Anrok automates sales tax compliance for SaaS businesses by providing real-time sales tax calculations integrated with billing systems like Recurly. It plugs into a SaaS company’s billing stack and continuously calculates the correct tax per transaction across multiple jurisdictions to ensure invoices remain accurate and compliant. Its specialization in SaaS billing workflows and a ready-made subscription pricing model helps distinguish it from general tax tools, supported by strong funding and rapid growth. The goal is to save time, reduce non-compliance risk, and enable faster growth by letting teams focus on product and customers.
Company Size
51-200
Company Stage
Series C
Total Funding
$109.3M
Headquarters
San Francisco, California
Founded
2020
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New: Anrok integration - Sales tax that keeps up with your billing. Alguna now connects directly to Anrok, the sales tax and VAT compliance platform built for software companies. Billing for multiple entities in Alguna is simple. Most of its customers sell globally, and they can set up a UK entity, a US entity, and an EU entity, in minutes. Each one invoices in its own currency, under its own legal name, with its own numbering. Then sales tax enters the picture. Every entity has its own registrations, its own nexus exposure, and its own filing obligations, and the moment one of them sells into a new state or country the question stops being "do we charge tax?" and becomes "which entity owes what, and how long has it been wrong?" With its native Anrok integration, tax scales with your entity structure. Turn it on once, and every invoice, credit note, and self-serve checkout flow across your entities gets rates from your own Anrok registrations, without spreadsheets, manual tax codes, or mapping projects. Visit its Anrok documentation to learn more about the setup, how products map to Anrok, and included features. Note: You can only set this up if you have an existing Anrok seller account and Anrok is your system of record for registrations and returns. What the Anrok integration does. Four things happen once your Anrok integration is live: * Tax is calculated by Anrok, at the moment of billing. Every draft invoice, self-serve checkout flow, and credit note gets a live rate from Anrok based on the customer's address, their tax IDs, and what you're actually selling them. Drafts are re-rated whenever something that affects tax changes. Once an invoice is issued, its tax is assessed against the customer details as they stood at issuance, so a later address change doesn't move an already-issued invoice. * Every product carries a tax category. Alguna ships a curated tax-code taxonomy. This includes 31 categories spanning SaaS, PaaS and IaaS, hosting and domains, downloaded and on-premise software, professional services, digital goods and digital advertising, almost all of them split into business and consumer variants. Pick a code on the product, and Alguna creates the matching product in Anrok with the right tax category. If you've since tuned that category in Anrok yourself, Alguna flags the difference rather than overwriting your change. * Issued invoices record themselves. The moment an invoice is issued, Alguna writes the transaction to Anrok, ready for filing. If the invoice changes, the record is updated; if it's voided, the record is voided too. When you apply a credit note, Alguna records the negation, in full or in part, against the original. Your Anrok transactions match your Alguna invoices without a spreadsheet in between. * A ledger you can actually reconcile. A new Tax section in Alguna shows every calculation and every recorded transaction, with the tax printed on the document next to the tax Anrok recorded, and any difference flagged so you can filter straight to it. What it means for your finance teams. Close the books faster. No exporting invoices, no reformatting, no re-keying into a tax tool before filing. What was invoiced is already what's filed. Stop under- and over-collecting. Reverse charge, VAT exemptions, and jurisdiction-specific rules are decided by Anrok's engine, per line, using validated buyer tax IDs. Be audit-ready by default. Every calculation stores the full jurisdiction breakdown and the exact exchange with the tax engine. When an auditor asks why an invoice from fourteen months ago carried 8.25% instead of 8.875%, the answer is a click away, not a forensic exercise. No silent failures. If Anrok can't be reached, Alguna does not fall back to a flat rate and issue an invoice with the wrong tax on it. It stops and tells you. Wrong tax on an issued invoice is far more expensive than a delayed invoice. Historic invoices stay historic. The customer's address and tax IDs are frozen onto the invoice at issuance. A customer relocating their HQ next quarter never re-prices an invoice you closed last quarter. How to get started: Set up your Anrok integration. Setting up your Anrok integration in Alguna is easy. Then simply watch the tax come through and check it against what you collected. * Create an API key in Anrok Log into your Anrok account create an API key for the seller account you want Alguna to use. Alguna creates products in your account and records transactions against them, so the key needs access to products and transactions. Note: If you run more than one Anrok seller account, make sure to give each connection a seller name so you can tell them apart. * Enable Anrok as your tax provider Go to Settings | Workflows | Billing | Tax and choose the legal entity and set its tax provider to your Anrok connection. The engine is chosen per legal entity, so other entities can keep using Alguna Tax or Stripe Tax. * Choose calculation only, or calculation and reporting Leave the engine mode on its default. This way Alguna records finalized invoices and credit notes in Anrok for filing. If you file from another source and only want Anrok's rates on your documents, go ahead and switch to Calculation only. * Confirm your registrations in Anrok Anrok only collects tax where your seller account has a registration. A calculation for a jurisdiction you are not registered in will return zero tax. Make sure to add registrations in Anrok, not in Alguna. * Watch the tax come through Issue an invoice, then open Tax in the sidebar. Calculations shows every tax calculation Alguna has run. Transactions shows what was actually sent to Anrok: One row per invoice, with the tax Anrok recorded next to the tax on the invoice itself. * Check it against what you collected Payments, refunds and disputes all live in one place, synced automatically. Tax sits on the invoice, not the payment, so refunds and disputes don't change what Anrok files. To adjust a recorded invoice, issue a credit note in Alguna and it flows straight to Anrok, no manual work. Not an Alguna customer? Book your personalized demo to start billing globally without manual workarounds. Further reading. - Tax Management Overview: How tax is calculated across Alguna, and how to choose an engine. About Anrok Anrok is the AI-native tax infrastructure for global commerce. One platform runs all five tax compliance jobs, including reconciliation, which no other tax engine has built in. More than 5,500 users run compliance on Anrok across 150+ countries, reaching it in the product with Anrok Atlas, through the Anrok APIs, or with their agents. I'm Jo. I've seen first-hand how bad billing can break the books and stifle growth. That's why I spend my days obsessing over quote-to-cash, because pricing and billing should never be an afterthought. Got collab ideas? [email protected].
