Swap ICX for SODA: Two Deadlines Before the ICON Blockchain Shuts Down

If you bought during the first big altcoin wave in 2018, there is a fair chance a block of ICX is sitting in your portfolio or in an old wallet. The token of the ICON blockchain was a top-30 coin back then, and that is exactly the sort of position nobody looks at again for years. With ICX that now gets expensive: the ICON Foundation has announced the end of the chain, and there is a date after which a forgotten holding can no longer be rescued.

In German there is next to nothing to be found on this. On 17 August 2026 we searched German-language news sources for four different phrasings, using proper nouns and using generic terms, and got not a single hit on this process. A German holder looking for the deadline will find English blog posts from the Foundation and help pages from exchanges. This article sets out what is actually documented, what you have to check yourself, and where the matter can turn awkward for tax.

The ICON Blockchain Is Shutting Down: A Layer 1 Becomes a Read-Only Archive

ICON launched in 2017 as its own layer-1 blockchain with the aim of connecting other chains to one another. In its closing announcement the Foundation itself names the technical standards that came out of it, among them the transfer protocol BTP and the cross-network call interface xCall. Nine years on it concludes that a chain of its own no longer serves the purpose, and moves the project onto a different stack called SODAX, which works as an execution and liquidity layer across more than 18 networks.

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