Most tech founders register for VAT early, often well before generating meaningful revenue, to reclaim input VAT on development costs, hosting, and equipment. At that stage, the VAT position is straightforward: standard-rated supplies, 20% on every invoice, quarterly return.
The complexity arrives when the business starts to grow. New customer segments, cross-border sales, and different routes to market all change how VAT applies to your revenue, sometimes without anyone noticing until the quarterly return looks wrong.
How does VAT change as my tech business scales?
Your customer base changes, and VAT treatment follows the customer.
A B2B SaaS product sold to a UK business is simple. The same product sold to a business in Germany is treated differently. Sell it to a consumer in Germany, and the rules change again. Add a self-serve purchase flow, a marketplace listing, or a freemium model with paid upgrades, and you may have VAT obligations in multiple countries simultaneously.
It is rarely one big event that causes problems. A new market here, a new customer type there, a new sales channel. Small changes accumulate until the quarterly return looks wrong and nobody can pinpoint exactly when the VAT position shifted.
What is the difference between B2B and B2C for VAT on digital services?
This distinction drives almost every other VAT decision for a tech company selling across borders.
B2B is straightforward. The place of supply is where the customer belongs, so if you sell a SaaS subscription to a business in Germany, the place of supply is Germany. You do not charge UK VAT. The German business accounts for the VAT itself through the reverse charge mechanism, and your invoice should state as much. You also need to hold the customer’s VAT registration number as evidence that this is a genuine B2B transaction.
B2C digital services follow a different rule. The place of supply is where the consumer is located, so selling that same subscription to an individual in Germany means charging German VAT at the applicable rate. Any tech company with a consumer-facing product, a self-serve sign-up, or paid upgrades is potentially making B2C supplies across multiple countries.
Where a customer cannot provide a VAT number or other evidence of business status, the supply should be treated as B2C.
What counts as a digital service for VAT purposes?
Not everything a tech company sells qualifies as a digital service, and the classification determines which place of supply rules apply.
Most tech companies fall into the electronically supplied services category. That covers software downloads, SaaS subscriptions, app purchases, website hosting, cloud storage, access to databases, and online advertising space.
What separates a digital service from a non-digital one is automation. A SaaS product accessed through a browser qualifies. A consultancy engagement delivered by a person over video calls does not, even though it uses the internet. Pre-recorded online courses delivered automatically are in. Live teaching by an instructor is out.
If your business sells both a software product and professional services alongside it, you may need to apply different VAT treatments to each element of the same customer relationship.
Do I need to charge VAT on SaaS subscriptions to EU business customers?
No, provided the customer is genuinely a business and provides a valid VAT number. The reverse charge applies, meaning no UK VAT appears on the invoice. The business customer accounts for VAT in their own country. Your invoice should reference the reverse charge and include the customer’s VAT number.
What about selling digital services to EU consumers?
This is where compliance becomes more demanding.
Since the UK left the EU, UK companies can no longer use the UK VAT MOSS scheme for EU consumer sales. A UK business selling B2C digital services to EU consumers now has two options:
register for VAT individually in each EU member state where it has customers, or register for the EU’s non-Union One Stop Shop scheme.
The non-Union OSS simplifies this. You register in a single EU member state, file one quarterly return covering all your B2C digital service sales across the EU, and make a single payment. You charge VAT at the rate applicable in each consumer’s country, and the member state where you registered distributes it. For most UK tech companies, this is the practical route rather than registering separately in every country where you have customers.
There is no registration threshold for non-EU businesses selling digital services to EU consumers. The obligation applies from the first sale. In practice, many early-stage businesses do not address this until EU consumer revenue reaches a level where non-compliance risk becomes material, but the legal obligation exists from day one.
Does overseas revenue count towards the UK VAT registration threshold?
It depends on where the place of supply falls. B2B services to overseas business customers are generally outside the scope of UK VAT, so they do not count. Neither do B2C digital services to overseas consumers, though those may trigger obligations in the customer’s country instead. Only supplies where the place of supply is the UK count towards the GBP 90,000 threshold.
What about sales outside the EU?
Sales of digital services to consumers outside the EU and outside the UK are generally outside the scope of UK VAT. Some countries have their own digital services tax or VAT regimes that may require registration, but these vary widely.
For B2B sales outside the UK, the reverse charge principle applies broadly. No UK VAT is due, and the business customer accounts for any local tax in their own jurisdiction.
Where it gets complicated is tracking which sales attract which treatment. A product with global distribution and a self-serve purchase flow can generate sales across dozens of countries, each with its own rules.
Does selling through a platform change my VAT position?
It can. If you sell digital services through a third-party platform or marketplace, the platform may be responsible for collecting and remitting VAT, not you. This applies where the platform is deemed to be the supplier for VAT purposes.
When a platform counts as the supplier varies between jurisdictions. In the UK, an online marketplace is treated as the supplier for certain categories of sales, and similar rules apply across the EU. If your product is sold through a platform, it is worth confirming where the VAT responsibility sits. Get it wrong and it affects both your invoicing and your return.
Is the Flat Rate Scheme worth it for a tech company?
It can be, up to a point. The Flat Rate Scheme replaces the standard input-minus-output calculation with a fixed percentage of gross turnover. For SaaS companies past the initial development phase, where costs are low relative to revenue, the scheme often results in a lower VAT payment.
It works less well as the business grows. You cannot reclaim input VAT on individual purchases, with limited exceptions for capital assets over GBP 2,000. If the business is making significant capital investments or incurring large professional fees, the standard scheme may produce a better result.
There is also a ceiling. The scheme is only available to businesses with expected VAT-taxable turnover of GBP 150,000 or less in the next 12 months, and for a growing tech business, that limit can arrive quickly after a funding round translates into revenue growth. Whether the scheme still makes sense should be a regular conversation with your accountant, particularly when revenue is scaling or cost patterns are changing.
What records do I need for cross-border digital sales?
All VAT-registered businesses must keep digital records and file through MTD-compatible software. For most tech companies already on cloud accounting platforms, this is straightforward.
Cross-border B2C sales raise the bar. If you are selling digital services to EU consumers through the non-Union OSS, you need evidence of where each consumer is located: billing address, SIM card country code, IP address location, and bank details. Two non-contradictory pieces of evidence per transaction, minimum.
If you are processing high-volume, low-value B2C transactions across multiple countries, automate this evidence collection at the point of sale. Retrofitting it later is significantly harder and more expensive.
When should I review my VAT position?
Several growth milestones should trigger a VAT review:
- You start selling to individual consumers as well as businesses
- You expand into EU or international markets
- You introduce a self-serve purchase flow
- You begin selling through a marketplace or platform
- You exceed the Flat Rate Scheme turnover limit
- A funding round changes your cost base significantly
- You start selling a mix of digital and non-digital services
Any one of these can alter what you need to charge, where you need to report, and what records you need to keep. Getting it right proactively is always cheaper than correcting it afterwards.
Talk to a specialist
VAT for tech businesses involves more moving parts than most founders expect, particularly once you are selling across borders or to both businesses and consumers. Wilson Partners works with growing tech companies on VAT compliance and planning. If your business is expanding into new markets or changing how it sells, get in touch with our technology team to make sure your VAT position keeps pace with your growth.
