Explore Policy Research by Pillar
Select a thematic research domain to explore peer-reviewed dossiers, quantitative gross-to-net models, and cross-border fiscal guides.
Transatlantic Commerce & Remote Work
Cross-border corporate tax withholding, Form W-8BEN, Section 861/862 source-of-income rules, and permanent establishment avoidance.
Remote Work Across Borders: How European Contractors Navigate US Enterprise Payroll, W-8BEN & Self-Employment Liabilities
An exhaustive technical guide for European knowledge workers and software engineers contracting with US enterprises: IRS Form W-8BEN, Section 861/862 sourcing rules, 1099 vs W-2 misclassification, and domestic sole proprietorship filings.
W-8BEN vs. W-9: The Definitive Compliance Handbook for Non-US Contractors
A detailed technical comparison of IRS Form W-8BEN and Form W-9, clarifying withholding obligations, foreign status criteria, and common operational errors made by European freelancers contracting with US firms.
Sourcing of Personal Services Under IRC Sections 861 & 862: Why European Remote Workers Face 0% US Withholding
An in-depth statutory investigation into Internal Revenue Code Sections 861 and 862, demonstrating why compensation paid by US companies to European workers performing tasks abroad constitutes foreign-source income subject to 0% US withholding.
Foreign Worker Classification: Department of Labor Economic Realities & 1099-NEC vs. W-2 Liabilities
An extensive review of the US Department of Labor's 2024 worker classification regulations, evaluating legal liabilities, corporate payroll exposure, and why European freelancers should not receive Form 1099-NEC.
US Single-Member LLCs (Disregarded Entities) for European Remote Entrepreneurs: Form 5472 & 1120 Filings
An exhaustive analysis of US Single-Member Limited Liability Companies owned by foreign non-residents: evaluating disregarded entity tax status, Effectively Connected Income (ECI), and mandatory Form 5472/1120 filing compliance.
Managing USD-EUR Currency Volatility for International Remote Contractors: Fiscal & Operational Frameworks
An analytical guide examining currency risk management for European professionals receiving US Dollar compensation: FX volatility hedging, European Central Bank reference rate tax conversions, and digital multi-currency banking.
Mitigating Permanent Establishment (PE) Risk Under OECD Article 5 for US Firms Hiring in Europe
A detailed legal investigation into how remote employees and contractors create Permanent Establishment (PE) risks for US corporations under Article 5 of the OECD Model Tax Convention, outlining compliance mitigation strategies.
VAT on International B2B Services: Navigating EU Directive 2006/112/EC Article 44 for US Invoicing
An operational and legal breakdown of Value Added Tax (VAT) regulations governing B2B services exported from the EU to US corporate clients under Directive 2006/112/EC Article 44.
European Expat & Digital Nomad Regimes
Comparative tax frameworks across Croatia, Spain, Portugal (post-NHR IFICI), Italy, Form 2555 FEIE, and 183-day residency tests.
The European Expat & Digital Nomad Tax Guide: Comparative Fiscal Regimes Across Croatia, Portugal & Germany
A comprehensive comparative analysis evaluating statutory tax rules, 183-day residency tests, and bilateral treaties for digital nomads and expatriates across Croatia, Portugal, and Germany.
Deep Dive: Article 9 Croatian Income Tax Act Exemption Mechanics for Third-Country Nomads
An exhaustive statutory dissection of Article 9 of the Croatian Income Tax Act, examining the zero-tax treatment, visa qualification criteria, bank statement verifications, and family reunification rules for international remote workers.
Portugal’s IFICI (Tax Incentive for Scientific Research): Qualifying Criteria, Tech Startups, and 20% Flat Rates
An extensive policy review of Portugal's replacement for the Non-Habitual Resident (NHR) program: the IFICI regime, evaluating eligible professions, startup certification rules, and the 20% flat tax on employment and freelance income.
Spain’s Beckham Law vs. Digital Nomad Visa: Special Expatriate Tax Regimes Under Law 28/2022
A comparative technical dissection of Spain's Beckham Law (Special Expatriate Regime) and the Spanish Digital Nomad Visa under the 2022 Startup Act: evaluating the 24% flat tax, eligibility thresholds, and wealth tax considerations.
