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Apply for EIN by Mail Guide

Mail Form SS-4 to IRS EIN Operation, Cincinnati OH 45999. Processing: 4-6 weeks. Slowest EIN method. Fax or phone recommended instead.

Mail Form SS-4 to: Internal Revenue Service, Attn: EIN Operation, Cincinnati, OH 45999. Processing takes 4-6 weeks. This is the slowest EIN method. We recommend fax (4-7 days) or phone (same day) instead. ein.so handles fax filing for $49.

Address

IRS Mailing Address for SS-4

Internal Revenue Service Attn: EIN Operation Cincinnati, OH 45999

International Mail Options

| Method | Cost | Delivery | |--------|------|----------| | USPS First Class Int'l | $1.50-3 | 7-21 days | | USPS Priority Int'l | $28-50 | 6-10 days | | FedEx | $40-80 | 3-5 days |

Add 4-6 weeks for IRS processing after delivery.

Comparison

Mail vs Other Methods

| Method | Speed | Cost | |--------|-------|------| | Online | Instant | Free | | Fax | 4-7 days | Free/$49 | | Phone | Same day | Free | | Mail | 4-6 weeks | Free |

Mail is 6-10x slower than every other method. Only use if you cannot fax or call.

When Mail Works

When to Use Mail

  • No fax or internet access
  • No ability to make international calls
  • Not in a hurry (6+ weeks OK)
  • Want physical paper trail

For everyone else: fax or ein.so ($49)

More: How to get EIN | SS-4 guide | EIN processing time

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Frequently Asked Questions

Where do I mail SS-4?

Internal Revenue Service, Attn: EIN Operation, Cincinnati, OH 45999. This is the only address for EIN applications by mail.

How long by mail?

4-6 weeks from when the IRS receives your form. This is the slowest method.

Is mail free?

Yes from the IRS. Your cost is postage only.

Can I track my application?

Use certified/tracked mail. The IRS does not provide tracking. Call 800-829-4933 after 6 weeks if no response.

Should I use mail?

Only as a last resort. Fax (4-7 days) and phone (same day) are much faster. ein.so handles fax for $49.

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