Bookkeeping for Dutch freelancers (ZZP), built for the desktop.
Florin handles your invoices, expenses, VAT returns, tax estimate, hours, mileage, assets, and pension allowance — all in one place, entirely offline. No subscription. No account. No cloud. Your data stays on your machine.
Available in Dutch and English.
Create professional PDF invoices with automatic numbering. Supports regular invoices, credit notes, ICP (intracommunautaire prestaties), and BTW-verlegd. Track status: Draft, Sent, Paid, Cancelled, Refunded, Overdue.
Log business expenses by category with VAT reclaim, business use percentage for mixed costs, and receipt tracking.
Quarterly BTW return pre-filled from your invoices and expenses. Covers all standard fields: 1a/1b/1c, 3a (ICP), 5a/5b. Track filing and payment status per quarter.
Real-time income tax calculation with all Dutch deductions applied:
- Zelfstandigenaftrek
- Startersaftrek (first 3 years)
- MKB-winstvrijstelling (12.7%)
- KIA / EIA / MIA investment deductions
- Car mileage allowance (€0.23/km)
- Asset depreciation
- Pension (lijfrente) deduction
- Algemene heffingskorting and arbeidskorting
Track billable and non-billable hours per client and project. Progress bar shows your urencriterium status (1,225 hrs/year) — required for the zelfstandigenaftrek.
Log business trips with make, licence plate, odometer readings, and purpose. Calculates your total deductible allowance at €0.23/km.
Track capital investments with straight-line depreciation, business use percentage, and KIA / EIA / MIA eligibility. Depreciation feeds directly into your tax calculation.
Calculate your annual pension contribution allowance (30% rule) including AOW franchise, Factor A, and unused allowance from prior years. Planned contributions are deducted from your taxable income.
Manage your client list with VAT number, KVK number, contact details, and Wet DBA risk level. Track contract status per client.
Set your business name, VAT number, KVK number, IBAN, and language (Dutch or English). Startersaftrek eligibility can be toggled to apply the additional deduction automatically.
Get the latest release for your platform from the Releases page.
| Platform | File |
|---|---|
| macOS | florin-macos.zip |
| Windows | florin-windows-x64.zip |
| Linux | florin-linux-x64.tar.gz |
- Unzip
florin-macos.zip - Move
Florin.appto your Applications folder - Right-click
Florin.appand choose Open - Click Open in the dialog that appears
If you see "damaged and can't be opened", run this in Terminal:
xattr -cr /Applications/Florin.app- Unzip
florin-windows-x64.zip - Run
florin.exe - If Windows SmartScreen appears, click More info then Run anyway
- Extract
florin-linux-x64.tar.gzto a folder, e.g.~/.local/lib/florin/ - Run
./florin
To add Florin to your app launcher, copy data/florin.desktop to ~/.local/share/applications/ and update the Exec= path.
git clone https://github.com/RashadAnsari/florin.git
cd florin
flutter pub get
flutter run -d macosFlorin is provided as a tool to help you organise your financial records. It is not a substitute for professional tax or legal advice.
The tax calculations, deductions, and figures shown in Florin are estimates based on publicly available Dutch tax rules. They may be incomplete, outdated, or not applicable to your specific situation. Always verify your tax obligations with a qualified accountant (boekhouder) or tax advisor before filing with the Belastingdienst.
The author accepts no liability for errors in calculations, missed deadlines, incorrect filings, financial loss, or any other consequence arising from the use of this software. Use Florin at your own risk.