Deputy Premier John Barilaro said eligible households can claim up to $500 and small businesses up to $1000 to help offset the cost of mouse baits, traps and cleaning materials bought since February.

"These rodents haven't just impacted farmers and crops, they have also been a scourge on homes and businesses right across the regions," he said in a statement on Monday.

"You can only claim once, so I encourage residents and small business owners who have spent close to the maximum amount available to visit the Service NSW website today."

Agriculture Minister Adam Marshall said primary producers who lived where they worked could claim a single rebate of up to $1000.

"As we draw closer to the spring harvest ... this rebate will help them to also safeguard their homes," he said.

By the end of the month, farmers will also be able to claim a 50 per cent rebate on zinc phosphide based bait, to a maximum of $10,000, through the Rural Assistance Authority.

Eligible farms can make a claim for the household or small business rebate via the Service NSW website, where they can upload receipts for mouse bait, trap and cleaning purchases dating back to February.

Australian Associated Press