Italy’s Lavoratori Impatriati Regime: 50% vs. 70% Income Exemption Mechanics and Post-2024 Reforms
An analytical study of Italy's Impatriati tax regime following the major Legislative Decree 209/2023 reforms: evaluating the 50% taxable base reduction, qualifying degree requirements, and regional incentives for Southern Italy.
The 183-Day Physical Presence Test vs. Center of Vital Interests: Resolving Dual Residency Under OECD Article 4
An exhaustive legal guide deconstructing the 183-day physical presence test, the center of vital interests doctrine, and the hierarchical tie-breaker rules under Article 4 of the OECD Model Tax Convention.
The Foreign Earned Income Exclusion (IRC § 911): Physical Presence Test vs. Bona Fide Residence for US Citizens in Europe
An exhaustive compliance guide for US citizens residing in Europe utilizing the Foreign Earned Income Exclusion (FEIE): comparing the 330-day Physical Presence Test against the Bona Fide Residence Test under IRC § 911.
Foreign Tax Credit (Form 1116) vs. FEIE: Optimal Dual-Tax Mitigation for Transatlantic Earners
A comparative quantitative analysis evaluating whether US expatriates in Europe should claim the Foreign Earned Income Exclusion (Form 2555) or the Foreign Tax Credit (Form 1116), modeling carryovers and IRA eligibility.
European Labor Taxation & Gross-to-Net Dynamics
Comparative tax wedges, mandatory social insurance contributions, bracket creep (fiscal drag), and post-prirez municipal tax reforms.
Labor Tax Wedges & Net Take-Home Pay in the European Single Market: A Comparative Analysis of Gross-to-Net Salary Formulas
An empirical cross-country evaluation dissecting gross-to-net wage formulas across Germany, Austria, Croatia, Poland, and Slovenia, quantifying employee deductions, employer payroll surcharges, and real net wage retention.
A New Economic Agenda for Southeast Europe: Fiscal Governance, Regional Trade & Structural Reforms
An extensive policy framework addressing post-transition structural deficits, public investment gaps, and the imperative for cross-border fiscal coordination among Southeast European economies.
Hrvatska 'Zimmer Frei' Ekonomija: Politička Ekonomija Rente, Porezne Asimetrije i Tržišta Rada
Temeljna studija političke ekonomije koja istražuje kako porezna asimetrija u korist kratkoročnog turističkog najma destimulira rad, stvara stambenu krizu i usmjerava nacionalni kapital u neproduktivne nekretnine.
Labor Mobility, Tax Wedges & Emigration Dynamics in Central and Southeast Europe
An empirical demographic analysis tracking the economic push-and-pull factors behind youth emigration from Croatia and the Western Balkans to Germany, Austria, and Ireland.
The German Lohnsteuer Architecture: Section 32a EStG Tariff Zones, Solidaritätszuschlag, and Take-Home Realities
An exhaustive mathematical analysis of the German wage tax (Lohnsteuer) system under § 32a EStG, evaluating the five tariff zones, tax classes (Steuerklassen), solidarity surcharges, and social insurance parity.
Gross 1 vs. Gross 2 in Croatia: The Impact of Abolishing Municipal Prirez on Take-Home Pay
An empirical policy evaluation of Croatia's historic 2024 tax reform: the abolition of the local surtax (prirez), the introduction of municipal income tax rate autonomy, and the resulting changes in net take-home pay.
Austrian Labor Taxation: Dienstgeberbeitrag, 7-Tier Progressive Brackets, and Family Bonus Plus
A comprehensive breakdown of Austrian labor taxation: the 7-tier progressive Einkommensteuer schedule, employer payroll surcharges (Dienstgeberbeitrag), social insurance ceilings, and the Familienbonus Plus.
Flat vs. Progressive Income Taxation in Central and Eastern Europe: Competitiveness and Fiscal Drift
An empirical macroeconomic analysis comparing the flat-tax experiments of Central and Eastern Europe against progressive taxation, assessing capital formation, income inequality, and tax compliance over two decades.
