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Accounting · head to head

IRIS KashFlow vs sevdesk

IRIS KashFlow logo

IRIS KashFlow

Accounting

Online accounting software for UK sole traders and small businesses

From
£13.5/month
Rated
-
Full reviewWebsite
sevdesk logo

sevdesk

Accounting

German accounting and invoicing software for small businesses and freelancers

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only sevdesk has a free tier, so it costs nothing to try first.
  • 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; sevdesk the free Kostenlos plan caps invoices and e-invoices at just 3 per month, forcing an upgrade to the Rechnung plan for unlimited invoicing
  • Prices and features above were last checked on 29 August 2026.

Where they differ

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

Attributes where IRIS KashFlow and sevdesk differ
AttributeIRIS KashFlowsevdesk
Starting price£13.5/monthFree
Pricing modelsubscriptionfreemium
Free tierNoYes

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

What people use each for

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

IRIS KashFlow

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

sevdesk

  • Scanning receipts via mobile app and matching to transactionsnot IRIS KashFlow
  • Creating VAT advance returns and filing with tax authoritiesnot IRIS KashFlow
  • Generating XRechnung format invoices mandatory for B2B by 2025not IRIS KashFlow
  • Recording bank transactions automatically across 4000+ supported banksnot IRIS KashFlow
  • Managing unlimited invoices with automatic sales tax calculationsnot 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

sevdesk

  • The free Kostenlos plan caps invoices and e-invoices at just 3 per month, forcing an upgrade to the Rechnung plan for unlimited invoicing
  • API access and cost center tracking are reserved for the top Buchhaltung Pro tier at EUR 13.95 to EUR 34.90/month depending on commitment length, not included in the mid-tier Buchhaltung plan

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

sevdesk

Free
  • FreeFree
    • Permanently free with no credit card required
    • Up to 3 invoices/e-invoices monthly
    • Unlimited contact creation
  • Rechnung (Invoice Plan)$11.9/month
    • Regular: €11.90/month, discounted to €4.45/month on 24-month term
    • Unlimited invoices, offers, e-invoices, and payment reminders
  • Buchhaltung (Accounting Plan)$25.9/month
    • Recommended plan
    • Regular: €25.90/month, discounted to €9.95/month on 24-month term
    • Bookkeeping features, AI-powered receipt capture, tax filing
  • Buchhaltung Pro (Accounting Pro)$34.9/month
    • Regular: €34.90/month, discounted to €13.95/month on 24-month term
    • Cost center analysis, REST-API access, business financial analysis (BWA)

Which should you pick?

Choose IRIS KashFlow if

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

IRIS KashFlow review

Choose sevdesk if

  • You want to start without paying.
sevdesk review

Questions people ask

Is IRIS KashFlow or sevdesk better?
Neither clearly leads. IRIS KashFlow starts at £13.5/month and sevdesk at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, IRIS KashFlow or sevdesk?
sevdesk has a free tier; the other does not. Paid plans start at £13.5/month for IRIS KashFlow and Free for sevdesk.
Does IRIS KashFlow or sevdesk run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use sevdesk for free?
Yes. sevdesk has a free tier, so you can try it without paying. IRIS KashFlow starts at £13.5/month.
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 sevdesk is typically brought in for.

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
sevdesk: How much does sevdesk cost?

sevdesk offers a free plan and three paid tiers. Invoice Plan starts at €11.90/month (€4.45/month on 24-month), Accounting Plan at €25.90/month (€9.95/month on 24-month), and Accounting Pro at €34.90/month (€13.95/month on 24-month).

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
sevdesk: What is included in sevdesk's free plan?

The free plan allows creation of up to 3 invoices/e-invoices monthly, unlimited contact creation, and access to support materials. No credit card is required.

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
sevdesk: What add-ons are available for sevdesk?

sevdesk offers optional add-ons priced €3.90-€19.90/month including premium layouts, additional users, inventory management, and time tracking. Premium services such as setup consultations start at €24.90.

Source
sevdesk: Does sevdesk offer a promotional discount?

Yes, sevdesk advertises up to 50% discount through a time-limited Black Cyber Deal offering 60% off all plans. Additionally, all paid plans include 24-month term options with significant savings (up to 62% discount).

Source
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