Luca IQ, a Boston-based startup backed by Y Combinator, secured authorization from the Internal Revenue Service to calculate and electronically file federal tax returns through a unified API. The July 31 launch marked the company's emergence from stealth with credentials as a Software Developer, Transmitter, and Intermediate Service Provider—a trifecta that lets it route submissions directly into the IRS's Modernized e-File system without handing off to middlemen.
That matters more than it might sound. Professional tax preparation has long required firms to stitch together separate vendors for document intake, calculation engines, and filing transmission, creating what practitioners describe as a Rube Goldberg contraption held together by manual workarounds. Luca IQ's pitch is that it collapses that entire stack into one deterministic API, binding document parsing, tax computation, and IRS submission under a single contract.
The Mechanics
The platform ingests W-2s, 1099 forms, K-1 partnership statements, and brokerage documents, then maps their values to specific Form 1040 lines while preserving audit trails back to source materials.
"A deterministic engine handles the math, so the calculation is auditable and identical every time," said Akash Sadashivapeth, the company's chief technology officer, in a press release. That deliberate emphasis on determinism signals a quiet jab at competitors experimenting with probabilistic AI models for tax work. Luca IQ does not use such models for calculations, the company confirmed.
The API spits out results in JSON for developers, formatted PDFs for clients, or IRS MeF XML for transmission. Pre-file diagnostics run submissions against IRS schemas and business rules before anything leaves the building, catching errors that might otherwise trigger rejections days later. The workflow also includes a client portal, auto-drafted workpapers, a review interface with audit trails, e-signature collection for Form 8879, and direct MeF transmission, according to developer documentation on the company's site.
The Builders
CEO Angelo Policicchio is a certified public accountant who spent time at EY, the FBI's forensic accounting unit, and Credit Suisse before Harvard Business School. Sadashivapeth led data science at Welligence Energy Analytics and holds degrees from the University of Pennsylvania and Harvard Business School, according to Y Combinator's company directory.
The team is small—reportedly five people when it went through Y Combinator's accelerator program. Policicchio claimed on LinkedIn that the company's workflow platform helped some firms save more than 1,100 hours during a single busy season, though Luca IQ declined to disclose pricing or the number of firms currently using the product. That opacity is standard for early-stage enterprise software plays, where customer lists and unit economics remain closely guarded until there's enough traction to matter.
What Already Exists
Much of the professional tax preparation market still runs on legacy platforms. UltraTax, Drake, Lacerte, CCH Axcess, ProSeries, and ATX have historically dominated CPA firms, according to industry surveys. Those platforms typically require separate integrations for document extraction, often cobbled together through robotic process automation or third-party tools like TaxDome, Juno, or Black Ore.
Embedded tax APIs exist, but they target a different market. April aims at banks and fintech platforms, while Column Tax provides SDK-based filing inside partner apps. Both hold IRS authorization, yet both focus on do-it-yourself consumer returns rather than the multi-layered workflows professionals demand.
"The problem was never that the incumbents are bad at tax math," Policicchio said in the press release. "It is that nothing connects."
That disconnect creates friction at every handoff. Documents arrive as PDFs or scanned images. Extracting their data requires optical character recognition, which introduces errors. Those values then move into calculation engines, which may or may not integrate cleanly with the firm's client relationship management system. When it's time to file, transmission goes through yet another vendor. Each seam is a place where something can break, and tax season doesn't leave much time for troubleshooting.
Limitations at Launch
Luca IQ's authorization covers federal Form 1040 only. The company did not announce support for partnership returns (Form 1065), corporate returns (Forms 1120 or 1120-S), or state e-filing at launch, according to coverage in Accounting Today. Preston Cardwell's industry newsletter flagged the 1040-only scope in an August item, noting that firms handling business entities would still need separate systems for those filings.
The company said a SOC 2 Type II audit is underway but did not disclose a completion date. Customer data is encrypted in transit and at rest, and Luca IQ does not train models on client documents, according to its developer page. Those assurances address the thorniest question in professional services software: whether sensitive financial information might leak into training sets or wind up fueling someone else's product roadmap.
Whether CPA firms will adopt a new platform during tax season—when risk aversion peaks and switching costs feel existential—remains an open question. The incumbents have inertia, legacy integrations, and decades of muscle memory on their side. Luca IQ has a cleaner architecture and the promise of fewer moving parts. Time, and perhaps a few pilot customers willing to bet on speed over familiarity, will determine which advantage matters more.
