The BATS model is a time series model for series exhibiting multiple seasonalities. It is a generalization of the traditional seasonal innovations models.

The BATS model was introduced by De Livera, Hyndman & Snyder (2011, JASA). "BATS" is an acronym denoting its salient features:

The BATS model is related to the TBATS model. It can be fitted using the bats() command in the forecast package for R.