What are the common mistakes made on tax returns?

Common mistakes made on tax returns can lead to delays in processing and potential issues with the Connecticut Department of Revenue Services. One frequent error is incorrect personal information such as names, Social Security numbers, or addresses. It is essential that taxpayers double-check these details, as they must match the official records held by the Social Security Administration. Another common mistake involves miscalculating income or deductions. Taxpayers should accurately report all sources of income and be careful when claiming deductions or credits. Omitting information, either purposely or inadvertently, will lead to complications. Failing to sign and date the return is also a frequent oversight. An unsigned tax return is considered invalid and may delay processing. Additionally, not keeping proper documentation for claims can cause issues if the return is later questioned. Taxpayers should maintain records for at least three years after filing. Lastly, neglecting to review and understand the latest tax laws can lead to errors. Connecticut's tax regulations can change, so it is advisable for taxpayers to stay informed. For a comprehensive overview of income tax filing and common mistakes, visiting the Connecticut Department of Revenue Services’ website can be helpful.