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Practical knowledge about starting and running a business in Poland — taxes, social security (ZUS), VAT and entrepreneur obligations, explained clearly by the TaxProfis accounting office.

Running a business
Cash-flow trouble in a sole proprietorship in 2026 — deferral, instalments and remission of taxes and ZUS contributions

Deferral, instalments or remission are three lawful ways of getting through a cash-flow squeeze without mounting interest and enforcement. The conditions at the tax office and at ZUS differ, however, and the most common mistake is filing for deferral only after the payment deadline has passed.

· 6 min Read
Running a business
Import of services in a sole proprietorship in 2026 — advertising, licences and subscriptions from foreign providers

An invoice marked “reverse charge” does not settle the matter — in most cases you account for VAT in Poland. Find out when an import of services arises, why a VAT-exempt business must still register for VAT-UE, and how the VAT-9M return works.

· 6 min Read
Running a business
Your first employee in a Polish sole proprietorship in 2026 — obligations, deadlines and the real cost of a job

A sole proprietorship may hire without changing its legal form — but the first employee brings a full set of obligations towards ZUS, the tax office and the labour inspectorate. We explain the deadlines, the forms and the full cost of a job in 2026.

· 5 min Read
Running a business
Running your business from home in 2026 — which expenses you can deduct and when a higher property tax applies

A home office is the cheapest option for a sole trader, but it comes with three traps: legal title in the CEIDG, the cost proportion and property tax. We explain what you can deduct, how to document the proportion and when the municipality will apply the higher rate.

· 5 min Read
Running a business
KSeF is down — how to issue an invoice in offline and emergency mode in 2026

No internet, planned maintenance or an announced KSeF failure — each of these situations comes with a different deadline for submitting the invoice. We explain the four modes for issuing invoices outside the system and show how to prepare your business in advance.

· 5 min Read
Running a business
Cash-basis PIT for sole traders in 2026 — a higher PLN 2 million threshold and tax due only after payment

From 2026 many more sole traders can use cash-basis PIT — the revenue threshold has risen to PLN 2 million. We explain the rules of the cash method, the two-year limit and the notification deadline.

· 5 min Read
Running a business
The SME scheme in 2026 — VAT exemption in other EU countries for sole proprietorships

Selling to customers in the European Union? The SME scheme lets you use the VAT exemption in other Member States on the basis of a single notification filed in Poland. We explain the conditions, thresholds and obligations.

· 5 min Read
Running a business
One-time depreciation in a sole proprietorship in 2026 — the PLN 213,000, PLN 100,000 and up-to-PLN 10,000 limits

In 2026 an entrepreneur can book the purchase of a fixed asset as a cost on a one-time basis — up to PLN 213,000. We explain the three one-time depreciation mechanisms, their limits and conditions.

· 5 min Read
Running a business
IP Box (5% PIT) in a sole proprietorship in 2026 — who can use the relief and how to settle it

The IP Box relief allows income from qualified intellectual property rights — most often the copyright to a computer program — to be taxed at a preferential 5% rate. In 2026 it applies on the existing terms, but the tax authorities scrutinise the research-and-development nature of the work more closely.

· 5 min Read
Running a business
The solidarity levy in a single-person business in 2026 — who pays the extra 4% and how to settle it

The solidarity levy is an additional 4% on income surplus above one million zloty. We explain who it applies to in a single-person business, how to determine the base and by when to file DSF-1.

· 5 min Read
Running a business
Mały ZUS Plus (reduced ZUS contributions) in a sole proprietorship in 2026 — new period-counting rules, conditions and amounts

Mały ZUS Plus lets you pay social security contributions based on income rather than on a fixed high base. From 2026 the way the periods are counted has been simplified — 36 months in each 60-month cycle, regardless of prior use.

· 4 min Read
Running a business
PKD 2025 in a sole proprietorship — new codes and the obligation to update by the end of 2026

The new PKD 2025 classification has applied since 1 January 2025. Entrepreneurs who were already active have until 31 December 2026 to transfer their codes — after that, an automated system does it for them, not always accurately.

