
Costs and pricing
Before you price a subscription product, work out what it really costs
A cost guide for subscription commerce in England, covering platform fees, payment charges, compliance duties, VAT and how to model costs before pricing.
What to take away
- Most subscription commerce teams set a price from what competitors charge, then work backwards to a margin. Reverse it: build the cost model first, then test whether the price the market will bear clears it.
- The costs that break subscription budgets are rarely the headline platform fee. They are payment charges on failed retries, dunning and recovery tooling, support time per subscriber, and VAT treatment you did not plan for.
- Recurring revenue hides cost drift. A cohort that looked profitable in month two can be loss-making by month eight once churn, recovery costs and service contacts are allocated properly.
- Consumer law and advertising rules apply to how you present the price and any free trial, not just to the product itself.
- Build the model in a spreadsheet your finance lead can audit, and review it against actuals every quarter.
The most common mistake is to price from the market inwards. A team sees rivals charging £9.99 a month, matches it, and only later discovers that payment fees, recovery tooling and support leave under £3 per subscriber before any acquisition cost. By then the price is public and hard to move.
This guide sets out what a subscription business in England should cost out before it sets or changes a price. Every figure below is labelled as illustrative unless a named source is cited.
Start with the cost lines, not the price
A subscription cost model has four layers. Keep them separate, because they behave differently as you scale.
Four Subscription Cost Layers
Cost to acquire
- Paid media
- Yes
- Payment processing
- No
- Dunning and recovery
- No
- VAT registration
- No
- Support contacts
- No
- Retention discounts
- No
Cost to serve
- Paid media
- No
- Payment processing
- Yes
- Dunning and recovery
- No
- VAT registration
- No
- Support contacts
- Yes
- Retention discounts
- No
Cost to retain
- Paid media
- No
- Payment processing
- No
- Dunning and recovery
- Yes
- VAT registration
- No
- Support contacts
- No
- Retention discounts
- Yes
Cost to comply
- Paid media
- No
- Payment processing
- No
- Dunning and recovery
- No
- VAT registration
- Yes
- Support contacts
- No
- Retention discounts
- No
Cost to acquire. Paid media, affiliate commission, referral credit, and the staff time to run campaigns. This is usually the largest single line for a new subscription brand and the one most often left out of pricing decisions.
Cost to serve. Payment processing, platform or billing software, hosting, content or product delivery, and customer support contacts per subscriber per month.
Cost to retain. Dunning and payment recovery, retention offers, lifecycle messaging, and the discounts you hand out to stop cancellations.
Cost to comply. Accounting, VAT registration and filing, legal review of terms and promotions, and any regulatory assurance you choose to buy.
For a worked example, a small team with 1,200 active subscribers on a £15 monthly plan might see £4,800 a month in platform and payment costs, £2,400 in support, and £900 in recovery and retention tooling. That is £6.75 per subscriber before acquisition and overheads. The plan is not viable at £15 unless acquisition cost per retained subscriber stays low.
How you structure the plan itself changes which lines dominate. Annual prepay shifts cash forward but increases refund exposure, while monthly plans raise payment failure rates and therefore recovery costs, so model the structure you intend to sell rather than a generic monthly plan.
Platform, payment and recovery costs
Platform fees are the easiest line to quote and the least useful on their own. Most billing platforms charge either a percentage of recurring revenue, a flat monthly fee tiered by subscriber count, or a mix. A platform taking 1.5 per cent of revenue on a team billing £18,000 a month costs £270.
Payment processing sits underneath that. Card fees are typically a percentage plus a fixed pence amount per transaction, so small basket values carry a disproportionate fixed cost. Failed payments are the sting: a retry that succeeds still incurs a processing cost, and a retry that fails still consumes recovery tooling and support time.
Recovery tooling is often priced per recovered subscriber or as a revenue share. For example, a recovery vendor taking 25 per cent of recovered revenue on £2,000 of monthly failed payments returns £1,500 to the business and keeps £500.
Support is the line teams underestimate most. If a subscriber contacts support once every four months at a fully loaded cost of £6 per contact, that is £1.50 per subscriber per month. Raising prices without improving self-service tends to increase contact rates, not reduce them.
These indirect lines are where subscription commerce budgets leak. Recovery tooling, the support time a failed payment generates, and the discount you hand over to save a cancelling subscriber rarely make it into the first draft of a cost model, and they start to bite only after the first few billing cycles.
Compliance and regulatory costs you must budget for
If you promote a free trial or a discounted first period, the presentation of that offer is regulated. The advertising codes published by the ASA and CAP set out the rules applying to subscription promotions, pricing claims and free trials, including how prominently material conditions must appear.
The underlying consumer protection framework matters too. The explanatory memorandum to the Consumer Protection from Unfair Trading Regulations 2008 gives the context for what counts as a misleading commercial practice, which is the standard your checkout and cancellation flow will be judged against.
The rest of the framework carries its own review cost. The Consumer Rights Act 2015 sets the standards your product or service has to meet and the remedies subscribers can claim, and the subscription contract provisions of the Digital Markets, Competition and Consumers Act 2024, which the Competition and Markets Authority will enforce, add requirements on renewal reminders and cancellation routes. Budget a review of your sign-up, trial and cancellation flows against both, not only of the advertisement.
