The dramatic rise in case numbers comes on top of another grim milestone as the state reported a record 22 lives lost in the 24 hours to 8pm on Wednesday.

These include 13 men and nine women with one person in their 60s, eight in their 70s, seven in their 80s, five in their 90s, and one person over 100.

And the number of people in hospital continues to rise, with 2383 people admitted and 182 in intensive care.

NSW Health cautioned that some of the daily case total included people reporting positive RATs on multiple days and possible follow-up positive PCR tests.

The number includes 61,387 positive RAT results covering the period since January 1, including 50,729 in the last seven days, as well as 30,877 PCR tests.

The total number of cases in NSW since the start of the pandemic stands at 566,164.

Earlier on Thursday, Customer Service and Digital Minister Victor Dominello said 82,000 positive RAT results from tests taken since January 1 had been uploaded to the Service NSW app or website.

He said about two-thirds of that figure was from tests conducted in the past week, while the remaining were from January 1.

And while there was a sudden surge in reporting self-test results via the government app and website, Mr Dominello said the new system was working well.

"So far, so good. We received feedback and the feedback scores are 96 per cent thumbs up. The system is working and it's holding onto the load," Mr Dominello told ABC news.

The reporting system for positive RAT results went live on Wednesday morning and while the requirement only became mandatory on the day, NSW residents were asked to add tests taken since the start of the year.

From January 19, the government will begin imposing a $1000 fine on anyone who does not report a positive RAT result.

"It's almost going to be impossible in many ways to enforce," Mr Dominello told Nine Network.

"But the majority of the states and territories in the country have gone down the path of issuing a fine or putting a fine in place - Tasmania, South Australia, Northern Territory, ACT - and some have chosen the other path of just saying 'Please do it.'"

Mr Dominello said registering a test result was mainly about connecting infected people with any health care need they might need or federal government financial assistance.

Prior to the new RAT reporting regime, the state opposition had warned authorities were "flying blind" without an accurate picture of the spread of the virus in the community.

Finding a RAT remains a challenge for many, until more supply gets into the system.

Premier Dominic Perrottet has said the government is considering a voucher-style system to distribute the tests.

Some 21.6 per cent of people aged 16 and over have received their third vaccine dose, while 93.7 per cent have received their second.

Australian Associated Press