TaxTrack guide · Updated September 24, 2026

My S corporation did not file, but I filed my personal returns. What happens?

Short answer: The S corporation still owes its SC1120S for each year, which SCDOR says is due every year regardless of income, plus its license fees. Whether the personal returns need changing depends on whether they included the S corporation income: if they did, the owner side may already be settled; if not, those returns usually need amending once the S corporation figures are done.

This is one of the more fixable situations, because half of the reporting may already be done. The work is confirming which half.

Two separate taxpayers

The S corporation files its own return and issues each owner a K-1. The owner reports that share on a personal return. So the corporation can be behind even when the owner is current, and the reverse.

What to check first

  1. Did your personal returns include the S corporation income? Look for the K-1 income on each year’s SC1040.
  2. If yes: the corporation still needs its SC1120S returns and license fees, and the K-1s it issues should match what you reported.
  3. If no: the S corporation returns come first, because they produce the K-1 figures; the personal returns usually need amending afterward.
TaxTrack owner questions including whether personal returns were filed and included the K-1 income
TaxTrack asks both questions and shows the corporation and the owner separately. Example inputs.

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Common questions

Does the S corporation still have to file if I reported the income personally?

Yes. SCDOR says the SC1120S is due every year regardless of income or business.

Will I have to amend my personal returns?

Only if they left out the S corporation income, or reported amounts that differ from the K-1s the corporation issues.

Sources

Sources checked September 24, 2026.

Not tax, legal or accounting advice. TaxTrack by ExpenseTrack gives estimates for general information and planning only. It estimates and organizes; it does not prepare or file returns. Actual tax, penalties, interest and reinstatement requirements are determined by the South Carolina Department of Revenue, county offices and the Secretary of State. Talk to a qualified CPA, enrolled agent or tax attorney about your situation.