Anrok raises a $30M Series B led by Khosla Ventures, to be the tax compliance infrastructure behind the digital economy.
Anrok, a tax compliance platform used by 44% of the Forbes AI 50, has launched native global compliance capabilities and new integrations with Zuora and WooCommerce. The platform enables finance teams to automate sales tax, VAT and GST compliance worldwide without managing multiple regional vendors. The expansion addresses a growing challenge: Anrok's data shows companies experience a 47-fold increase in filing requirements as they scale. The platform now offers comprehensive coverage across all jurisdictions taxing software and digital goods, including exposure monitoring, registration, calculation, filing and remittance. The Zuora integration supports subscription and usage-based business models, whilst the WooCommerce partnership brings Anrok's solutions to nearly 500,000 US merchants. Anrok now services $30 billion in customer revenue worldwide, with clients including Anthropic, Cursor and Notion. Companies using the platform reclaim 90% of time typically spent on indirect tax.
Anrok just raised $55 million in Series C funding led by Spark Capital, bringing our total funding to over $100 million.
Anrok raises $55M in funding to automate global sales tax compliance for AI and SaaS startups. Global tax compliance has quietly become one of the biggest bottlenecks for fast-growing digital companies. As businesses scale across borders, managing sales tax filings in dozens of jurisdictions can turn into a full-time burden. Anrok, a San Francisco-based startup, wants to fix that - and investors are doubling down on its approach. Today, Anrok announced it has raised $55 million in a Series C funding round led by Spark Capital, with participation from Sapphire Ventures, Khosla Ventures, Sequoia Capital, and Index Ventures. The new funding pushes Anrok's total raised to over $100 million and will fuel its next phase of growth, from expanding AI-driven automation to building new partnerships that help modern finance teams stay compliant without slowing down innovation. Anrok already counts more than 3,000 finance leaders as customers, including some of the fastest-growing names in tech like Anthropic, Cursor, and Notion. These companies rely on Anrok's software to automate global tax compliance across every country and jurisdiction they operate in - cutting down the time teams spend on tax filings by as much as 90%. The platform has become indispensable for the digital economy, covering SaaS providers, e-commerce marketplaces, hardware makers, and especially AI startups. Over 40% of the companies on the Forbes AI 50 list now use Anrok to manage their tax obligations, a sign of how deeply the product has embedded itself into the infrastructure of high-growth companies. The scale of the problem Anrok is tackling is enormous. Global tax rules are multiplying quickly - over 100 countries now impose VAT or GST on digital goods, and U.S. state regulations continue to fragment. Based on Anrok's data from more than 32 million monthly transactions, filing requirements explode as revenue grows. A company with $1 million in annual revenue might face just two filings a year; at $50 million, that number can jump to more than 94. The share of revenue subject to taxation doubles from 20% to over 50%. Manual processes can't keep up, which is where Anrok steps in with its AI-native automation engine. The company was founded by technology veterans who teamed up with global tax and accounting experts to build software that merges machine intelligence with human oversight. Anrok's system uses AI to process documents, extract data, and manage filings efficiently - but with tax specialists reviewing results to ensure everything stands up under audit. "Knowing our tax compliance automatically scales with our billing allows us to focus on product development without diverting engineering resources to tax complexity," said Connor Solimano, Business Operations and Strategy at Cursor. That mix of automation and expert validation has made Anrok stand out in a space that's been slow to modernize. As Yasmin Razavi, General Partner at Spark Capital, put it, "Global sales tax compliance has been broken for too long - it's one of those problems that gets exponentially harder as companies scale. Anrok has built the first solution that actually scales with modern businesses." With its new funding, Anrok plans to expand its R&D efforts and deepen its integrations with global finance systems. CEO and co-founder Michelle Valentine said the company is building "the tax infrastructure that can keep up with the pace and scale" of the world's fastest-growing companies. "Anrok powers compliance for some of the fastest-growing AI companies worldwide," Michelle Valentine, CEO and co-founder at Anrok, said. "We're building the tax infrastructure that can keep up with the pace and scale of their demand, and allow customers to focus on growing their business across borders." From its base in San Francisco, Anrok is positioning itself as the go-to platform for tax automation in the digital economy - turning a once-painful administrative chore into a scalable part of the business stack.