IRIS KashFlow vs Zoho Books (2026): which should you pick?

Pick IRIS KashFlow if

• Fits if you're a UK limited company that wants VAT returns and payroll in one product
• Works for sole traders who sell through Shopify, WooCommerce or Amazon

Look elsewhere if

• Tight if you're on Starter: one user, 10 invoices and 25 bank transactions
• Not for you if you're outside the UK, since VAT goes to HMRC and prices are in pounds
• Watch out: the £1.35 and £2.75 months and the annual prices are new-customer offers
• Pricey if you need more than one user: Business is £27.50 a month plus VAT

Pick Zoho Books if

• Fits if your business turns over less than $50K a year and you want to pay $0
• Works for businesses already running other Zoho apps

Look elsewhere if

• Tight if your team grows, since plans cap users at 3, 5, 10 or 15 and more cost $3 each a month
• Pricey if you need warehouses or Amazon and eBay channels, which start on Elite at $120 a month
• Not for you if you're past $50K revenue and hoping to stay free
• Tight if you bill a lot: invoices are capped at 1,000 a year on Free, 5,000 on Standard and 25,000 on Premium
• Watch out: automatic bank feeds need Standard, and the free plan can't take paid add-ons other than autoscans

IRIS KashFlow

• Built for UK businesses: VAT submission goes to HMRC, and prices are in pounds.
• Starter is limited to a single user, 10 invoices and 25 bank transactions to reconcile; Business lifts those limits.
• The page marks the annual prices (£97 and £178 plus VAT) as discounted offers for new customers only.
• The pricing page names a mobile app but not which operating systems it runs on.

Zoho Books

• The free plan stays free only while revenue is under $50K a financial year, and paid add-ons other than autoscans cannot be added to it.
• Each plan caps users at 3, 5, 10, 10 or 15; more cost $3 per user a month, or $2.50 billed annually.
• Every plan caps invoices and bills a year: 1,000 on Free, 5,000 on Standard, 10,000 on Professional and 25,000 on Premium.
• These are US prices; Zoho lists separate editions for 18 countries plus a global one, including the UK, Canada, India and Australia.

IRIS KashFlow

Invoicing and quotes

Send quotes and invoices, set up repeat invoices and purchases, schedule customer statements and set credit limits.

VAT returns

VAT is managed in the software and can be submitted online to HMRC; the vendor also has a Making Tax Digital page.

Bank feeds and reconciliation

Bank feeds bring in transactions to reconcile, capped at 25 on Starter and unlimited on Business.

Purchases, expenses and receipts

Manage purchases and expenses, track mileage and capture receipts with a mobile app.

Payments

KashFlow Payments and IRIS Pay let customers pay invoices online.

Payroll and reports

Both plans list payroll for up to 5 employees, over 50 reports, multi-currency and a customizable dashboard.

Zoho Books

Invoicing and online payments

Quotes, invoices, recurring invoices, retention payments and automatic reminders, with a customer portal for paying online.

Banking and reconciliation

Reconcile accounts on every plan. Automatic bank feeds start on Standard, along with recurring expenses and period locking.

US tax and 1099s

Track sales and use tax, manage W-9s and 1099 contractors, and e-file 1099-MISC and 1099-NEC forms from Standard up.

Projects and inventory

Professional adds timesheets, project profitability and basic inventory. Elite adds warehouses, serial and batch tracking and shipping labels.

Automation and customization

Workflows, approvals and custom roles from Professional; custom modules, buttons and functions from Premium; Blueprints on Elite.

AI in accounting

Ask questions about the books in plain English, spot anomalies and automate collections, plus receipt autoscans on every plan.

IRIS KashFlow

• Starter£13.50

  per month, billed monthly (£97 a year, new customers)

  Single user; unlimited quotes, 10 invoices and 25 bank transactions to reconcile. New customers pay £1.35 a month for 6 months.

• Business£27.50

  per month, billed monthly (£178 a year, new customers)

  Multi-user; unlimited quotes, invoices and bank transactions. New customers pay £2.75 a month for the first 6 months.

Zoho Books

• Free$0

  Revenue under $50K a year. 1 user and 1 accountant, up to 1,000 invoices a year, recurring invoices, payment reminders and 1099 filing.

• Standard$15

  per organization / month, billed annually

  $20 billed monthly. 3 users, bank feeds, sales and use tax, 1099 e-filing, custom reports, API access and 5,000 invoices a year.

• Professional$40

  per organization / month, billed annually

  $50 billed monthly. 5 users, sales and purchase orders, multiple currencies, timesheets, project profitability, retainers and inventory.

• Premium$60

  per organization / month, billed annually

  $70 billed monthly. 10 users, fixed assets, budgets, cash flow forecasting, a vendor portal and custom modules.

• Elite$120

  per organization / month, billed annually

  $150 billed monthly. 10 users, advanced inventory with warehouses and batch tracking, Etsy, eBay and Amazon channels, and up to 2 Shopify stores.

• Ultimate$240

  per organization / month, billed annually

  $275 billed monthly. 15 users and built-in business intelligence with 50+ prebuilt visualizations, KPI tracking and embeddable reports.

IRIS KashFlow

• Other savings

  90% off the first 6 months

  New customers on monthly billing pay £1.35 (Starter) or £2.75 (Business) a month for 6 months, then the regular monthly price.

• Annual discount

  Annual plans for new customers

  New customers can pay £97 a year for Starter or £178 a year for Business, plus VAT, against listed RRPs of £162 and £291.50.

Zoho Books

• Annual discount

  Save up to 25% with yearly billing

  Yearly billing cuts Standard from $20 to $15 a month, Professional from $50 to $40, Premium from $70 to $60, Elite from $150 to $120 and Ultimate from $275 to $240.