Turkish Tax Rules and US Banking for LLC Owners (2026)

Turkish founders who operate US LLCs sit at the intersection of two tax systems, two currencies, and one of the more favorable bilateral tax treaties available to cross-border entrepreneurs. Turkey's Gelir İdaresi Başkanlığı (GIB — Revenue Administration) taxes residents on worldwide income, meaning every dollar earned through a US LLC is reportable on the annual Turkish income tax return. At the same time, the Turkish Lira's persistent depreciation — roughly 80% loss against the USD since 2020 — has made USD-denominated revenue not a preference but a structural necessity for anyone building a business with international clients. The Turkey-US income tax treaty, signed in 1996, provides mechanisms for avoiding double taxation that are more straightforward than many comparable agreements.

I have spent two decades structuring cross-border operations between the US and emerging markets. The Turkey corridor is one where the macro environment — currency instability, high domestic inflation, and a modernizing tax administration — shapes structural decisions as much as the legal framework does. The founders who navigate this well are the ones who understand all three layers: GIB obligations, treaty protections, and currency mechanics.

GIB Taxation: Worldwide Income for Turkish Residents

Turkey taxes individual residents on worldwide income under the Gelir Vergisi Kanunu (Income Tax Law No. 193). The GIB is the implementing authority, operating under the Ministry of Treasury and Finance.

Who Is a Turkish Tax Resident?

Turkish tax residency is determined by domicile and physical presence. An individual is a Turkish tax resident if they:

• Have a legal domicile (ikametgah) in Turkey, OR
• Spend more than six consecutive months in Turkey in a calendar year (temporary absences for travel, health, or education do not interrupt the count)

There is no 183-day test like many OECD countries use. The six-month rule is based on continuous presence, not aggregate days. A founder who lives in Istanbul from January through June and moves to the US in July is a Turkish resident for that tax year — the first six months of continuous presence triggers full-year worldwide taxation.

Progressive Tax Rates (2026)

Turkey applies progressive income tax rates to total annual income. The 2026 brackets (set annually by the GIB, typically announced in December for the following year) follow the pattern established in recent years:

These brackets are denominated in TRY. For a Turkish founder earning $100,000 USD through a US LLC, the TRY equivalent at March 2026 exchange rates (~36 TRY/USD) is approximately 3,600,000 TRY — placing the top portion of income in the 40% bracket. Currency depreciation pushes USD earners into higher Turkish tax brackets even when their real USD income is flat.

How US LLC Income Is Classified

Income earned through a US LLC by a Turkish resident is classified as ticari kazanç (commercial income) under Article 37 of the Income Tax Law. This is the same classification applied to income from a Turkish sole proprietorship or partnership.

The GIB does not recognize the US "disregarded entity" concept. A US single-member LLC is a separate legal entity formed under US state law. However, because it is fiscally transparent for US purposes (the IRS does not tax the entity itself), the income flows through to the individual owner — and Turkey taxes the individual on their worldwide income regardless of entity classification.

The practical result: the Turkish founder reports the LLC's net income as commercial income on their annual return, converted to TRY at the exchange rate applicable on the date the income was earned or at the average annual rate (the GIB accepts either method, but consistency is required year over year).

Annual Income Tax Return (Mart Beyannamesi)

Turkish residents who earn income from foreign sources file an annual income tax return by March 25 of the following year (the "Mart Beyannamesi" — March declaration). For income earned in 2025, the return is due March 25, 2026.

Key requirements:

• All worldwide income is reported, including US LLC income, even if no US tax was paid
• Foreign income is converted to TRY using the TCMB (Central Bank of the Republic of Turkey) exchange rate
• Provisional tax payments (geçici vergi) are due quarterly — the 14th of the second month following each quarter (May 14, August 14, November 14, February 14)
• Foreign tax credits for taxes paid to the US (if any) are claimed on the return under Article 123 of the Income Tax Law

A Turkish founder with a US LLC who has no US tax liability (no US-source income, no US PE) has no US taxes to credit against the Turkish liability. The full Turkish tax rate applies to the LLC income.