The Mechanics of Fiscal Drag: How Inflation and Unindexed Tax Brackets Erode Real Take-Home Pay
An empirical macroeconomic investigation into fiscal drag (bracket creep) during inflationary cycles: quantifying how unindexed progressive tax brackets quietly erode real disposable wages and generate stealth government revenue.
Small Business, Solopreneurs & Corporate Structuring
Paušalni obrt vs. d.o.o., German Freiberufler trade tax, French micro-entreprise, Polish Ryczałt, and pass-through QBI.
Paušalni Obrt vs. D.O.O. in Croatia: Revenue Caps, Substance Tests, and Dividend Withholding
An extensive comparative analysis of business incorporation models in Croatia: evaluating the fiscal efficiency of the paušalni obrt against the corporate d.o.o., examining revenue caps, substance audits, and dividend taxes.
German Freiberufler vs. Gewerbe: Avoiding Municipal Trade Tax (Gewerbesteuer) for Tech Freelancers
A detailed legal guide to German small business classification: differentiating the liberal profession (Freiberufler) from commercial trade (Gewerbetreibender), outlining strategies to avoid municipal trade tax (Gewerbesteuer).
The French Micro-Entreprise Regime: Turnover Ceilings, Cotisations Sociales, and Versement Libératoire
An exhaustive analysis of France's micro-entreprise (auto-entrepreneur) regime: statutory turnover caps, Urssaf social security contributions (cotisations sociales), and the versement libératoire tax discharge.
Polish Ryczałt vs. Liniowy 19%: The 12% Flat Tax Architecture for IT and Software Engineers
A detailed technical review of Poland's Ryczałt (lump-sum tax) regime for IT specialists and software engineers: evaluating the 12% flat revenue rate, the 19% linear tax (Podatek Liniowy), and Polish Order health contribution rules.
S-Corporation vs. C-Corporation for High-Income Remote Contractors: Reasonable Compensation & QBI
An analytical comparison between S-Corporation and C-Corporation structures for international and US-connected remote entrepreneurs: evaluating the Section 199A QBI deduction, reasonable compensation rules, and corporate tax rates.
Navigating the Section 199A QBI Deduction: 20% Pass-Through Write-Offs and SSTB Phase-Outs
An exhaustive guide to the Section 199A Qualified Business Income (QBI) deduction: evaluating the 20% write-off for sole proprietors and S-Corps, Specified Service Trade or Business (SSTB) exclusions, and W-2 wage thresholds.
Cross-Border Dividend Withholding: Double Tax Treaties vs. EU Parent-Subsidiary Directive
An extensive technical investigation into cross-border corporate dividend distribution: comparing withholding tax exemptions under the EU Parent-Subsidiary Directive against bilateral double taxation conventions.
Safe Harbor Rules and Estimated Quarterly Tax Calculations: Avoiding Underpayment Penalties
An operational and mathematical guide to calculating US estimated quarterly tax payments, avoiding underpayment penalties under IRC § 6654, and leveraging statutory safe harbor rules for freelancers and business owners.
Social Security, Totalization & Cross-Border Retirement
EU Regulation 883/2004 telework coordination, US-European totalization agreements, Solo 401(k), and Backdoor Roth planning.
EU Regulation 883/2004: Single-State Legislation, A1 Certificates, and Remote Cross-Border Posting
An exhaustive analysis of European Union Regulation (EC) No 883/2004 on social security coordination: evaluating the single-state principle, A1 portable document mechanics, and cross-border telework rules.
US-European Totalization Agreements: Eliminating Dual Social Security (FICA) Contributions
An exhaustive guide to bilateral Social Security Totalization Agreements between the United States and European nations: eliminating dual FICA/SECA taxation and combining work credits for international retirement pensions.
International Pension Portability: Navigating QROPS, Pillar II/III Savings, and Host Country Taxability
A detailed technical review of cross-border pension portability in Europe: evaluating Qualifying Recognised Overseas Pension Schemes (QROPS), the Pan-European Personal Pension Product (PEPP), and bilateral tax treaty treatment of retirement distributions.
Solo 401(k) vs. SEP-IRA: Maximum Tax-Advantaged Retirement Contributions for Self-Employed Individuals
An exhaustive mathematical and statutory comparison between the Solo 401(k) and the SEP-IRA for self-employed professionals: evaluating 2026 contribution limits, employee elective deferrals, profit-sharing formulas, and Roth options.
