FastBill vs Monzo Business: Complete Comparison (2026)
An in-depth comparison of FastBill and Monzo Business to help you choose the right tool for your business.
Last updated: November 2026
FastBill
5.2/10
Cloud invoicing and bookkeeping software from Frankfurt for German freelancers and small businesses, with e-invoicing, DATEV export and direct VAT filing.
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 | 5.2/10 | 6.5/10 |
| Scalability | 3/10 | 3/10 |
| Analytics | 4/10 | 4/10 |
| Compliance | 7/10 | 7/10 |
| Integration | 5/10 | 6/10 |
| Security | 5/10 | 7/10 |
| Support | 4/10 | 6/10 |
| Cost | 5/10 | 8/10 |
| Customization | 6/10 | 4/10 |
| Ease of Use | 6/10 | 9/10 |
| Pricing | ||
| Free plan | No | Yes |
| Cheapest paid plan | €10/mo Solo | £9/mo Pro |
| Estimated cost for 10 users | €10/mo Solo | £25/mo Team |
| Features | ||
| Multi-currency | ||
| Accountant Access | ||
| Expense Management | ||
| Invoicing | ||
| Online Payments | ||
| Tax Compliance | ||
| Bank Reconciliation | Not listed | |
| Corporate Cards | Not listed | |
| Financial Reporting | Not listed | |
| General Ledger | Not listed | |
| Payroll | ||
FastBill vs Monzo Business cost by team size
| Team size | FastBill | Monzo Business |
|---|---|---|
| 1 user | €10/moSolo | £9/moPro |
| 5 users | €59/moPremium | £25/moTeam |
| 10 users | €10/moSolo | £25/moTeam |
| 25 users | €10/moSolo | FreeLite |
| 50 users | €10/moSolo | 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 FastBill
- Higher Customization score (6/10 vs 4/10)
- Includes Multi-currency, which Monzo Business lacks
Why choose Monzo Business
- Has a free plan (FastBill does not)
- Higher Cost score (8/10 vs 5/10)
- Higher Ease of Use score (9/10 vs 6/10)
Pros & Cons
FastBill
Pros
- Experte.de rated invoicing 1.3, its strongest area, covering quotes, recurring invoices, time tracking and XRechnung.
- XRechnung and ZUGFeRD e-invoicing are included in every plan.
- VAT pre-returns go straight to the tax office through ELSTER.
- DATEV export and tax advisor access make handing over to a Steuerberater simple.
- Invoices can carry payment links through PayPal, Stripe or Sofort.
Cons
- FastBill cannot produce an EÜR or P&L on its own; tests say these need an external tax advisor.
- There is no cash book, and fuer-gruender.de says there is no payroll interface either.
- Automatic dunning and extra receipts cost extra, and automatic bank matching needs Premium.
- Support is by message or email only, on weekdays, with no phone line or live chat.
- Reviewers describe the interface as dated.
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 5.2/10 for FastBill. The largest gap is in Cost: 5/10 for FastBill and 8/10 for Monzo Business.
Monzo Business has a free plan; FastBill does not list one.
FastBill has Multi-currency, which Monzo Business lacks.
