Understanding The SaaS Subscription Payment Landscape

July 26, 2020

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Understanding the SaaS Payments Landscape | Payment Gateways - Key Players | Subscription Billing Key Players | Sales Tax Compliance Key Players | Merchant of Record Key Players

Trying to figure out how to collect and manage subscription payments for your SaaS? The array of options, each with subtle variations in available features, can be confusing is very confusing.

This post will clear up some of the confusion around subscription billing for SaaS companies. It will also outline the key players and their capabilities.

Understanding the SaaS Payment Landscape

To begin, let's clarify some important terminology concepts.

Payment Gateway

[According to investopedia]:

A payment gateway is a technology used by merchants to accept debit or credit card purchases from customers

This isn't that clear, so let's get into more terminology and look at a diagram:


"The Merchant" is a fancy way of saying you, i.e. an online business selling stuff.

The issuing bank aka issuer

The bank that a customer's credit/debit card is from - usually a major commercial bank.

The acquirer aka the acquiring bank

The acquiring bank processes payments on your behalf, and offers you what is known as a merchant account

Here's a diagram of the whole sequence:

payment gateway diagram

Role of the payment gateway

There is an important distinction between a payment gateway and an acquiring bank (and the merchant account it provides you with), but for a lot of SaaS companies starting out this is obscured. For example, Stripe is both a payment gateway and a merchant account. Fundamentally, the payment gateway and the merchant account work together to conduct end-to-end payment processing. This means that you do not need to have a relationship with merchant banks yourself, nor with credit card companies like American Express.

A crucial service that payment gateways offer is taking care of compliance requirements around payments, notably PCI compliance, which is notoriously difficult to roll yourself.

If you're running a SaaS company, you still have three key issues to consider beyond a payment gateway:

  • Subscription Management
  • Recurring Billing
  • Sales Tax & Value Added Tax

Subscription Management & Recurring Billing


Subscriptions are the lifeblood of SaaS companies, producing the coveted Monthly Recurring Revenue (MRR). Whilst on the surface they can appear simple, there is a lot of logic involved in managing subscriptions such as:

  • Managing trials
  • Issuing refunds
  • Dunning (a fancy name for retrying failed payments)
  • Making changes to ongoing subscriptions
  • Canceling

Many of these areas are crucial to get right for SaaS companies - slick free trials, elegant upgrades, monitoring churn, and gathering feedback during a cancellation to name a few.

Recurring Billing

Slightly different from subscription management is recurring billing. This is the process that allows a business to invoice customers on a regular basis.

To make things more confusing, many payment gateways offer elements of subscription management and recurring invoicing. For example, the Stripe Billing product works hand-in-hand with Stripe Payments to offer a robust subscription management solution and a basic recurring billing capability. However recurring billing can get extremely complex, and as a result there are a vast array of dedicated SaaS "Subscription Billing & Revenue Operations" companies that aim to assist with this complexity. We'll look at some of the key players in a moment.

In case it wasn't clear, not all billing systems can handle subscription payments - instead just covering the basics of a billing system such as managing billing cycles and invoicing.

Sales Tax & Value Added Tax

Many of the big payment providers provide no assistance when it comes to calculating requirements such as EU Value Added Tax (EU VAT), US sales tax, and more exotic offerings such as Japan's "consumption tax", or India's GST. This in turn has resulted in many dedicated companies that provide services such as verifying that a customer's IP address and credit card billing details are from the same country (required for EU VAT calculations).

If piecing together all these components to form a payment stack sounds like a lot of work to you, you're not alone. That explains the final category to highlight: The Merchant of Record.