The Turkey-US Tax Treaty

The Convention Between the Government of the Republic of Turkey and the Government of the United States of America for the Avoidance of Double Taxation and the Prevention of Fiscal Evasion with Respect to Taxes on Income was signed on March 28, 1996, and entered into force on December 19, 1997. It has not been amended since.

Three articles are particularly relevant for Turkish founders with US LLCs.

Article 7: Business Profits

Business profits of an enterprise of one contracting state are taxable only in that state, unless the enterprise carries on business in the other state through a permanent establishment (PE) situated there. If a PE exists, the other state can tax only the profits attributable to the PE.

For a Turkish founder operating a US LLC entirely from Turkey — serving clients globally from Istanbul, with no US office, no US employees, and no fixed place of business in the US — Article 7 means the US has no right to tax the LLC's business profits. Turkey has exclusive taxing rights.

This is the most favorable outcome possible for a cross-border LLC structure: one country (Turkey) taxes the income, and the other (the US) does not. There is no double taxation to eliminate because the US never taxes the income in the first place.

Article 5: Permanent Establishment

A PE under the Turkey-US treaty is defined as a fixed place of business through which the business is wholly or partly carried on. The definition includes a place of management, branch, office, factory, workshop, and extraction sites.

The PE analysis matters because it determines whether Article 7's protection holds. If a Turkish founder's US LLC has a PE in the US, Article 7's exclusion breaks — the US can tax profits attributable to the PE.

What creates a PE risk for Turkish LLC owners:

• Renting office space or co-working desks in the US
• Hiring US-based employees who represent the business
• A dependent agent in the US who habitually concludes contracts on the LLC's behalf
• Extended physical presence in the US (the treaty does not specify an exact day count, but US domestic law and IRS guidance use various thresholds)

What generally does not create a PE:

• Using a US registered agent service (this is a statutory requirement, not a business presence)
• Having a US bank account (a bank account is not a fixed place of business)
• Serving US clients remotely from Turkey
• Using US-based SaaS tools, hosting providers, or payment processors

Article 14: Independent Personal Services

Article 14 addresses income from professional services or other independent activities. A resident of one country performing independent services in the other country is taxable in the other country only if they have a "fixed base" regularly available to them there, or if they are present in the other country for 183 days or more in any twelve-month period.

For Turkish freelancers and consultants operating through US LLCs: if services are performed entirely from Turkey, Article 14 provides additional protection against US taxation — even if the LLC itself is a US entity. The income is taxable only in Turkey.

Article 23: Elimination of Double Taxation

When income is taxable in both countries (because a PE or fixed base exists), Article 23 provides relief through the credit method. Turkey allows a credit for US taxes paid on income that is also subject to Turkish tax, limited to the amount of Turkish tax attributable to that income.

The mechanics: if a Turkish founder's US LLC has a PE in the US and the US taxes $50,000 of attributable profits at the US effective rate, the founder claims a credit against their Turkish tax liability for the US tax paid. The credit cannot exceed the Turkish tax otherwise payable on the same income.

In the more common scenario — no US PE, no US tax — Article 23 is not needed. Turkey taxes the full income, and no credit mechanism is triggered.

Why This Treaty Is Relatively Favorable

The Turkey-US treaty has a structural advantage compared to some other bilateral agreements:

• No hybrid entity mismatch: Unlike the Canada-US treaty, where the CRA treats US LLCs as foreign corporations (creating a classification gap), Turkey's approach of taxing the individual on worldwide income regardless of entity classification avoids the mismatch. Turkey does not need to "look through" the LLC — it taxes the person directly.
• Clear PE threshold: The treaty's PE definition is conventional and well-understood. Turkish founders who operate purely from Turkey face minimal PE risk.
• Credit method works cleanly: When US tax is paid (PE situations), the credit mechanism under Article 23 is straightforward — no complex "underlying tax" calculations like those required under some treaties.

