BILL vs Airwallex compared: Which platform is better for your business?

Key takeaways

• Global B2B payments are forecast to grow from roughly $98 trillion to $282 trillion over the next decade.¹

• When choosing between BILL and Airwallex, ask whether money crosses a border on its way in or out, because that single fact determines which platform fits.

• BILL handles domestic approval chains and purchase order matching well. Airwallex Business Accounts collect funds from 70+ countries, with local account details in 21 of them, and hold balances in 20+ currencies, allowing you to spend in the currency you earn.

Both BILL and Airwallex move money and automate associated paperwork, but ultimately they were built for different jobs. BILL is a workflow layer sitting on a US general ledger, and Airwallex is payment infrastructure that can hold the foreign currency you collect.

This guide compares BILL and Airwallex across pricing, payables, receivables, treasury, cards, and developer APIs.

BILL vs Airwallex at a glance

BILL overview

BILL digitizes the life of an invoice, from capture through payment approval, and its controls are the strongest part of the product. Purchase order matching, granular permissions, and multi-tier authorization routing are all standard, and the BILL Accountant Console lets an outside CPA firm manage payables across many client entities.

The cost model is per seat plus per transaction.² Where it reaches its limit is currency: BILL runs on domestic rails, holds no foreign currency balance, and routes cross-border payments through a US dollar account.

Airwallex overview

Airwallex built its own banking infrastructure based on the premise that the correspondent banking chain is the cost.. Behind the product sit 89 licenses and permits globally and local payment rails in 120+ countries, which makes it the only spend platform built on its own global financial infrastructure.

The benefit is that you spend in the currency you earn. Money from overseas customers arrives into local account details and stays in that currency, and Airwallex international transfers publish 0.5% above interbank for major currencies and 1.0% for the rest. Current tiers sit on the Airwallex pricing page.

BILL vs Airwallex pricing compared

Subscription and seat costs

Every person who reviews or approves a bill on BILL requires a paid seat. That means a 10-person finance team on Corporate pays $890 a month, or $10,680 a year, before a single payment executes. Airwallex publishes an Explore plan at $0 per user per month that includes up to 10 Spend users, with Grow at $12 per active Spend user, which attaches cost to activity instead of charging for everyone who has a login.

Domestic payment fees

BILL's domestic pricing is published and predictable, and it accumulates at volume. Airwallex clears domestic payments over local rails in each supported market, including US ACH, at no transfer fee on any plan, including the free Explore tier.

International transfer fees and FX margins

International transfer fees and FX margins are what decide most evaluations. BILL charges $19.99 for an international USD wire, and it advertises no wire fee for a payment in the supplier's own currency because the cost sits inside the exchange rate. Airwallex quotes the transfer fee and the FX margin separately, runs conversions against live interbank rates, and clears fee-free over local rails in 120+ countries.

Key feature differences

Accounts payable and invoice approvals

BILL excels at managing domestic approval chains and matching purchase orders.. An invoice gets parsed, matched to its purchase order, coded, and then routed by whatever rule you set, with an audit trail sitting behind every release. Airwallex parses bills and supports structured approvals too, and where it pulls ahead is execution: one batch run can pay 1,000 suppliers, each in their own currency.

Accounts receivable and global collection

BILL's receivables are domestic by design, meaning a foreign customer sends an international wire and usually meets inbound fees or conversion deductions on arrival. Airwallex bills in more than 130 currencies with payment links in the invoice and accepts over 160 local payment methods across 35+ acquiring markets, which allows an overseas buyer to pay the way they normally would at home.

Multi-currency accounts and treasury

BILL passes money through a US dollar account, so every international movement triggers a conversion. Airwallex holds instead, collecting funds from 70+ countries into balances held in 20+ currencies, with local account details in 21 countries, and Yield pays returns of 3.19% on Explore, 3.34% on Grow, and 3.46% on Accelerate on USD balances with no lock-up period.