Budget for legal review of your terms, your trial-to-paid journey, and any promotional claim. A one-off review with a solicitor might cost £1,500 to £4,000 depending on complexity, with periodic updates thereafter.
If you sell to other businesses as well as consumers, your outbound email and direct marketing fall under separate guidance. The ICO's business-to-business marketing guidance explains when B2B messages are treated as electronic marketing and what consent or soft opt-in position applies.
Some subscription businesses seek formal regulatory assurance through the Primary Authority scheme, which gives coordinated advice across local authorities. GOV.UK explains how the Primary Authority scheme works and which regulators participate. It is optional, but it converts unpredictable enforcement risk into a known cost.
VAT, accounting and the cash-flow trap
VAT is the line most likely to turn a profitable-looking plan into a loss-making one. If you are VAT registered, the price you advertise to consumers is normally treated as VAT-inclusive, so roughly one sixth of a £15 monthly plan is output tax, not revenue.
VAT Eats One Sixth of Price
- £15advertised monthly plan, VAT-inclusive
- £12.50net revenue after 20% VAT
- £6.75cost to serve per subscriber
- £5.75contribution before acquisition
At 20 per cent, a £15 plan yields £12.50 of net revenue. If your cost to serve is £6.75, your contribution is £5.75 before acquisition. That is a materially different picture from the one the headline price suggests.
Cash flow adds a second trap. VAT collected on monthly plans is owed to HMRC on your return cycle, but recovery costs and platform fees are paid as they arise. Fast-growing subscription businesses can be cash-negative even when the cohort is profitable on paper.
Accounting costs scale with transaction volume, not just revenue. A bookkeeper handling a few hundred recurring invoices a month might charge £250 to £500 monthly, rising with subscriber count and multi-currency complexity.
If you sell into the EU, VAT registration thresholds and one-stop-shop filings add both cost and administrative time. Model these before launch, not after.
Getting the model into a repeatable format makes the rest of this easier. Keep the four layers as rows in one sheet, with single input cells for price, active subscribers and churn, so finance can re-run the whole model in minutes instead of rebuilding it each quarter.
How to build the cost model
Work in this order, and keep every assumption in a single cell you can change.
- Fix the price points and the billing period you are testing, and write the monthly equivalent of each so annual and monthly plans can be compared on the same sheet.
- Split every cost into the four layers, and label each line as fixed, per subscriber, or linked to revenue.
- Enter the unit assumptions you are prepared to defendactive subscribers, support contacts per subscriber, payment failure rate, and refund or chargeback rate.
- Calculate cost to serve and cost to retain per subscriber per month.
- Strip VAT out of the advertised price to get net revenue per subscriber.
- Calculate contribution per subscriber per month and compare it with each price point you are testing.
- Spread acquisition cost over your measured median subscriber lifetime, not over an assumed one.
Build the Cost Model in Order
- Set billing period and gross VAT-inclusive price
- Strip out VAT to get net revenue
- Add platform, payment and recovery percentages
- Add per-subscriber support and delivery costs
- Add fixed monthly costs divided by subscribers
- Amortise compliance and legal costs
- Spread acquisition cost over expected lifetime
Step seven is where most models fail. Spreading acquisition cost over a twelve-month assumed lifetime when actual median lifetime is five months understates the true cost per retained subscriber by well over half.
Run the model at three price points and three churn assumptions. If the plan only works at the most optimistic combination, the price is wrong or the cost base is.
When you have a working model, test it against return assumptions. Our guide to subscription commerce return on investment explains how to compare payback periods across acquisition channels using the same cost lines.
Benchmarks and demand signals
Pricing decisions need a demand view, not just a cost view. The ONS publishes detailed retail and online spending datasets in its Retail Sales Index reference tables, which are useful for framing how household spending on subscription-style services moves against broader retail trends.
Contribution Across Three Price Points
Plan A £8/month
- Gross revenue
- £8,000
- Net of VAT
- £6,667
- Platform and payment
- £240
- Support and delivery
- £2,800
- Recovery and retention
- £320
- Contribution per subscriber
- £3.31
Plan B £15/month
- Gross revenue
- £15,000
- Net of VAT
- £12,500
- Platform and payment
- £450
- Support and delivery
- £3,600
- Recovery and retention
- £600
- Contribution per subscriber
- £7.85
Plan C £29/month
- Gross revenue
- £29,000
- Net of VAT
- £24,167
- Platform and payment
- £870
- Support and delivery
- £5,400
- Recovery and retention
- £1,160
- Contribution per subscriber
- £16.74
Use these as context, not as a forecast for your category. A category growing in the index does not mean your price point is achievable; it means the tide is not against you.
