Guide

How to get a contract signed on your phone

You don't need a printer, a scanner or a laptop to close a deal. A contract can be signed on a phone in a couple of minutes, whether the customer is sitting across the table or three states away. The right method depends on where they are and who's signing. Here's how each one works, step by step.

Updated October 13, 2026 · 4 min read

On this page
  1. Pick the right way
  2. When they're with you: sign in person
  3. When they're somewhere else: send a link
  4. What your customer sees
  5. When someone sends you a contract
  6. What makes a phone signature hold up
  7. Tips for faster signatures
  8. Questions

Pick the right way

SituationBest method
The customer is with youSign in person: hand them your phone
The customer is somewhere elseSend a signing link they open on their own phone
Several people sign, in orderSend with a signing order: each person gets the link when it's their turn
Someone sent you a contract to signSign their link, or sign the PDF yourself
Which method fits the situation

When they're with you: sign in person

This is the fastest way to close: the customer signs before you leave. With SignMaster you prepare the contract on your phone, then hand it over. Each document you send is an envelope: one or more documents going to one or more signers.

  1. 1

    Prepare the contract

    Start an envelope from a template or upload the PDF. Add the customer as a signer and fill in everything you can before you hand the phone over: price, scope, start date.

  2. 2

    Tap Sign in person

    Open the envelope and tap Sign in person for the customer. A hand-over screen shows who should take the phone.

  3. 3

    They sign, field by field

    The customer agrees to sign electronically, then signing moves them from field to field. They can draw, type or use a picture of their signature, and turn the phone sideways for more room.

  4. 4

    Take the phone back

    A hand-back screen tells them to return your phone. In the iPhone and iPad app, only your Face ID or passcode gets you back in.

  1. 1

    Add the signers

    Enter each signer's name and email. If more than one person signs, set the order. Tap Add me if you'll countersign.

  2. 2

    Place the fields

    Put signature, initials, date signed and any text or checkbox fields where each signer needs them.

  3. 3

    Set a deadline and reminders

    In Message & settings, add a note, a sign-by date, and an access code if the contract is sensitive.

  4. 4

    Send

    Each signer gets an email with a link. They open it on any phone or computer with no account, and can read and sign in their own language: SignMaster's signing page comes in 6 languages.

When the last person signs, everyone gets the signed PDF by email, along with a certificate of completion.

What your customer sees

It helps to know the signer's side, so you can walk a nervous customer through it:

  1. An email from you with a button to review and sign, or your phone handed across the table.
  2. A code prompt, only if you turned on an access code.
  3. A short consent: a checkbox agreeing to use electronic records and signatures, with a link to read the full disclosure, and a way to decline.
  4. The contract, with each field they need to fill highlighted in turn.
  5. A signature box where they draw, type or use a picture, then Adopt and sign.
  6. A done screen, and later an email with the fully signed PDF once everyone has signed.

When someone sends you a contract

If it came as a signing link, open it and follow the steps. If it came as a PDF attachment, you can sign it with tools already on your phone: Markup on iPhone, or Drive and Acrobat Reader on Android. Those work well for a document only you sign. If you want a record of the signing, upload it to SignMaster, tap Add me, and sign it there.

What makes a phone signature hold up

Under the federal ESIGN Act and state UETA laws, a contract can't be denied legal effect just because it was signed electronically. Signing on a phone screen is no different from signing on a laptop. What matters is being able to show who signed, that they agreed to sign electronically, and what they signed.

  • A consent step. SignMaster asks each signer to agree to use electronic records and signatures before they sign, and lets them decline.
  • An audit trail. The certificate of completion records each signer's email, IP address, device and the time of each step.
  • An access code for sensitive contracts: one you share, or a one-time code emailed to the signer.
  • The same final copy for everyone, sent automatically when signing is done.

A photo of a paper contract texted back to you, or a signature drawn in a photo editor, carries none of that. It may still be a valid signature, but it's much harder to prove.

Tips for faster signatures

  • Use templates for contracts you send often, so the fields are already placed.
  • Fill in the blanks first. Hand over a contract that only needs signatures.
  • Set the signing order so the customer signs first and you countersign after.
  • Add a sign-by date. Reminders follow up so you don't have to.
  • Scan paper contracts with Scan with your phone: start an envelope on a computer, scan the pages with your phone's camera, then send them like any other PDF.

Questions? Answers.

Is a contract signed on a phone legally binding?

Generally, yes. The ESIGN Act and state UETA laws give electronic signatures legal effect for most contracts, whatever device is used. A few documents, like wills, are excluded, and some need a notary.

Does my customer need an app or an account?

No. With SignMaster, signers open a secure link in their phone's browser and sign. Nothing to install, no account to create.

Can two people sign on the same phone?

Yes. Use Sign in person for the first signer, then again for the next signer when it's their turn. Each signing is recorded separately on the certificate.

What if my customer would rather read it in Spanish?

The signing page, emails and e-signature consent come in Spanish and SignMaster's other signer languages, 6 in all, and signers can switch languages on the signing page. The contract itself stays in the language you wrote it in.

Sources

  1. 15 U.S.C. § 7001, ESIGN Act general rule and consumer consent (govinfo) · govinfo.gov
  2. Uniform Electronic Transactions Act (1999), final text (Uniform Law Commission) · uniformlaws.org
  3. Apple, Fill out forms, sign documents, and create signatures on iPhone · support.apple.com

General information, not legal advice. Laws change, and how they apply depends on your situation. For advice about a specific document, talk to a lawyer licensed in your state.

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