Electronic Signatures: Sign Business Documents Safely

Electronic signatures are signatures applied to a document in electronic form, such as a typed name, a drawn mark or a click captured by a signing platform. New Zealand law treats one as valid where it identifies the signer, shows their approval and is reliable enough for the job it is doing.

A supply agreement goes out on Monday afternoon. It comes back signed ten days later.

Nobody was arguing about the terms. Somebody at the other end had to print it, sign it and scan it, then email it back after a day away from the office.

Multiply that across a year. A firm executing 400 agreements, each one taking 25 minutes to prepare, send, chase and file, spends 167 hours on paperwork, or about $6,700 at an internal cost of $40 an hour.

Add courier and postage at $12 a document and the year costs another $4,800. Call the paperwork line $11,500, before anyone counts the deals that closed a week late.

Signing electronically takes most of that cost out. It also changes what a business can prove afterwards, and most owners ignore that second part until a signature is challenged.

New Zealand answered the legal question in the Electronic Transactions Act 2002, and that answer now sits in the Contract and Commercial Law Act 2017.

What Are Electronic Signatures?

Electronic signatures are any signature applied in electronic form, from a typed name at the foot of an email through to a signature captured in a dedicated platform with identity checks behind it. What the signature can prove matters more than how it looks on the page.

That range is deliberately wide. A tick box on a website, a stylus scrawl on a tablet and a click inside a signing platform can all count as a signature in law.

New Zealand keeps no register of approved methods, so any method meeting the Act’s functional test will do.

They differ in the evidence they leave behind. A typed name proves almost nothing on its own, while a platform record shows who opened the document, from which address, at what time, and which version they agreed to.

So the question is never whether electronic signing is permitted. It is whether the method chosen will hold when somebody says they never agreed.

What is the difference between an electronic signature and a digital signature?

An electronic signature is the legal concept, and a digital signature is one technical method of creating one, using public key infrastructure, shortened to PKI. Most business platforms apply a digital signature to seal the finished document, then wrap it in an audit trail.

The seal makes later alteration detectable, so changing a single character in the signed PDF breaks it.

Vendor material blurs the two words together. Ask whether the completed document carries a tamper-evident seal, because only the seal carries legal weight.

Are Electronic Signatures Legally Valid in New Zealand?

Yes. Section 226 of the Contract and Commercial Law Act 2017 provides that a legal requirement for a signature is met by an electronic signature where it adequately identifies the signatory, adequately indicates that signatory’s approval of the information the signature relates to, and is as reliable as is appropriate given the purpose and the circumstances.

One extra condition sits beside that test. Where the information is legally required to be given to a person, that person has to consent to receiving an electronic signature.

Electronic signature requirements: flat vector graphic showing the three tests a signature must meet under New Zealand law.

That leaves reliability. Section 228 of the same Act presumes an electronic signature is reliable enough when the means of creating it was linked to the signatory and to no other person, was under that signatory’s control alone, and when any later alteration to the signature or to the signed information is detectable.

Read that list beside what a signing platform does. A unique invitation to one named address, every action logged, and the finished document sealed.

A signature does not have to meet the presumption to be valid. Meeting it shifts the work onto whoever wants to argue the signature was unreliable.

Which documents cannot be signed electronically in New Zealand?

A short list, and it is set out in Schedule 5 of the Act, which names the enactments and provisions excluded from the electronic transactions rules. The excluded enactments are largely electoral, covering the Electoral Act 1993, the Local Electoral Act 2001, the Citizens Initiated Referenda Act 1993 and the Electronic Courts and Tribunals Act 2016, plus named provisions in other statutes.

Away from that schedule, some documents carry their own form requirements under other legislation, and some counterparties refuse electronic signing as policy. Banks are where a wet signature still gets asked for, and a European customer may be working to its own regime under eIDAS.

Can an electronic signature be witnessed?

Yes. Section 227 of the Act provides that a witnessing requirement is met by a witness’s electronic signature, provided the signature being witnessed complies with section 226, and provided the witness’s own signature identifies the witness and indicates that the signature or seal has been witnessed.

Guarantees and bank documents are where a witnessing clause usually turns up.

Build witnessed documents as their own template with the witness in the signing order. Two separate envelopes is how the requirement gets missed.

Who in a business is allowed to sign a contract?

Whoever the business has authorised to do it, which is a question about delegated authority and has nothing to do with the signing method. Electronic signing makes the answer visible, because the platform records the named person who signed and the address the invitation went to.

Most small firms have never written that authority down. The result is a sales manager committing the company to a three-year term only a director should have agreed.

Set a value threshold and a named signer for each document type inside the platform. Routing a $200,000 agreement to a director takes ten minutes to configure.

What Is an Electronic Signature Audit Trail?

An electronic signature audit trail is the record a signing platform keeps beside the document, covering the signer’s identity evidence, a timestamp against every action, the IP address each action came from, a hash of the document, the version signed, and the delivery and viewing record. Together those records answer a challenge two years later.

