Let our AI extract transactions from your foreign bank and broker PDFs, it calculates actual returns with daily ECB exchange rates, and generates OWR reports ready for the Belastingdienst. No spreadsheets. No guesswork.
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Our AI-powered tool makes Box 3 filing simple, secure, and accurate by handling all the complexity for you.
Upload your foreign asset data via PDF, Excel, or connect directly through API to popular brokers.
AI categorizes and calculates eligible income streams including interest, dividends, gains, and costs.
Auto-converts foreign currency into euros using daily ECB rates for accurate reporting.
Generate pre-filled OWR forms that align perfectly with Dutch tax authority requirements.
Security and privacy are essential. Your financial data is stored securely and never shared. We do not train on, or sell your data.
Includes deduction of eligible expenses and foreign withholding tax to minimize your tax burden.
Four simple steps to complete your OWR filing with confidence
Upload or connect your foreign asset data from brokerage accounts, savings accounts, or real estate holdings. Supports PDF, Excel, and API connections.
Our AI categorizes and calculates your actual returns, including interest, dividends, capital gains, and eligible deductions according to Dutch tax law.
Receive a pre-filled OWR form with detailed breakdowns. Review all calculations and make any necessary adjustments before submission.
Export your report in Belastingdienst-ready formats and submit via MijnBelastingdienst. Done in minutes instead of days.
Whether you're an expat, investor, or tax professional, we've got you covered
Living in the Netherlands with cross-border holdings? Navigate the complex Box 3 rules with confidence and avoid overpaying taxes.
Have accounts with DEGIRO, Interactive Brokers, or other foreign brokers? Easily import and calculate your actual returns for accurate filing.
Own real estate or have savings accounts outside the Netherlands? Report your actual yield correctly under the new werkelijk rendement system.
Streamline client submissions and save hours of manual work. Handle multiple OWR filings efficiently with our professional tools.
“I spent days last year figuring out what counted as ‘werkelijk rendement’. This tool got it done in under an hour. Absolutely worth it.”
“Finally, something that translates messy foreign statements into Dutch-ready numbers. My clients see exactly what flows into Box 3 without extra spreadsheets.”
“The ECB FX automation alone is worth it. I went from a weekend of manual conversions to uploading files and reviewing a clean OWR summary in minutes.”
No more guessing. No more spreadsheets. Just compliance, clarity, and peace of mind.