DVLA data shows Belfast has the highest tax evasion rate in the UK with a total of 78,501 enforcements made throughout the whole of 2019. Birmingham saw the second-highest evasion rate with 61,531 offences recorded over 12 months.
These two cities had evasion figures almost double other regions with Glasgow the next highest area with 34,375 evaders.
Manchester also broke 34,000 tax evaders in 2019 while Sheffield and South London were just below.
Other high offending regions include Coventry, Bristol and Peterborough as more than 590,000 enforcement actions were taken across just 20 UK regions.
Doncaster rounded out the top 20 but still saw over 17,800 enforcement actions taken by staff in 2019.
READ MORE: DVLA will be clamping down on car tax evaders today
The agency said officials travelled across the nation with special automatic number plate recognition (ANPR) cameras to help identify and stop untaxed vehicles.
Department for Transport data released in November revealed overall car tax evasion had reduced by 0.2 percent.
The number of vehicles without car tax was 1.8 percent in 2017 but this was cut further to 1.6 percent by 2019.
The DfT predicts this equates to around 634,000 unlicensed vehicles on the road in a reduction from the 755,000 in 2017.
DfT analysis has revealed car tax evasion could cost them up to £94million in potential revenues.
DVLA’s Chief Executive, Julie Lennard, said: “The number of untaxed vehicles on the road is falling, but we are determined to reduce this even further.
“We operate a range of measures to make vehicle tax easy to pay and hard to avoid, so there really is no excuse if you fail to tax your vehicle.
“While the vast majority of motorists do the right thing and tax correctly, this campaign highlights the real consequences that motorists face if they don’t tax their vehicles.”
DVLA officials advertise which cities they are clamping down ion as part of their campaign through their social media pages.
Over the past couple of weeks, DVLA staff have visited Birmingham, Peterborough and Coventry which were three areas found to be among the highest offending regions.
RAC spokesman Simon Williams said: “While the vast majority of motorists abide by the law and tax their vehicles correctly, high-profile enforcement campaigns like this are needed to make sure the consequences of not doing so are fully understood.
“This DVLA campaign gives a very clear warning of the action that will be taken on untaxed vehicles. Having your vehicle clamped is expensive and inconvenient so it’s far simpler to make sure you tax it.”