A dispute is rarely about whether a signature exists. It turns on whether this person signed this version on this date.

As an illustration, a supplier concedes they signed but insists the price schedule attached was the earlier one. With no record tying that signature to a specific file, the argument runs for months and gets settled on commercial grounds.

Six records do the work:

  • Identity evidence. The email address or mobile number the invitation went to, plus any access code or document check used to confirm who was at the other end.
  • Timestamps. When the document was sent, opened, viewed, signed and completed, held against a defined time source.
  • IP address. Where each action came from, which is thin evidence alone and useful in combination with the rest.
  • Document hash. A fingerprint of the file, so the version signed can be matched to the version you produce in a dispute.
  • Version signed. The exact document, including every attachment and schedule, as it stood at the moment of signing.
  • Delivery and viewing record. Evidence the signer had the document in front of them before they agreed to it.
E-signature audit trail: flat vector panel listing the identity, timestamp, hash and version records a signing platform must keep.

Most of these records fail on timekeeping. A platform that stamps actions against its own synchronised clock is safer than one trusting the signer’s device.

Ask a vendor to show you a completion certificate from a real transaction before you buy. It is what you hand to a lawyer if the agreement is tested.

How long should a signed contract and its audit trail be kept?

Keep both for as long as the agreement can still be enforced or audited, which for most commercial contracts means at least seven years after the arrangement ends. An audit trail is useless once it is separated from the document it belongs to, so store the two together.

Set the retention period in one place. Two systems holding different rules give two different answers, and the wrong one surfaces under pressure.

Where Should Signed Contracts Be Stored?

Signed contracts should be stored in the document system the rest of the business already uses, filed against the customer or supplier they relate to. A signing platform is somewhere documents pass through, so leaving the only copy inside it makes your contract archive a subscription dependency.

Most firms already own the store. Anyone on Microsoft 365 has SharePoint, and the structure worth building is covered in our guide to a SharePoint intranet.

Filing has to happen without a person, so name the destination folder before go-live and have the platform write to it on completion, sealed PDF and certificate together. An agreement waiting for somebody to refile it sits in a mailbox for a fortnight, and somebody will be searching that mailbox for it in two years.

Write down where each document type goes and who may open it. That record belongs with your other IT documentation, beside the systems list and the access map.

Who should be able to open an executed contract?

The people who need it to do their job, which is a smaller group than the one holding access today. Contracts carry pricing, personal details and terms you would not email to a competitor.

Signing platforms also hold identity evidence about individuals, which is personal information under the Privacy Act 2020. That puts the contract archive under the same security and retention duties as every other store of personal information you keep.

A 12-person firm holding three years of signed employment agreements is a real target.

How Do E-Signatures Connect to Your Existing Systems?

E-signatures connect through a template and an integration, so the document is generated from data the business already holds, sent from inside the system where the deal lives, and written back when it completes. That connection removes the retyping that causes signing errors, along with the delay while somebody notices one.

Signing is one step in a document workflow that starts with a quote and ends with a filed contract.

Many CRM and payroll systems ship with a signing integration already built for one or two named platforms, so check what your systems support before you shortlist.

A template pulling the customer name and the pricing straight from the record removes a manual step and a class of error.

Where nothing off the shelf fits, signing can be embedded in a system built for it, which we cover in custom software development.

Documents that travel as structured data between accounting systems are a different workflow again, covered in our post on eInvoicing. Signing platforms handle the documents that need a person to agree to something.

Can a signing platform pull data from our CRM?

Yes, where both products support the same integration, and the mainstream signing platforms carry connectors for the common CRM and payroll systems. The connector maps fields from the record into a template, then writes the completed document and its status back against that record.

Ask for the field mapping in writing during setup, because a field that stops populating without warning produces contracts with a blank term in them.

How Do You Roll Out Electronic Signatures in a Small Business?

Start with the document you send most, prove the workflow on it, then extend. Six steps get a business to a working setup inside a few weeks.

  1. Count what you send. List the document types, the annual volume of each and who has to sign them. One page is enough, and it becomes the brief you hand to whoever configures the platform.
  2. Take the two with the most traffic. Sales agreements and employment paperwork are the usual answers for a firm under 50 people.
  3. Choose the signing method for each. A click-to-accept flow suits a low-value order, while a six-figure supply contract earns an emailed access code and a stronger identity check.
  4. Connect it to the system that generates the document, so the template draws from the record and the finished file comes back to it.
  5. Set the filing destination and the retention period before the first live document goes out, because retrofitting it across 300 signed agreements is a project on its own.
  6. Tell your customers and suppliers what is changing, and name a person they can ring if they will not sign electronically.

Run the paper path alongside the new one for a month before you switch it off. Somebody will need it, and it is usually your largest customer.

How long does a signing rollout take?

Two to four weeks for the first document type, and the platform setup is only an afternoon of that. The rest of the time goes on decisions the business has never had to make before.

What fills the fortnight is agreeing which document goes first, who signs it, and where the finished file lands. A template drawing from a CRM adds a week or two on top.