For a worked benchmark, consider three illustrative plans at 1,000 subscribers each:
Plan A £8/month
- Gross monthly revenue
- £8,000
- Net of 20% VAT
- £6,667
- Platform and payment (3%)
- £240
- Support and delivery
- £2,800
- Recovery and retention
- £320
- Contribution before acquisition
- £3,307
- Contribution per subscriber
- £3.31
Plan B £15/month
- Gross monthly revenue
- £15,000
- Net of 20% VAT
- £12,500
- Platform and payment (3%)
- £450
- Support and delivery
- £3,600
- Recovery and retention
- £600
- Contribution before acquisition
- £7,850
- Contribution per subscriber
- £7.85
Plan C £29/month
- Gross monthly revenue
- £29,000
- Net of 20% VAT
- £24,167
- Platform and payment (3%)
- £870
- Support and delivery
- £5,400
- Recovery and retention
- £1,160
- Contribution before acquisition
- £16,737
- Contribution per subscriber
- £16.74
All figures are illustrative. The pattern matters more than the numbers: contribution per subscriber does not scale linearly with price, because support and delivery costs rise with the depth of the product, not the size of the invoice.
A scoring rubric for pricing decisions
Use this to pressure-test a proposed price before you publish it. Score each row from 1 to 5, then apply the weight shown.
Pricing Decision Scoring Rubric
- Contribution margin after variable costs25% weight
- Acquisition payback period20% weight
- Price sensitivity evidence15% weight
- Compliance review completed15% weight
- VAT and cash-flow impact modelled15% weight
- Ability to change price later10% weight
- Contribution after VAT (weight 25 per cent).Score 5 when contribution per subscriber clears the full cost to serve and retain at the price you are testing; 1 when it does not clear cost to serve at all.
- Acquisition payback (20 per cent).Score from observed data: 5 when payback falls inside your target number of months, 1 when it works only on an assumed lifetime you have never measured.
- Retention (20 per cent).Score on measured median lifetime and churn trend, not on the retention you hope a price change will buy.
- Payment failure and recovery (15 per cent).Score on the failure rate you actually see and the cost of the retries and dunning that follow it.
- Compliance readiness (10 per cent).Score 5 when terms, trial presentation, VAT treatment and the cancellation route have all been reviewed, 1 when none has.
- Cost drift (10 per cent).Score on how far platform, support and recovery costs have moved over the last twelve months.
A total below 3.0 weighted means the price is not ready. Between 3.0 and 4.0, proceed with a review date. Above 4.0, publish and monitor actuals monthly for the first two quarters.
Score honestly. The rubric is only useful if the acquisition payback row uses observed data rather than a target.
Where budgets usually go wrong
Three patterns recur.
First, acquisition cost is treated as a marketing budget rather than a cost of revenue. It belongs in the unit economics, spread over expected lifetime, not held in a separate spreadsheet that never meets the cost model.
Second, churn is assumed rather than measured. If you do not know your median subscriber lifetime, you cannot allocate acquisition cost correctly, and every downstream margin figure is wrong.
Third, compliance and accounting are treated as one-off setup costs. They recur: terms change, promotions change, VAT rules change, and each change carries a review cost.
If you operate in England, review the model against your own demand data rather than a category trend, and re-run it before every price change rather than after. The four layers, not the headline price, tell you how much headroom you have.
Review the model quarterly against actuals. A subscription business that only revisits its cost base when it raises prices is running on stale assumptions, and the gap between modelled and actual contribution is where the margin quietly disappears.
Common questions
What percentage of subscription revenue should go to platform and payment costs?
For most small and mid-sized subscription businesses, platform and payment costs together land between 2 and 5 per cent of gross revenue. Recovery tooling on top can add another 1 to 3 per cent where failure rates are high. Treat these as illustrative ranges and replace them with your own vendor quotes.
Do I need to charge VAT on a monthly subscription in England?
If your taxable turnover exceeds the registration threshold, you must register and account for VAT. Prices shown to consumers are normally treated as VAT-inclusive, so a £15 plan contains roughly £2.50 of output tax at 20 per cent. Check your specific position with an accountant.
How often should I reprice a subscription product?
Annually at minimum, and whenever a major cost line moves by more than 10 per cent. Existing subscribers are usually protected by your terms, so changes apply to new sign-ups first. Model the revenue effect before announcing anything.
What is the biggest cost mistake subscription businesses make?
Leaving acquisition cost out of the unit economics. When it is spread over an assumed lifetime that is longer than the real one, every margin figure downstream is overstated, and pricing decisions are made on a number that does not exist.
In this guide
- Illustrative subscription commerce budget for EnglandAn illustrative subscription commerce budget for an England-based operator, with monthly cost assumptions, UK VAT treatment and a CPI-based renewal method.
- Choosing subscription commerce pricing models without guessing at marginsCompare flat-rate, tiered, usage-based and hybrid subscription commerce pricing models for England, with a scoring rubric, VAT notes and UK compliance costs.
- Why a subscription commerce budget template keeps your numbers honestBuild a subscription commerce budget template that survives scrutiny: choose the right cost lines, date every assumption and reconcile actuals against plan monthly.
- Modelling subscription commerce return on investment in poundsModelling subscription commerce return on investment in pounds, covering contribution margin, retention curves, payback, compliance costs and stress tests.
- Recurring cost categories in subscription commerceExplore recurring subscription commerce costs including payments, platform fees, tax, advertising compliance and retention, with examples of costs that scale.



