The electronic signature has become a staple of the modern business world, being used on everything from contracts and NDAs through to HR forms and supplier contracts. However, with UK SMEs, there is a crucial decision still to be made: are you going to be billed per signature, or per month?
This comparison highlights the costs of pay-as-you-go and subscription-based e-signature services, helping you understand how Inkless breaks down their pricing for occasional and expanding businesses.
Understanding the two pricing models
Pay-as-you-go e-signatures
With pay-as-you-go, you only pay when a document is sent for signing. There is no ongoing commitment, which makes it attractive for businesses with very low or irregular usage.
This model typically suits:
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Sole traders or micro businesses
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Companies that only send contracts occasionally
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Seasonal businesses with long quiet periods
However, per-signature costs can add up quickly once usage increases.
Subscription e-signatures
A subscription plan usually involves a fixed monthly or annual fee, often covering a set number of documents or offering unlimited signing.
Subscription models work well for:
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SMEs with regular document workflows
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Teams that need shared access and admin controls
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Businesses planning to scale
Inkless offers both pay-as-you-go and subscription pricing, allowing SMEs to choose the model that best matches their usage. You can see the full breakdown on the e-signature pricing page.
What actually drives cost for SMEs
The biggest cost factor is not the plan name, but how often you send documents.
Before choosing a pricing model, consider:
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Average number of documents sent per month
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Whether multiple team members need access
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If you need templates, audit trails or bulk sending
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How much admin time manual signing currently takes
If you are unsure how digital signing fits into your workflow, the How Inkless e-signatures work page explains the process step by step.
The break-even point explained simply
A useful way to compare pricing models is to calculate your break-even point.
Break-even signatures per month = monthly subscription cost ÷ pay-as-you-go cost per signature
If you regularly exceed this number, a subscription will usually save money. If you stay below it, pay-as-you-go may be more cost effective.
Inkless pricing is designed to keep this break-even point realistic for SMEs, so businesses can move from pay-as-you-go to subscription without a sudden jump in costs. Current options are outlined clearly on the Inkless pricing page.
Why features matter, not just price
Focusing only on per-signature cost can be misleading. Subscription plans often include features that reduce admin time and improve accuracy.
For example:
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Reusable document templates
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Centralised audit trails
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Team-level user management
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Faster turnaround on agreements
These features are detailed on the Inkless e-signature features page and can significantly reduce operational overhead, especially for growing SMEs.
Pay-as-you-go vs subscription: a quick comparison
Pay-as-you-go:
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No monthly commitment
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Ideal for very low usage
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Higher cost per document at scale
Subscription:
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Predictable monthly spend
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Lower effective cost per signature
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Better suited to regular workflows
For many SMEs, pay-as-you-go is a sensible starting point, while subscription plans deliver better long-term value as document volumes increase.
Which option is right for your business?
Pay-as-you-go is often best if:
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You send only a handful of documents per month
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Usage is unpredictable
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You want to test e-signatures before committing
A subscription is usually better if:
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You send documents weekly or daily
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Multiple people need access
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You want to automate and standardise workflows
If you are unsure which option fits your business, you can review pricing in detail or speak to the Inkless team for a tailored recommendation.
Final thoughts
There isn't a right or wrong answer here. It depends on the frequency with which you are sending out documents, as well as the importance you put on automation and admin efficiency.
Inkless makes this process easier for you by providing flexible pricing options for SMEs in the UK to scale from small to large. The easiest way to figure out which one will be cheaper for you is to compare your document print volume to the plans available.