Inflation Basket — How Poland's GUS Measures Inflation

What is an inflation basket?

An inflation basket is a set of goods and services whose prices are regularly tracked by the Central Statistical Office of Poland (GUS) to calculate the Consumer Price Index (CPI). This is the basis for determining official inflation in Poland.

What's in the basket?

The GUS basket includes approximately 1,700 representatives — specific products and services grouped into 12 main categories:

1. Food and non-alcoholic beverages (~25% weight)
2. Housing, water, energy (~20%)
3. Transport (~10%)
4. Recreation and culture (~6%)
5. Restaurants and hotels (~6%)
6. Clothing and footwear (~4%)
7. Health (~5%)
8. Communications (~4%)
9. Education (~1%)
10. Alcoholic beverages and tobacco (~6%)
11. Furnishings and household equipment (~5%)
12. Miscellaneous goods and services (~8%)

How does GUS determine weights?

The weights of individual categories are based on household budget surveys — a questionnaire where thousands of Polish families report their expenses. GUS updates the weights annually.

This means the basket reflects average Polish spending — but not your personal expenses. If you spend 40% of your budget on housing (while GUS assumes 20%), your "personal inflation" may be higher than the official rate.

How are prices collected?

• GUS collects prices from approximately 35,000 sales points across Poland
• Prices are checked monthly (some weekly)
• Regular, promotional, and seasonal prices are included
• For several years, GUS has also been using scanner data from cash registers

Criticism of the inflation basket

The GUS basket is sometimes criticized for:

• Not reflecting personal inflation — everyone spends differently
• Substitution effect — when bread becomes expensive, people buy cheaper alternatives, but the basket doesn't catch this immediately
• Product quality — the same product may be better but more expensive (is this inflation?)
• Lack of real estate — the basket measures rents, not property prices

How Freenance can help

Freenance allows you to calculate your personal inflation — based on real expenses, not GUS averages. You can see how your cost of living changes year over year.

👉 Discover your personal inflation with Freenance — freenance.io