The treaty does not, however, address currency conversion rules, which Turkey's domestic law governs entirely.

US Banking for Turkish Nationals

Turkey is not a restricted jurisdiction for US banking purposes. Turkish passport holders can open US business bank accounts without a US visa, without a US Social Security Number, and without a US visit — depending on the banking provider.

Mercury

Mercury is the most commonly used banking option among non-resident LLC owners, including Turkish founders. The onboarding process is entirely remote.

Turkish-specific factors:

• Turkish passport is accepted as primary identification
• No SSN required — an ITIN or EIN is sufficient for account opening
• No requirement to visit the US
• Funds are FDIC insured up to $5M through partner banks (Evolve Bank & Trust, Choice Financial Group)
• USD-only accounts — Mercury does not hold TRY or convert currencies natively
• ACH, domestic wires, and international wires all available

Mercury is not a bank. It is a fintech company that provides banking services through partner banks. Mercury Banking LLC is a financial technology company, not a bank. Banking services are provided by Choice Financial Group and Evolve Bank & Trust, Members FDIC.

Documentation typically required: LLC formation documents (Articles of Organization), EIN confirmation letter, operating agreement, Turkish passport, proof of address (utility bill or bank statement, Turkish address accepted).

Wise Business

Wise Business provides multi-currency accounts — including both USD and TRY account details — which makes it particularly relevant for Turkish founders who need to hold both currencies.

Turkish-specific factors:

• Turkish passport accepted for identity verification
• Provides local USD account details (ACH routing and account number) for receiving US domestic payments
• Also provides TRY account details for receiving Turkish domestic payments
• Mid-market exchange rate conversions between USD and TRY with transparent fees (typically 0.4-0.6% for USD→TRY)
• Not FDIC-insured — funds are safeguarded in ring-fenced accounts at partner banks

The trade-off: Wise is not a full US bank account. It lacks lending products, check deposit capability, and may not satisfy "US bank account" requirements for certain payment processors or government agencies. For Turkish founders, Wise works well as a conversion layer — receiving USD, converting what is needed to TRY — while Mercury serves as the primary US banking account.

Relay

Relay is another US fintech banking option that accepts non-resident LLC owners. It offers sub-accounts for organizing funds (useful for separating tax reserves, operating expenses, and savings) and integrates with QuickBooks and Xero.

Turkish-specific factors:

• Turkish passport accepted
• No monthly fees, no minimum balance
• FDIC insured up to $250,000 per depositor through Thread Bank
• USD only — no multi-currency capability
• Remote onboarding available

Banking Setup Pattern for Turkish Founders

A common configuration among Turkish founders operating US LLCs:

1. Mercury — Primary US business account. Client invoices, payment processor deposits, US vendor payments
2. Wise Business — Currency conversion layer. USD→TRY transfers at mid-market rates, TRY account for Turkish expenses
3. Turkish domestic bank (İş Bankası, Garanti BBVA, Yapı Kredi, etc.) — TRY operating account for local expenses, tax payments, personal spending

This three-account structure keeps USD revenue in USD for as long as possible, converts only what is needed for Turkish expenses, and maintains clean separation between US business funds and Turkish personal/business funds.

European Banking as Intermediary

Some Turkish founders route funds through European banking providers before converting to TRY. This adds a layer of currency diversification and access to EUR-denominated services.

