A studio that builds at CES Las Vegas, EuroShop Düsseldorf, and Big 5 Dubai in the same calendar year is invoicing in USD, EUR, and AED — frequently within the same project, when the client headquarters and the show venue sit in different currency zones. The mechanics are not optional once cross-border work crosses 20% of revenue, and getting them wrong loses real margin.
After building Exphora's multi-currency invoicing module against feedback from booth builders running the EU/US/ME circuit, here is the field guide.
1. FX exposure: lock at signature or pass through?
A US studio quoting a German exhibitor in EUR for a Las Vegas build has currency exposure between proposal signature and invoice payment — typically 90–120 days. Over that window EUR/USD moves 2–6% in a normal market and up to 12% in a stressful one. Two approaches:
- Lock at signature — quote a fixed price in the client's currency, take the FX risk yourself, hedge if the deal is large enough to justify the cost. Cleaner for the client, riskier for the studio.
- Pass through — quote the work in the studio's home currency with a note that the EUR equivalent will be calculated at invoice date. Cleaner for the studio, harder to negotiate with procurement teams that need a fixed price for budget approval.
Most enterprise clients require lock-at-signature for budget reasons. Plan accordingly: a 4% FX cushion built into the markup is usually sufficient for stable-currency pairs (USD/EUR/GBP); 8% for emerging-market pairs (USD/TRY, USD/INR).
2. Tax registration thresholds
A non-EU studio supplying a service in Germany triggers German VAT registration if the value exceeds €17,500 in 12 months (the small-supplier threshold) — and the threshold is now €0 for many electronic services under VAT MOSS. Booth construction is technically a "service relating to immovable property" which is taxed where the property (the venue) is located, not where the studio is based.
Practically: a US studio building a stand at Hannover Messe will need German VAT registration through a fiscal representative, charge German VAT (currently 19%) on the invoice, and remit it to the Bundeszentralamt für Steuern. The same applies in mirror-image for an EU studio building at CES Las Vegas — but in the US, sales tax depends on the state and the booth's nature (services vs tangible goods), and many states exempt construction services.
Get a tax adviser local to the venue's country before the first cross-border project. The cost ($1,500–$3,500) is dwarfed by the cost of getting registration wrong.
3. Pro forma vs commercial invoicing
Cross-border freight (booth shipping into a customs zone) requires a commercial invoice attached to the cargo. The commercial invoice must declare HS codes, country of origin per material, and a CIF or DDP value. Many studios make the mistake of using the client-facing proposal value on the commercial invoice; this triggers customs duty on items that are temporarily imported (and re-exported after the show), which would otherwise be exempt under ATA Carnet.
Best practice: ATA Carnet for all temporary imports (booth structure, AV equipment, demo product). The Carnet is a $300–$800 document that exempts ~$15,000–$50,000 of duty per project. Run it through a customs broker — booth-builder accountants are usually unfamiliar with Carnet and will not flag the saving.
4. Currency-specific payment rails
- USD — domestic ACH (1–2 day, near-zero cost) or wire transfer ($25–35 fee). Stripe / Square for cards (2.9%+30¢).
- EUR — SEPA transfer (1 day, near-zero cost). Stripe charges 1.4%+25¢ for European cards.
- GBP — Faster Payments (instant, near-zero cost domestically), SWIFT for international.
- AED / SAR — SWIFT only for foreign senders; significant lag (3–5 days) and fees ($30–60 each direction).
- TRY — banking sanctions and FX controls require careful counterparty due diligence; Wise / Revolut Business often faster than legacy bank wire.
Build the payment rail into the proposal milestone schedule. A 30% deposit invoice in EUR via SEPA settles in 1–2 days; the same invoice via SWIFT can take 5 working days. That gap matters when fabrication starts on a tight timeline.
5. Operational reality in a CRM
Every project record needs three currencies attached: the client's billing currency, the venue's tax currency, and the studio's reporting currency. Most generic CRMs handle one currency per record. Booth-builder operations need all three because the client is invoiced in their currency, tax is calculated in the venue currency, and the project P&L lives in the home currency.
Exphora's invoicing module models this directly: the deal carries multiple currency contexts, the invoice template generates the right tax line for the venue jurisdiction, and the project P&L reports in home currency with FX gain/loss tracked per project. That last line is what tells leadership whether cross-border work is genuinely profitable or just gross-margin theatre.