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Packages tailored to your company’s needs
A platform fully ready for KSeF – issue and receive e-invoices free of charge
Accounting for your business
Issue invoices, do your own accounting or outsource it to a specialist - check out the packages available and grow your business with our support.
Use the service, if:
- you're a sole trader
- you have business account in our bank
- you have access to Millenet
Check what you can gain
Free invoicingQuickly and on intuitive platform which is prepared for the Krajowy System eFaktur.
On your own or with an accountantYou have 3 packages to choose from, which can be adjusted to your business needs.
Finances in one placeLog in to your business account and easily go to accounting platform where you keep all your business documentation.
Three accounting packages to choose
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Free invoicing integrated with KSeF0 PLN per month
- unlimited invoicing
- customize the layout of your invoice by adding a background, logo and banner
- set and send recurring invoices
- everything you need for e-invoices – KSeF integration, invoice sending and receiving, and much more
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Self-accounting integrated with KSeF30 PLN net per month
- do your own accounting on a simple platform
- the system automatically books on the basis of added invoices and generates documents, e.g. revenue and expenditure ledger (KPIR), JKP V7, calculation of advance tax payments (PIT)
- you can share the document with your trusted accountant
- use for free for 3 months, then pay 30 PLN net per month
- everything you need for e-invoices – KSeF integration, invoice sending and receiving, and much more
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Accounting service integrated with KSeF99 PLN net for first 2 months
- you're assigned an accountant with experience in your industry - you're in phone and mail contact
- book up to 15 documents per month
- get a calculation of tax and ZUS
- unlimited invoicing and managing finances on a friendly platform
- get access to trainings and tools that help you run your business
- 219 PLN net monthly – regular price after first 2 months
- everything you need for e-invoices – KSeF integration, invoice sending and receiving, and much more
Promotional period: August 1st 2025 – June 30th 2026. Details in the terms of promotion Accounting Service for 99 PLN”
Millennium Accounting service – your easy start with KSeF
KSeF is a government system for issuing, receiving, and storing e‑invoices. It automates and standardizes invoicing in Poland.
What you get with Millennium Accounting service integrated with KSeF
- Ready for new regulations. Stay compliant with current and upcoming Ministry of Finance requirements.
- Quick setup. Connect your certificate in minutes – no installation needed.
- Peace of mind and security. Your data is encrypted and monitored 24/7.
- Unlimited free invoicing. Send and receive invoices without limits and without fees.
- Access from anywhere. Manage your invoices from your computer or phone.
How to download and upload the KSeF certificate to Millennium Accounting service [in Polish]
Learn more about KseF
- ???link.opens.in.new.window??? Get Ready for KseF with Millennium Accounting [in Polish]
- ???link.opens.in.new.window??? How KSeF Works – A Guide to the National e-Invoice System [in Polish]
- ???link.opens.in.new.window??? Generating and uploading KSeF certificates – detailed guideline [in Polish]
- ???link.opens.in.new.window??? KSeF in simple steps - shortened instruction [in Polish]
- ???link.opens.in.new.window??? KSeF terminology
Running a business gets easier
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Support from an experienced accountant
You can buy a consultation of a specialist with experience in your industry at any time.
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Ready-to-use declarations and settlements
The system automatically creates tax declarations and settlements with authorities. Avoid mistakes and save your time.
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Send reminders to customers
Check unpaid invoices and send reminders to your customers requesting a transfer.
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Automation of accounting matters
Use automation functions, e.g. sending recurring invoices, booking the documents, month-end close process.
Don't have a business account? Fill in a short and simple application for Konto Mój Biznes. After account opening, choose the accounting package, activate it and use it.
Frequently asked questions
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Who can use an accounting service?
You can use the accounting service for Bank Millennium if you're a sole trader, hold a business account with us and have access to Millenet.
If you don't have the business account, you can conveniently open it onlineopen in new window, and then add accounting service to it.
If you don't have a business yet, open it online together with the account with us, and then apply for accounting in Millenet or in the mobile app.
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How do I log in to the Accounting platform?
Log in to your business account in Millenet and select Offer from the menu, then Additional Services and Accounting. You'll be taken directly to the accounting platform.
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Can I use Accounting on mobile devices?
The platform isn't adapted for mobile devices. Use in on a computer.
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Where can I find instructions for using the Millennium Księgowość system?
Instructions and training materials are available at: millenniumksiegowosc.pl/instrukcje/the link opens in a new tab
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How do I pay for the package?
You receive invoices and pay them on your own.
Soon a new easy payment feature will be added. We'll automatically fill in a transfer form for you. You'll only confirm it.
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Important documents
- ???link.opens.in.new.window??? Millennium Księgowość service regulations (in Polish) - valid till 30.11.2023
- ???link.opens.in.new.window??? Millennium Księgowość service regulations (in Polish) - valid from 01.12.2024
- ???link.opens.in.new.window??? Millennium Księgowość service regulations (in Polish) - valid till 14.03.2024
- ???link.opens.in.new.window??? Millennium Księgowość service regulations (in Polish) - valid from 15.03.2024
Any questions? Mail or call the service provider - Cash Director
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pomoc@bankmillennium.pl
Send e-mail message toy
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22 100 50 97
Technical support for the platform (Mon-Fri, 9 a.m. to 5 p.m.)
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22 100 96 96
Assistance in setting up a business or accounting (Mon-Fri, 9 a.m. to 9 p.m., weekends 9 a.m. to 5 p.m.)
Legal note
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Legal note
The Millennium Accounting service is provided by CashDirector S.A. with its registered office in Warsaw at Al. Jerozolimskie 96, 00-807 Warsaw. All information regarding the service is available in the "Terms of the Millennium Księgowość service", which is available at www.bankmillennium.pl and in the Millennium Księgowość system after logging in to Millenet. The service is available to entrepreneurs running a sole proprietorship, using Konto Moje Biznes and Millenet electronic banking.
Detailed rules for maintaining company accounts, information on fees and interest rates are indicated in the General Terms and Conditions of Opening and Maintaining Bank Accounts for Biznes w Bank Millennium S.A. Customers, the Price List of Services, which are available at the Bank's outlets and on the website www.bankmillennium.pl.