From the IBT website. Our local is $250
How much will I pay in dues?
Teamsters Union dues are 2.5 times the hourly wage rate per month. For example, if you make $12 an hour, your dues would be $30 per month. However, if you make less than $11 an hour, then your dues rate is 2 times your hourly rate. And if you are a public sector employee, your dues rate is 2.25 times your hourly rate.
Also, some locals may charge initiation fees and these vary by location. Talk to a local union representative for details.