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Accounting · head to head

Billit vs IRIS KashFlow

Billit logo

Billit

Accounting

Belgian invoicing and accounting software with Peppol e-invoicing

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 Billit has a free tier, so it costs nothing to try first.
  • Each has a real cost: Billit annual billing required to get approximately 15% discount (one free month included); 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 29 August 2026.

Where they differ

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

Attributes where Billit and IRIS KashFlow differ
AttributeBillitIRIS KashFlow
Starting priceFree£13.5/month
Free tierYesNo

Identical on both: pricing model (subscription), 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.

Billit

  • Invoice generation and document management for freelancers and small businessesnot IRIS KashFlow
  • E-invoicing and Peppol compliance for European businessesnot IRIS KashFlow
  • Recurring billing and payment reminder workflowsnot IRIS KashFlow

IRIS KashFlow

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

Where each one falls short

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

Billit

  • Annual billing required to get approximately 15% discount (one free month included)
  • Additional user seats cost €5 per user per month on top of plan price
  • Overage pricing per document decreases with tier, penalizing rapid growth within a tier

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

Billit

Free
  • Starter$7.5/month
    • Up to 25 documents per month
    • Peppol e-invoicing
    • Invoice customization
  • Growth$25/month
    • Up to 500 documents per month
    • All Starter features
    • Additional documents: €0.25 per document
  • Professional$250/month
    • Up to 1,000 documents per month
    • All Growth features
    • Additional documents: €0.15 per document
  • Enterprise$null/month
    • 1,000+ documents per month
    • Custom pricing

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 Billit if

  • You want to start without paying.
Billit review

Choose IRIS KashFlow if

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

IRIS KashFlow review

Questions people ask

Is Billit or IRIS KashFlow better?
Neither clearly leads. Billit 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, Billit or IRIS KashFlow?
Billit has a free tier; the other does not. Paid plans start at Free for Billit and £13.5/month for IRIS KashFlow.
Does Billit or IRIS KashFlow run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use Billit for free?
Yes. Billit has a free tier, so you can try it without paying. IRIS KashFlow starts at £13.5/month.
What is Billit best used for?
Billit is most often used for invoice generation and document management for freelancers and small businesses, e-invoicing and peppol compliance for european businesses, recurring billing and payment reminder workflows. Of those, invoice generation and document management for freelancers and small businesses and e-invoicing and peppol compliance for european businesses are not what IRIS KashFlow is typically brought in for.

Answered from the vendors’ own pages

Billit: What does Billit Starter plan include and how much does it cost?

Billit Starter is €7.50 per month (or €22.92 per month with annual billing, roughly 15% off) and supports up to 25 documents per month. All plans include Peppol e-invoicing, invoice customization, quotes, mobile app, bank integration, and payment reminders. Extra documents over the limit cost €0.50 each.

Source
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
Billit: How much does it cost to add team members to a Billit account?

The first user is included in your plan. Additional team members cost €5 per user per month. Bookkeepers and accountants can access the accountant portal for free.

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
Billit: What is the difference between Billit Growth and Professional plans?

Billit Growth is €25/month for up to 500 documents monthly (€0.25 per overage). Professional is €250/month for up to 1,000 documents monthly (€0.15 per overage). Both include all features; the only differences are document limit and overage rates.

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
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