Traditional vs. Roth IRA in Transatlantic Planning: Upfront Deduction vs. Tax-Free Distribution
An in-depth comparative guide evaluating Traditional vs. Roth IRAs in transatlantic financial planning: comparing upfront marginal tax deductions against future tax-free growth, and analyzing foreign treaty recognition.
The Windfall Elimination Provision (WEP) & Government Pension Offset (GPO) for European Expats
An extensive policy investigation into the Windfall Elimination Provision (WEP) and Government Pension Offset (GPO): evaluating how European state and private pensions reduce US Social Security benefits, and exploring the 30-year substantial earnings exemption.
Statutory vs. Private Health Insurance in Cross-Border European Mobility: Parity Contributions and E106 Forms
A comprehensive comparative study of European healthcare systems: statutory public health insurance (GKV, HZZO), employer parity contributions, S1 cross-border forms, and private health insurance mandates for expats.
The Backdoor Roth IRA Strategy and IRS Pro-Rata Rules: Tax-Free Growth for High Earners
An exhaustive guide to the Backdoor Roth IRA strategy for high-income earners: navigating statutory income caps, avoiding the Section 408(d)(3) pro-rata rule, executing clean conversions, and properly filing IRS Form 8606.
Macroeconomic Policy, Inflation & Sovereign Fiscal Governance
Purchasing power parity (PPP), housing affordability, capital gains regimes, sovereign yield spreads, and OECD Pillar Two.
Macroeconomic Recovery & Inflation Dynamics in Small Open Economies: Comparative Fiscal Responses
Comparative analysis of post-crisis fiscal stimulus, energy subsidy designs, and purchasing power parity shifts across small open European economies.
Goli Otok Historical Memorial & Political Topography: The English-Language Cultural Heritage Study
The definitive English-language summary and architectural preservation documentation detailing the historical landscape, political context, and memory culture of the Goli Otok detention facility.
Measuring Real Wealth: Purchasing Power Parity (PPP) vs. Nominal Gross Wages in the Single Market
An empirical macroeconomic analysis comparing Purchasing Power Parity (PPP) standards against nominal gross earnings across the EU-27: deconstructing Eurostat price level indices and true living standard convergence.
Housing Affordability & Rentier Capitalism: Real Estate Transfer Taxes vs. Property Holding Taxes
An empirical macroeconomic investigation into the European housing affordability crisis in tourism-dominated economies: evaluating property transfer taxes vs. annual holding taxes, short-term rental externalities, and generational wealth inequality.
Capital Preservation in High-Inflation Regimes: Sovereign Bonds, CPI Indexation, and Asset Realities
A macroeconomic evaluation of capital preservation strategies during persistent inflation regimes: comparing European sovereign nominal bonds against inflation-linked securities (ILBs), real estate, and equity asset classes.
Capital Gains Taxation Across Europe: Holding Periods, Speculation Windows, and Flat Rates
An extensive comparative survey of capital gains taxation in Europe: evaluating holding period exemptions for equities and real estate in Germany, Croatia, Belgium, and France, examining cryptocurrency tax frameworks, and tax-loss harvesting rules.
Industrial Policy After Energy Shocks: Subsidies, Green Transition, and Trade Exposure
An empirical macroeconomic analysis of industrial energy cost shocks in Central and Eastern Europe: evaluating electricity market merit-order dynamics, sovereign subsidy disparities, and the European Green Deal transition.
Eurozone Fiscal Governance: The Stability and Growth Pact, Sovereign Spreads, and Fiscal Space
An analytical investigation into the reformed Stability and Growth Pact: evaluating national debt sustainability analyses, the 3% deficit and 60% debt thresholds, and the ECB Transmission Protection Instrument (TPI).
OECD Pillar Two in Europe: The 15% Global Minimum Corporate Tax and Its Impact on Regional Investment
An extensive technical investigation into the implementation of OECD Pillar Two across the European Union under Directive 2022/2523: evaluating the 15% minimum effective corporate tax rate, the Income Inclusion Rule, and QDMTT mechanisms.