The Cheapest Way to Get Legally Binding E-Signatures (And When Cheap Costs More)

By the Signatura team · Published August 8, 2026 · Updated October 15, 2026

Quick answer

If you need to sign one document once, the cheapest way is free: legal validity comes from the ESIGN Act and UETA, not from the software, so a free tier or a typed name with intent to sign can be binding. For a team it is a different question, because the entry price is rarely the price you end up paying. Per their own published pricing, the cheapest entry points are BoldSign's free Essential plan at 25 envelopes a month and its Growth plan at $5 per user per month on annual billing, capped at 50 envelopes a month with unlimited sending only on the $15 Business tier, and Xodo Sign's Basic at $10 per user per month annually, which does include unlimited documents but only 3 templates. Above them, SignNow limits users to 100 envelopes/invites per user per year on every plan including Enterprise, Signeasy's $10 Personal plan sends 5 contracts for signature a month, DocuSign's US, UK, EU, Australian and Japanese plans allow a total of 100 envelopes per user per year — past that, its US, UK, Australian and Japanese pages bill per envelope, its EU pages say you buy more yourself, and its support centre says the excess is billed pay-as-you-go with no country exception — while only its Canadian page sells unlimited web-app sending, and PandaDoc includes unlimited e-signatures on Starter but lists custom branding, CRM integrations and bulk send on the Business plan above it. Price the plan you would genuinely be on, for the number of seats you would genuinely have.

Third-party pricing and plan details on this page were verified against each vendor’s own published pages on September 8, 2026. Vendors change their pricing frequently — check the vendor’s current plans before making a decision.

Two people can ask this question and mean completely different things.

One has a single document, once, and wants to know whether they have to pay anything at all. The answer for them is short and this page will not waste their time: no.

The other is buying for a team, and “cheapest” is shorthand for “how do I not overpay.” That is a harder question than comparing headline prices, and the rest of this page is about it.

If you need one signature, once

Legal validity does not come from software. In the US it comes from the ESIGN Act and UETA; in the EU from eIDAS. What those require is intent to sign, attribution to the signer, consent to transact electronically, and the ability to retain the record — none of which is a paid feature. We set the requirements out in Are electronic signatures legally binding?

So a free tier, or in some cases a typed name in an email, can produce a binding signature. If the document is low-stakes and nobody is realistically going to dispute it, that is genuinely the cheapest way and you should take it.

What you give up is evidence, not validity. If a signature is ever challenged, the question stops being “is this valid?” and becomes “can you show who signed, what they saw, and that the file has not changed since?” That is worth paying for when the document matters, and not worth paying for when it does not. Only you know which you have.

If the one document needs someone else’s signature and you’d rather have a tool carry it, we keep a sourced list of the genuinely free routes — permanent free tiers included — in free DocuSign alternative for one document.

The rest of this page assumes it matters, or that there is more than one of them.

For a team, the entry price is rarely the price

Here is the trap. Comparison tables put the lowest number in the first column, and buyers price that column. But the cheapest plan is usually cheapest because something has been taken out of it — and the two things most often taken out are how much you can send and the feature you specifically came for.

That is not a claim about any vendor’s motives. It is visible on their own pricing pages, and it is worth reading them closely. Six examples, quoted from the vendors themselves and re-read on the check date shown above — four where the limit is volume, two where it is features:

BoldSign carries the lowest entry price of the six here, and its page is a fair example of a limit that is disclosed rather than buried. It opens with “you don’t have to deal with hidden document limits, feature limitations, or unexpected overage charges”, and the allowances are indeed printed on the cards themselves. On its pricing page Essential is “$0” with “25 envelopes/month”, “2 templates” and “No additional users” — unusually complete for a free plan, carrying an audit trail, automated reminders, signer authentication and custom branding. Growth is “$5” “/month/user” on yearly billing with “50 envelopes/month/user” and “10 templates”, and additional users at “$5” “/month” each. “Unlimited envelopes” is the tier above, Business at “$15” “/month/user” yearly; switch the page’s toggle from yearly to monthly and those two become “$15” and “$25”. Premium, at “$99” “/month”, buys “Unlimited users” and brings the meter back at “250 envelopes/month”. The $5 headline is real. It is an annual-billing price, and what it does not include is unlimited sending.

SignNow states on its plans and pricing page that “signNow users are limited to 100 envelopes/invites per user/year” — and notes this applies even on the Enterprise plan. One hundred a year is roughly eight sends per person per month. That is a volume ceiling rather than a price, and it does not move when you upgrade. What to compare against that ceiling is in SignNow alternatives.

