Tax filing is an important practice that every citizen must handle perfectly. The common mistakes reportedare spelling errors, numerical errors, unmatched entering of data, missing information and documents and so on. Tax filing errors could invite penalties from the IRS (Internal Revenue Service). The best solution is to transfer important documents into an electronic device or electronic storage spaces like the cloud or Google drive. Another practical option is to approach business process outsourcing companies that can handle such matters professionally and ensure that your returns are filed on time.