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Where you work from. Its public holidays are loaded, and sending to KSeF applies only to work done from Poland.
Where your client is. Its public holidays are loaded too, so the calendar can show both and mark the overlaps.
The cap this contract allows. The calendar counts working days against it and shows what is left.
What a full working day means here. A half day off counts as half of it.
The taxpayer these invoices are issued by. Its details fill the From block on every invoice for this contract.
The client these invoices are billed to. Its details fill the Billed to block, and KSeF identifies it by the tax identifier held against it.
Poland's national e-invoicing system. Saving with this on requires a seller that can reach KSeF and a buyer with a tax identifier.
Ryczałt od przychodów ewidencjonowanych. Art. 12 ust. 1 pkt 2b lit. b sets 12% for services related to software, which is the rate this asserts. Turning it on gives the contract an annual revenue register and a JPK_EWP to file; each invoice keeps the rate it was issued under.
Both are optional; left empty, the message is written for you. The invoice travels as the attachment either way and states its own terms, so nothing here has to repeat them. Fill in an invoice's own details with {number}, {period}, {issue_date}, {due_date}, {seller_name}, {buyer_name}, {corrected_number}. A correction invoice goes out under this wording too, so {corrected_number} is what names the document it corrects.
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About

Your contract has a day cap. Two countries have different holidays. We do the math.

When you work across borders on a capped contract, two countries means two holiday calendars. Work Another Day shows you both, highlights the overlaps, and tracks your remaining budget.

How it works

Step 1
Set up your contract

Enter your home and client countries, contract dates, and the maximum working days allowed.

Step 2
See both holiday calendars

Public holidays for both countries are loaded automatically. Overlapping holidays are highlighted - those are the ones to book first.

Step 3
Book days off, track your budget

Mark full days or half-days off on the calendar individually or in bulk. Your remaining budget updates in real time.

Features

Dual-country holiday view

See public holidays of your home country and your client's country side by side. Overlapping holidays are highlighted so you can book those first.

One-click day-off booking

Book all home holidays, all client holidays, only the overlaps, or all holidays from both countries combined - one click each.

Day-off budget tracking

See at a glance how many working days you've used, how many days off you've booked, and how many more you need to take to stay under your cap.

Import and export

Export your days off as an .ics file, or import existing bookings from one.

Live calendar sync

Subscribe to a calendar URL that updates automatically. Your days off stay in sync with Apple Calendar, Google Calendar, or Outlook.

Invoices from your calendar

At the end of the month, generate an invoice straight from the monthly summary. The working-day quantity is pre-filled from the calendar. Add line items, preview, and save as PDF.

Invoice details carry over

Business name, addresses, IBAN, rates, and recurring line items are remembered, so each month starts where the last one left off. Without an access token they are remembered in your browser only; with one they are stored with your account, which is what lets an invoice be found, corrected and sent again later.

No account needed

Start using the app the moment you arrive - no email, no password, no personal data. Until you save a random access token, everything about your invoices stays in this browser. Saving one keeps them instead, so you can come back to them from anywhere.