Why European Banks

• N26 and Revolut both accept Turkish nationals for personal and business accounts
• EUR accounts provide an alternative store of value when both TRY and USD are volatile (though EUR has been more stable than TRY, it has depreciated against USD in recent years)
• Some Turkish founders have EU clients who pay in EUR — holding EUR avoids a double conversion (EUR→USD→TRY)
• Turkey's geographic and economic ties to Europe make EUR liquidity practically useful

The Added Complexity

Every additional jurisdiction in the banking chain adds reporting obligations:

• CRS (Common Reporting Standard): European banks report account balances and income to Turkey under the automatic exchange of information framework. Turkish tax authorities receive data on accounts held by Turkish residents in CRS-participating jurisdictions.
• Turkish foreign asset reporting: Turkish residents with foreign financial accounts are required to report them. Multiple accounts across multiple jurisdictions increase the reporting surface.
• Conversion costs: Two conversions (USD→EUR→TRY or EUR→TRY) instead of one (USD→TRY) add friction and cost.

The European intermediary path makes sense when the founder has genuine EUR revenue streams. Using European accounts purely as a pass-through for USD→TRY conversion adds complexity without clear benefit.

MASAK Compliance

MASAK (Mali Suçları Araştırma Kurulu — Financial Crimes Investigation Board) is Turkey's financial intelligence unit, equivalent to FinCEN in the US. It operates under the Ministry of Treasury and Finance and enforces anti-money laundering (AML) and counter-terrorism financing (CTF) regulations.

What Turkish LLC Owners Need to Know

Foreign asset and income disclosure: Turkish residents are required to report foreign financial assets, including US bank accounts and income from foreign entities, as part of their annual tax filing. The GIB and MASAK share information — underreporting foreign income that is visible through CRS data exchange triggers scrutiny.

Transaction monitoring thresholds:

• Cash transactions exceeding TRY 200,000 (~$5,600 at March 2026 rates) are reported to MASAK by Turkish financial institutions
• International wire transfers are monitored for patterns inconsistent with declared income sources
• Large or unusual inflows to Turkish bank accounts from foreign sources may trigger a MASAK inquiry

CRS data exchange: Turkey participates in the OECD's Common Reporting Standard. Financial institutions in CRS-participating jurisdictions (which includes the US under FATCA, and all EU member states under CRS) automatically report account information of Turkish tax residents to the GIB. A Turkish founder with a Mercury account holding $200,000 — that information flows to Turkey.

Practical implications:

• The US reports under FATCA (Foreign Account Tax Compliance Act), not CRS, but the effect is similar — Turkish tax authorities receive information about accounts held by Turkish persons at US financial institutions
• Maintaining a US LLC and US bank account while being a Turkish tax resident is entirely legal — the requirement is accurate reporting, not avoidance of foreign accounts
• The risk arises when foreign account balances or income are inconsistent with what is reported on the Turkish tax return

Currency Management: The Lira Factor

The Turkish Lira has been one of the worst-performing major currencies of the past decade. From approximately 7 TRY/USD in January 2020 to approximately 36 TRY/USD in March 2026, the depreciation has been roughly 80%. Annual inflation exceeded 80% in 2022 and has remained elevated, running between 40-65% through 2024-2025.

For Turkish founders with US LLCs, this creates a structural dynamic that differs from most other cross-border corridors.

The Mechanics

Earning in USD: Revenue from international clients is denominated in USD. This revenue holds its purchasing power relative to the global economy, regardless of what happens to the Lira.

Holding in USD: Keeping funds in a US bank account (Mercury, Relay) means the money is not exposed to Lira depreciation. A founder who earns $10,000 in January and holds it in Mercury until June has $10,000 in June — while the same amount converted to TRY in January would have lost value relative to USD.

Converting minimum to TRY: Turkish domestic expenses — rent, utilities, local staff, food, transportation, tax payments — are denominated in TRY. The founder converts only what is needed for these expenses, when it is needed.

Tax bracket interaction: Because Turkish tax brackets are denominated in TRY, and because the Lira depreciates against the USD, the same USD income pushes the founder into higher TRY brackets over time. A founder earning $100,000/year pays more Turkish tax (in real USD terms) each year even if their dollar income is unchanged — because the TRY equivalent grows as the Lira weakens. This is a structural cost that no treaty provision addresses.

