Invoices that
write themselves.
Create, track, and collect on professional invoices in under a minute. Built for EU freelancers and small businesses.
Flowtark in numbers
Everything you need. Nothing you don't.
A focused tool for sending invoices and getting paid — not a bloated ERP.
Fast invoice creation
Pre-filled client and service data. Live totals as you type.
EU reverse charge built-in
Automatic 0% VAT for cross-border B2B clients. No spreadsheet math.
Beautiful PDFs
Professional invoices with your branding, one click to download.
Bank-ready references
Valid IBAN, SWIFT/BIC and reference numbers for banks worldwide — Europe, UK, US, beyond.
Client & service library
Never retype a client or service rate again.
Secure & encrypted
Bank-grade encryption at rest and in transit. Daily backups, role-based access, GDPR ready.
Trusted by freelancers across Europe.
Here's what early users are saying about the reverse-charge + VIES workflow.
“The VIES auto-fill is the killer feature. I type in a Belgian VAT number, click Verify, and the company name and address fill themselves. My reverse-charge invoices finally pass my accountant's review on the first try.”
“I bill clients in SEK, NOK and EUR. Flowtark is the only tool I found that keeps each invoice in its native currency and shows me separate dashboards — no messy FX conversions. Setup took under ten minutes.”
“Clean, fast, no nonsense. The free plan took me through my first six months of freelancing; upgrading to Starter was a no-brainer the moment I needed my logo on the PDF. Best €3 I spend each month.”
Three steps. Then you're invoicing.
Set up your company
Enter your details once — they pre-fill every invoice.
Add clients & services
Build your library of reusable entries.
Create & download
Pick client, add line items, download PDF.
See where your business stands at a glance.
Issued, paid, overdue, total revenue. Trends against last month. Everything important on one screen — no dashboards to build.
- Monthly issued & paid at a glance
- Overdue highlighted, not hidden
- Revenue trend vs last month
Smart line items, automatic totals.
Pick a service from your library and the price fills in. Change the qty and totals recalculate in the sidebar. VAT adjusts based on the client's country.
- Autocomplete from your service library
- Live totals in a sticky sidebar
- Auto-VAT by country code
Your entire client roster, in one place.
Country code drives VAT. Last invoice date tells you who to nudge. Click any client to see every invoice you've ever sent them.
- Auto-VAT from country code
- Invoice history per client
- Search, filter, export
Start free. Scale when you need to.
Built aggressively cheap — cheaper than every comparable tool on the market.
For trying it out — forever free.
- 3 invoices / month
- Up to 3 clients
- PDF export · EU VAT · VIES
For freelancers who bill regularly.
- Unlimited invoices
- Unlimited clients
- No Flowtark watermark on PDFs
- Edit invoices after creation
- Custom logo & brand colour
- Multi-currency invoicing
- Recurring invoices
- Shareable invoice links
For small teams & holding companies.
- Unlimited invoices
- Unlimited clients
- No Flowtark watermark on PDFs
- Edit invoices after creation
- Custom logo & brand colour
- Multi-currency invoicing
- Team members & role permissions
- Client profiles & notes (CRM)
- Client portal (self-serve)
- Recurring invoices
- Shareable invoice links
- REST API access
E-invoicing for regulated markets
PEPPOL (BE/LV/NO/SE/DK/LU/NL) · KSeF (PL) · RO e-Factura · ZUGFeRD / Factur-X (DE/FR) · OSS mode
All plans: cancel anytime · No credit card on Free · Annual saves up to 25%
Common questions
Do I need to install anything?
No. Flowtark is a fully hosted cloud app — sign up and start invoicing from your browser.
How is my data stored?
Securely in EU data centers with encryption at rest and in transit, daily backups, and one-click export to JSON/CSV whenever you want.
Can I customize the PDF?
Yes on Starter and above. Add your logo, switch accent colors, and pick a template.
Which countries are supported for VAT?
Any country — VAT rates, reverse-charge rules and currency are fully configurable per client to match your local tax setup.
Can I switch plans or cancel?
Anytime. Upgrade, downgrade or cancel in one click — no retention forms, no phone calls.
How do I back up my data?
We back up your data daily. You can also export everything (invoices + clients + services) to JSON or CSV from Settings at any time.