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Accounting · head to head

Airwallex vs IRIS KashFlow

Airwallex logo

Airwallex

Accounting

Multi currency business accounts, international payments and card issuing from a licensed payments firm rather than a bank

From
Free
Rated
-
Full reviewWebsite
IRIS KashFlow logo

IRIS KashFlow

Accounting

Online accounting software for UK sole traders and small businesses

From
£13.5/month
Rated
-
Full reviewWebsite

The short version

  • Only Airwallex has a free tier, so it costs nothing to try first.
  • Each has a real cost: Airwallex airwallex is a licensed payments firm rather than a bank, so balances sit in safeguarding accounts at partner banks and are not covered by deposit guarantee schemes, which means a treasury policy that requires insured deposits cannot hold operating cash there.; IRIS KashFlow advertised monthly prices of £1.35 (Starter) and £2.75 (Business) are a 90% promotional discount off the standard £13.50 and £27.50 rates, and the promotion is described as lasting 6 months before reverting
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Airwallex and IRIS KashFlow actually diverge.

Attributes where Airwallex and IRIS KashFlow differ
AttributeAirwallexIRIS KashFlow
Starting priceFree£13.5/month
Pricing modelfreemiumsubscription
Free tierYesNo

Identical on both: platforms (Web), user rating (Not yet rated), category (Accounting).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Airwallex

  • Multi currency balances
  • Local receiving accounts
  • Foreign exchange conversion
  • International payouts
  • Card issuing
  • Expense management
  • Bill pay
  • Payments gateway

Only in IRIS KashFlow

Nothing recorded that Airwallex does not also cover.

What people use each for

The jobs each tool is most often brought in to do.

Airwallex

  • An exporter invoicing customers in United States dollars and euros who wants to be paid into local details rather than receive wires with correspondent deductionsnot IRIS KashFlow
  • An agency or software company paying contractors across several countries every month and losing money on bank foreign exchange spreadsnot IRIS KashFlow
  • An e-commerce seller collecting on multiple marketplaces in different currencies who wants to hold rather than convert on every settlementnot IRIS KashFlow
  • A startup that needs virtual cards with per subscription limits and cannot get a workable card programme from its local banknot IRIS KashFlow

IRIS KashFlow

  • business accountingnot Airwallex
  • invoicing and billingnot Airwallex
  • VAT managementnot Airwallex

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Airwallex

  • Airwallex is a licensed payments firm rather than a bank, so balances sit in safeguarding accounts at partner banks and are not covered by deposit guarantee schemes, which means a treasury policy that requires insured deposits cannot hold operating cash there.
  • Available currencies, local account details, card programmes and product features differ by the entity you contract with, so a feature demonstrated to a customer in Australia or Singapore may simply not exist for the same company registered in another country.
  • Onboarding is subject to compliance review and whole categories of business are declined or later offboarded, and because the account may hold operating cash, a compliance freeze during a review is a business interruption rather than an inconvenience.
  • Foreign exchange is quoted as interbank plus a markup, which is cheaper than a high street bank but is still a spread that widens on less liquid pairs and on smaller amounts, so the saving assumed in the business case should be checked against the pairs you actually trade.
  • Support is largely ticket and chat based with account management reserved for larger customers, so when a payment is stuck the resolution path is a queue rather than a named person, which is a poor fit for time critical settlement.

IRIS KashFlow

  • Advertised monthly prices of £1.35 (Starter) and £2.75 (Business) are a 90% promotional discount off the standard £13.50 and £27.50 rates, and the promotion is described as lasting 6 months before reverting
  • Listed prices are in GBP plus VAT, and the platform's plans are built around UK VAT filing rather than other tax regimes
  • Annual pricing is quoted at RRP £162/year (Starter) and £291.50/year (Business) before the same promotional reduction

Pricing, plan by plan

Airwallex

Free

No published plan breakdown. See the Airwallex review.

