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Here’s what happens if you file your taxes wrong in 2026 — and how to fix it

Filed your taxes wrong in 2026? Learn what types of mistakes could trigger delays, penalties or audits. Also discover how you can fix the errors fast.

How H&R Block's Experts Can Help You Avoid Common Filing Mistakes

H&R Block green square in background - /Emma Emerton. Tax filing mistakes can happen to anyone, even if you have a fairly ...