KashFlow vs Monzo Business: Complete Comparison (2026)
An in-depth comparison of KashFlow and Monzo Business to help you choose the right tool for your business.
Last updated: November 2026
KashFlow
5.3/10
KashFlow is a UK cloud accounting package from IRIS for sole traders and small businesses. It covers invoicing, bank feeds, VAT filing, and basic payroll.
Monzo Business
6.5/10
Monzo Business is an app-based UK business bank account for sole traders and limited companies. It includes invoicing, Tax Pots, expense cards and accounting software bank feeds.
Feature-by-Feature Comparison
| Feature | | |
|---|---|---|
| Scores | ||
| Overall Rating | 5.3/10 | 6.5/10 |
| Scalability | 3/10 | 3/10 |
| Analytics | 5/10 | 4/10 |
| Compliance | 6/10 | 7/10 |
| Integration | 5/10 | 6/10 |
| Security | 5/10 | 7/10 |
| Support | 3/10 | 6/10 |
| Cost | 8/10 | 8/10 |
| Customization | 3/10 | 4/10 |
| Ease of Use | 6/10 | 9/10 |
| Pricing | ||
| Free plan | No | Yes |
| Cheapest paid plan | £14/mo Starter | £9/mo Pro |
| Estimated cost for 10 users | £28/mo Business | £25/mo Team |
| Features | ||
| Financial Reporting | ||
| General Ledger | ||
| Multi-currency | ||
| Payroll | ||
| Accountant Access | ||
| Expense Management | ||
| Invoicing | ||
| Online Payments | ||
| Tax Compliance | ||
| Bank Reconciliation | Not listed | |
| Corporate Cards | Not listed | |
| Inventory Accounting | Not listed | |
KashFlow vs Monzo Business cost by team size
Monzo Business costs less at every team size we checked.
| Team size | KashFlow | Monzo Business |
|---|---|---|
| 1 user | £14/moStarter | £9/moPro |
| 5 users | £28/moBusiness | £25/moTeam |
| 10 users | £28/moBusiness | £25/moTeam |
| 25 users | £28/moBusiness | FreeLite |
| 50 users | £28/moBusiness | FreeLite |
The plan that fits each team size, billed monthly, before add-ons and usage charges. Each cost opens that tool's pricing calculator for the team size.
Which One Should You Choose?
Why choose KashFlow
- Higher Analytics score (5/10 vs 4/10)
- Includes Financial Reporting, which Monzo Business lacks
- Includes General Ledger, which Monzo Business lacks
- Includes Multi-currency, which Monzo Business lacks
Why choose Monzo Business
- Has a free plan (KashFlow does not)
- Lower estimated cost for 10 users: £25/mo vs £28/mo
- Higher Support score (6/10 vs 3/10)
- Higher Ease of Use score (9/10 vs 6/10)
- Better fit for freelancers (9/10 vs 7/10)
Pros & Cons
KashFlow
Pros
- Low entry price, with steep introductory discounts for new customers
- Payroll for up to five employees is included rather than sold separately
- VAT management and online submission are built into both plans
- Stock control and multi-currency are included even on the cheapest plan
- Accountants can use KashFlow Connect at no charge
Cons
- The Starter plan caps invoices at 10 and bank reconciliation at 25 transactions, and allows only one user
- Reviewers call it too basic for medium-sized businesses and difficult to customise
- Very low Trustpilot rating (1.4) and app store ratings, with complaints about customer service
- The API is SOAP-based, and some reviewers say it integrates less well than rivals
Monzo Business
Pros
- The Lite plan is free and includes Making Tax Digital software
- Pro adds invoicing, Tax Pots and live feeds to Xero, QuickBooks, FreeAgent and Sage for £9 a month
- The Team plan adds expense cards, payment approvals and bulk payments for up to 15 users
- 24/7 in-app support on every plan
- Licensed UK bank with FSCS deposit protection
Cons
- Holds GBP only, and incoming foreign currency is converted at a 1% fee
- No general ledger or financial statements, so you still need separate accounting software
- Partnerships, LLPs, charities and non-UK businesses cannot open an account
- Cash deposits cost £1 each and are capped
- Reviews report frozen accounts and slow resolution, and there is no dedicated account manager
Not sold on either?
Frequently Asked Questions
Monzo Business scores higher on our Finance Software criteria: 6.5/10 against 5.3/10 for KashFlow. The largest gap is in Ease of Use: 6/10 for KashFlow and 9/10 for Monzo Business.
Monzo Business costs less for 10 users: about £25/mo on its Team plan, against about £28/mo on its Business plan for KashFlow, billed monthly.
Monzo Business has a free plan; KashFlow does not list one.
Monzo Business is the better fit for freelancers: we rate it 9/10 for them, against 7/10 for KashFlow.
KashFlow has Financial Reporting, General Ledger, Multi-currency and 1 more feature that Monzo Business lacks.
