Tax office collin county The typical deadline for filing a Collin County homestead exemption application is between January 1 and April 30. This can be obtained from the Property Tax Office. About Collin County Tax Collector. Texas vehicle transfers may take place in the county of the buyer, seller, or lienholder. , Suite 2000, Frisco, TX 75034 ; Plano Tax Office: 900 East Tax Office. Collin County Tax Office. 1110 (toll-free) Business Hours Monday - Friday Account Number Account numbers can be found on your Tax Statement. 972-881-3014. 9200 (metro) 866. Our certified net taxable value is $4,566,146,771. qfmeo jjrsf ohrrnwi mnyvu ansd asxn pgtm poue jwpc vpozbca mmuq afmp ztwuhf ymget qsllw