What This Means in Practice

A Turkish founder earning $8,000/month through a US LLC with $3,000/month in Turkish expenses:

• $8,000 deposited monthly into Mercury (USD)
• $3,000 equivalent in TRY converted monthly through Wise Business at mid-market rate (~108,000 TRY at 36 TRY/USD)
• $5,000 remains in USD in Mercury, not exposed to Lira depreciation
• Quarterly provisional tax payments (geçici vergi) are made in TRY from the Turkish bank account
• Annual income tax settled in March on the full $96,000 annual income, converted to TRY

The key structural point: the founder's real wealth is denominated in USD. Turkish tax obligations are a cost denominated in TRY that is paid from a portion of USD earnings. The longer the founder can hold USD before converting, the more purchasing power is preserved — though tax obligations create a floor on conversion timing.

Comparison: Turkish Anonim Şirket (A.Ş.) vs US LLC

Turkish founders face a structural choice between a domestic Turkish company and a US LLC. The decision depends on client location, revenue currency, and long-term plans.

Turkish Anonim Şirket (A.Ş.)

An A.Ş. is a Turkish joint stock company — the closest equivalent to a US corporation. It is the standard structure for Turkish businesses that want institutional credibility, the ability to issue shares, and access to Turkish banking and government contracts.

Key characteristics:

• Minimum share capital: TRY 250,000 (raised from TRY 50,000 effective January 2024)
• Corporate tax rate: 25% (2024-2026)
• Dividend distribution withholding: 10%
• Subject to Turkish commercial code governance requirements (board of directors, annual general meetings, independent auditor for companies exceeding size thresholds)
• All revenue denominated in TRY by default (though foreign currency invoicing is permitted for international transactions)

US LLC (Single-Member, Disregarded)

A US single-member LLC formed in Wyoming or Delaware, operated from Turkey, with no US PE.

Key characteristics:

• No minimum capital requirement
• No US federal income tax on the LLC's income (flows through to the individual, who is not a US person)
• No US state income tax (Wyoming) or only franchise tax (Delaware, $300/year)
• Revenue denominated in USD
• Access to US banking and payment infrastructure

Comparison Table

When Each Structure Fits

The A.Ş. fits when:

• Primary clients are Turkish companies or government entities
• The business requires Turkish commercial credibility (tenders, partnerships, licenses)
• The founder plans to hire Turkish employees at scale
• Revenue is primarily in TRY

The US LLC fits when:

• Primary clients are international (US, EU, global)
• Revenue is denominated in USD or other hard currencies
• The founder wants to minimize Lira exposure on revenue
• US banking and payment infrastructure are needed
• The business is location-independent (consulting, SaaS, freelance services)

Both structures simultaneously is also a valid configuration. Some Turkish founders maintain an A.Ş. for Turkish domestic business and a US LLC for international revenue. This creates parallel tax reporting obligations but cleanly separates currency exposure and client relationships.

For a detailed walkthrough of the US LLC formation process from Turkey, see the US LLC formation guide for Turkish residents.

FAQ

Does the Turkey-US treaty apply to US LLC income?

The treaty applies to income earned by a "resident" of one contracting state. A Turkish founder who is a Turkish tax resident qualifies. Because the US treats the single-member LLC as a disregarded entity, the income is attributed to the individual owner for treaty purposes. Article 7 protects business profits from US taxation when no US PE exists. The treaty does not require Turkey to classify the LLC in any particular way — Turkey taxes the individual on their worldwide income, and the treaty prevents the US from also taxing that income.

How do I pay Turkish taxes on US LLC income?

Report the LLC's net income as ticari kazanç (commercial income) on your annual income tax return, filed through the GIB's interactive tax office portal. Convert USD income to TRY using the TCMB exchange rate. Pay quarterly provisional tax (geçici vergi beyannamesi) and settle the balance with the annual March filing. A Turkish Serbest Muhasebeci Mali Müşavir (SMMM — certified public accountant) is typically engaged to handle the filings, as foreign income reporting adds complexity beyond a standard domestic return.

