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Accounting · head to head

ADP vs IRIS KashFlow

ADP logo

ADP

Accounting

Always Designing for People

From
$29/month
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

  • Each has a real cost: ADP no pricing is published; every quote is custom and driven by employee count and which services are taken; 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 ADP and IRIS KashFlow actually diverge.

Attributes where ADP and IRIS KashFlow differ
AttributeADPIRIS KashFlow
Starting price$29/month£13.5/month
PlatformsWeb, Ios, AndroidWeb
Founded1949Unknown

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 ADP

  • Payroll
  • Tax services
  • HR management
  • Time & attendance
  • Benefits administration
  • QuickBooks
  • Sage
  • Oracle

Only in IRIS KashFlow

Nothing recorded that ADP does not also cover.

What people use each for

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

ADP

  • Payroll processing and tax filingnot IRIS KashFlow
  • HR administration and employee recordsnot IRIS KashFlow
  • Time and attendance trackingnot IRIS KashFlow
  • Benefits administrationnot IRIS KashFlow
  • Talent management on the mid-market and enterprise productsnot IRIS KashFlow

IRIS KashFlow

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

Where each one falls short

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

ADP

  • No pricing is published; every quote is custom and driven by employee count and which services are taken
  • Split into three separate products by company size, RUN for 1 to 49 employees, Workforce Now for 50 and above, and Lyric HCM for enterprise, so growing across a threshold means changing product rather than plan

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

ADP

$29/month
  • Essential$79/month
    • Payroll
    • Tax filing
    • Direct deposit
  • Enhanced$139/month
    • HR tools
    • Background checks
    • Job posting

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 ADP if

  • You need payroll.
  • You work on Web, Ios, Android.
  • You also want tax services.
ADP review

Choose IRIS KashFlow if

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

IRIS KashFlow review

Questions people ask

Is ADP or IRIS KashFlow better?
Neither clearly leads. ADP starts at $29/month 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, ADP or IRIS KashFlow?
ADP starts at $29/month and IRIS KashFlow at £13.5/month.
Does ADP or IRIS KashFlow run on more platforms?
ADP runs on Web, Ios, Android. IRIS KashFlow runs on Web.
What is ADP best used for?
ADP is most often used for payroll processing and tax filing, hr administration and employee records, time and attendance tracking, benefits administration. Of those, payroll processing and tax filing and hr administration and employee records are not what IRIS KashFlow is typically brought in for.
What can ADP do that IRIS KashFlow cannot?
ADP covers Payroll, Tax services, HR management, Time & attendance.

Answered from the vendors’ own pages

ADP: How is ADP pricing organized?

ADP organizes pricing by business size: Small Business (1-49 employees), Midsized (50-999 employees), and Enterprise (1,000+ employees). Each segment receives customized pricing tailored to specific business needs.

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
ADP: Is there a current promotional offer for ADP payroll?

ADP currently offers 3 months free when signing up for small business payroll (promotion ends 9/24). Contact sales at 800-225-5237 for details and to request pricing based on your employee count.

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
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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