Signeasy’s pricing page lists a Personal plan at “$10/ month/seat” (“$120 billed yearly”) whose entry reads “Send 5 contracts for signature monthly”. The line “Send unlimited documents for signature” appears on the Business plan at “$20/ month/seat” (“$240 billed yearly”). The $10 tier is real, but for a business sending more than five things a month the practical entry point is the $20 one.

DocuSign’s published plans are the one case here where the answer depends on which country’s page you are shown, so check yours before budgeting. On their US plans page the paid tiers are plain Standard and Business Pro, and the bullet on each reads “Send a total of 100 envelopes per user per year”. Their FAQ adds what happens above it: “If your Envelope usage exceeds your plan allowance, each Envelope used in excess is considered an ‘additional’ Envelope that will be billed in a ‘Pay-As-You-Go’ manner, where Docusign will charge a set, per-envelope rate.” The UK, Irish, German, French, Spanish, Brazilian, Australian and Japanese pages publish the same allowance, but not the same rule above it: the UK, Australian and Japanese ones repeat that sentence; the Irish, German, French, Spanish and Brazilian ones mention no charge and leave you to buy further envelopes yourself, under a Reasonable Use Policy; and DocuSign’s support centre says, with no country exception, that excess envelopes are billed pay-as-you-go (both sides quoted). Their Canadian page is the exception: there the same two tiers are sold as Standard Unlimited and Business Pro Unlimited, ordinary web-app sending is not counted, and 100 per user per year survives only as a separate “automation send allowance” covering “bulk send, PowerForms, Web Forms, custom APIs, or partner APIs”. Either way, bulk send, PowerForms and Web Forms sit on Business Pro and above, so if one workflow needs bulk send, the upgrade applies to every seat rather than the one person who needed it. Their IAM plans go one step further: IAM Standard and IAM Professional are both listed with a “3-user minimum”, which means the per-user rate printed on the card is not a price you can buy one of. We set that whole structure against SignWell’s — which meters templates rather than sends — figure by figure in DocuSign vs SignWell pricing.

PandaDoc’s pricing page is the clearest example of the second kind, and it is the one page here we could not reach on the re-check date shown above — it answered every attempt with an HTTP 429 rate limit. Its dollar figures are therefore the oldest numbers on this page, last read on 8 August 2026: Starter at “$19 USD” per seat per month on annual billing (“$35 USD” on monthly), Business at “$49 USD” annually (“$65 USD” monthly), and Enterprise quoted rather than listed. The structure behind those prices we could re-verify, on PandaDoc’s own plan comparison: documents are “unlimited” on Starter, Business and Enterprise and “60 per year (2 recipients/ document)” on the free tier, so volume is genuinely not the constraint. The feature list is. Custom branding is blank on Free and Starter and ticked on Business and Enterprise, and Bulk Send carries a ”$” on Business and Enterprise — which that page’s own legend defines as “Feature is available as a paid add-on, charge per volume over the free allowance, or has extra fees.” On bulk send, in other words, the tier is the entry fee rather than the whole price.

Xodo Sign, formerly eversign, is the other feature-gated case, and the one that inverts the usual trade. Its pricing page lists Basic at “$10” “/mo” “(Billed yearly)” with “Unlimited Documents” — “Send and collect an unlimited number of signed documents each month” — which makes it the cheapest unmetered sending on this page. What the entry plan meters instead is everything around the send: “3 Templates”, and no bulk sending, no custom branding, no in-person signing. Those arrive on Professional at “$16” “/mo” billed yearly, alongside “Unlimited Templates”, “10 Bulk Sending credits” and “10 SMS Credits”. Its FAQ prints the monthly column the cards leave out — “Basic costs $20 per user per month, or $10 per user per month with yearly billing. Professional costs $32 per user per month, or $16 per user per month with yearly billing” — and describes a free plan that has no card on the page at all: “The Free plan includes up to 5 documents per month (1 document every 7 days).” The structured data embedded in that same page still gives that figure as three, so confirm it against your own account rather than either number.

None of those is a criticism. They are six different, defensible ways to build a price list — and the difference between them matters to you, because a volume cap and a feature gate fail in different ways. A volume cap bites when you grow busier; a feature gate bites the day you need one specific thing. The point is that the number in the first column answers a different question from the one you are asking.

The two questions that actually decide the cost

1. Is volume metered, and where? Ask what the limit is called — envelopes, invites, sends, transactions, automation runs — and whether it resets monthly or yearly, per user or per account. Then multiply your realistic monthly volume by twelve and compare. Below the allowance, a metered plan can be genuinely cheap. Above it, the headline price stops being the price.

2. Is the feature you came for on the tier you are pricing? Branding, templates, reminders, integrations, API access and bulk send are commonly gated a tier up. Price the plan that contains the thing you actually need. And check whether upgrading for one feature upgrades one seat or all of them — that difference can be larger than the price difference itself.

