Spanish newspaper El Mundo reports that the Red Devils manager has reached an agreement with the state on a one-year suspended sentence.
As part of the charge, Mourinho has also reportedly been fined a sum of €2 million (£1.8 million or $2.3 million).
The former Real Madrid manager was accused of skipping tax to the tune of €3.3m while he was in charge on Los Blancos.
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In June last year, Spanish authorities said Mourinho had under-declared image rights revenue for 2011 and 2012.
He will, however, not be serving any jail sentence because Spanish tax laws permit first-time offenders with less than two years sentence to be served on probation.
Meanwhile, this is not the first time that a big football personality has been accused of tax fraud in Spain.
Last year, Cristiano Ronaldo was also given a suspended jail term and a €18.8 million fine for evading tax.
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Barcelona counterpart Lionel Messi was also accused of the same crime by Spanish tax authorities and has also since been serving a suspended jail sentence.