The EU-native data layer that finds your reportable users, validates their TINs, computes gains, and files the report your authority expects. You file once, and the OECD network shares it with every jurisdiction your users live in.
SOC 1 & 2 Type II. NZ Inland Revenue-validated schema. CARF XML v1.5.
The whole obligation runs on one data layer. Your users get a white-label Tax Centre from the same data, in parallel.
Pull transactions from every exchange, wallet and chain through the API or a file upload, deduplicated into one clean feed. 150+ chains, 100+ venues.
Self-certification capture, three-tier TIN validation, and the 60-day kill-switch: two reminders, then reportable transactions are blocked until the user certifies, and cleared the moment they do.
Cost basis and fair value per asset, with the retail-payment threshold applied. The moving-average or FIFO method your jurisdiction requires, in the right currency.
Valid CARF XML v1.5, plus the national envelopes a standard build can't produce, like Sweden's KU94. The format each authority actually accepts.
Three-tier XSD validation before anything leaves the building, so a filing never bounces. 450+ test cases and an NZ Inland Revenue-validated schema behind it.
File once with your home authority. The OECD Common Transmission System hands it to every jurisdiction your users are resident in. Kryptos is your processor, you stay the controller.
We'll map your obligations with you and show the pipeline on your own data.
Centralised venues with users across dozens of jurisdictions. Identify who's reportable, validate TINs, and file each authority's format from one platform.
Custodial wallet providers in scope as reporting CASPs. The full due-diligence workflow and audit trail, without a build.
Broker-dealers handling crypto for clients. CARF and DAC8 alongside domestic layers like the US 1099-DA, on one data layer.
Firms guiding CASPs to readiness. See the whole obligation and hand clients a filing-ready pipeline.
Collection has been live since January 2026. First filings land in 2027: the UK by 31 May, New Zealand by 30 June, and the EU under DAC8 by 30 September. Kryptos tracks each deadline for you.
Often yes. DAC8 reaches any CASP with EU-resident users, and you register in a single member state to report for all of them. We resolve where each user is reportable, so nobody is filed twice or missed.
If a user never provides a valid self-certification, you must send at least two reminders over 60 days, then block their reportable transactions. Kryptos runs the whole cadence and unblocks them the instant they certify.
CARF XML v1.5 for the OECD network, plus national envelopes such as Sweden's KU94. Every file passes a three-tier XSD gate before submission, so filings don't bounce.
A build is a team, 450+ edge cases, every national format and a decade of audit logs, on you forever. Kryptos is live in weeks from $15,000 a year, all in, with the retail Tax Centre included.
Book a walkthrough and we'll map your obligations and show the pipeline on your own data.