First: check your mailbox provider
USPS lets the mailbox company's own staff witness your signature over video, with no notary at all, and many virtual mailbox providers send you a link to a notary partner. Use that route first if you have it; it can decide which version of the form you get.12 Our step-by-step Form 1583 guide covers the form itself and the two IDs USPS requires.
Providers compared
| Service | One form (1 signer, 1 seal) | Second form or seal | Extra signer | Form 1583 specifics | ID and SSN |
|---|---|---|---|---|---|
| BlueNotary Featured partner | $25 | +$8 per stamp | +$5 | Lists PS-1583 among the documents it notarizes4 | Government ID front and back, last 4 of SSN, KBA or biometric check5 |
| Notarize (by Proof) | $25 | +$15 per seal | +$10 | Dedicated PS 1583 form page; partners with virtual mail providers7 | Physical photo ID; KBA needs SSN/ITIN and a US address, except a provider-set "Verification of Fact" 15833 |
| OneNotary | $25 ("one notary certificate") | +$10 per certificate | +$10 | Dedicated 1583 page and a business product for virtual mailboxes; says to sign in front of the notary8 | KBA plus photos of your driver's license, front and back9 |
| NotaryLive | $25 per session (25 pages) | No extra charge for seals | +$5 | Not stated on its pricing page | Photo ID plus KBA; a "Personal Verifier" option if KBA fails10 |
| NotaryCam | $25 per seal | $25 per additional seal | +$10 | Not stated | $79 fee if no signer has a US SSN11 |
| OnlineNotary.net | $19.95 per signer | +$5 per extra stamp | per signer | Not stated | US residents only, with proof of US address12 |
Prices are what each company lists for individuals, checked Oct 27–31, 2026. Your mailbox provider's own verification may cost less or be included in your plan.
Provider names in the table are links; BlueNotary's is an affiliate link and we may earn a commission, at no extra cost to you. It doesn't change our facts. Disclosure
Which one fits
- One person, one form: any of the $25 services works; OnlineNotary.net is the lowest listed price if you're a US resident.
- A couple (two forms): a session with one extra seal and one extra signer. With BlueNotary that's $25 + $8 + $5 = $38, by its published fees.6 Compare the other columns the same way.
- No SSN or living abroad: ask your mailbox provider whether it offers Proof's Verification of Fact 1583; otherwise see online notarization without an SSN.
Sources (12)
USPS, Domestic Mail Manual 508, sections 1.8.3a–c (PDF) (Form 1583 may be witnessed by the CMRA or a notary, in person or by real-time audio-video). See our Form 1583 guide for the full citation list. ↩
Proof Help Center, What you need for online notarization (USPS Form 1583 exception). ↩
Proof Help Center, What you need for online notarization and Acceptable forms of ID. ↩
BlueNotary, homepage document list (PS-1583). Read 2026-10-30. ↩
BlueNotary, How it works (signer view). ↩
BlueNotary, Fee schedule and pricing. ↩
Notarize, PS 1583 form page ($25 first seal, $15 per additional seal, $10 per additional signer). ↩
OneNotary, Notarize USPS-1583 with an online notary ($25 with one notary certificate, +$10 for every additional certificate). ↩
OneNotary, homepage FAQ and plans and pricing. ↩
NotaryLive, pricing and FAQ. ↩
Frequently asked questions
Which online notary is cheapest for Form 1583?
For one form, OnlineNotary.net lists $19.95 per signer (US residents only); BlueNotary, Notarize, OneNotary, NotaryLive and NotaryCam list $25. For a second form in the same session, NotaryLive lists no extra charge for additional seals, BlueNotary $8, OneNotary $10 and Notarize $15.
Can I notarize Form 1583 online without an SSN?
Sometimes. Proof (Notarize's parent) offers a 'Verification of Fact' version of the 1583 that skips the credit-based quiz, but only when your virtual mailbox provider sets the transaction up that way. NotaryCam lists a $79 fee for signers without a US SSN.
Do my spouse and I need two forms?
Yes, for a personal mailbox: USPS requires a separate Form 1583 for each adult, so you'll pay for two notarizations or one session with extra seals and an extra signer.