About his childhood and youth we know very little. The family and its inclusion in a rich monastery indicate an origin from the lower nobility. He attended the Latin school at Odense Slagelse and then became a monk at St. John Monastery in Antvorskov in Slagelse. In November 1516, he came to the University of Rostock, where he first bachelor's degree and master's finally 1519 was 1517 to study. In 1520 he is mentioned as Dominus, pointing to his ordination. 1521, he studied at Louvain and shortly thereafter in Wittenberg, where he personally met Martin Luther and the Lutheran doctrine recorded. In 1525 he came back to the Antvorskover monastery, but was referenced after the announcement of his reformist attitude to Viborg in Jutland.
Since it was his conviction did not give up his life no longer safe, he asked where citizens for protection. This took him in and made him first in the cemetery and later preach in the Franciscan church. Also Vesper services he had with a song in their native language. Gradually, many citizens and some members of the cathedral chapter and the clergy joined him. The bishop could not align against him.
In Viborg a printing press was a coming from Stuttgart printer set up, with the Tausen made reformatory writings and were developed in the country, including translations of Martin Luther's writings. Thus came the Reformation of Viborg in the other towns of Jutland.
Meanwhile, thousands went to Copenhagen, where he preached at the request of the king, and had great popularity. On the Herrntag 1530 21 Lutheran preachers who submitted a Reformation document which contains the so-called Copenhagen 43 articles already published. The Danish bishops had hoped to see this colloquy in which the Franciscan Nicholas of Herborn should argue with thousands, a clarification. But the preachers insisted on discussing the issues of faith in their native language.
The recess from July 14, 1530 approved the sermon after the Holy Scriptures. For many he was too conservative, they wanted to take radical measures against the old church and its customs. Thousands now translated the Pentateuch into Danish, created a Piety and Liturgy. On the development of church order and the Reformation of the University of Copenhagen in 1537, he was involved, he was active in Roskilde. 1542 consecrated him bishop of Ripen Johannes Bugenhagen. Here he worked 20 years as a preacher and writer. Before Ribe Cathedral you will find his image. In Viborg, a monument was established in 2004 to mark the 475th anniversary of the Reformation unveiled in honor of Hans Tausen. The modern sculpture was created by the Danish artist Bjørn Nørgaard.