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Accounting · head to head

IRIS KashFlow vs Stampli

IRIS KashFlow logo

IRIS KashFlow

Accounting

Online accounting software for UK sole traders and small businesses

From
£13.5/month
Rated
-
Full reviewWebsite
Stampli logo

Stampli

Accounting

AI-powered accounts payable automation

From
$29/month
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: 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; Stampli no transparent pricing published; quote-based model required
  • Prices and features above were last checked on 30 August 2026.

Where they differ

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

Attributes where IRIS KashFlow and Stampli differ
AttributeIRIS KashFlowStampli
Starting price£13.5/month$29/month
PlatformsWebWeb, Ios, Android
FoundedUnknown2014

Identical on both: pricing model (subscription), free tier (No), 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 IRIS KashFlow

Nothing recorded that Stampli does not also cover.

Only in Stampli

  • AI invoice processing
  • Approval workflows
  • Vendor management
  • Payment processing
  • Audit trails
  • NetSuite
  • Sage Intacct
  • QuickBooks

What people use each for

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

IRIS KashFlow

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

Stampli

  • Accounts payable automationnot IRIS KashFlow
  • Invoice processing and capturenot IRIS KashFlow
  • Vendor managementnot IRIS KashFlow
  • Expense management and procurementnot IRIS KashFlow

Where each one falls short

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

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

Stampli

  • No transparent pricing published; quote-based model required
  • Specific pricing for individual modules or add-ons not available on pricing page
  • Cost varies based on invoice volume, complexity, and customization needs

Pricing, plan by plan

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

Stampli

$29/month
  • Essential$undefined/month
    • Invoice processing
    • Basic approvals
    • Email notifications
  • Professional$undefined/month
    • AI-powered coding
    • Advanced workflows
    • ERP integrations
  • Enterprise$undefined/month
    • Custom workflows
    • API access
    • Dedicated support

Which should you pick?

Choose IRIS KashFlow if

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

IRIS KashFlow review

Choose Stampli if

  • You need ai invoice processing.
  • You work on Web, Ios, Android.
  • You also want approval workflows.
Stampli review

Questions people ask

Is IRIS KashFlow or Stampli better?
Neither clearly leads. IRIS KashFlow starts at £13.5/month and Stampli at $29/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, IRIS KashFlow or Stampli?
IRIS KashFlow starts at £13.5/month and Stampli at $29/month.
Does IRIS KashFlow or Stampli run on more platforms?
IRIS KashFlow runs on Web. Stampli runs on Web, Ios, Android.
What is IRIS KashFlow best used for?
IRIS KashFlow is most often used for business accounting, invoicing and billing, vat management. Of those, business accounting and invoicing and billing are not what Stampli is typically brought in for.
What can IRIS KashFlow do that Stampli cannot?
Stampli covers AI invoice processing, Approval workflows, Vendor management, Payment processing.

Answered from the vendors’ own pages

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
Stampli: What does Stampli cost?

Stampli does not publish fixed pricing. The company uses a custom quote-based model. Visitors are directed to 'Request a Quote' and meet with an AP expert to discuss pricing based on their specific invoice volume and requirements.

Source
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
Stampli: What is included in Stampli's standard offering?

Stampli's core accounts payable solution includes unlimited invoice capture, entities/locations, vendors, and PO matching; automated processing via Stampli Cognitive AI; 12 pre-built reports; interactive dashboards; a dedicated Customer Success Manager; and support with under 90-second response time.

Source
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
Stampli: How long does it take to implement Stampli?

Stampli uses a 'fulfillment-first' implementation approach and deploys in weeks versus competitors requiring months or longer.

Source
Stampli: What add-on modules are available with Stampli?

Optional modules include Procurement, Direct Pay functionality, credit card programs, advanced vendor management, and expense management. Pricing for add-ons requires requesting a custom quote.

Source
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