Merchant of Record

A merchant of record basically does it all for you: They act on your behalf not only to collect payment (i.e. acting as the payment gateway) but also to calculate the appropriate tax and crucially to also remit that tax to the appropriate government for you. In other words, this is a kind of authorized reseller relationship

merchant of record diagram

Source: paddle.com

What SaaS Businesses Need

If you are collecting recurring payments for your SaaS, you're likely to need a combination of both payment gateway, subscription management + billing, and probably sales tax compliance. Many of the players we are about to discuss operate a hybrid model where they offer solutions across the different categories defined above. Each has its strengths and weaknesses, which we will look into next. Needless to say, the sheer range of options can be overwhelming. Here is a graphic to give some perspective.

Note: feature/pricing not to scale

SaaS payment options diagram

Payment Gateway Key Players


PayPal homepage

Since the dawn of time (well, 1998) PayPal has been a leading player in the online payments arena.

  • Acts as a merchant account
  • Integrates with PayPal Subscriptions
  • V. easy to find tutorials and/or hire assistance as this is the most common tool used for collecting payments
  • No setup fees
Costs (fees)
  • 2.9% + $0.30 per transaction (within the US)
  • 4.4% + $0.30 per transaction (outside the US)

Stripe Payments

Stripe Payments Homepage

It's pretty crazy to think that the mighty Collison brothers launched Stripe as recently as 2011. It's now established itself as the go-to payment gateway for developers, offering a very high quality of API and documentation. Plus it integrates seamlessly with Stripe's ever-expanding ecosystem. Key features:

  • Includes merchant account
  • Extensive set of APIs (developer-friendly) = Stripe ecosystem which includes subscription management (via Stripe Billing)
  • No setup fees
Costs (fees)
  • 2.9% + $0.30 per transaction (non-European cards)
  • 1.4% + $0.30 per transaction (European cards)

Honorable Mentions

  • GoCardless
  • Authorize.net
  • 2Checkout
  • Braintree (owned by PayPal)

Subscription Billing Software Key Players

Stripe Billing

Stripe Billing Homepage Stripe billing is basically the subscription business basic payments toolkit. It covers probably 80% of small businesses' needs. When you start needing a more complex subscription management platform then some of the other software companies in this list are where you would look.

Nonetheless, Stripe Billing offers a respectable feature set for a variety of business models, notably:

  • Variety of subscription pricing models (including usage-based)
  • Promotions and trial periods
  • Can customize billing frequency
  • PSD2 compliance
  • Variety of payment options
  • Dunning
  • Integrations (including Salesforce)
  • Multiple subscription plans (plus upgrades and downgrades)
  • Basic billing process
Costs (fees)
  • On top of Stripe payment costs, Stripe charges 0.5% for recurring charges

In the online payments space, perhaps the most opaque players to the layperson are the specialist recurring platforms. These are the guys that add extra functionality required for a complex billing model - bells and whistles like credit notes, multilingual invoices, wide currency choices, and automated reconciliation. Let's look at some of them now.


Chargebee Homepage

Chargebee is the sort of subscription management software you look at when you have annual recurring revenue (ARR) in the $1M - $20M range, although they do have a nice [intro deal] (https://www.chargebee.com/launch/?ref=pricingPage) for startups.

Key Benefits

  • Flexible automated billing software platform
  • Subscription management
  • Revenue recognition & reporting
  • Dunning management
  • ACH direct debit payments (via Stripe)
  • Multilingual pages and invoices
  • 100+ supported currencies
  • Comprehensive analytics and subscription management product
  • Can handle tax calculation across multiple regions

It's important to note that Chargebee does not ship with a payment gateway, so you need to factor that in.

Costs (fees)
  • $299 - $599 + 0.6%-0.9% of revenue depending on the number of users, tax profiles and payment methods


Chargify Homepage

Chargify is another platform for handling advanced billing & revenue management for B2B SaaS.

Key Benefits of Chargify Include:

  • Flexible automated billing platform
  • Subscription management
  • Multi-gateway support
  • iPhone App
  • Dunning management
  • Revenue recognition & reporting
  • Easily experiment with multiple different product offers - tweaking product, price and service
  • Strong analytics

Like Chargebee, they also expect you to integrate with a payment gateway of your choice.

