International Bill Payment: Pay Global Vendors

Wire transfer vs local payment rails

A SWIFT wire transfer is the default international payment method most US businesses use, but it is rarely the best option. Wire transfers pass through multiple correspondent banks, each of which may deduct intermediary fees. A $500 payment to a UK vendor might arrive as $470 after bank charges. Run your own payment amount through our vendor payment cost calculator to see the real fee gap before picking a method.

Local payment rails are better when available: SEPA for European vendors (EUR transfers with no intermediary fees), BACS for UK vendors (GBP direct credit), EFT for Canadian vendors (CAD direct transfer). Platforms like Tipalti and Wise route payments through local rails in supported markets, the vendor receives the full amount.

Tool comparison by payment volume

Under 10 international payments/month: Wise (formerly TransferWise) offers competitive FX rates with full transparency before confirmation, and transfers arrive in 1-2 business days. Cost is 0.4-1.5% of transfer amount. No accounting sync, record manually. BILL international wires cost $19.99 per transfer with QuickBooks/Xero sync included.

10-50 payments/month: At this volume, accounting sync value exceeds per-transfer cost. BILL handles 130+ currencies with automatic QBO/Xero sync. See our BILL review.

50+ international payments/month: Tipalti's vendor self-onboarding portal, automated W-8BEN collection, and local payment rail routing create meaningful operational savings. Starting at ~$449/month. See our Tipalti review and how to pay contractors online for a complete picture.

Tax compliance for international vendor payments

For foreign individuals or companies providing services with US-source income, you may need to withhold 30% and remit to the IRS, unless a tax treaty applies or the vendor provides the correct W-8 form (W-8BEN for individuals, W-8BEN-E for entities).

You are responsible for collecting, validating, and retaining these forms. Failure to collect proper W-8 documentation can make you liable for the 30% withholding that should have been applied. W-8 forms expire every 3 years, so renewal tracking is also required at scale.

At low volumes (under 10 foreign vendors), collecting W-8 forms manually is manageable. At 50+ vendors, Tipalti automates the entire W-8 lifecycle, collection, validation, storage, and renewal reminders.

FX rate transparency

Banks and some payment platforms apply undisclosed FX margin on top of the mid-market rate. A $10,000 USD payment to a EUR vendor can cost $10,200+ once bank margins are included, with the vendor receiving less than expected.

Transparent platforms (Wise, Tipalti for most currencies) show the exact FX rate before you confirm. For high-value international payments, this transparency can represent hundreds to thousands of dollars in savings per year.

Country-by-country payment guide: UK, EU, Canada, Australia

United Kingdom: The cheapest way to pay a UK vendor is a BACS transfer in GBP, supported by both Tipalti and Wise. SWIFT GBP wires technically work but typically involve one or two intermediary banks that each shave a fee off the transfer - your vendor receives less than expected. To initiate a UK bank transfer, you need the vendor's Sort Code (6 digits) and Account Number (8 digits). Do not confuse these with the vendor's IBAN, which is a different format and used for SEPA, not BACS.

European Union: SEPA Credit Transfer is the standard for EUR payments across 36 countries. SEPA costs 0.35-0.5% via Wise or Tipalti, compared to 2-3% for an equivalent SWIFT wire. The required fields are IBAN (up to 34 characters, country-specific format) and BIC/SWIFT code (8-11 characters identifying the bank). For vendors in non-EUR EU countries like Poland (PLN) or Czech Republic (CZK), SEPA does not apply - treat those payments like any other international wire.

Canada: Canada uses EFT (Electronic Funds Transfer) as its domestic rail, which functions similarly to US ACH. Transfers settle in 1-2 business days in CAD. Canadian vendors need to provide three pieces of bank information: Transit Number (5 digits), Institution Number (3 digits), and Account Number (7-12 digits). Wise and Tipalti both support CAD EFT natively. Sending USD wire to a Canadian vendor forces them to convert at their bank's rate, which is almost always worse than converting yourself via Wise.

Australia: Australian bank transfers use BSB number (6-digit branch code) plus Account Number. BPAY is an Australian bill-payment network but it is not typically accessible to US businesses paying foreign vendors - standard bank transfer is the practical route. As a general rule before the first payment to any international vendor: confirm in writing which bank details and currency they want. A mismatched format (sending IBAN details to a Canadian bank, for example) will cause a return and can delay payment by 5-7 business days.

Currency risk: when to pay in USD vs local currency

Most US businesses default to paying international vendors in USD because it feels simpler - no FX conversion on your end. The practical effect is that you shift all currency risk to the vendor. They receive USD, convert locally at their bank's retail rate (often 2-4% worse than mid-market), and net less than their invoice value. Over time this quietly erodes vendor relationships, especially with contractors billing in GBP or EUR who see the gap on every payment.