How Much Do Electronic Signatures Cost a Small Business?

Per-user plans run about $20 to $70 per user per month and envelope pricing about $2 to $6 per document, with integration work quoted as a project. The ranges below are indicative for a New Zealand SME and move with volume and the strength of identity verification required.

What you are buying What it covers Indicative range
Per-user signing plan Named senders with templates and reminders, plus the audit trail $20 to $70 per user per month
Envelope or transaction plan Charged per document sent for signature, suited to low volume $2 to $6 per document
Identity verification add-on Access codes, document checks or bank-verified identity per signer $3 to $15 per signer
Integration and templates Connecting the platform to your CRM or payroll system, and building the templates $2,500 to $12,000 one off
Filing and retention setup Automatic delivery into your document store with retention applied $1,500 to $5,000 one off

The subscription is seldom the deciding number. The 167 hours of paperwork in the example above is, and it does not appear on any invoice.

Put the two sides together for that firm. Five senders on a mid-range plan runs about $2,400 a year. Setup and templates land between $2,500 and $12,000 once, and most of the $11,500 in annual paperwork goes away.

First year is roughly a wash, and a saving after that. The harder question is who signs what.

Exodesk scopes this as a business software project, pricing the platform, the integration and the filing destination together.

Is a free signing tool good enough for a business?

No, for anything you would want to enforce. Free tiers cap the document count and thin out the identity evidence and retention controls that make a signature defensible.

You pay for that gap once. A disputed agreement with no usable audit trail behind it can cost more in legal fees than a decade of subscriptions.

Where a business signs fewer than 20 documents a year, envelope pricing at a few dollars a document is enough. A free tier saves a few hundred dollars and risks an agreement you cannot enforce.

Get Your Documents Signed and Filed Properly

Exodesk has supported South Island organisations since 1989 and works with clients across Canterbury, Otago and Southland from offices in Christchurch and Dunedin. We set up electronic signatures, connect them to the systems that produce your documents, and make sure the executed original lands where your team can find it in two years.

Contact us today to discuss how we can help your business or connect with us on LinkedIn to stay updated with more insights.

Frequently Asked Questions

Do both parties need to agree before a document is signed electronically?

No, not as a blanket rule. Section 226 of the Contract and Commercial Law Act 2017 requires the recipient’s consent where information is legally required to be given to that person, and in ordinary commercial dealings a willingness to sign electronically is evident from how the parties behave. Recording the agreement in the contract itself costs nothing and removes an argument later.

Is a scanned copy of a handwritten signature an electronic signature?

Yes. An image of a handwritten signature pasted into a document is an electronic signature and it can satisfy a legal signing requirement. The weakness is evidential, because an image can be lifted from one document and dropped into another, so it proves very little about who applied it or when. Use a signing platform once the amount at stake justifies the record.

What is a wet signature?

A wet signature is a signature made by hand in ink on paper, the method electronic signing replaces. The term exists to distinguish paper execution from an electronic process.

Can employment agreements be signed electronically in New Zealand?

Yes. Employment agreements are signed electronically by many New Zealand employers and the requirements of the Contract and Commercial Law Act 2017 apply to them as they do to any other document. Keep the signed agreement and its audit trail in the same place, because an employment dispute can arrive years after the person has left the business.

What happens if someone denies signing a document?

The party relying on the document has to show that the signature identifies the person who made it and that the document has not changed since. A platform audit trail carrying identity evidence plus timestamps and a document hash answers both points. A signed PDF with no surrounding record is an assertion. Ask your provider to produce a full completion certificate on a live agreement so you know what you would be relying on.

Is a typed name at the end of an email a legal signature?

Yes, in some circumstances. A typed name can meet the test in section 226 where it adequately identifies the person and indicates their approval of the content. Proving that months later is the hard part, so anything you would want to enforce belongs in a signing platform with a record behind it.

Does Microsoft 365 include an electronic signing service?

No. Microsoft 365 business plans do not include a signing service, so most organisations add a platform and connect it to SharePoint and Outlook. Some CRM and payroll products bundle signing for their own documents, which can be enough where all of your volume sits in one system.

How much does an e-signature platform cost per user?

Per-user plans commonly sit between $20 and $70 per user per month, so a five-person team pays $100 to $350 a month. Envelope pricing at $2 to $6 a document works out cheaper where volume is low. Integration and template work is quoted separately and usually falls between $2,500 and $12,000.

What is the first step before buying a signing platform?

List every document type the business sends for signature, the annual volume of each and who has to sign it. That single page tells you whether per-user or per-envelope pricing is cheaper and which integration matters. Two document types usually carry most of the volume.

Can Exodesk set up electronic signatures for a Christchurch or Dunedin business?

Yes. Exodesk works with organisations across Canterbury, Otago and Southland from offices in Christchurch and Dunedin, and has operated in the South Island since 1989. We scope the platform, connect it to the systems that generate your documents, and set the filing destination and the retention rules before you go live.

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