WETHERSFIELD, Conn. (CBSNewYork/AP) — The Department of Motor Vehicles says that about 50,000 incorrect car tax bills could be mailed to drivers in Connecticut due to a computer error.

Commissioner Michael Bzdyra said Wednesday that some drivers may receive tax bills with the wrong tax town or other information on them.

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He said it’s the result of last summer’s computer upgrades. Data in the old computer system was compiled from customers over decades and could include old addresses that were never changed by people who moved.

“Every year, we have about 30,000 people who do not change their addresses and as a result, never get tax bills for taxes they’re liable for,” DMV spokesman Bill Seymour told WCBS 880’s Fran Schneidau.

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Officials said people who receive a tax bill from a municipality in which they didn’t live or keep a vehicle, as of Oct. 1, 2015, must contact the local assessor to request a transfer to the correct town or city.

Seymour said computer break-downs persist at the DMV, but Microsoft is now on board, Schneidau reported. He also said wait times at DMV offices are now about an hour and a half, down from about three hours last week.

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