People living in Wiltshire will pay an average £2 extra a month council tax from April to provide more than 40 extra officers for the force.
The Police and Crime Panel voted for the increase at Monkton Park in Chippenham.
Years of funding cuts from central government have affected forces across the country.
According to Wiltshire and Swindon's Police and Crime Commissioner Angus Macpherson, they receive the fourth lowest funding per head in England and Wales.
The council tax increase, known as the policing precept, will provide more than £6 million extra a year.
It will go towards 41 extra police officers alongside two dedicated teams to tackle cyber-crimes, focusing on online fraud and child sexual exploitation.
Half a million pounds will be used to boost crime prevention, targeting those who are vulnerable and at risk of committing crime in the future.
Nearly 70% of people who responded to a public consultation supported the increase.
From April, the average band D property will now contribute £17.19 to local policing as opposed to the current charge of £15.19.
Some of the additional officers will be put into community policing teams to enable people to see more of their local police.