SD E-Signature API
ClosingSignIQ in South Dakota
Embed legally binding e-signatures in your South Dakota application. Every signed document sealed with an X.509 digital certificate from our Certificate Authority. South Dakota has adopted UETA. ESIGN Act compliant. $0 per-envelope cost.
SD E-Signature Law
Electronic signatures are legally binding in South Dakota.
ESIGN Act
Federal Law (2000)
15 USC §7001. Electronic signatures have the same legal effect as wet-ink signatures in all 50 states.
UETA Status
South Dakota has adopted UETA
South Dakota adopted the Uniform Electronic Transactions Act, providing state-level recognition of electronic signatures.
Remote Notarization
Legal since 2020
South Dakota permits Remote Online Notarization (RON). South Dakota Codified Laws Chapter 18-1A
Notary Fee Cap
$10 per notarial act
ClosingSignIQ e-signatures are $5/envelope (Pay-Go) or FREE on Pro+, regardless of state. Notarization fees follow state law.
SD Documents
Common South Dakota documents for e-signature.
Real estate deeds
Agricultural leases
Trust documents
Powers of attorney
Business formation documents
Key South Dakota industries using ClosingSignIQ:
AgricultureTourism (Mount Rushmore)Financial services (credit card industry)Healthcare
South Dakota
E-signatures where South Dakota does business.
Video by Jithin Mathew on Pexels
Integration
Add e-signatures to your South Dakota app in minutes.
your-south-dakota-app/api/sign.ts
// Send a real estate deeds for e-signature in South Dakota
const envelope = await fetch('https://closingiq.app/api/v1/signing/envelopes', {
method: 'POST',
headers: { 'X-API-KEY': process.env.CLOSINGSIGNIQ_KEY, 'Content-Type': 'application/json' },
body: JSON.stringify({
title: 'Real estate deeds — South Dakota',
signers: [{ name: 'Signer Name', email: '[email protected]' }],
}),
});
// X.509 certificate + SHA-256 audit trail included automaticallyAPI Pricing
Start free. Scale in any state.
Free
$0
5 envelopes/month
- ✓ API + OAuth
- ✓ Audit trail
- ✓ Email notifications
Starter
$29/mo
50 included, then $0.50
- ✓ Embedded signing
- ✓ X.509 certificate
- ✓ Webhooks
Growth
$79/mo
250 included, then $0.35
- ✓ White-label
- ✓ our CA certs
- ✓ SMS notifications
Scale
$199/mo
1,000 included, then $0.25
- ✓ Full white-label
- ✓ Templates API
- ✓ 99.9% SLA
SD Cities
ClosingSignIQ API in South Dakota cities.
FAQ
E-signature API questions for South Dakota.
Is remote online notarization legal in South Dakota?
Yes. South Dakota enacted RON legislation in 2020 through Chapter 18-1A. Notaries must register and use approved electronic notarization platforms. Additionally, ClosingSignIQ provides X.509 digital certificates from our Certificate Authority and SHA-256 hash-chained audit trails for every signature.
What is the notary fee cap in South Dakota?
South Dakota allows notaries to charge up to $10 per notarial act for both in-person and remote notarizations. Additionally, ClosingSignIQ provides X.509 digital certificates from our Certificate Authority and SHA-256 hash-chained audit trails for every signature.
How do I get an apostille in South Dakota?
Submit your document to the South Dakota Secretary of State with a $10 fee. Walk-in service is available in Pierre. Mail processing takes 3-5 business days. Additionally, ClosingSignIQ provides X.509 digital certificates from our Certificate Authority and SHA-256 hash-chained audit trails for every signature.
Is RON used for trust and financial documents in South Dakota?
Yes. South Dakota is a top state for trust formation due to favorable trust laws. RON is extensively used for trust creation documents, amendments, and financial services paperwork. Additionally, ClosingSignIQ provides X.509 digital certificates from our Certificate Authority and SHA-256 hash-chained audit trails for every signature.
Why is South Dakota popular for trust formation?
South Dakota has no state income tax, strong asset protection laws, and perpetual trust provisions. This attracts trust formation from across the country, creating high demand for notarized trust documents. Additionally, ClosingSignIQ provides X.509 digital certificates from our Certificate Authority and SHA-256 hash-chained audit trails for every signature.
Can I use an interpreter during notarization in South Dakota?
No. South Dakota operates under the doctrine of direct communication, which requires the notary to communicate directly with the signer in a shared language. Third-party interpreters are not authorized for the notarial ceremony. If you need language assistance, your session can be routed to one of the six states that permit interpreters (AZ, CO, FL, MS, NC, PA). ClosingIQ offers 189-language document translation. Additionally, ClosingSignIQ provides X.509 digital certificates from our Certificate Authority and SHA-256 hash-chained audit trails for every signature.
What makes ClosingSignIQ different from DocuSign or BoldSign?
ClosingSignIQ is the only e-signature API with built-in AI document scanning and X.509 digital certificates from our Certificate Authority. Every signature includes a SHA-256 hash-chained audit trail. Plus, our API costs 80% less than DocuSign with $0 per-envelope infrastructure costs.
Other States
ClosingSignIQ API is available in all 50 states.
Ship e-signatures in South Dakota today.
Free tier. X.509 certificates. SHA-256 audit trail. ESIGN Act + South Dakota UETA compliant.