Corporate cards and spend controls

BILL Spend & Expense costs nothing in software fees and handles budgets, virtual cards, merchant category rules, and mobile receipt capture, drawing on domestic credit lines. Airwallex Corporate Cards carry no foreign transaction fees on international card spend and pay up to 2% cash rebates on local USD spend, and the Expense Policy Agent assists review of receipts and policy across entities and languages.

Accounting sync and developer APIs

BILL reaches the ledgers you would expect, from QuickBooks Online through to Sage Intacct, but none of it runs automatically below the Team tier at $65 per user. Airwallex includes two-way Xero and QuickBooks Online sync on the free Explore plan, with NetSuite and Dynamics 365 Business Central on Grow at $12 per active Spend user. What platforms and marketplaces get on top of that is programmatic control, and the Airwallex API documentation covers opening accounts, issuing cards, and paying out.

Verdict: Is BILL or Airwallex better for your business?

If your business plans to accept or send currencies other than dollars, choose Airwallex. If your transactions will only be in dollars, BILL may be the right choice. Review the criteria below to determine whether Airwallex or BILL is right for you.

Choose BILL if:

• Your vendors, customers, and payments are all domestic and denominated in dollars.

• Approval complexity is your real problem, since multi-step chains and PO matching are BILL's strongest work.

• An outside accounting firm runs your payables through the BILL Accountant Console.

• You still need physical checks printed and mailed on your behalf.

Choose Airwallex if:

• You bill or pay in more than one currency, where holding what you earned is the largest cost lever available.

• You want the FX margin quoted rather than embedded, allowing a payment run to be modeled in advance.

• You operate multiple entities or markets and would rather not bank in each one.

• You need card issuing, payouts, and account creation available through an API.

Running both is also legitimate and increasingly common, with BILL keeping the domestic approval chain your auditors already signed off on and Airwallex handling collection and payout wherever another currency is involved.

Frequently asked questions about BILL vs Airwallex

Does BILL work with Airwallex?

Yes, BILL works with Airwallex. The two companies announced a partnership that embeds Airwallex's local clearing infrastructure into BILL, giving BILL customers faster international payouts in local currencies without leaving their existing workflow.³ Many teams also run the two side by side rather than through the integration.

Which countries can each platform send payments to?

Airwallex sends payments to over 200 countries, routing 94% of transactions over local rails rather than SWIFT, with local clearing in 120+ countries. BILL supports international vendor payments through wires and its partner rails, and the Airwallex integration extends its local payout reach across major trade corridors.

How long do international transfers take on each platform?

International transfers take one to three business days on BILL, or as little as the same day through its Local Transfer option, while Airwallex reports that more than 90% of transfers arrive the same day and many settle instantly. Both are faster than the one to five business days a traditional correspondent-bank wire takes, because they clear over local payment rails instead of the correspondent chain.

What documentation do you need to open an account on each platform?

Both platforms require standard corporate verification to open an account: business registration documents, a taxpayer identification number, proof of operating address, and government-issued photo ID for beneficial owners at or above 25% ownership. Higher expected payment volumes usually trigger a request for bank statements or additional financial documentation during review.

Is there a minimum balance or monthly volume requirement on Airwallex?

Airwallex does not set a minimum invoice or payment volume to hold an account, and balances can sit in foreign currencies without an inactivity charge. Check the current terms on the pricing page before assuming a given tier is unconditional because plan-level conditions do vary..

Can businesses incorporated outside the US use each platform?

Airwallex onboards businesses incorporated in a range of markets beyond the US, including the UK, the EU, Australia, Hong Kong, and Singapore. BILL is built for US-incorporated businesses and expects a US address, a US taxpayer identification number, and a US bank account, which rules out most foreign entities.

Can you get help migrating vendor and payment data between the two?

Yes, you can migrate vendor and payment data between the two. Vendor profiles, payment history, and chart-of-accounts data export as CSV from either platform, and because both sync with QuickBooks Online, Xero, and NetSuite, much of the historical record travels through the ledger rather than needing manual re-entry.

Sources

1. https://www.fortunebusinessinsights.com/b2b-payments-market-108853

2. https://www.bill/product/pricing

3. https://www.airwallex.com/global/newsroom/airwallex-to-provide-faster-international-payments-for-bill