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Tax Topic 303: common filing errors

Topic 303 lists filing errors that can cause problems, such as missing or incorrect identifying information, arithmetic and unsigned returns.

Sources checked 2026-09-30
Open the official IRS refund page

What to do next

Compare the notice with your submitted return. Correct a return through the process the IRS specifies rather than filing a duplicate original.

Read the full account context

Use the whole message or transcript and any IRS notice. A single phrase or code cannot establish every account issue. An ordinary chart gives a planning example; the official tracker provides personalized refund information.

Questions you might have

Should I send a second original return?

Follow the IRS notice. A duplicate filing can complicate processing.

How often should I check?

The IRS normally updates refund information once a day, overnight. One daily check is enough.

When should I contact the IRS?

IRS guidance says to contact them after 21 days from e-filing, six weeks from mailing a return, or when the tracker tells you to call.

Does this site access my tax account?

No. We explain public guidance and calculate date examples. Only the official tracker can show your account status.

Source for this guide

Retrieved 2026-09-30. Planning choices are explained separately.