How long does it take to send a purchase agreement for e-signature?

With Zignature, you can upload a purchase agreement PDF and send it for electronic signature in under 2 minutes. AI automatically detects all signature, initial, and date fields — you don't need to manually tag anything. Enter the buyer's and seller's names and emails, and they receive a signing link immediately.

Can buyers and sellers both sign the same purchase agreement electronically?

Yes. Zignature supports multiple signers on the same document. You can set signers to sign in a specific order (buyer first, then seller) or in parallel (both receive the document at the same time). Each signer receives their own secure link and signs from their own device.

What information is included in the e-signature audit trail?

Zignature's Certificate of Completion includes: the full name of each signer, their email address, their IP address, the timestamp of each signature event (to the second), the device and browser used, and the geolocation at time of signing. The signed PDF is also hashed to detect any post-signing tampering.

Do I need to use a specific purchase agreement form?

No. You can upload any purchase agreement PDF — CAR, TREC, FAR, or any other state-specific or custom form. Zignature's AI reads your uploaded form and automatically places signature, initial, and date fields without any manual configuration.

Can I sign a purchase agreement online for free?

Yes. Zignature's free plan allows you to send purchase agreements for digital signature. Sign up at zignature.io, upload your PDF, and send for signature — no credit card required.

Sign a Purchase Agreement Online — Free & Legal

Q: Is an electronically signed purchase agreement legally binding?

Yes. Under the federal Electronic Signatures in Global and National Commerce Act (ESIGN) and the Uniform Electronic Transactions Act (UETA), electronic signatures on real estate purchase agreements are fully legally binding in all 50 US states. A Zignature-signed purchase agreement carries the same legal weight as a wet-ink signature, backed by a tamper-evident audit trail with timestamps, IP addresses, and identity information.

Step by Step

How to Sign a Purchase Agreement Online

No training required. Upload, add signers, send — done in 3 steps.

1

Upload Your Form

Drag and drop your purchase agreement PDF — CAR, TREC, FAR, NWMLS, or any state form. Zignature's AI reads the document and automatically identifies all signature, initial, and date fields. No manual tagging.

2

Add Buyer & Seller

Enter the name and email of each signer. Choose whether buyer signs first (sequential) or both sign at once (parallel). Add agents, brokers, or other parties as CC recipients or additional signers.

3

Send & Close

Click Send. Everyone signs from any device — phone, tablet, or computer. You're notified the moment each person signs. When complete, all parties receive the signed PDF with a Certificate of Completion automatically.

Legal Compliance

Legally Binding in All 50 States

Electronic signatures on real estate purchase agreements are fully legal under two federal and state laws that apply nationwide:

ESIGN Act (Federal)

The Electronic Signatures in Global and National Commerce Act (15 U.S.C. § 7001) establishes that e-signatures are legally valid for contracts in all 50 states and US territories.

UETA (Uniform Electronic Transactions Act)

Adopted in 49 states and DC, UETA gives electronic records and signatures the same legal standing as paper and ink for commercial transactions including real estate contracts.

Tamper-Evident Audit Trail

Every Zignature document is cryptographically hashed after signing. The Certificate of Completion contains IP address, timestamp, and device data for each signature event — satisfying court evidentiary standards in all jurisdictions.

Purchase Agreement — Signed ✓

456 Maple Lane, Austin, TX 78701

David Chen (Buyer)

Signed today at 2:14 PM · iPhone · Austin, TX

Maria Torres (Seller)

Signed today at 3:47 PM · MacBook · San Antonio, TX

Certificate of Completion

Document hash: a4f2c...91b7

ESIGN Act compliant · Tamper-evident · Legally binding

Download Signed PDF

Download Audit Trail

Works With Every State's Purchase Agreement Form

Upload your state or MLS standard form. AI places the fields automatically.

California

CAR RPA-CA

Texas

TREC 1-4 Family

Florida

FAR/BAR AS-IS

New York

Custom contracts

Washington

NWMLS Forms

Colorado

CBS 1-4

Arizona

AAR Res. Resale

+ 43 more

Any PDF form works

FAQ

Purchase Agreement Signing FAQ

Is an electronically signed purchase agreement legally binding?

Yes. Under the federal ESIGN Act and UETA, electronic signatures on real estate purchase agreements are fully legally binding in all 50 states. Every Zignature-signed document includes a Certificate of Completion with IP addresses, timestamps, and device information that satisfies court evidentiary requirements.

Does the buyer need to create a Zignature account to sign?

No. Buyers and sellers receive a secure link by email or text and sign directly from that link — no account creation, no app download, no login required. The signing experience works on any device and takes under 5 minutes for a standard purchase agreement.

How does AI field detection work on purchase agreements?

Zignature's AI reads the text of your uploaded purchase agreement and identifies all signature lines, initial boxes, date fields, and checkbox fields based on their context in the document — not just visual appearance. It correctly assigns buyer vs. seller signatures and places them at the right locations. You can review and adjust placement before sending if needed.

Can I sign a purchase agreement on my phone?

Yes. Both sending and signing work fully on any smartphone. Agents send purchase agreements from their iPhone or Android at the property. Buyers and sellers sign from wherever they are — no desktop required. The signature experience is touch-optimized and takes a few taps per page.

What happens after everyone signs?

Once all parties sign, Zignature immediately emails the completed, signed purchase agreement PDF to all signers and any CC recipients you specified. A Certificate of Completion with the full audit trail is included. Signed files are also stored permanently in your Zignature account.

Ready to Send Your First Purchase Agreement?

Upload your form, add your signers, and close the deal — in under 2 minutes. Free to start.

Sign a Purchase Agreement Free See Pricing

Free plan · No credit card · ESIGN Act & UETA compliant

Sign a Real EstatePurchase Agreement Online