that reads like a discount. On a merged box it reads like a trapdoor, because the cap applies to the claim, and a merged box is one claim. Nine items, one pool of at most RMB 1,000, split by whatever the adjuster decides, with the operator holding final say.
Worked parcel example
The claim-ceiling board
*The 3 percent premium excludes Brazil (help 118, read 2026-10-10). The uninsured pool applies once to the whole parcel, not once per seller: nine items worth 3600 CNY share a single ceiling of 1000 CNY. That division is what merging does to a haul, and it is the number to look at before taping the box shut.
Compensation also has a door-by-door path: lost packages need the carrier's official loss confirmation, missing and damaged items need a complete unboxing video and a report within 3 days (help 118, read 2026-10-10). The worksheet runs these numbers on your own box.
Running the worksheet on your own box
The worksheet below applies every rule on this page to one box: premium at 3 percent excluding Brazil, the RMB 800 Buy Yourself premium cap, the RMB 10,000 per-claim maximum, the uninsured one-third pool capped at RMB 1,000, and the 15 kg and 10 kg weight edges.
How to use the tool, in one pass: set the order type, enter the contents value and insured amount separately; forwarding also needs the declared value, and read the output rows top to bottom. Use it before submit, not after: it exists to show which number is doing the work while you can still change the box.
Declared-value and claim-ceiling worksheet. Enter what the box holds; the worksheet runs the operator's own formulas (help 118 and help 536, read 2026-10-10) and prints every ceiling that applies. It quotes no shipping price.
The worksheet never suggests a value to declare. A false or manipulated declaration voids coverage outright, and the operator keeps final say with no appeal (checkout language keys, read 2026-10-10). RMB 10,000 is the per-claim maximum, not a promised payout; no approval rate is published anywhere, so none is shown here.