Reference code 9024.
Math error on return. Balance due more than $50
Math error corrected
See how long people with this situation waited, from their transcripts.
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What it means.
The IRS manual's wording:
Math error on return. Balance due more than $50
What to do.
After the correction you owe more than $50. The notice shows how to pay; see the payment plan calculator.
Questions people ask
What does reference code 9024 mean?
The IRS changed an amount on the return. The IRS manual's own wording is quoted on this page.
What should I do about code 9024?
After the correction you owe more than $50. The notice shows how to pay; see the payment plan calculator.
Sources
Checked against these sources on October 30, 2026.