Label and Sovos combine CARF crypto reporting with US tax filing ahead of the 2027 deadline

CARF's first filing year and the year it reports on are different years. Platforms file from 2027, but the files describe activity in the 2026 tax year ^[2]. A 2027 report needs customer due-diligence records and tax self-certifications ^[5]. It also needs fiat values converted under the applicable FX rules ^[6], and both have to exist for trades that are happening now ^[18].

Label already sells FATCA, CRS and CARF due diligence and reporting software to banks, fintechs and fund managers ^[16]. Sovos brings the US side, including its 1099-DA service ^[9]. "By partnering with Label, we extend our digital asset reporting capabilities to include CARF within a broader, integrated compliance framework," said Wendy Walker, Sovos vice president of regulatory affairs ^[11]. Scott Nice, Label's chief revenue officer, pitched it to the buyer. "Our partnership with Sovos delivers a scalable solution that removes the burden of building CARF compliance capabilities in-house," he said ^[10].

The vendors argue that CARF, FATCA and CRS ask for overlapping customer data. Collecting it once, they say, cuts duplicated work and keeps records consistent across regimes ^[15]. That argument is strongest for banks and fintechs offering digital asset services, both on the target list ^[14], because CARF lands on top of the FATCA and CRS reporting these firms already manage ^[8]. A large exchange with its own reporting team may instead extend its in-house systems and leave the smaller platforms to vendors. A third outcome is that jurisdiction-specific requirements ^[5] split the single environment into country variants, and each variant cuts into the saving from collecting data once.

I think the vendors are right about mid-sized platforms and banks. The data they need is building up during 2026 ^[18], and an in-house build would start on a schedule that is already running. The view is wrong if the largest exchanges announce their own builds and integrated vendors end up with only the long tail. So far, the evidence for a wider vendor trend is this one partnership.

The zero-rejection claim ^[20] is the figure a buyer would test first. CARF files go to tax authorities in the OECD's XML format, and structural or data errors can get a submission rejected ^[7]. CARF requirements start in 2027 and the partnership was announced ahead of that ^[2], so the record comes from before the first live CARF reporting cycle ^[19]. The companies did not say how many files it covers, which authorities received them, or what the package costs ^[17].