By the time the deduction sheet arrives, the outcome was decided at signing. The three dispute roots (spec drift, unpinned inspection timing, unclear transit boundaries), the governing-law and arbitration clauses in plain words, the three-step response to buyer chargebacks, and the near-free insurance of filing the evidence every shipment already produces.
Seeing "tax collected by platform" and crossing sales tax off the list is half right. Why states drafted marketplaces as collection agents, which channels count (Amazon yes, Shopify no, B2B resale neither), and the three obligations that stay yours: your own site's orders, thresholds that still count platform sales, and zero returns in registered states.
The slotting fee hurts once; the fine print hurts monthly. Chargebacks coupled to your shipping execution, MDF haircuts off revenue, RTV clauses that mail unsold goods back at your expense, discounts retailers simply take, and rebates that erase a year at the December settlement — the full checklist, the negotiation order, and why half the answer is operational.
"Quote me CIF" tests which costs your sheet stacks, not your vocabulary. The three-layer block structure from FOB through CIF to DDP, why the buffer thickens with every layer and the validity period shortens, the 15% non-stacking tariff checked dead before any DDP quote, and the two classic misquotes whose losses were signed into the contract the day the sheet went out.
Paying the tariff does not touch sales tax — two different taxes, and the second turns on nexus. How physical nexus follows your inventory into any state warehouse (Taiwan headquarters notwithstanding), how economic nexus triggers on thresholds since Wayfair, the two mercies of marketplace-facilitator laws and B2B resale certificates, and why logistics placement is tax placement.
Search results teach stock investors; you are an exporter collecting an invoice. Why US payers demand a tax form before paying anything (the 30% withholding they would otherwise owe), why a Taiwanese company files the W-8BEN-E rather than the W-8BEN, why the W-9 is never yours to file, and what skipping, botching or letting the form expire actually costs.
Export currency risk is not a prediction question — it is the structural gap between signing and settlement, and the thinner the margin, the sharper its teeth. What a forward contract locks and what it gives away, the natural-hedge inventory of dollar inflows against outflows that needs no financial product, and the quote-sheet clauses that form the last line of defense. Concept education only.
The PO says Net 30; the financing chain says three-plus months — materials, ocean transit, acceptance-triggered terms and wire days stacked, and stacking again with every monthly order. Why the trigger date matters more than the number, the four trades that make terms a bargaining chip, and the escalation ladder whose core rule is that new orders link to old invoices.
The buyer wired the full amount and you received less — nobody stole it; the payment traveled a toll road of correspondent banks. Why SWIFT carries messages while money moves in relays, how the OUR/SHA/BEN field decides who absorbs the tolls, realistic arrival windows and the snags that stretch them, and the three checks on an MT103 that settle any dispute.
The textbook answer is the letter of credit; the US reality is that small buyers almost never open one. Why the real battlefield is the T/T deposit ratio, where documents-against-payment still fits between half-trusting parties, and the house rule that decides when goods move: cash in hand must cover the unrecoverable costs before you book space.
