We pull your invoices from KSeF, keep the revenue records and file your JPK returns. Once a month you get a single message: how much tax and ZUS to pay, by when, and a transfer ready to send. All of it supervised by a dedicated accountant.
August 2026
SettledDue this month
6,329.13PLN
Ryczałt 8.5%
Tax micro-account
1,921.00 PLN
due 20 Sep
ZUS social
DRA filed
1,646.47 PLN
due 20 Sep
ZUS health
Ryczałt, band I
461.66 PLN
due 20 Sep
VAT
JPK_V7M sent
2,300.00 PLN
due 25 Sep
Registers and filings PlusBook works with: KSeF, CEIDG, GUS REGON, Wykaz podatników VAT, VIES, JPK_EWP, JPK_V7, PIT-28, Mikrorachunek podatkowy, ZUS DRA.
How it works
An ordinary month asks nothing of you. An unusual one asks a single question you can answer in a sentence.
And nothing else. Your name, address, REGON, PKD codes and start date come from CEIDG; your VAT status and business account from the VAT taxpayer register.
One authorisation. From then on invoices reach us by themselves - no sending PDFs, no photographing receipts, no month-end panic.
We work out what each line is for, pick the right ryczałt rate and keep the revenue records. The amounts are computed by a tax engine - with a specific provision behind every figure.
How much ryczałt, how much ZUS, by when and to which account - with the transfer ready inside it. We file the JPK returns on your behalf and collect the UPO receipt.
What we do
We serve sole traders settling under ryczałt, the lump-sum tax on recorded revenue: VAT-registered or not, monthly or quarterly, and with several rates at once.
We pull them daily and assign the right ryczałt rate straight away. You send nothing and retype nothing.
Software development
Nordvind sp. z o.o.
Workshop and consulting
Studio Kreska
Property rental
Fundacja Wschód
Ask where any amount came from. The assistant answers from the stored calculation trail and points to the provision - it never guesses.
Why did the ryczałt come out at 1,921 PLN?
Kept as the month goes, by the date the revenue arose. Corrections are booked in the month the correcting invoice was issued.
JPK_EWP every month, JPK_V7 if you are VAT-registered, PIT-28 after the year ends. The UPO receipt is stored with the settlement.
Ryczałt to your tax micro-account, contributions to ZUS. Amount, reference and deadline - copied in one click.
You give us the client's number and we fetch the rest from REGON and the VAT register. Numbered from your own series, sent to KSeF.
The 20th and the 25th, public-holiday shifts, quarters, PIT-28 - you get a reminder before a deadline turns into a problem.
No risk to you
Automation without liability is just risk handed to the customer. Here the risk stays on our side - and every figure leaves a trail you can follow.
Calculation trail · August 2026
Keeping your books is covered by professional indemnity insurance. If the mistake is ours, we cover what follows from it - not you.
The model works out what an invoice is for. Every amount is computed by a deterministic engine against a stored version of the rules, so August 2026 recomputed in 2029 gives the same figure.
Where the edge of a provision is genuinely unclear - and under ryczałt it sometimes is - we do not guess. When something needs pinning down you get one plain question by email, and your answer is stored as a rule for the months that follow.
A dedicated accountant supervises your books. The competitive price comes from AI tools that take the retyping and the searching off their desk - but a named person answers for your settlement, not a system, and you can reach that accountant at any time.
Company data comes from CEIDG, REGON and the VAT taxpayer register, and every lookup is documented - together with proof of due diligence on your counterparty.
What comes next
We widen the scope only once the previous one is finished to the last edge case. Tell us what you need - we will let you know when it is ready.
Available today
Sole traders, VAT-registered or not, settled monthly or quarterly, with any number of rates.
In preparation
Costs, depreciation, the tax scale and flat tax. The same way of working: documents from KSeF, the month closed without you.
After that
Statutory books, CIT and reporting for limited companies - for businesses that have outgrown sole trading.
Pricing
You pay monthly for the month being closed. Leave whenever you like - with the whole of your data and records.
Ryczałt · sole trader
89PLN net / month
The same price with VAT and without, on monthly and quarterly settlement, on one ryczałt rate and on several.
Start with your NIPWe settle your first month before you pay.
We do not handle KPiR, the tax scale, flat tax or companies yet. If you settle under anything other than ryczałt, tell us - we will let you know when we are ready.
Questions
If something is missing here, write to kontakt@plusbook.pl. We answer specifically.
The AI does exactly one thing: it works out what a given invoice is for, so the right ryczałt rate can be assigned to it. Every amount - tax, contributions, deadlines - is computed by a tax engine against stored provisions. And a real accountant oversees all of it.
Yes. A dedicated accountant supervises your books - the model does not work unsupervised. AI tools take the retyping and the searching off their desk, which is where our price comes from, but a named person answers for your settlement. You can reach that accountant at any time: to talk something through, to be sure about a rate, or simply to speak to a person rather than an assistant.
We are. Keeping the books is covered by professional indemnity insurance, and every settlement has a stored calculation trail: the version of the rules, the rate applied and the legal basis. That is what makes it possible to say where the error arose - and who covers it.
From 2026 KSeF is mandatory, so your sales invoices go through it anyway. We simply pull them from there automatically instead of asking you to send files. Invoices from outside KSeF are handled too.
Then we do not guess. You get one question put in plain language - whether a particular service was advice or delivery, for instance - and your answer is stored as a rule that holds for the months that follow, without asking again.
Yes. We serve sole traders both registered for VAT and exempt from it, on monthly and quarterly settlement. For VAT-registered traders we keep the records and file JPK_V7.
You create an account with your NIP, connect KSeF and name the month from which we take over. Earlier periods stay with your current firm - we do not need your history transferred in order to start.
At any time, with no notice period. Your records, invoices and filed JPK files together with their UPO receipts download in formats any accounting firm will accept.
We are not for you yet. KPiR is in preparation and full company accounting comes straight after it. Write to us and we will get in touch when it is ready.
Signing up takes two minutes and starts with a single field. We read the rest from the registers.