Stripe was charging the catalogue's NET figure while the document added the
domestic rate on top: a customer quoted 214,80 paid 179,00 and was then invoiced
for VAT nobody had collected. Under para 11(12) UStG that VAT is owed to the tax
office whether or not it ever arrived, so every document issued created a
liability against revenue that did not contain it.
The Stripe Price now carries the GROSS figure. price_cents stays net - it is
frozen onto every contract and PlanChange prorates against it, so redefining it
would corrupt every pro-rata sum ever computed. Only the amount at the till
moved, and it is formed by the one call TaxTreatment already answers for the
price sheet and for the invoice, so displayed, charged and invoiced cannot drift
apart.
Stripe's automatic_tax is deliberately not used. TaxTreatment is the single tax
authority here, and a second rate computed by Stripe would take 19 % from a
German consumer while our document said 20 %.
A Stripe Price cannot be edited, so a changed figure means a new Price and the
old one archived - which stops it being SOLD and leaves every subscription
already on it billing the old amount for ever. stripe:reprice-subscriptions is
the second half, and a command of its own because it touches live money.
A withdrawing consumer is refunded in full, as the owner decided. That is more
generous than FAGG para 16 requires, and it makes the express-request consent the
statute hinges on irrelevant - so the gate is gone rather than left looking
load-bearing.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Three things the product owed its customers and did not have.
**Who is on the other side.** There was no consumer/business flag anywhere,
and `vat_id` was standing in for one — which it cannot: a business without a
VAT number is an ordinary small business, and a consumer with one does not
exist. It is asked at sign-up now, correctable in the portal, and NULL where
nobody has been asked. Unknown is read as CONSUMER everywhere it decides a
right, because that mistake costs us a refund while the other one takes a
statutory right away from somebody who has it.
Reverse charge asks the recorded type instead of the number: an explicit
consumer is charged the domestic rate whatever `vat_id` says — previously they
were not, and anyone could zero their own VAT by getting a number verified. An
unrecorded type still falls back to the verified number, so no contract that is
already running changes rate.
**The fourteen-day right of withdrawal** (FAGG, §312g BGB), for consumers only,
at every door: the window is stamped on the contract when it is concluded, the
customer exercises it from the portal, an operator records one that arrived by
telephone or post, and both go through one action that refuses a business
customer on the server rather than by hiding a card.
The money follows the paperwork rather than being computed beside it. The
invoice is cancelled by a Storno with its own gapless number — nothing is ever
edited or deleted — a new invoice states the pro-rata value of the service
actually delivered (FAGG §16, by days over the term paid for), and the refund
is exactly the difference between the two documents. Where the consumer never
expressly asked for the service to begin at once, they owe nothing and the whole
amount goes back. `StripeClient::refund()` is new, keyed so a retry cannot send
the money twice. The service ends through EndInstanceService and the
`cancellation_scheduled` machinery that was already there.
**The cancel button for modules.** BookAddon::cancelAtPeriodEnd() had no caller
in the interface at all, so a customer could book a recurring charge in two
clicks and had no way to stop it. It is on the module card now, with the date it
runs until and a way back while the cancellation is still pending — and putting
a module back settles nothing, because the term it was cancelled for was paid
for in advance.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
The Finance tab wrote a rate into settings while TaxTreatment kept reading one
from config — two sources for one number, added by me two commits ago. It had
not bitten yet only because both happened to say 20.
TaxTreatment now takes the domestic rate from CompanyProfile, which falls back
to the .env-derived config until an operator saves one. Same shape as
ProvisioningSettings, which already solves this for the deployment values, and
the same reason: an operator can change a settings page and cannot change a
config value, so a page that appears to set the rate and does not is worse than
no page at all.
Reverse charge and the seller country stay where they are. That logic already
existed, already handles a verified EU VAT ID correctly, and nothing here
needed to know about it — which is exactly why it should not have been
duplicated.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
A timestamp alone said "some number was checked once": editing the field left
it intact, so a customer could swap a verified foreign VAT ID for any
plausible-looking one and keep zero-VAT pricing. The verified value is stored
and compared, which makes the rule self-enforcing — no writer has to remember
to clear a flag, and there are several writers.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Any non-empty string starting with two characters other than AT switched the
customer to reverse charge — typing "XX123" was a 20 % discount. Reverse charge
now requires a VAT ID that is verified, belongs to an EU member state other than
ours, and looks like a VAT number at all. Unverified is the normal state and
means the domestic rate: over-collecting is correctable, under-collecting is a
tax liability.
Changing the number clears its verification. Verification itself (VIES) is not
built yet, so reverse charge stays off until someone confirms a number — which
is the safe direction to be wrong in.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Codex was right that this could misstate real charges: an EU business with a
VAT ID registered in another country is billed under reverse charge, and we
were adding 20 % Austrian VAT to their total anyway. TaxTreatment resolves it
from the customer's VAT ID, and the whole page — cart, plan cards, add-on
cards — now states one treatment instead of contradicting itself.
Explicitly NOT handled: cross-border sales to private individuals, which are
taxed at the buyer's national rate under OSS. That needs a maintained rate
table and a tax adviser, not a guess, so those fall back to the domestic rate —
over-collecting rather than under-collecting.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
nexxo