Can my Mercury account be seen by Turkish tax authorities?

Yes. Under FATCA, US financial institutions report account information of foreign persons to the IRS, which then exchanges that information with treaty partners. Turkey receives FATCA data on Turkish tax residents holding accounts at US financial institutions. The account balance, interest income, and gross proceeds are reported. This is automatic — no subpoena or inquiry is required. Accurate reporting on the Turkish return prevents discrepancies between what the GIB receives through FATCA and what the founder declares.

Is it legal to hold USD and delay converting to TRY?

Yes. There is no Turkish law requiring Turkish residents to convert foreign currency earnings to TRY within any specific timeframe. The TCMB and MASAK do not mandate repatriation of foreign earnings. The GIB's concern is accurate reporting and tax payment — not where the money is held. Tax obligations are calculated based on income earned, not income converted. The founder's TRY tax liability is the same whether the USD is held in Mercury or converted to TRY on the day it is received.

What US tax filings are required for a Turkish-owned US LLC?

A Turkish-owned US single-member LLC with no US-source income and no US PE typically has these filing obligations: (1) Form 5472 — annual information return reporting transactions between the LLC and its foreign owner, due with a pro forma Form 1120, (2) EIN maintenance — the LLC needs an active Employer Identification Number, (3) State filings — annual report and/or franchise tax in the state of formation (Wyoming annual report $60, Delaware franchise tax $300), (4) Registered agent — maintained continuously in the state of formation. Missing Form 5472 carries a $25,000 penalty per form per year, making it the highest-stakes compliance item for foreign-owned US LLCs.

Key Takeaways

• Turkish residents are taxed on worldwide income by the GIB at progressive rates up to 40% — US LLC income is classified as ticari kazanç (commercial income) and reported on the annual Mart beyannamesi
• The Turkey-US tax treaty (Article 7) allows Turkish residents to avoid US taxation on business profits when no US permanent establishment exists — making the treaty one of the more favorable arrangements for LLC owners
• Turkey is not a restricted jurisdiction for US banking — Mercury, Wise Business, and Relay all accept Turkish nationals for remote account opening
• The Lira's depreciation (~80% against USD since 2020) makes USD-denominated revenue structurally important — holding USD and converting minimum amounts to TRY for expenses preserves purchasing power
• MASAK and CRS/FATCA data exchange mean Turkish authorities have visibility into US accounts — the requirement is accurate reporting, not avoidance of foreign accounts
• A three-account structure (Mercury for USD banking, Wise for currency conversion, Turkish bank for TRY expenses) is a common configuration among Turkish founders with US LLCs
• The choice between a Turkish A.Ş. and a US LLC depends on client location, revenue currency, and Lira exposure tolerance — both structures simultaneously is a valid option

References

• GIB (Gelir İdaresi Başkanlığı) — Income Tax Guide — Turkish Revenue Administration tax law and regulations
• Turkey-US Income Tax Treaty (IRS) — Full text of the 1996 Convention
• MASAK (Mali Suçları Araştırma Kurulu) — Turkey's Financial Crimes Investigation Board, AML/CTF regulations
• TCMB Exchange Rates — Central Bank of the Republic of Turkey official exchange rates
• Income Tax Law No. 193 (Gelir Vergisi Kanunu) — Full text of Turkey's income tax law
• OECD CRS Implementation by Jurisdiction — Turkey's CRS commitment and exchange relationships
• IRS Form 5472 Instructions — Filing requirements for foreign-owned US disregarded entities
• Mercury Banking for Non-Residents — Comparison of US banking options for non-resident LLC owners
• Tax Residency Determination Guide — How residency rules interact across jurisdictions
• Wise vs Payoneer vs Mercury — Multi-currency banking comparison for cross-border founders