According to both folklore and written records, the village was named after the squat leader Tas. According to Anonymus, the leader Tas "...at the request of the conquered people, set up a market place between the Nyr and the Tisza, which he gave his own name to the market place, which is still called Tasvásárhely." The village of Tass has indeed kept the name of Tas at this place.
Already around 1200 Nyírass was a more important settlement. The village was royal property. Since the reign of Stephen V, it had been the property of two Hungarian knights - Iteg and György. After their deaths without issue it was given to them as a gift by the Prince of Satu Mare. At that time it was uninhabited, but its church, built in honour of the Holy Virgin, was already standing. In the other part of the manor there lived Kuns, who sold their part of the manor to the castle-owner of Gimes, Paul the Hungarian, in 1322.
In 1416, Peter ÓlnodiCzudar, the king of Ólnodi, received the land from the king, so in the 15th century it belonged to the Czudar family. At the end of the 15th century, however, the Queen took possession of it, and after a long period of litigation, the Váradi family received most of it as a royal donation. 
In the 17th century the Serédys, the Palaticzes, also had a mansion here. At the end of the century, the Drugeth, Lónyay, Zichy and Esterházy families also owned parts of the settlement, which was called oppodium, or field town. At the beginning of the 18th century, the village was completely depopulated and its owners formed a communal estate.
In 1714, István Jósa settled Poles in the village, which then lost its status as a field town. In the middle of the 19th century, it had 23 noblemen and 1150 inhabitants. The village was destroyed by an earthquake in 1835. The manor of Köpetelke, whose owner is mentioned in the 1324 tassi border guard charter, was incorporated into its present boundaries.
The first records of the village's medieval church dedicated to Mary date back to 1299. A record from 1766 mentions a medieval church in the village, used by the Reformed. Its walls were cracked and the buttresses on the east and north sides were leaning down.
The church has retained its medieval character throughout. A tower was built in the 1880s in front of the south side façade. The 1974 restoration revealed two original Gothic windows and the pointed arch doorways on the west and north sides. 
The flat-ceilinged nave has a white-painted organ arch supported by simple carved wooden columns on the entrance left side. The central part has a lute motif dating from the 1960s. On the lower part of the pediment there is a simple 18th century painted and burnt woodwork with floral motifs in white, blue and brown.

Nyírtass, Reformed Church (4522 Nyírtass, Tass vezér köz 11. Hrsz.: 2) Restoration: -restoration of the choir and the painted plank ceiling under the choir, 
- Repair of plaster, complete wall painting, 
- replacement and finishing of the cladding (tile and brick), - reinforcement of the staircase of the church tower, 
- renovation of pews.