Duty Sharing and Supplier Renegotiation
The one commercial lever on the list rather than a customs one, and the fastest to pull. Move part of the increase back up the supply chain.
Best for: Buyers with volume leverage and a supplier who wants to keep it
How it works
The order the work actually runs in.
- 1
Quantify the increase per unit before you open the conversation, so the discussion is about a number rather than a feeling.
- 2
Ask for a split rather than full absorption. A supplier facing the loss of the account will usually take part of it.
- 3
Check the Incoterm, because moving between terms changes who carries what and what ends up in the dutiable value.
- 4
Audit what is actually in the dutiable value. Assists, tooling amortization, royalties, and freight handled incorrectly all inflate it.
- 5
Rework packaging and shipping density where the duty base or the freight cost follows volume.
A worked example
What the strategy looks like once you put numbers on it.
A split, an Incoterm correction, and an assist that should never have been dutiable
A mid-size brand facing a new 25 percent layer on a $3.2M line opened a renegotiation instead of moving the volume.
A new 25 percent layer landed on a $3.2M line, roughly $800k a year. The brand's first instinct was to move the volume, which would have taken nine months and a fresh tooling spend.
The factory was shown the number and the alternative, and agreed to absorb 40 percent of the increase to keep the account. Separately, an entry audit found tooling amortization being added to the dutiable value that did not belong there, and freight handled under the wrong Incoterm.
About $412k a year came off, roughly $320k from the split and the rest from correcting the dutiable value. More usefully, it bought the time to qualify a second source properly instead of in a panic.
Figures are illustrative math on a representative volume, not a specific client engagement. Your own numbers depend on your product, your codes, and current policy.
Before you commit
What this needs from you, and where it goes wrong.
What it takes
- The per-unit number, calculated before the conversation starts
- A credible alternative, because leverage comes from being able to leave
- An entry audit, since dutiable value errors are common and free to fix
- Someone who can read Incoterms and understands what each one actually shifts
Watch-outs
- A split is a bridge, not a solution. Suppliers take it back when the pressure eases.
- Never restructure an invoice to hide value. Under-declaration is fraud, not a strategy.
- Changing Incoterms changes risk and insurance, not just cost. Read what you are agreeing to.
Would this one work for your product?
Send us your HTS codes and volumes. We will tell you whether this strategy applies to you, what it is worth, and what it takes to put in place.