Everything else — the interface, the onboarding, the marketing — is a rounding error next to those two.

Per seat or per envelope: which model actually costs you less

Strip the plan names away and there are only two ways you will actually be charged for e-signature. They meter opposite things — and a third model buyers brace for does not exist at all.

Per seat charges for the people who send. Cost tracks headcount — ten senders cost ten times one sender, whether each of them sends five documents a month or five hundred. Volume is the thing you are not paying for.

Per envelope — also sold as invites, sends, transactions or credits — charges for the documents that go out. Cost tracks usage — two people sending four hundred documents pay more than ten people sending forty. Headcount is the thing you are not paying for. It is the default across an entire market: all four platforms a Brazilian buyer shortlists price this way, which we set out in e-signature in Brazil.

Not per signer. The third model is not in this category at all. No mainstream vendor charges the people who receive and sign: signers pay nothing and need no account, on our plan and on every competitor’s. Xodo Sign’s pricing FAQ says it in one line — “People who receive your documents do not need a paid seat or a Xodo Sign account to sign” — and we set out the rest in each vendor’s own words in DocuSign vs SignWell pricing and why DocuSign is so expensive. It is worth settling, because assuming otherwise inflates your own estimate: recipients are not the unit. Per DocuSign’s published terms, “Regardless of how many documents, fields and signers a given envelope contains, it still counts only once towards your eSignature plan’s Envelope allowance once it is sent out for signature” — a package sent to four people is one envelope, not four. Count what you send, never who receives it.

Most vendors are one, the other, or a seat licence with an envelope meter bolted onto part of it. That hybrid is why the DocuSign wording quoted above can promise unlimited sending and cap sending at a hundred a year on the same plan without contradicting itself: the web-app send is priced per seat, and the automated send is priced per envelope.

Neither model is a trick and neither is better in the abstract. They fail in opposite directions, and the shape of your own traffic decides which failure you would rather have.

One division settles which side of that you are on. Take the send volume you realistically expect over a year, and divide it by the number of people who will be sending. That gives you documents per sender per year, and it is the only number the two models disagree about. Hold it against the meter on the plan actually in front of you — the vendor allowances quoted above are published per user per year or per seat per month, so they compare against it directly.

Two ways that division goes wrong. Do it per sender rather than per account, because published meters are usually per user, and an allowance you assumed was pooled across the team usually is not. And run it on your busiest quarter rather than your average month, because a meter binds when you are busiest — which is exactly when being interrupted costs you the most.

How volume pricing usually works, and how it can work

Within the per-seat model, most tools charge one flat rate. Twenty seats cost twenty times one seat. Growing your team is straightforwardly linear, and the only lever is negotiating an enterprise contract once you are big enough for anyone to care.

It does not have to work that way. Signatura’s rate glides down as the team grows, and the lower rate applies to every seat, not only the ones above a threshold: from $24 per seat per month on annual billing down to about $11 at fifty seats ($32 down to $14 on monthly). You can check the arithmetic on the pricing page — the calculator shows the rate for any headcount.

The other half is that there is nothing above you to buy. One plan, everything included: custom branding, custom email templates, unlimited templates, all nine field types, the full audit trail, team management, and unlimited documents with no per-document charge. There is no tier that unlocks the feature you needed, because there is no tier.

We are not the cheapest headline price and we do not try to be. The claim is narrower and more useful: once you price the plan you would genuinely be on, for the seats you would genuinely have, the comparison often goes the other way.

What we are not

If you send fewer than a handful of documents a month, a free tier or a metered plan will cost you less than we will, and you should use one. If you need a proposal builder with pricing tables and a content library, that is a different category of product. And if you need a Qualified Electronic Signature under EU member-state law, that requires a Qualified Trust Service Provider, which we are not.

Frequently asked questions

What is the cheapest way to get a legally binding e-signature?

For a single document, free. Validity comes from the ESIGN Act and UETA in the US and eIDAS in the EU — it depends on intent, attribution, consent and retention, not on paid software. A free tier can produce a binding signature. What paid tools add is evidence: an audit trail and tamper-evidence that matter if the signature is ever challenged.

What is the cheapest e-signature plan you can actually buy?

