Point CARF tools file a report and stop. Here's the case for CARF/DAC8, withholding, and a retail tax centre on one data layer, at a fraction of the cost.

Every crypto venue in scope for CARF and DAC8 is about to buy software for it. The default move is to buy a reporting tool: something that ingests transactions and spits out a filing. That works. Before you sign, though, ask what else the same data could do, because the reporting file is just one of several obligations that run on identical inputs.
A point solution files your CARF and DAC8 reports, then stops. But that reconciled, per-user, per-jurisdiction dataset you built to file? It's the same dataset behind withholding tax at source, a retail tax centre, portfolio and treasury tracking, and an audit response. Buy a separate tool for each and you'll integrate the same data four times over, and pay four vendors to do it.
Reporting and withholding are the clearest case. An Austrian domestic provider has to withhold 27.5% KESt and file CARF, and both feed off the same classified transaction stream. Our tax withholding solution and our CARF and DAC8 reporting share one ingest, so a single integration covers both, no second stack to stand up. Pull a white-label tax centre for your retail users off the same data, and the compliance spend starts paying for itself on the product side.
This is an architecture argument, but it's a cost one too. Buy reporting, withholding, retail tax, and audit tooling from separate vendors and you're signing several contracts and wiring the same data several times. One platform end to end means fewer vendors and a single integration to maintain. You can talk to our team.
If a filing is genuinely all you'll ever need, a reporting-only tool is fine. If you also have to withhold, serve retail users, or field an audit, look harder at the platform. Here's a quick test: ask each vendor what happens to the data once the report is filed. If the answer is "nothing," you're paying to rebuild the same pipeline for the next obligation. For how this fits a venue, see exchanges and custodians, and the EU's tax cooperation pages for the DAC8 baseline everyone's building against.
At a minimum: ingest transactions across chains and venues, run CARF due diligence, produce valid CARF XML plus any national formats, and validate before filing. The bigger question is whether that same data also drives withholding, a retail tax centre, and audit, or whether you buy those piecemeal.
It is, if filing is your only obligation. Once you also have to withhold at source, give retail users a tax centre, or support an audit, a single platform on one data layer usually costs less and integrates once, rather than buying and wiring several point solutions.
It varies a lot. Multi-vendor, reporting-only setups add up once you're also buying withholding, retail tax, and audit tooling from separate providers. A single platform on one data layer usually means fewer vendors and one integration to maintain. Talk to our team about what it looks like for your setup.

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