A California state tax lien was filed in error against me in XX/XX/XXXX and recorded in XXXX County for a total amount of {$2500.00}. The Ca FTB claimed I never filed taxes for tax years XX/XX/XXXX and XX/XX/XXXX and began sending notices to an adress I DID NOT LIVE AT NOR EVER LIVED AT so I had no way of knowing about the proposed lien nor was i given a fair opportunity to respond to and clear up the proposed lien by simply refiling my tax returns for those two years. I only learned of the liens ( XXXX In XXXX XXXX County, Ca and XXXX in XXXX County, Ca ) after personally checking my credit reports from all XXXX bureaus after being denied credit XX/XX/XXXX. I began contacting all XXXX credit bureaus shortly thereafter and after sending indisputable proof the liens were filed in error XXXX removed both tax liens, XXXX XXXX removed both tax liens ( After a long, drawn out brutal struggle ) and Equifax removed the XXXX XXXX County filed lien. I owed very minimal amounts for XX/XX/XXXX and XX/XX/XXXX ( Approx {$130.00} total which i sent money orders for both amounts on time during those tax years ). After refiling tax years XX/XX/XXXX & XX/XX/XXXX the Ca XXXX waived all penalties and interest and i was left to pay a very small recalculation for tax year XXXX of {$35.00} because i calculated wrong during my addition/subtraction of tax owed. The {$2500.00} was tax i owed for both years but i had sufficient monies withheld to cover both. I have submitted to Equifax by fax 1. Original FTB Notice of intent to file state tax lien which clearly shows the WRONG ADDRESS so i NEVER received ANY NOTICES. 2. An original copy of my XX/XX/XXXX XXXX which also clearly displays my correct XX/XX/XXXX home mailing address. 3. Original copies of my XXXX & XXXX Ca state income tax returns showing amounts owed. 4. A copy of my FTB payment history which shows i paid a total of {$35.00} for tax year XX/XX/XXXX and shows i did NOT owe anything for tax year XX/XX/XXXX. I have disputed this information at least 5-6 times and Equifax refuses to inform me how they conducted their investigation and states it is in fact a correct filing whereas the Ca state FTB even stated they were in error but since it was already filed its part of public record. This lien filed in error has prevented me from obtaining credit and is the only black mark on an otherwise perfect credit report. After much researching I have found Equifax has engaged in unfair and illegal practices regarding investigations into correcting consumer information.