Don't guess your EU VAT.
Know it.
You've been selling into Europe — or invoicing trades jobs in Ireland. At some point the VAT rules applied to you. Upload your export and find out exactly where you stand in 60 seconds.
Sample output
Acme Digital Ltd
Q1 2026 · 847 transactions · 4 markets
2 anomalies flagged
IT — 4 transactions missing VAT ID. Reverse-charge rule may not apply. Recommend review before filing.
NL — 2 rows with country code "NED" instead of "NL". Remapped automatically; verify source export.
OSS threshold status
Same VAT problem. Different business. Pick yours.
VATHack is two products under one roof — built specifically for how each business actually gets exposed to VAT risk.
You crossed the OSS threshold before you knew it existed.
Your accountant files the return. But if the data going in is wrong — wrong country codes, wrong rates, missing VAT IDs — you're the one who settles the fine. Not them. VATHack analyses your Shopify, Stripe, or WooCommerce exports in under 60 seconds. OSS threshold status, country-by-country VAT exposure, anomaly flags, filing deadlines. You know exactly where you stand before anyone asks.
- OSS threshold monitoring across 27 EU markets
- Anomaly detection on your Shopify, Stripe or WooCommerce exports
- Country-by-country VAT exposure in under 60 seconds
RCT, the two-thirds rule, VAT reclaim. Do you actually know your position right now?
Labour-dominant contract? That's 13.5%, not 23%. Getting that wrong means either overcharging your client or eating the difference yourself. And that's before RCT rates, subcontractor invoicing, and what you can and can't reclaim on purchases. Upload your sales and purchase CSVs. VATHack checks your rates, flags reclaim eligibility by category, and validates your RCT figures — in seconds. No accountant call required.
- Two-thirds rule validation — 13.5% vs 23% on labour-dominant contracts
- RCT rate checking at 0%, 20%, and 35%
- Category-level VAT reclaim eligibility on purchases
< 60s
Analysis time
27
EU countries covered
2026
VAT rates current
€0
Free to start
The rules applied before you knew they did.
Liability starts when you crossed the threshold — not when you found out. Miss a quarter and the interest runs from the day you should have filed.
Hungary is 27%. Sweden 25%. One wrong rate across a quarter of sales means paying the difference out of your margin — retroactively.
Your accountant files what you give them. Wrong country codes, missing VAT IDs, duplicate rows — VATHack finds them before the file leaves your hands.
What we actually check in your data
Most VAT errors aren't strategic mistakes. They're bad rows in a CSV. Here's what we look for.
Instant CSV Analysis
Export your sales data from Stripe, Shopify, or wherever you sell. Drop it in. In under 60 seconds you get a full country-by-country VAT breakdown — no setup, no mapping, no accountant needed.
VAT Breakdown
Data Quality Score
Before you act on the results, you need to know if the data behind them is any good. The quality score tells you exactly that — and flags what's missing before it becomes your accountant's problem.
Excellent Compliance
Anomaly Detection
The errors that trigger audits aren't usually big strategic mistakes. They're a missing VAT number on row 67. A country code that says NED instead of NL. We find them. You fix them. Before anyone else sees the file.
OSS threshold exceeded in FR
+€12,400 over limit
Missing VAT ID in 3 rows
rows 14, 67, 89
PL registration recommended
approaching threshold
Rate Simulator
Thinking about expanding to Germany or the Netherlands? Run the numbers before you commit. See exactly what VAT you'd owe — and whether it changes how you price.
Scenario: Expand to NL + BE
OSS Filing Calendar
OSS returns are due quarterly. Missing one isn't a reminder — it's a penalty. The calendar tracks every deadline across all 27 markets so you don't have to.
Q2 2026 OSS Return
20 Jul 2026
Q3 2026 OSS Return
20 Oct 2026
Q4 2026 OSS Return
20 Jan 2027
Before you expand — run the numbers.
What happens to your VAT bill if you double German sales? Shift more revenue to B2B? Raise prices 15%? Find out before you make the move.
QUICK SCENARIOS
Base VAT
€10,122
New VAT
€9,312
VAT Delta
€-810
Sales Delta
+€6,036
| Country | Base Sales | New Sales | Base VAT | New VAT | Delta |
|---|---|---|---|---|---|
| DEGermany | €18,400 | €20,608 | €3,496 | €3,216 | €-280 |
| FRFrance | €12,200 | €13,664 | €2,440 | €2,245 | €-195 |
| NLNetherlands | €8,700 | €9,744 | €1,827 | €1,681 | €-146 |
| ESSpain | €6,100 | €6,832 | €1,281 | €1,179 | €-102 |
| ITItaly | €4,900 | €5,488 | €1,078 | €992 | €-86 |
Ready to run this on your actual numbers? Upload your CSV and see your real exposure — free.
