The Northern Territory Government has announced a $6 million plan to roll out a Territory-wide banned drinker register by next July.

The ban is part of a five-point plan aimed at reducing the estimated $642 million-per-year cost of alcohol-related harm in the Territory.

The new laws will give courts the power to ban repeat problem drinkers from consuming or buying alcohol for up to 12 months.

The identification of all problem drinkers will be stored in an online database linked to all takeaway liquor outlets.

This means every time anyone wants to buy alcohol in the Territory their identification will be scanned.

If they are on the register the purchase will be declined.

Alcohol Policy Minister Delia Lawrie says the inconvenience is a small price to pay to reduce the number of people being taken into protective custody for problem drinking.

The new laws will allow police to ban violent problem drinkers for 48 hours from the Darwin and Palmerston CBDs and the waterfront precinct.

Four and five-litre wine casks will also be banned.