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 hard

KSeF is now mandatory

Since April 1, 2026, every freelancer in Poland must send structured e-invoices via KSeF. Non-compliance means penalties.

Existing tools are expensive

Fakturownia, inFakt, wFirma — all charge €10-20/mo for features freelancers never use.

Interfaces built for accountants

Dozens of fields, confusing menus. You just want to send one invoice, not manage a corporation.

Wystaw.app — invoicing that makes sense

Built for KSeF from day one

No bolted-on integration. KSeF is the foundation — your invoices reach the system automatically.

30 seconds per invoice

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

€5/mo forever for the first 100

Join the beta and lock in the lifetime price. Standard price after launch: €7/mo. No hidden fees.

How it works

1

Sign up for the beta

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

2

Connect to KSeF

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

3

Start invoicing

Pick a client, add a line item, click "Invoice." It reaches KSeF instantly.

Frequently asked questions

Is KSeF mandatory?+

Yes. Since April 1, 2026, every sole proprietor (JDG) in Poland must issue structured e-invoices via the National e-Invoice System (KSeF).

How much does Wystaw.app cost?+

Standard price after launch is €7/mo. The first 100 beta users get €5/mo forever — no catch.

When does the beta start?+

We're planning to launch the beta in June 2026. Join the waitlist so you don't miss the invite.

Is the app available in English?+

Yes! The interface will be available in both Polish and English. Perfect for expats and international 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 is this different from Fakturownia or inFakt?+

We're building 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 let you know when the beta launches.