While the format of the four-team first grade competition has yet to be formalised, the date to finally start the season and the finishing point have now been locked in.

With seven teams in both the second grade and women's competitions, the grand final will be held on September 26.

It allows for one full round of matches and a three-week final series.

However Southern Inland rugby manager Jack Heffernan revealed the remaining first grade clubs, Waratahs, Wagga City, CSU and Tumut will be given options.

"I have to work with the first grade clubs for what their draw looks like," Heffernan said.

"Some clubs are asking for two rounds and some are asking for three rounds."

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"I'm going to give them both options early this week to have to finalised by the end of the week."

If teams played each other three times the top two sides would go directly to the grand final.

In a two-round competition, byes will be added to the draw to go with a longer finals format.

"With only four teams I think it makes sense they play each other three times then have a top two," Heffernan said.

With no third grade this year, second grade will be the first game of the day at 12.40pm, women's games will follow on at 2.05pm, with first grade at 3pm.

While having only four teams commit to first grade, Heffernan isn't worried on what impact it could have on the competition.

Instead he's extremely pleased to have a season going ahead.

"The clubs have been really good considering the circumstances they are all in," Heffernan said.

"There is a pretty big financial burden on them at the moment with the lack of sponsorship coming through for a lot of them.

"Hopefully getting out there and playing is a big step forward for them and we definitely appreciate their efforts."

The Albury-Wodonga Steamers last week opted to field second grade and women's teams this season.