On the six pricing pages read for this article, the lowest paid entry point is BoldSign’s Growth at “$5” “/month/user” on yearly billing — “$15” on monthly — capped at “50 envelopes/month/user”; its free Essential plan sends “25 envelopes/month” at “$0”. Then SignNow’s Business at “$8 per user per month” annually, on a page that also states “signNow users are limited to 100 envelopes/invites per user/year” on every tier including Enterprise; Xodo Sign’s Basic at “$10” “/mo” “(Billed yearly)”, the cheapest here that includes “Unlimited Documents”; Signeasy’s Personal at “$10” ”/ month/seat” for “Send 5 contracts for signature monthly”; and DocuSign’s Personal at “$11” “/month” for “Send 5 envelopes per month”. Every one of those is an annual-billing price, and several roughly double or triple without the annual commitment. Cheapest to buy and cheapest to run are different questions — the two questions above decide the second one.

Are free e-signature tools legally binding?

Yes, on the same statutory terms as paid ones — nothing in ESIGN or eIDAS conditions validity on what you paid. The practical differences are volume limits, whether you get a usable audit trail, and what happens to your completed documents if you stop using the service.

Why is the cheapest plan often not the cheapest?

Because entry tiers are usually limited in volume, features, or both, and those limits are set out on the vendor’s own pricing page rather than in the headline. Per their published pricing, BoldSign’s $5 Growth plan allows 50 envelopes a month per user and puts unlimited sending on the $15 tier above it, SignNow caps invites at 100 per user per year across every plan, Signeasy’s $10 Personal plan sends five contracts a month, Xodo Sign’s $10 Basic plan does include unlimited documents but limits you to three templates and puts bulk sending and custom branding a tier up, and PandaDoc lists custom branding and bulk send above its entry plan. None of it is hidden — but none of it is in the first number you see.

Does a cheaper e-signature make a contract less enforceable?

No. Enforceability is a question of law, not of price. What varies with the tool is the strength of the evidence behind the signature, which matters only when someone disputes it — see legal validity versus proving it later.

How do I compare e-signature pricing properly?

Take your realistic monthly send volume and your actual headcount, list the two or three features you genuinely need, then price the plan on each vendor’s site that contains those features at that headcount. Compare those numbers, not the entry prices. Vendors change plans often, so check current terms before deciding.

What is the best way for a small business to sign documents?

Match the method to your volume. If signing is occasional — a lease here, a contractor agreement there — a free route covers one document at a time and costs nothing to try. The day sending becomes routine, the best way is a per-seat tool without a send meter, chosen with the two questions above and the five criteria in how to choose a DocuSign alternative; the mechanics — upload, place fields, send, signers need no accounts — are in how to send a document for someone else to sign. What a small business should refuse to buy: per-envelope anxiety, and features gated two tiers above the one you can afford.

Can I add users to an e-signature plan mid-contract?

Adding, almost always yes — per-seat vendors welcome mid-term additions and pro-rate them. The asymmetry to check before signing is the other direction: seat reductions usually wait for renewal, so a team that staffs down mid-year keeps paying for the empty chairs. Get both answers in writing — can I add seats mid-term, at what rate, and when can I reduce — alongside the volume questions above. Signatura, for its part, is per-seat with additions whenever you hire.

Is e-signature pricing per seat or per envelope?

Both models are in the market, and many vendors run both at once. Per-seat pricing charges for each person who sends and leaves volume unmetered; per-envelope pricing charges for each document sent and leaves headcount unmetered. The common hybrid does both at once, and DocuSign runs it two different ways depending on the market: its US plans sell a seat and then allow “a total of 100 envelopes per user per year” against it, with per-envelope charges above that, while its Canadian plans leave ordinary web-app sending uncounted and meter only bulk send, PowerForms, Web Forms and API sends against a separate “automation send allowance”. Work out which of the two your own traffic is heavier in before comparing any two headline prices.

Which is cheaper, per-seat or per-envelope e-signature pricing?

Divide the send volume you realistically expect over a year by the number of people who will be sending. A high documents-per-sender figure favours per seat, because volume is what you are not paying for. A low one favours per envelope, because headcount is what you are not paying for. The crossover sits wherever the meter sits on the plan you are actually being offered, so run the division against that specific published allowance rather than a rule of thumb — and run it on your busiest quarter, because that is when a meter binds. Signatura is per seat, with unlimited documents and no per-document charge.


Figures for other vendors are taken from those vendors’ own published pricing pages on the check date shown at the top of this page, with the one exception noted above, and they change frequently — check current plans before deciding. Signatura’s own pricing is on our pricing page.

Sources: BoldSign pricing · Xodo Sign (formerly eversign) pricing · SignNow plans and pricing · Signeasy pricing · DocuSign eSignature plans and pricing, US page · the same page for Canada · PandaDoc pricing (unreachable on the re-check date; prices last read 8 August 2026) · PandaDoc plan comparison · ESIGN Act, 15 U.S.C. § 7001

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This article is general information, not legal advice. For how a specific document or jurisdiction applies to you, consult a qualified professional.