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Up-to-date content, guides, and expert analyses from the global business world.

Tax Due Diligence When Buying a Turkish Company
Tax Optimization6 min

Tax Due Diligence When Buying a Turkish Company

A practical 2026 guide to tax due diligence in Turkish acquisitions, from corporation tax and VAT checks to deal-structure and filing risk.

Berk Tüzel
Berk Tüzel
June 22, 2026
Estonia's 0% Corporate Tax on Retained Earnings
Tax Optimization7 min

Estonia's 0% Corporate Tax on Retained Earnings

Estonia's tax edge is real, but it is a deferral model. Retained profit sits untaxed until distribution, while salary, fringe benefits, and foreign PE risk change the file fast.

Berk Tüzel
Berk Tüzel
June 22, 2026
Controlled Foreign Company Rules in 2026
Tax Optimization7 min

Controlled Foreign Company Rules in 2026

CFC rules can tax foreign-company profits at home sooner than founders expect. The usual pressure points are control, low taxation, mobile income and weak substance.

Berk Tüzel
Berk Tüzel
June 21, 2026
How to Become an Estonian Tax Resident in 2026
Tax Optimization6 min

How to Become an Estonian Tax Resident in 2026

Estonian tax residency starts with place of residence or the 183-day test. The real work is aligning the move, income file, and treaty position before the tax office has to ask.

Berk Tüzel
Berk Tüzel
June 20, 2026
Permanent Establishment Risk Explained in 2026
Tax Optimization8 min

Permanent Establishment Risk Explained in 2026

Permanent establishment risk starts earlier than most founders expect. A desk, a sales closer, or a local team can move tax exposure into a new country fast.

Berk Tüzel
Berk Tüzel
June 20, 2026
Transfer Pricing Basics for Small International Businesses
Tax Optimization7 min

Transfer Pricing Basics for Small International Businesses

If your group invoices services, software, loans or inventory across borders, transfer pricing starts earlier than most small teams expect.

Berk Tüzel
Berk Tüzel
June 19, 2026
How to Legally Reduce Your Corporate Tax Bill in 2026
Tax Optimization7 min

How to Legally Reduce Your Corporate Tax Bill in 2026

A practical 2026 guide to lowering corporate tax legally through deductions, entity design, treaty relief, and disciplined documentation.

Berk Tüzel
Berk Tüzel
June 18, 2026
Living and Being Taxed in Estonia 2026
Tax Optimization7 min

Living and Being Taxed in Estonia 2026

A practical 2026 guide to moving to Estonia, becoming tax resident, and keeping salary, business, and immigration files aligned from day one.

Berk Tüzel
Berk Tüzel
June 17, 2026
International Tax Optimization for Founders 2026
Tax Optimization7 min

International Tax Optimization for Founders 2026

A practical guide to the pieces that actually move money: residency, management, transfer pricing, VAT, and the paper trail behind them.

Berk Tüzel
Berk Tüzel
June 17, 2026
How Digital Nomads Are Taxed in 2026: A Country-by-Country Guide
Tax Optimization9 min

How Digital Nomads Are Taxed in 2026: A Country-by-Country Guide

Portugal, Spain, Estonia, UAE, Thailand and more — a practical breakdown of how 9 countries tax remote workers in 2026 and how to avoid double taxation.

Berk Tüzel
Berk Tüzel
June 15, 2026
How Digital Nomads Are Taxed in 2026: A Country-by-Country Overview
Tax Optimization12 min

How Digital Nomads Are Taxed in 2026: A Country-by-Country Overview

A practical guide to tax residency, the best countries for digital nomad taxation in 2026, and how to avoid paying tax twice while working remotely across borders.

Berk Tüzel
Berk Tüzel
June 15, 2026
Turkey Tax Guide 2026 for Foreign Founders
Tax Optimization8 min

Turkey Tax Guide 2026 for Foreign Founders

A practical 2026 guide to Turkish corporate tax, VAT, withholding and filing dates for foreign-owned companies.

Berk Tüzel
Berk Tüzel
June 5, 2026
Tax Optimization for Entrepreneurs in Europe
Tax Optimization7 dk

Tax Optimization for Entrepreneurs in Europe

Tax optimization guide for entrepreneurs in Europe: advantages, strategies and compliance tips.

Berk Tüzel
Berk Tüzel
May 5, 2026
How to Obtain a Tax Residency Certificate
Tax Optimization6 dk

How to Obtain a Tax Residency Certificate

How to obtain a tax residency certificate? Required documents, application steps, and practical tips.

Berk Tüzel
Berk Tüzel
May 3, 2026
How Does Dual Citizenship Change Tax Obligations?
Tax Optimization7 dk

How Does Dual Citizenship Change Tax Obligations?

How does dual citizenship affect tax obligations? A guide to reporting, exemptions, and double taxation prevention.

Berk Tüzel
Berk Tüzel
April 21, 2026
Global Tax Advantages with Second Citizenship
Tax Optimization7 dk

Global Tax Advantages with Second Citizenship

A guide to tax advantages with second citizenship, low-tax options, and international financial opportunities.

Berk Tüzel
Berk Tüzel
April 17, 2026
The Intricacies of Opening a Bank Account for Offshore Companies in Europe
Tax Optimization5 dk

The Intricacies of Opening a Bank Account for Offshore Companies in Europe

The processes, requirements, and practical tips for opening a bank account for offshore companies in Europe.

Berk Tüzel
Berk Tüzel
April 15, 2026
Personal Tax Residency: Effects of Moving Abroad
Tax Optimization8 dk

Personal Tax Residency: Effects of Moving Abroad

A guide to the effects of moving abroad on personal tax obligations, double taxation, and residency status.

Berk Tüzel
Berk Tüzel
April 13, 2026
New Trends in Offshore Taxation
Tax Optimization8 dk

New Trends in Offshore Taxation

A current guide on new trends, regulations, and tax planning strategies in offshore taxation.

Berk Tüzel
Berk Tüzel
April 11, 2026
Best Countries in Europe to Establish an Offshore Company
Tax Optimization8 dk

Best Countries in Europe to Establish an Offshore Company

The most advantageous countries in Europe for establishing an offshore company, with comparisons of taxation, legal benefits, and costs.

Berk Tüzel
Berk Tüzel
April 11, 2026
The Importance of Consulting Services in Global Tax Planning
Tax Optimization6 dk

The Importance of Consulting Services in Global Tax Planning

Global tax planning consulting ensures tax compliance, reduces risk, and optimizes costs for multinational businesses.

Berk Tüzel
Berk Tüzel
April 9, 2026
Offshore Behavior in European Companies
Tax Optimization8 dk

Offshore Behavior in European Companies

Analysis of the reasons, impacts, and ethical and tax consequences of offshore practices in European companies.

Berk Tüzel
Berk Tüzel
April 5, 2026
Privacy and Security in Off-shore Companies
Tax Optimization9 dk

Privacy and Security in Off-shore Companies

Privacy and security in off-shore companies: risks, protection methods, and compliance guide.

Berk Tüzel
Berk Tüzel
April 1, 2026
Global Investment and Tax Advantages with Dual Citizenship
Tax Optimization9 dk

Global Investment and Tax Advantages with Dual Citizenship

International investment opportunities, tax advantages, and financial planning strategies with dual citizenship.

Berk Tüzel
Berk Tüzel
March 31, 2026

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