For sole proprietorships
Free accounting for sole proprietors: KPiR, flat-rate tax and VAT
Do you run a sole proprietorship and look for accounting software for free? The Basic plan is designed for one company: you choose KPiR or flat-rate tax, issue invoices, and the AI assistant proposes posting your costs. The plan costs PLN 0, has no time limit and needs no card.
- Free, no card required
- Full access for 3 months
- Then the free Basic plan
Basic plan limits: companies 1, users 3, documents 100 per month, AI credits 100 per month.
Basic plan
What you get for PLN 0 and what the limits are
The Basic plan costs PLN 0, has no time limit and needs no card. We state the limits up front so you know what to expect.
For PLN 0 you get
- Tax revenue and expense ledger (KPiR, 2026 template, 19 columns) for the progressive tax scale and flat income tax
- Revenue records for flat-rate tax (17 columns, rates from 3% to 17%)
- The way of keeping books suggested from the legal form and the form of taxation
- Ledger entries from sales and purchase invoices, including those downloaded from KSeF; you fix a mistake with a reversal
- AI proposals of tax-deductible costs (e.g. entertainment 0%, a car also used privately 75%), which you approve
- Sales invoices with KSeF, VAT and JPK_V7
- Advance calculator and drafts of PIT-28, PIT-36L and PIT-36
Basic plan limits
- Companies
- 1
- Users
- 3
- Documents per month
- 100
- AI credits per month
- 100
To start with, you get full access to all features: company 3 months, accounting firm 6 months, no card. After that the account stays on the Basic plan and we block nothing.
Step by step
How it works, step by step
How to start as a sole proprietor
1. Create an account
You enter your e-mail, no card is needed. You choose a company account.
2. Choose the form of taxation
In the company's tax profile you indicate the legal form and the form of taxation. Zaksio suggests the way of keeping books: KPiR or flat-rate revenue records.
3. Add invoices and a statement
You download invoices from KSeF or upload scans, and import the bank statement from a file.
4. Approve proposals
AI proposes the posting and the deductible share of cost for each purchase line, with a justification. You approve.
5. Prepare VAT and PIT
Zaksio prepares JPK_V7 and PIT drafts. You download them, check them and file them yourself or through your accounting firm.
Plainly
What you will not find in the free plan
So there are no surprises: this is where the Basic plan ends.
- The decision on the form of taxation: we do not make the choice for you, Zaksio only suggests the way of keeping books that matches the form you chose.
- Filing returns for you: you download JPK files and PIT drafts ready to file and file them yourself or through your accounting firm.
- Larger scale: above the Basic plan limits (companies 1, users 3, documents 100 per month) you need a paid plan. Your data and documents stay.
- A larger AI budget: the Basic plan has 100 AI credits per month, larger pools are on paid plans.
- Extended support: on the Basic plan we help by e-mail, while chat and priority support are on paid plans.
- Bookkeeping done by a person: Zaksio is software with an AI team, not an accounting firm. If you like, you can invite your own accounting firm to the account.
FAQ
Frequently asked questions
Ask Oskar, our AI assistant, or browse the most common questions.
Can a sole proprietor keep accounts in Zaksio for free?
Yes. The Basic plan costs PLN 0, has no time limit and needs no card. The Basic plan is designed for sole proprietorships and micro-businesses. Basic plan limits: companies 1, users 3, documents 100 per month, AI credits 100 per month. Larger limits are on paid plans.
KPiR or flat-rate tax: which to choose?
Zaksio supports both ways. KPiR is for taxpayers on the progressive scale or flat income tax, and revenue records are for flat-rate taxpayers. You choose the form of taxation, and Zaksio suggests the matching way of keeping books.
How many documents per month can I add for free?
On the Basic plan the document limit is 100 per month and applies to issued sales invoices and corrections. If you need more, you choose a larger plan and your data stays.
Will AI calculate tax-deductible costs?
AI proposes what share of an expense is a tax-deductible cost, and you approve. The rules from the PIT Act are written in code, and the language model does not calculate amounts.
Will Zaksio file VAT and PIT for me?
No. Zaksio does not file returns for you. Zaksio prepares a file compliant with the official schema, and you download it, check it and file it yourself or through your accounting firm.
Can I run a civil partnership on the free plan?
You choose a civil partnership or a professional partnership as the legal form when registering the company, and keep the ledger as KPiR or revenue records. The same Basic plan limits apply, including companies: 1.
What will happen when full access ends?
To start with, you get full access to all features: company 3 months, accounting firm 6 months, no card. After that the account stays on the Basic plan: we block nothing, your data and documents stay, and the limits only apply to adding new items beyond the plan.
What if my business grows?
When you need more companies, users or documents, you choose a larger plan. Your data and documents stay, and plan prices are in the pricing page.
Didn't find an answer?
Oskar, our AI assistant, will answer your questions about Zaksio. He is at hand on every page: click the robot in the bottom right corner or the button below.
Manage smarter. Grow faster.
You can start with one company and a few invoices.
- Free, no card required
- Free Basic plan with no time limit