The board of the Tasmanian Farmers and Graziers Association board voted in November to rejoin the National Farmers Federation.

TFGA chief executive Peter Skillern said the move was to ensure Tasmanian agriculture had a voice on the national stage.

"For us to decide to go back to the NFF will allow us to work more collaboratively on national matters that impact Tasmanian farmers," he said.

The TFGA voted to leave the NFF in 2016.

Mr Skillern said it would not have an impact on the TFGA's advocacy work, with an agreement with the NFF that state matters would remain with the TFGA.

However, matters that impact Tasmanian farmers from a national perspective will be dealt with in a partnership between the TFGA and the NFF representatives.

The National Farmers' Federation (NFF) is the peak national body representing farmers and, more broadly, agriculture across Australia.

It is one of Australia's foremost and respected advocacy organisations. It was established in 1979.

Mr Skillern said the impacts of COVID-19, such as the impact of freight, logistics and commodity prices, had impacted farmers across the country, and the response to the crisis required collaboration to resolve.

"It will help to future proof our advocacy work in the future," he said.

He said the TFGA had worked with the NFF from time to time on particular issues, but that partnership would now strengthen.