Vatlio: The OSS/IOSS VAT Summary Your Accountant Files in Five Minutes

If you sell across EU borders online, the One-Stop-Shop (OSS) and Import One-Stop-Shop (IOSS) VAT regime is the quarterly chore that eats an afternoon and rewards a single mistake with a correction filing. You export sales from Shopify, then Etsy, then eBay, then your WooCommerce store; you try to remember which country's VAT rate applied; you convert last quarter's dollar and pound sales to euros at — which exchange rate, exactly? — and you hand your accountant a spreadsheet you're not fully sure about. When Taxdoo exited VAT compliance in April 2026, a whole tier of small sellers lost the tool that did this for them, and the affordable replacements weren't there. Vatlio is built for exactly that gap.

Vatlio merges your multi-channel sales into the clean, country-by-country OSS and IOSS VAT summary your accountant enters into the portal in about five minutes. Its hero line is also its scope: the OSS report your accountant files in five minutes.

Honesty First: A Summary, Not a Filing

The most important thing about Vatlio is a line it will not cross. It does not submit returns to any tax authority and it does not give tax advice — both of those are regulated activities, and any tool that blurs the line is doing you a quiet disservice. What Vatlio produces is the correct, defensible summary: the numbers, per country, in the right buckets, that a human professional then files. That boundary is deliberate, and it's what keeps the product simple, safe, and cheap.

One Importer for Every Channel

Vatlio takes sales from Shopify, Etsy, eBay, WooCommerce and plain CSV and normalizes them into one canonical shape. The importer is tolerant of the header chaos every platform export brings — it recognizes column aliases, reports bad rows instead of silently dropping them, and is idempotent, so re-importing the same file doesn't double-count a single sale. You bring the exports; Vatlio makes them one dataset.

It Knows Which Sale Is Which

The real work in OSS/IOSS is classification, and Vatlio automates it. Every transaction is routed — domestic, Union OSS, IOSS, or out of scope — using the rules that actually govern it: the customer's country, whether a valid B2B VAT number was supplied, whether it's a consignment of goods at or under the €150 IOSS ceiling, and where the seller is established. From there it builds the official Annex III return structure, including the parts for corrections to previous periods, with totals grouped exactly as the regime requires.

The Numbers Are Right: ECB Rates and Live VAT Validation

Two details separate a trustworthy summary from a guess. Vatlio converts every non-euro sale at the official European Central Bank period-end rate — the rate the tax authorities expect — rather than whatever the platform happened to record. And it validates the VAT rate applied to each sale against the EU's official rates database, so a wrong rate is caught before it reaches a return. When you're near the €10,000 distance-selling threshold that flips you into the OSS regime, a dashboard progress bar and daily email alerts tell you before you cross it, not after.

Filing-Ready Exports, Including Germany's BOP

A summary is only useful in the format the portal accepts. Vatlio exports a clean accountant-friendly CSV, and — because Germany's sellers file through the BZSt "Mein BOP" portal — it produces the exact BOP import format that portal expects, not a generic file someone has to reshape by hand. The whole pipeline, from store import through classification to the BOP and accountant exports, is verified end-to-end.

Where It's Going

Vatlio rides a clear catalyst — the Taxdoo exit and the empty price band beneath the remaining compliance tools — and it's built API-first and multi-tenant so an accountant handling many sellers is a first-class user, not an afterthought. The near-term roadmap connects the live Shopify, Etsy and eBay APIs so multi-channel sync happens without manual CSV exports, adds billing, and hardens the official-service integrations. The promise stays fixed: turn a quarter's worth of cross-border sales into a summary your accountant trusts and files in five minutes.