Costs (fees)
  • $299 - $499 + 0.9%-1% of revenue


Recurly Homepage

Recurly offers a variety of billing solutions for subscription billing such as:

  • One-time charge pricing model (e.g. $550 for as an initial setup fee for a new security system)
  • Usage-based model (e.g. $55/month plus $0.03 per transaction)
  • Seat-based model (e.g. $15/user per month for access to a SaaS tool)

Plus the basic fixed recurring model which you get from the likes of Stripe Billing. Because of this flexibility, ecommerce (particularly SaaS) companies tend to use Recurly on top of an existing payment gateway and/or subscription management system.

  • Recurly

Honorable Mentions

  • Zuora
  • Cheddar
  • killbill (open-source)
  • Moon Clerk
  • Zoho Subscriptions

VAT & Sales Tax Compliance Key Players

Payment gateways mostly do not automate the calculation of sales tax and VAT for you. This means that you can:

  • Pay the extra for a full-blown subscription & billing management system
  • Integrate with a dedicated VAT & Sales Tax compliance platform or API
  • "Roll your own" (usually not a practical option)

Dedicated sales tax platforms can vary from simple APIs through to complex SaaS tools that integrate with your checkout and manage the invoice generation lifecycle.

The deal with these types of tools is that they only help you with sales tax/VAT/GST compliance. So you need to integrate them with your existing payment gateway and (if applicable) subscription management platform.


Quaderno Homepage

Quaderno has carved a decent reputation for itself in this niche. It calculates:

  • US Sales Tax
  • EU VAT (Required for all customers in Europe, not just Europe-based businesses)
  • GST (Indian sales tax)
  • And many more exotic taxes such as Moldovan VAT

To be clear, it calculates the taxes, integrates with Stripe or PayPal checkouts to apply correct pricing in real-time at checkout, and then provides you with ready-to-submit tax reports. However, it does not remit the taxes for you

  • $49 - $149 per month, depending on the number of transactions.


Taxjar Homepage

TaxJar is more US-focused, but still can be useful for international businesses. Key benefits:

  • Sales tax reporting and filing (you pay extra for filing)
  • Can provide EU VAT reports (but won't do the filing for you)
  • One of the key players so documentation and support is OKish (although I had to get on the phone to them to answer a few basic questions).
  • $19 - $99 per month, ominously subtitled with "based on monthly orders"

Honorable Mentions

  • Octobat another official Stripe partner
  • PayHip hidden gem
  • Taxify
  • Avalara
  • VATStack - API solution
  • VAT Layer - API solution
  • Taxamo

Merchant of Record Key Players


Paddle has become ultra-popular with bootstrappers due to its all-in-one capabilities. It's a stricter approach to vetting businesses means that it has upset fewer people with sudden account closures giving them a Trustpilot score of 4.8.

Key Benefits

  • They handle all payment collection, invoicing, compliance and remitence on your behalf in exchange for higher fees...
  • ...Fees which are lower than most of the competition

Though Paddle may seem like a great option, you are cautioned to carefully review their extensive prohibited list, which is one of the more ambiguous documents on the internet.

  • They don't advertise this on their website, but if you jump through the email contact hoops the answer is 5% + $0.50 (as of July 2020)


FastSpring has been around for longer, but their more permissive approach to vetting businesses seems to have worked against them with a TrustPilot score of 2.4 which is low enough to give any business owner pause. This poor customer experience is unlikely to be due to a dearth of add-ons and seems to stem more from aggrieved customers who found their accounts suspended unexpectedly.

  • 5.9% + $0.95 per transaction

Honorable Mentions

  • Gumroad
  • Digital River
  • 2Checkout


The merits of different payment platforms have been debated in key developer watering holes on a number of occasions. Here are some of the most illuminating discussions:

Hopefully, this post has helped clarify the strange world of SaaS billing and payment processing.

All the platforms and tools referenced in this post can now be found awesome-saas-payments GitHub repo.

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