· 3 min Read
Running a business
VAT-UE and intra-community transactions in a sole proprietorship in 2026 — when registration is required

Do you buy goods or sell services to partners from the European Union? Check when your sole proprietorship must register for VAT-UE — even if you use the VAT exemption — and how to correctly account for intra-community transactions in 2026.

· 6 min Read
Running a business
Flat-rate tax on recorded income in 2026 — limits, rates, and the new electronic record-keeping duty

Do you settle, or plan to settle, taxes under the flat-rate tax on recorded income? Check what revenue limit applies in 2026, which tax rates you'll use, and what the new electronic record-keeping duty changes.

· 6 min Read
Running a business
Business inspections in 2026 — shorter inspection time and new risk categories

Find out what the first deregulation package changes in the rules for inspecting a sole proprietorship (JDG) in Poland — shorter day limits, risk categories, and new elements in the inspection notice.

· 6 min Read
Running a business
Sickness benefit for sole proprietors (JDG) in Poland in 2026 — what you're allowed to do on sick leave after the rules changed on April 13

Since April 13, 2026, new rules apply to losing the right to sickness benefit — including for sole proprietors on sick leave. Find out when you can still lose the benefit, and which activities are now safe to perform.

· 6 min Read
Starting a business
Start-up relief (ulga na start) 2026 — is it worth suspending ZUS contributions for the first 6 months of business

Starting a sole proprietorship (JDG) in Poland and wondering whether the start-up relief is worth it? Find out who can use it, how to register, and why skipping social security contributions comes at a price.

· 6 min Read
Running a business
Bad-debt relief in a sole proprietorship in 2026 — how to recover VAT and PIT on unpaid invoices

The contractor didn't pay, but you've already remitted the tax? Bad-debt relief lets you recover VAT and PIT 90 days after the payment deadline. Check the conditions, deadlines and the debtor's obligations for 2026.

· 6 min Read
Running a business
Advance (prepayment) invoice in a sole proprietorship in 2026 — when to issue it, what it must contain and how to settle the final invoice

Receiving an advance payment before performing a service or delivering goods usually has to be documented with an advance invoice — with its own VAT deadlines and a different treatment in income tax.

· 6 min Read
Running a business
Winding up a sole proprietorship in 2026 — CEIDG, ZUS and taxes step by step

Closing a business is not a single application but a set of obligations at CEIDG, ZUS and the tax office with 7-day deadlines. See how to wind up your business in 2026.

· 6 min Read
Running a business
e-Doręczenia (electronic delivery) in a sole proprietorship in 2026 — who, from when, and how to set up the mailbox

Entrepreneurs registered in CEIDG by the end of 2024 must have an active e-Doręczenia address by 30 September 2026 at the latest. Find out who is obliged, what the deadlines are, and how to set up a company mailbox free of charge.

· 5 min Read
Running a business
Correction invoices in 2026 — new rules for corrections in KSeF and the end of correction notes

Since 2026, invoice errors can only be fixed with a correction invoice issued in KSeF — correction notes are gone. Find out when to issue a correction and in which period to settle it for VAT and income tax.

· 6 min Read
Running a business
Employment Contract and Sole Proprietorship in Poland in 2026 — Which ZUS Contributions Does an Employed Entrepreneur Pay

Do you run a sole proprietorship in Poland while also working under an employment contract? Find out how the overlap of insurance titles (zbieg tytułów) with ZUS is settled in 2026, when social security contributions from your business are voluntary, and which registration form to file and by when.

· 6 min Read
Running a business
ZUS Social Security Contributions for Sole Proprietors in Poland in 2026 — Full, Preferential and Income-Based Rates

In 2026 the base for full ZUS contributions for Polish sole proprietors increased. Find out how much social security contributions are under each option — full ZUS, preferential ZUS and Mały ZUS Plus — and which deadlines to watch.

· 6 min Read
Running a business
Electronic Tax Revenue and Expense Ledger (PKPiR) in 2026 — What the New Regulation Changes

A new Ministry of Finance regulation changes the rules for keeping the tax revenue and expense ledger (PKPiR). Find out who must switch to electronic record-keeping already in 2026, what the new form includes, and by when the ledger must be sent to the tax office.

