Barnet council has warned residents that from March 1 they must all recycle.
All of the London borough's 113,000 houses will be required to place glass bottles, jars, tins, cans, paper and magazines in a black box for recycling instead of refuse bins.
In a statement on its website, the council said: "There is no excuse for residents not doing their bit."
In reminding its residents of the looming d-day for dumping, the council was keen to point out that recycling saved money.
Barnet cabinet member for environment Matthew Offord said: "The message is plain - recycling is not only good for the environment but helps keep costs down for council tax payers. By recycling, residents can greatly reduce the amount of waste sent to landfill. Not only is disposing of waste expensive now, but costs are soaring and suitable sites are scarce."
Offord added that if the borough met its 2005/6 target of recycling 30% of waste, it would receive a grant from the Government that could be used to minimise council tax increases.