According to the Swiss Federal Department of Finance the additional protocol to the Double Tax Treaty (‘DTT’) between Belgium and Switzerland, that has been signed on April 10, 2014 has entered into force as of July 19, 2017 and will generally apply as from January 2018. In general terms, the protocol brings the current DTT, dating from 1978, up to date to promote investments and economic exchange in the bilateral relations between the countries.
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