IRS Letters and Forms
Notice code 300-499

Notice code 300-499 — International only

What this IRS notice code means, and what to check before you reply.

What to do next

Start with these steps before you reply.

300-499

Read the notice carefully and note any deadline. Gather returns, notices, and payment records. Book a free strategy session before responding if the amount is large, unclear, or collection language appears.

What the IRS language says

International only

What it usually means

300-499 is in our IR Manual catalog. Official wording is dense — we translate it for business owners and individuals and map realistic next steps.

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