Podatek Giełdy - PIT-38 and PIT-ZG Tax Calculator for Stock Investors
Podatek Giełdy is an application for automatic capital gains tax calculation in Poland. Import reports from brokers (Interactive Brokers, XTB, Trading212, Revolut), calculate tax using the FIFO method with NBP exchange rates and generate PIT-38 and PIT-ZG declarations.
PIT-38 and PIT-ZG calculator for investors
Automatic tax calculation on capital gains. Import broker reports, calculations compliant with Polish law, ready declarations in minutes.
Already trusted by over 2,000+ investors in Poland
Problem
Investment tax filing is complex
Hundreds of transactions. Foreign brokers. Multiple currencies. FX rates. Manual work takes hours.
Excel chaos
Broker reports have hundreds of rows. Which transactions need reporting? How to convert currencies?
FIFO complexity
Matching buy and sell transactions. Tracking cost basis across years. NBP rate lookups.
Time investment
Manually processing 200 transactions, looking up NBP rates, calculating foreign tax credits takes days.
Expensive services
Tax advisors charge significant fees for investment tax filing. And you still need to prepare the data.
Inaccurate calculators
Other tools skip micro-transactions and automatic PIE rebalancing. The difference can be tens of PLN in tax — and you're the one responsible before the tax office.
Stock tax calculation shouldn't be stressful.
Let us handle the calculations — you focus on investing.
Solution
From chaos to ready declarations in 15 minutes
Instead of days in Excel, get complete tax documentation automatically.
15 minutes
instead of 20+ hours of manual work
Automated
NBP rate conversions
100% of transactions
included per Art. 30b — no micro-sells skipped
Full control
over every transaction
Compare fees
Check if your broker is the cheapest
What you get
Transaction summary
All transactions classified and calculated
PIT-38 data
Ready to submit via e-filing system
PIT-ZG data
Foreign income and tax credit calculations
Detailed breakdown
Full calculation transparency
How it works
How It Works
Simple process in 4 steps
Import broker reports
Upload CSV or Excel files with transactions from your broker.
System calculates
Algorithm classifies transactions, fetches NBP rates, calculates taxes.
Verify results
Review clear summaries with full control over data.
Export documents
Download PIT-38, PIT-ZG, and detailed transaction reports.
Tool
Check how much you pay in fees
Compare commissions and FX fees across the most popular brokers in Poland. See which broker is cheapest for your investing style.
| Broker | Commissions | FX Fee | Total |
|---|---|---|---|
| Interactive Brokers | 127 PLN | 42 PLN | 169 PLN/ year |
| XTB | 0 PLN | 189 PLN | 189 PLN/ year |
| Trading 212 | 0 PLN | 225 PLN | 225 PLN/ year |
Interactive Brokers
Commissions
127 PLN
FX Fee
42 PLN
Total
169 PLN
XTB
Commissions
0 PLN
FX Fee
189 PLN
Total
189 PLN
Trading 212
Commissions
0 PLN
FX Fee
225 PLN
Total
225 PLN
Example data for a 100,000 PLN portfolio, 50 trades/year on the US market. Actual costs depend on your portfolio.
Also compares crypto exchanges: Binance, Coinbase, Kraken & more
Compatibility
Supported Brokers & Instruments
We support major brokers used by Polish investors
Trading212
CSV
Interactive Brokers
CSV
XTB
CSV
Degiro
CSV
mBank eMakler
CSV, XLSX
Revolut
CSV
eToro
CSV, XLSX
Exante
CSV
Freedom24
CSV, XLSX
Robinhood
CSV
Binance
XLSX
Coinbase
CSV
Automatic format recognition • Data validation • Real-time NBP exchange rates
Knowledge base
Everything about stock tax calculation
Learn the rules for PIT-38, PIT-ZG and the specifics of different investment types
What is PIT-38?
PIT-38 is an annual tax declaration for individuals who earned income from the sale of securities, company shares, derivatives and cryptocurrency (virtual currencies).
The tax rate is 19% on income (revenue minus deductible costs). Filing deadline: by April 30 of the year following the tax year. After calculation, you can open a PIT-38 preview and save it as PDF.
Who needs to file PIT-38?
- Stock market investors (stocks, ETFs, bonds)
- Derivative instrument holders (options, contracts)
- Cryptocurrency traders
- Clients of Polish and foreign brokers
FIFO Method
When selling securities, the FIFO method (First In, First Out) applies — you sell the ones purchased earliest first.
NBP Exchange Rates
Foreign currency transactions are converted at the average NBP rate from the day preceding the transaction date (purchase or sale).
Deductible Costs
You can deduct: purchase price, brokerage commissions, transaction fees, currency conversion fees.
Loss Deduction
A loss from a given year can be deducted from income in the following 5 years, but no more than 50% of the loss in a single year.
Preview & PDF Export
After calculating your tax, you can open a preview of the PIT-38 form matching the official template. Save it as PDF with one click.
Our calculator automatically applies the FIFO method and converts NBP rates.
FAQ
Frequently asked questions
Answers to the most important questions about the service, calculations and security
How do calculations work?
How much does it cost?
When should I start?
Can I have multiple brokers?
Didn't find your answer? Contact us
Security and Transparency
Podatek Giełdy is a Polish fintech application. Learn how it works and how we protect your data.
What is Podatek Giełdy
Podatek Giełdy is a Polish fintech application that helps investors calculate capital gains taxes (PIT-38 and PIT-ZG). The application processes transaction data imported from stock brokers and cryptocurrency exchanges, automatically applying Polish tax regulations, NBP exchange rates, and the FIFO method.
Google Login
Podatek Giełdy offers optional Google Login (Google OAuth) as a convenient alternative to email login. We use it solely for secure user authentication.
- We retrieve basic Google profile data: email address, name (if available), and profile picture (if available) - solely for creating and managing your account
- We do not access your Gmail, contacts, Google Drive files, or any other Google data
- All financial data comes exclusively from files you upload yourself
- Detailed information about Google data processing is available in our Privacy Policy
Responsibility and Disclaimers
Podatek Giełdy is a software tool that assists with tax calculations. It does not constitute tax advisory services.
- •Users upload their own transaction files
- •Calculations are automated and require user verification
- •Users bear full responsibility for their tax returns
Review our legal documents:
From investor to investors
"I created this calculator out of my own frustration. Existing tools were inaccurate, complicated, or simply didn't support my brokers. After hours in Excel and several filing errors, I decided to build what I needed myself - and open it to other investors. And this is the end."
Yevhen
Individual investor & platform creator