How To Add Signature To Invoice Online (Free, 2023)

Upload your invoice > Select the Signature field > Sign the invoice. Use our free invoice signer finish work faster than ever before.
How To Add Signature To Invoice Online (Free, 2023)
Last updated on:
July 9, 2023
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You're probably here because you're looking to sign an invoice online. That's exactly what we're going to teach you in this guide.

By the time you'll leave this page, you'll have your invoice signed with our tool that lets you create an electronic signature and then add it to the invoice.

Let's waste no time and see how to sign invoices, the right way.

Does an invoice need a signature?

Yes, an official invoice needs a signature from all of the parties. That means you need to sign the invoice yourself.

But don't worry, this guide is teaching you how to electronically sign invoices smarter than ever before. Save yourself some time with eSignatures!

How to electronically sign an invoice (for free)

  1. Upload your invoice in the box below;
  2. Click Signature on the left menu;
  3. Design your signature (select if already existing);
  4. Drag & Drop your signature on the invoice;
  5. Download it.

Our invoice signing software is designed specifically for documents like yours. Besides, it's 100% free to sign with us!

Use the electronic signature tool as many times as you need it, as we're not going to charge you or add any hidden fees or features you have to pay for.

Everything's transparent at SignHouse.

How to add my signature to a PDF

All you have to do is just upload the invoice, select the signature field, and then drag and drop your eSignature on the document. That easy!

Alternatively, if you have to add multiple signatures to the invoice, you can add new signature fields and insert your signee's details.

Feel free to add as many signees as you need. You're also sure to not miss anybody, as there will be a quick recap after clicking the Sign and download button.

Pro Tip: We've got a library of contract templates that are free to use. Start your invoice from a document we've already researched instead of doing it alone.

Who signs the bottom of an invoice?

All of the signing parties have to sign at the bottom of an invoice. An invoice cannot be closed without getting everybody's consent through their signatures.

With everybody's signature on the document, that is how it gets formalized.

That's all you have to know about adding your signature to an invoice.


Do you put signature on invoice?

Yes, invoices must be signed. If you have an online invoice, you can use a signature maker like SignHouse to create and add your signature to the invoice.

Can I sign an online invoice for free?

Yes, totally. At SignHouse, you can create and add an electronic signature to your invoice without having to pay anything.

Is signing an invoice legally binding?

Yes, signing invoices makes them legally binding. Online invoices that are not signed are not considered legally binding.

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About the author

Ch David is the co-founder of SignHouse. David is here to help the product development team expand the capabilities of ultimate eSignature maker for all your needs. Join David and the SignHouse team in stepping up electronic signatures!