Twelve and a Half Million CustomersWide moat

PKO Bank Polski (PKO) — moat facet

One in three Poles banks here, which took a hundred and six years and cannot be bought.

PKO served 12 460 thousand customers at the end of 20251, in a country of some 37 million people.

Customers, year-end (thousands)11 120202111 666202211 911202312 133202412 4602025+2,8% a year in a country whose population is falling - share taken, not demographics
One Pole in three. Growth this steady in a shrinking population means every new customer came from a rival.

That is roughly one Pole in three, and it is the number every other advantage in this company rests on. A bank with a third of the population has the cheapest possible distribution for any new product, which is why PKO can put a car marketplace and a consumer-credit product in front of an audience it did not have to acquire.

The base is still compounding, slowly and reliably: 11 120 thousand in 2021, 11,666, 11,911, 12,133, then 12 4602 — about 300 thousand net new customers a year without a single acquisition. In the first half of 2026 the figure reached 12,6 million3.

The quality of the relationship is measurable too. PKO reported that it held the number two position among banks most recommended by retail customers in both the third and fourth quarters of 20254, which is a candid disclosure for a company that could simply have said it was large.

What the customer count does not do is confer pricing power. A Polish saver comparing deposit rates online has 29 banks to choose from, and the ones with fewer branches can afford to pay more.

Grade this on net customer additions. Three hundred thousand a year is a franchise quietly widening. Flat would mean PKO has stopped taking share in a market where deposits are still growing at 13%.

Moat trajectory: Widening

The base grew every year of the last five, and 12,6 million by mid-2026. In a shrinking population that is share taken from someone.

The number that tests this moat
Reported
Customers, and the direction
12 460 thousand, from 11 120 five years earlier

About one Pole in three. Growth of roughly 2,8% a year in a country whose population is falling means the base is taken from rivals rather than from demographics. 12,6 million by mid-2026. The year it stops rising is the year the franchise is fully built out.

Source: PKO Bank Polski S.A. Group Directors' Report for 2025, operating data ↗
⚠ Threats to the moat
⚠ THREAT 01
A Third of Poland Is Also a Ceiling
A bank that already has a third of the country grows only as fast as the country does.
References
  1. ReportedPKO served 12 460 thousand customers at the end of 2025, in a country of some 37 million people.
    PKO Bank Polski S.A. Group Directors' Report for 2025 - the customer base (12 460 thousand customers against 11 120 thousand five years earlier, 9 764 thousand current accounts, and more than 8,7 million active installations of the IKO mobile application) — FY2021-FY2025 · publ. 12 March 2026 · source ↗
  2. ReportedThe base is still compounding, slowly and reliably: 11 120 thousand in 2021, 11,666, 11,911, 12,133, then 12 460 — about 300 thousand net new customers a year without a single acquisition.
    PKO Bank Polski S.A. Group Directors' Report for 2025 - the customer base (12 460 thousand customers against 11 120 thousand five years earlier, 9 764 thousand current accounts, and more than 8,7 million active installations of the IKO mobile application) — FY2021-FY2025 · publ. 12 March 2026 · source ↗
  3. ReportedIn the first half of 2026 the figure reached 12,6 million.
    PKO Bank Polski S.A. Group Directors' Report for the six months ended 30 June 2026, published with reviewed financial statements (profit before tax of 8 319m złoty up 19,9%, income tax of 3 029m up 67,4%, net profit of 5 290m up 3,1%, return on equity of 19,3%, cost-to-income of 31,4%, interest margin of 4,47% against 4,91%, cost of risk of 0,29%, total assets past 608 448m, 12,6 million customers, common equity tier 1 of 15,55%, and a further 685m złoty of convertible-currency legal risk) — H1 2026 · publ. 13 August 2026 · source ↗
  4. ReportedPKO reported that it held the number two position among banks most recommended by retail customers in both the third and fourth quarters of 2025, which is a candid disclosure for a company that could simply have said it was large.
    PKO Bank Polski S.A. Group Directors' Report for 2025 - the customer base (12 460 thousand customers against 11 120 thousand five years earlier, 9 764 thousand current accounts, and more than 8,7 million active installations of the IKO mobile application) — FY2021-FY2025 · publ. 12 March 2026 · source ↗
Sources
Generated September 24, 2026