IRIS KashFlow

£13.5/month
  • Starter Monthly$13.5/month
    • 10 invoices
    • up to 25 bank transactions
    • single user access
  • Business Monthly$27.5/month
    • unlimited invoices
    • unlimited bank transactions
    • multi-user access
  • Starter Annual$162/year
    • 10 invoices
    • up to 25 bank transactions
    • single user access
  • Business Annual$291.5/year
    • unlimited invoices
    • unlimited bank transactions
    • multi-user access

Which should you pick?

Choose Airwallex if

  • You need multi currency balances.
  • You want to start without paying.
  • You also want local receiving accounts.
Airwallex review

Choose IRIS KashFlow if

Nothing in the data separates IRIS KashFlow from Airwallex on the points above - pick on price and on how each one feels to use.

IRIS KashFlow review

Questions people ask

Is Airwallex or IRIS KashFlow better?
Neither clearly leads. Airwallex starts at Free and IRIS KashFlow at £13.5/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Airwallex or IRIS KashFlow?
Airwallex has a free tier; the other does not. Paid plans start at Free for Airwallex and £13.5/month for IRIS KashFlow.
Does Airwallex or IRIS KashFlow run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use Airwallex for free?
Yes. Airwallex has a free tier, so you can try it without paying. IRIS KashFlow starts at £13.5/month.
What is Airwallex best used for?
Airwallex is most often used for an exporter invoicing customers in united states dollars and euros who wants to be paid into local details rather than receive wires with correspondent deductions, an agency or software company paying contractors across several countries every month and losing money on bank foreign exchange spreads, an e-commerce seller collecting on multiple marketplaces in different currencies who wants to hold rather than convert on every settlement, a startup that needs virtual cards with per subscription limits and cannot get a workable card programme from its local bank. Of those, an exporter invoicing customers in united states dollars and euros who wants to be paid into local details rather than receive wires with correspondent deductions and an agency or software company paying contractors across several countries every month and losing money on bank foreign exchange spreads are not what IRIS KashFlow is typically brought in for.
What can Airwallex do that IRIS KashFlow cannot?
Airwallex covers Multi currency balances, Local receiving accounts, Foreign exchange conversion, International payouts.

Answered from the vendors’ own pages

Airwallex: Is Airwallex a bank?

No. It holds payment institution, electronic money or equivalent licences in the markets it serves. Funds are safeguarded at partner banks rather than being deposits, and deposit insurance schemes do not apply.

IRIS KashFlow: What are IRIS KashFlow's core features across all plans?

All IRIS KashFlow plans include unlimited quotes, online VAT submission, mobile app access, 50+ reports, bank feeds, receipt capture, multi-currency support, and payroll for up to 5 employees.

Source
Airwallex: Can it replace my business bank account?

For many operating flows it can, but consider what you lose: no deposit protection, no lending relationship, no cash or cheque handling, and some counterparties and government bodies still expect a conventional bank account. Most users run it alongside a bank rather than instead of one.

IRIS KashFlow: Are there promotional discounts for new IRIS KashFlow customers?

Yes, new customers receive a 90% discount for 6 months on both Starter and Business monthly plans.

Source
Airwallex: Which countries can open an account?

It serves entities registered in a defined list of markets across Asia Pacific, Europe, the United Kingdom, the Middle East and North America, and the list changes. Check for your specific country of incorporation, because the answer determines both eligibility and feature set.

IRIS KashFlow: Can multiple users access IRIS KashFlow on the Starter plan?

No, the Starter plan is limited to single-user access only. Multi-user access requires the Business plan.

Source
Airwallex: Does it connect to my accounting software?

It integrates with the mainstream cloud ledgers so transactions feed through rather than being imported by hand. Confirm the integration covers all the currencies you hold, since multi currency handling in the ledger is a separate question.

Airwallex: How does the foreign exchange rate compare with a bank?

Materially better than a typical business bank's retail rate on major pairs, because it is quoted as interbank plus a stated markup. The gap narrows on thin currency pairs and small amounts, so test with your real volumes.

Airwallex: Are the cards accepted everywhere?

They are issued on the major networks and behave like ordinary company cards for most spend. Some merchants, particularly for deposits and car hire, treat prepaid style issuance differently, so do not assume parity with a bank credit card.

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