A look at the new fines that come in on September 28 for breaching the ruleson self-isolating.
The new action also includes a one-time £500 grant for low-income families and fines for employers punishing employers for self-isolation requests.
It comes as PM Boris Johnson considers tightening restrictions after a surge in cases. On Saturday, 4,422 cases were reported with 27 deaths.
The chief medical officers for England, Scotland, Wales and Northern Ireland recommended all four nations move up to COVID-19 alert "Level 4" - an epidemic is in general circulation; transmission is high or rising exponentially.
Fines start at £1,000 and increase to £10,000 for repeated offenders and "most serious offenses". Until now, counseling for self-isolation has been the only guideline.
A Number 10 spokesperson said: "No-one underestimates the challenges the new measures will pose to many individuals and businesses".
Summary: What are the new rules?
But he warned that while the test system was "rarely serviceable" it was not a "silver bullet". The new rule means that if you are infected with the virus or are requested by the NHS Test and Trace, you are legally obligated to do so.
Those who attract higher fines are described as those who prevent others from self-isolating, such as an employer who insists that an employee member come to work in violation of an order.
At the moment, anyone showing symptoms or testing positive is asked to self-isolate for 10 days while those who live with someone who either has symptoms or tests positive must self-isolate for 14 days.
The prime minister is anxious that existing guidelines are frequently being flouted - and he has actually been irritated that they are not constantly efficiently imposed.
The Government has already imposed a host of local lockdown stipulations on large stretches of England, including the North East, the majority of Lancashire, and parts of the Midlands, as part of attempts to control outbreaks.
But this iron fist is framed in a velour glove.
Starting Oct. 12, the government will offer payments of 500 pounds to low-income residents who must self-isolate and can't work from home.
But compliance isn't the only issue.
New legal obligations require self-quarantine if people test positive for coronavirus from September 28th or are tracked by close contact.
This will include the people who have been told to self-isolate themselves after coming in contact with someone who has been infected by the virus.
There are around four million people who receive the qualifying benefits in England who may be eligible for the payment.
The one-off payment of ₤ 500 is above both statutory ill pay of ₤ 95.85 each week and a previously-announced extra award of ₤ 182 for those informed to self-isolate in greatest danger locations of intervention.
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