App links
Three Polish tax regimes, side by side
See which 2026 tax form actually leaves the most in your pocket before you commit to one.
JDG Tax Optimizer Poland 2026 helps Polish sole proprietors compare the progressive scale, 19% linear tax and registered lump-sum tax on the same revenue, so the cheapest regime is obvious.
Quick facts
- Pricing
- Free to download, with a one-time Premium purchase — no subscription and no auto-renewal.
- Platforms
- iPhone, iPad
- Best for
- Polish sole proprietors on JDG, B2B contractors and people weighing whether to leave employment for self-employment.
- Availability
- App Store ID 6762534711
Enter monthly revenue, expenses and your ZUS phase, and the app returns monthly and annual net income for all three regimes with the 2026 health contribution and solidarity tax where they apply.
Launch kit
Kalkulator JDG Optimizer 2026 links, release notes, and shipping details
This section keeps the practical launch information in one place so the page can work as a product landing page, support hub, and handoff point for future catalog growth.
Launch details
- Pricing
- Free to download, with a one-time Premium purchase — no subscription and no auto-renewal.
- Platforms
- iPhone, iPad
- Current version
- 1.1
- Last updated
- May 1, 2026
- Category
- Tax and income tool
- App Store ID
- 6762534711
Latest release
Refreshed for the 2026 rates
This release updates the scale, linear and lump-sum thresholds, the 2026 ZUS amounts and health-contribution logic, and the solidarity tax handling above the 1,000,000 PLN threshold.
What it helps with
What Kalkulator JDG Optimizer 2026 helps you do
This page is designed to explain the app clearly, show how the workflow fits together, and help the right user decide quickly whether the product is a fit.
Enter monthly revenue, expenses and your ZUS phase, and the app returns monthly and annual net income for all three regimes with the 2026 health contribution and solidarity tax where they apply.
Key signals
3 Tax regimes compared
2026 Rates and thresholds
ZUS Phase-aware tracker
One-time Premium, no subscription
- All data stays on your device, no account needed
- Built on the 2026 scale, linear and lump-sum rules
- Tracks ZUS phases and warns as benefits expire
- Premium is a one-off purchase, never a subscription
Product screens
Kalkulator JDG Optimizer 2026 in use
Step by step
How Kalkulator JDG Optimizer 2026 fits into the workflow
Enter revenue, expenses and ZUS phase
Give the app your monthly numbers and whether you are on Ulga na Start, Preferential or Standard ZUS.
Compare all three regimes at once
See monthly and annual net income for the scale, 19% linear and registered lump-sum tax side by side.
Read the breakdown and decide
Drill into PIT, health contribution, ZUS and solidarity tax for each regime before choosing your 2026 tax form.
Feature detail
Why teams choose Kalkulator JDG Optimizer 2026
Regime comparison
All three Polish tax forms on one screen
The core of the app puts the progressive scale, linear tax and lump-sum tax against the same revenue so the most efficient choice stops being a hunch.
- Monthly and annual net income for each regime
- Full PIT, health, ZUS and solidarity tax breakdowns
- 2026 thresholds: 12%/32% scale, 19% linear, 2-17% lump sum
ZUS and employment
Know where you stand on contributions and B2B
Contributions change as your ZUS phase ends, and a B2B move only pays off above a certain point — the app makes both visible.
- ZUS Tracker for Ulga na Start, Preferential and Standard with expiry warnings
- B2B vs UoP comparison to test leaving employment for contracting
- 2026 ZUS figures: Preferential 456.18 PLN, Standard 1,926.76 PLN per month
Premium planning
Plan reserves and reliefs, ad-free
A one-time Premium unlock turns the comparison into a planning toolkit and removes ads while you model scenarios.
- Monthly and annual Reserve plan for PIT, health and ZUS
- PIT-0 wizard covering family 4+, return relief and senior relief
- Full PKWiU database to look up lump-sum rates by activity
Recent updates
What has changed recently in Kalkulator JDG Optimizer 2026
A lightweight release history helps these app pages act like living product documents instead of frozen launch announcements.
1.1
Refreshed for the 2026 rates
This release updates the scale, linear and lump-sum thresholds, the 2026 ZUS amounts and health-contribution logic, and the solidarity tax handling above the 1,000,000 PLN threshold.
Best fit
Who Kalkulator JDG Optimizer 2026 is built for
New sole proprietors
For people opening a JDG who must pick a tax form and want to start on the right one.
B2B contractors
For contractors comparing B2B against employment, and revisiting their regime each year.
Career switchers
For employees weighing whether leaving a UoP for contracting actually pays off after tax and ZUS.
Questions
Questions people ask before downloading Kalkulator JDG Optimizer 2026
Which tax regimes does it compare?
It compares the progressive scale, the 19% linear tax and the registered lump-sum tax, each with PIT, health, ZUS and solidarity tax where applicable.
Is this tax advice?
No. The calculator is informational only. Consult a qualified Polish tax adviser before choosing a taxation form.
Is Premium a subscription?
No. Premium is a one-time purchase that unlocks the reserve calculator, PIT-0 wizard, full PKWiU database, annual reserve plan and ad-free use.
Where is my data stored?
Everything stays on your device. No account or registration is required.
Beyond the app
Need something more tailored than Kalkulator JDG Optimizer 2026?
If you are an accountant or advisory firm running these comparisons for many clients, I can build a tailored optimiser around your data, your rule interpretations and your reporting — far beyond a single-user calculator.
- Multi-client regime comparison and what-if modelling
- Custom rule sets, reliefs and ZUS phase tracking
- Branded reports and exports for client meetings
Bigger workflow
If this app opens up a bigger problem
The app may solve a concrete job immediately. If it exposes a larger operational, web, or content problem behind it, these are the closest practical routes.
Operational systems
If the workflow behind the app reveals manual steps, approval layers, tool sprawl, or operational debt, this is where it becomes a real system.
Web platforms
If this direction points toward a portal, stronger web layer, SEO surface area, or client-facing interface, this is the closest next route.
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Kalkulator JDG Optimizer 2026
Download Kalkulator JDG Optimizer 2026, then extend the workflow if your team needs more.
Start with the shipping app when it solves the core job. If you later need approvals, reporting, portals, or a more specialized internal workflow, that can become a custom build.