Invoice in 30 seconds

KSeF-first. No accountant needed. Simple invoicing for freelancers and expats in Poland - cheaper than the rest

Invoicing shouldn't be this complicated

KSeF became mandatory

Since April 1, 2026, every sole proprietor (JDG) must send invoices via the National e-Invoice System. Non-compliance risks a financial penalty.

Existing tools are expensive

Fakturownia, inFakt, wFirma - each charges 50-80 PLN/mo for features you'll never use.

Interfaces designed for accountants

You want to issue one invoice, but it feels like you're managing a corporation. You get lost in features.

Wystaw.app - invoicing that makes sense

Built for KSeF from scratch

KSeF is the foundation - your invoices reach the system automatically. You don't have to think about it.

30 seconds per invoice

We remember your clients, rates, and line items. Just pick, confirm, and done.

FREE 6 months for the first 100 customers

Start with us now and take advantage of the promotion. No hidden fees.

How it works

Try the test version

Enter your email - we'll notify you when we're ready.

Connect to KSeF

Authorization takes one minute. We'll guide you through every step.

Issue invoices

Pick a client, add a line item, click "Invoice." The invoice reaches KSeF automatically.

Frequently asked questions

Is KSeF mandatory?

Yes. Since April 1, 2026, every sole proprietor (JDG) must send structured e-invoices to the National e-Invoice System.

How much does Wystaw.app cost?

Standard price after launch is 25 PLN/mo. The first 100 testers get free access for 6 months - no catch.

When do we start?

We're planning to start in June 2026. Sign up for the waitlist so you don't miss the invite.

Can I use Wystaw.app in English?

Yes! The interface will be available in both Polish and English. Perfect for expats and freelancers working in Poland.

What data do you collect when I sign up?

Only your email address. We don't share it with anyone. See our privacy policy for details.

How are you different from Fakturownia or inFakt?

We're building the app from scratch for KSeF — not bolting on an integration. Simpler interface, lower price, focused on freelancers.

Ready for simpler invoicing?

Join the waitlist. We'll notify you when the test version launches.