Free to start · results in under 60 seconds · no credit card required
Before vs. after fixing VAT errors
Without VATHack
With VATHack
Errors found after filing
Errors found before filing
Your accountant works with whatever you gave them
Your accountant gets clean, anomaly-flagged data
You find out what went wrong after the penalty lands
You find out what's wrong in 60 seconds, for free
What we calculate, what we store, and what we don't do.
Rates verified 9 May 2026
Sourced from EU Council Directives. Updated within 24 hours of any official change.
Your CSV is never stored
Processed server-side and discarded immediately. We never retain your data.
Subscription refund if a rate causes a misfiling
If a rate we publish results in a misfiling, we refund your subscription and provide corrected filing guidance. This covers your subscription cost — not penalties assessed by tax authorities.
Pick your plan. Know your VAT position before anyone asks.
Start free. No card required.
Starter
See if your numbers hold up.
- ✓1 upload/month — enough for a quarterly spot check
- ✓Country breakdown + compliance grade (A–F)
- ✓CSV export to share with your accountant
Trades
Know your RCT position, reclaim eligibility, and filing deadlines — without calling your accountant.
- ✓Unlimited uploads
- ✓Cash flow by bi-monthly VAT period — see what's due before it surprises you
- ✓VAT threshold tracker — know when €40k is approaching
- ✓Bad debt reclaim — flag overdue invoices where VAT is recoverable
- ✓RCT subcontractor module — see your actual take-home after withholding
- ✓Annual scheme advisor — qualify for 1 return instead of 6
- ✓PDF + CSV export for your accountant
Growth
For EU ecom founders who want to know their cross-border exposure — not find out at audit time.
- ✓Unlimited uploads
- ✓Anomaly detection — wrong country codes, wrong rates, missing VAT IDs flagged
- ✓AI compliance insights — what the numbers mean and what to fix
- ✓VAT rate simulator
- ✓OSS threshold monitor across all 27 EU markets
- ✓Filing deadline tracker
- ✓PDF + CSV export
Scale
For businesses and accountants who need both tools — EU exposure and Irish trades in one plan.
- ✓Everything in Growth — EU ecom, OSS, anomaly detection
- ✓Everything in Trades — RCT, bad debt, threshold tracker, annual scheme
- ✓Priority support — replies under 4 hours
- ✓Annual billing — save vs monthly
The average EU VAT penalty for late registration is 10–20% of the tax due (varies by member state). VATHack pays for itself by catching one threshold breach early.
Frequently asked questions
Your accountant is great at filing. They aren't always great at debugging a 10,000-row CSV from Stripe for country-code mismatches. VATHack gives them clean data so they can do their job without surprises.
Most founders have. VATHack is designed to surface those errors now, so you can voluntarily disclose them before an auditor finds them. It's the difference between a correction and a penalty.
VATHack applies the correct 2026 VAT rate for each EU member state to the net sales in your uploaded CSV. Standard rates are fully accurate across all 27 EU markets. Reduced and super-reduced rate detection is indicative — based on product category keywords — and should be reviewed for any line items where non-standard rates may apply.
We accept CSV files from any platform — Shopify, WooCommerce, Stripe, Amazon, or custom exports. Your file needs at minimum a country column and a sales amount. Our parser handles missing headers, blank rows, and common formatting quirks automatically.
No. Your CSV is processed server-side and discarded immediately after the analysis completes. We never store your transaction data beyond the current session. Only your account details and aggregated results are retained.
The EU One-Stop Shop (OSS) lets you declare and pay VAT from all EU cross-border B2C sales in a single return — avoiding separate registrations in every country. If your total EU cross-border sales exceed €10,000/year, OSS registration is likely required. VATHack tells you exactly where you stand.
Our rates are updated for 2026 and cover all 27 EU member states. We monitor EU Council directives and member-state announcements to keep rates accurate throughout the year.
The OSS report gives you a country-by-country filing summary for the quarter: net sales, applicable VAT rate, and VAT due per EU member state — formatted as a table you can hand directly to your accountant or tax agent. It exports as both CSV and PDF. It is not a submission file (OSS returns are filed through your national tax portal), but it contains exactly the numbers your accountant needs to complete that filing.
Yes. The Scale plan processes unlimited rows per run and has been tested to 100,000+ transactions in a single upload. A typical 50,000-row quarterly file completes in under 90 seconds. If you have specific volume requirements or need to process multiple entity CSVs in one run, contact us before subscribing and we will confirm your use case is covered.
Yes — cancel with one click from your profile page. Your access continues until the end of the billing period with no cancellation fees or questions asked.
We offer a 7-day refund on Growth and Scale plans. Contact us within 7 days of your first charge and we'll issue a full refund, no questions asked.
Check your exposure now.
Fix it before the quarter ends.
Most founders who upload their first file find at least one thing they didn't know about. Takes 60 seconds. Costs nothing. Worth knowing either way.
- ✓Free to start — no credit card required
- ✓Results in under a minute
- ✓27+ EU countries covered
Get your VAT grade free
Free to start · No credit card · Results in under a minute
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