Expired Banknotes

Czech currency banknotes have changed.  Not a lot but they are now slightly different.  The new notes look almost identical to the old notes except that the old banknotes have a thin silver security strip and it doesn't change colour under light.  The new banknotes have a thicker strip that changes from purple to green when tilted under light.

Good note on top; bad note below

This goes for the 100, 200, 500, 1000, 2000, and 5000 Kč banknotes.

The old banknotes were from 1995 to 1999 and at the end of June they became no longer valid.  I learned this the hard way when I went to pay for something in the shop and the cashier told me that the money wasn't any good.  Ugh!

The old banknotes can be exchanged at financial institutions and at offices of the Czech National Bank until 30 June 2024.  From 1 July 2024, you can only exchange the bills at offices of the Czech National Bank but I don't know how long they will allow old bills to be exchanged for new ones.

Update:  Apparently the 5000 Kč banknote is the exception.  For now, both versions of the banknote are still valid.  I've been here over 13 years and I have yet to see a 5000 Kč banknote.