10 common mistakes made by taxpayers who self-prepare their returns

1. Incorrect Social Security numbers: This can result in delayed processing and incorrect tax credits.

2. Mismatched names and addresses: This can cause problems with mailing correspondence and matching with government records.

3. Missing or incorrect forms: Failing to include required forms can result in incomplete returns and potential fines.

4. Miscalculating deductions and credits: This can result in underpayment or overpayment of taxes.