Paying in local currency gives you control over the FX rate at the moment of payment. With Wise or Tipalti, you see the exact mid-market rate before you confirm, lock it, and your vendor receives the exact amount invoiced in their currency. The cost is real but transparent - Wise charges 0.4-0.8% on currency conversion. The risk is timing: if a transfer takes 2-3 days to settle, the rate you locked may differ slightly from the rate the vendor sees. Most platforms lock the rate at initiation, so this primarily matters for same-day obligations.

For high-value contracts at $50,000 or above, invoicing in USD is a reasonable strategy. At that dollar amount, a 1% FX swing equals $500 - material enough to warrant a conversation with the vendor about USD billing. For recurring smaller vendor payments - monthly retainers, per-invoice contractors, subscription-style services - paying in local currency via Wise (under 10 vendors) or Tipalti (20+ vendors) is typically the better path for vendor satisfaction and long-term retention.

A practical middle ground: ask vendors which currency they prefer during onboarding. Many international freelancers and small agencies have USD accounts specifically for working with US clients and will gladly accept USD. Others strongly prefer local currency. Knowing upfront prevents awkward mid-engagement payment changes.

Paying international contractors via W-8 compliance

Paying a foreign independent contractor without the right paperwork creates real IRS liability - the default withholding rate on US-source income paid to non-US persons is 30%, and it is your obligation as the payer to withhold and remit it. The compliance process is manageable for small numbers of contractors if you follow a clear sequence.

Step 1 - Before the first payment: Request a completed W-8BEN from individual contractors or a W-8BEN-E from foreign business entities. This form certifies the contractor's foreign status and, if applicable, claims a reduced withholding rate under a US tax treaty. The IRS maintains a full list of treaty countries at irs.gov - common ones include the UK (0% withholding on independent contractor income under the treaty), Canada (varies by income type), and most EU countries. Step 2 - Validate the form: Confirm the country of residence on the W-8 matches an actual treaty country if they are claiming reduced withholding. A contractor listing a non-treaty country (say, Egypt or Vietnam) defaults to 30% withholding regardless of what they write on the form.

Step 3 - Withhold and remit if required: If no treaty applies, withhold 30% of each payment classified as US-source income and remit it to the IRS quarterly via EFTPS. Step 4 - File Form 1042-S annually: This form (due March 15) reports the total amount paid to each foreign contractor and any withholding taken. One 1042-S per payee. Step 5 - Track W-8 expiration: W-8 forms expire every 3 years (or immediately upon a change in the contractor's circumstances). Set a calendar reminder at the 2.5-year mark to request a refreshed form.

For 1-5 international contractors, managing this manually in a spreadsheet is feasible. For 20 or more, Tipalti automates the entire workflow - it collects W-8s during vendor onboarding, validates treaty eligibility, calculates withholding per payment, and generates 1042-S files at year-end. The time savings at that scale typically justify Tipalti's platform fee on compliance alone.

FAQ: International bill payment

Can I use Venmo or Zelle for international vendors? No. Both Venmo and Zelle are US-only platforms - they require a US bank account and a US phone number on both sides of the transaction. There is no international send feature and no workaround. For a one-off small payment to a foreign individual, Wise is the closest equivalent that actually works across borders.

What is the cheapest way to pay a single $500 international invoice? Wise. A $500 payment via Wise typically costs $2-$4 in fees (0.4-0.8%) with the mid-market exchange rate applied. PayPal is technically available but charges 2.5-4.5% in currency conversion fees plus a fixed international fee, making it significantly more expensive. Tipalti's pricing structure is designed for volume - it is not economical for a single small payment.

How long does an international wire take? SWIFT wire: 3-5 business days in most corridors, though destinations with limited correspondent banking (parts of Southeast Asia, Africa, Latin America) can take up to 7 business days. Local rail transfers - SEPA for EUR, BACS for GBP, EFT for CAD - settle in 1-2 business days. Same-day international transfers are not available through any standard channel. If a vendor says they need funds by a specific date, add a 5-business-day buffer when sending via SWIFT.

Do I need to report international payments to the IRS? Payments to foreign contractors and service providers are generally reportable on Form 1042-S regardless of payment amount - there is no de minimis threshold equivalent to the $600 Form 1099 rule for US persons. Payments for goods (purchasing inventory from a foreign supplier, for example) are not subject to withholding, as withholding applies to income, not product purchases. The line between 'services' and 'goods' is not always obvious - software licenses, for instance, can be treated as royalties subject to withholding. Consult a CPA or international tax advisor if your vendor mix includes anything beyond straightforward labor or consulting.

For a full comparison of platforms across use cases, see our best bill payment software guide. Not every vendor takes a wire, some US-based suppliers still insist on a paper check. Our check payment software guide covers tools built for that side of vendor payments.