How to Countersign a Contract

"Countersigning" sounds formal, but the idea is simple: it's the second signature on a document that's already been signed by the first party. Once both parties have signed, the agreement is complete. Here's what it means, when you need it, and how to do it online in the right order.

What is a countersignature?

A countersignature is a signature added to confirm and accept a document that someone else has already signed. The first party signs to make the offer or commitment; the second party countersigns to accept it. Only when the document is countersigned is it fully executed and binding on both sides.

When is countersigning used?

• Job offer letters (employer signs, candidate countersigns to accept)
• Lease and rental agreements (tenant signs, landlord countersigns)
• Client contracts and service agreements
• Partnership and vendor agreements
• Any agreement where one side prepares and signs first, then the other accepts

How to countersign a contract online

The clean way to handle this digitally is sequential signing — the document goes to the first signer, and only after they sign does it move to the second signer to countersign. No back-and-forth, no printing, and everyone ends up with the same fully executed copy.

Step 1: Upload the contract

Create a free SignovaX account and upload the PDF.

Step 2: Add both signers in order

Add the first signer and the countersigner, and place a signature field for each. Choose sequential signing so they sign one after another in the order you set.

Step 3: The first party signs

The first signer receives an email, clicks the link, and signs. As soon as they're done, SignovaX automatically sends the document to the countersigner.

Step 4: The second party countersigns

The countersigner gets their own link, reviews the already-signed document, and adds their signature. Once they finish, the contract is fully executed.

Step 5: Everyone gets the final copy

All parties receive the completed PDF with both signatures, plus a full audit trail and a tamper-evident SHA-256 hash showing exactly who signed and when.

Parallel vs sequential signing

If order doesn't matter, you can use parallel signing — everyone gets their link at the same time. For countersigning, sequential signing is usually what you want, because the second party is accepting what the first party signed. You can read more about requesting signatures in how to request a signature by email.

Is a countersigned e-contract binding?

Yes. A contract countersigned electronically is legally binding in most countries under laws like the ESIGN Act and eIDAS, and the audit trail records each signature in sequence. More in are electronic signatures legally binding?

Disclaimer: This article is for general informational purposes only and is not legal advice.