· 6 min Read
Running a business
The split payment mechanism (mechanizm podzielonej płatności) in a sole proprietorship in 2026

Split payment is sometimes mandatory, and ignoring it carries sanctions. Find out when you must use split payment, what the VAT account involves and what benefits paying via MPP voluntarily provides.

· 7 min Read
Running a business
Changing the form of taxation in a sole proprietorship in 2026 — by when and how to report it

Tax scale, flat tax or lump-sum tax (ryczałt) — the form of taxation can be changed every year, but only within a specific deadline. Find out by when to submit the declaration in 2026, how to do it through CEIDG and what to consider before deciding.

· 6 min Read
Running a business
Tax-deductible costs (koszty uzyskania przychodu) in a sole proprietorship in 2026 — what you can deduct and how to document it

Costs determine the amount on which you pay tax. See which expenses you can deduct in 2026, what cannot be deducted, and how to document everything correctly.

· 6 min Read
Running a business
Passenger Car in a Sole Proprietorship in 2026 — New Depreciation Limits, Leasing, Costs and VAT

From 2026 the amount of car costs you can deduct depends on exhaust emissions. Check the new depreciation and leasing limits, the rules for cars acquired earlier, and the VAT deduction.

· 5 min Read
Running a business
Quarterly PIT advance payments in a sole proprietorship in 2026 — who can pay them and how it works

Instead of paying the PIT advance every month, some entrepreneurs can settle with the tax office only four times a year. Check who is entitled to this in 2026, what deadlines apply and what to keep in mind.

· 6 min Read
Running a business
Suspending a sole proprietorship (jednoosobowa działalność gospodarcza) in Poland in 2026 — when, how and on what terms

A temporary break in your business does not have to mean closing it down. Find out who can suspend a sole proprietorship, for how long and how suspension affects ZUS contributions, VAT and income tax.

· 5 min Read
Running a business
Cash register in a sole proprietorship in 2026 — who must have one and from what threshold

Most firms selling to private individuals can initially use an exemption up to PLN 20,000 in turnover, but some industries must have a cash register from the very first sale. Learn how to calculate the limit, when the exemption expires, and how much the relief for buying an online cash register is.

· 5 min Read
Running a business
ZUS contribution holidays for sole proprietors in 2026 — how to skip your social contributions for one month

Once a year, an entrepreneur can legally avoid paying social contributions for a chosen month — without suspending the business. We explain what the contribution holidays are, who qualifies and how to file the RWS application on time.

· 6 min Read
Running a business
VAT exemption for sole proprietors in 2026: the new PLN 240,000 threshold

From 1 January 2026 the VAT exemption limit rose from PLN 200,000 to PLN 240,000. See who may not charge VAT, how to calculate the limit when starting mid-year, and what happens once you exceed it.

· 4 min Read
Starting a business
Unregistered business activity (działalność nierejestrowana) in 2026 — the new quarterly revenue limit and your obligations

As of 1 January 2026, the revenue limit for unregistered business activity is calculated quarterly and amounts to PLN 10,813.50. We explain who can use this form, what obligations apply and what happens when the threshold is exceeded.

· 5 min Read
Running a business
Health insurance contribution for sole proprietors in 2026 — how much you pay under each form of taxation

The health insurance contribution is today one of an entrepreneur's largest monthly expenses, and its size depends on the form of taxation. We show how much you pay in 2026 under the scale, flat tax and lump sum, and what to remember at annual settlement.

· 6 min Read
Starting a business
How to set up a sole proprietorship in 2026 — a step-by-step guide

Registering a business is now free and largely online — but the decisions made at the start, such as the form of taxation, VAT and PKD codes, affect your costs for years to come. We explain what to watch out for.

· 7 min Read
Running a business
ZUS at the start of your business: start relief, preferential ZUS and Mały ZUS Plus in 2026

A new entrepreneur does not have to pay the full ZUS right away. Three reliefs can lower contributions for up to three years — but each has its conditions and pitfalls. We organise the rules for 2026.

· 6 min Read