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

Turkish founders with US LLCs are dealing with two tax systems, two currencies, and a Lira that has lost roughly 80% of its value against the dollar since 2020. The good news: the Turkey-US tax treaty, signed in 1996, is one of the cleaner bilateral agreements for avoiding double taxation. The bad news: the GIB (Gelir İdaresi Başkanlığı) taxes residents on worldwide income, so every dollar flowing through that LLC lands on your annual Turkish return.

I have spent two decades structuring cross-border operations between the US and emerging markets. Turkey is one of the corridors where the macro environment — currency instability and high domestic inflation — shapes structural decisions as much as the legal framework does. The founders who get this right 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 comes down to domicile and physical presence. You are a Turkish tax resident if you:

• 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)

This is not the 183-day test that many OECD countries use. Turkey measures continuous presence, not aggregate days. Live in Istanbul from January through June and move to the US in July? You are a Turkish resident for that entire tax year. Six months of continuous presence triggers full-year worldwide taxation.

Progressive Tax Rates (2026)

Turkey applies progressive rates to total annual income. The GIB sets brackets annually, typically announcing them in December for the following year. The 2026 brackets:

These brackets are in TRY. A Turkish founder earning $100,000 USD through a US LLC? At March 2026 rates (~36 TRY/USD), that converts to roughly 3,600,000 TRY, putting the top slice in the 40% bracket. The insidious part: currency depreciation pushes USD earners into higher brackets even when their real dollar income stays 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. Same classification as a Turkish sole proprietorship.

The GIB does not care about the US "disregarded entity" concept. A US single-member LLC is a separate legal entity under US state law, but because it is fiscally transparent for US purposes (the IRS does not tax the entity itself), the income flows through to the individual owner. Turkey then taxes that individual on their worldwide income regardless of how the US classifies the entity.

In practice: you report the LLC's net income as commercial income on your annual return, converted to TRY at either the exchange rate on the date earned or the average annual rate. The GIB accepts both methods, but you must be consistent year over year.

Annual Income Tax Return (Mart Beyannamesi)

Turkish residents with foreign income file an annual return by March 25 (the "Mart Beyannamesi"). For 2025 income, that means March 25, 2026.

What the filing requires:

• All worldwide income reported, including US LLC income, even if no US tax was paid
• Foreign income converted to TRY using the TCMB exchange rate
• Quarterly provisional tax (geçici vergi) due the 14th of the second month after each quarter (May 14, August 14, November 14, February 14)
• Foreign tax credits claimed under Article 123 of the Income Tax Law, if applicable

Most Turkish founders with US LLCs have no US tax liability (no US-source income, no US PE), which means no US taxes to credit. The full Turkish rate applies.

The Turkey-US Tax Treaty

The Turkey-US income tax treaty was signed March 28, 1996, entered into force December 19, 1997, and has not been amended since. Three articles matter most for Turkish founders with US LLCs.

Article 7: Business Profits

Business profits are taxable only in the state where the enterprise resides, unless it operates through a permanent establishment (PE) in the other state. If a PE exists, the other state can tax only the profits attributable to that PE.

For a Turkish founder running a US LLC entirely from Turkey — clients served remotely from Istanbul, no US office, no US employees, no fixed place of business — Article 7 means the US has no right to tax the LLC's profits. Turkey gets exclusive taxing rights.

That is the best possible outcome for a cross-border LLC structure. One country taxes the income. The other does not. No double taxation to eliminate because the US never taxes it in the first place.

Article 5: Permanent Establishment

A PE is a fixed place of business through which the business is wholly or partly carried on: an office, branch, factory, workshop, or extraction site.

This matters because PE status determines whether Article 7 protects you. If your US LLC has a PE in the US, Article 7 breaks and the US can tax profits attributable to that 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 covers professional services and independent activities. You are only taxable in the other country if you have a "fixed base" regularly available there, or if you spend 183+ days there in any twelve-month period.

For Turkish freelancers and consultants with US LLCs: if all work is performed from Turkey, Article 14 adds another layer of protection against US taxation. 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, capped at the Turkish tax attributable to that same income.

Example: your US LLC has a PE in the US, and the US taxes $50,000 of attributable profits. You claim a credit against your Turkish tax liability for the US tax paid. The credit cannot exceed what Turkey would have charged on the same income.

In the more common scenario — no US PE, no US tax — Article 23 never comes into play. Turkey taxes the full income.

Why This Treaty Is Relatively Favorable

Compared to other bilateral agreements I have seen founders struggle with, this treaty has real advantages:

• No hybrid entity mismatch: Canada's CRA treats US LLCs as foreign corporations, creating a classification gap that has wrecked many Canadian founders' tax planning. Turkey avoids this entirely by taxing the individual on worldwide income regardless of entity classification. No need to "look through" the LLC.
• Clean PE threshold: The PE definition is conventional and well-understood. Operate purely from Turkey and PE risk is minimal.
• Simple credit method: When US tax is paid (PE situations), the Article 23 credit mechanism is straightforward. None of the "underlying tax" calculations that make some treaties a nightmare to apply.

The treaty does not address currency conversion rules. That is entirely Turkey's domestic law.

US Banking for Turkish Nationals

Turkey is not a restricted jurisdiction for US banking. Turkish passport holders can open US business bank accounts without a US visa, without an SSN, and without setting foot in the country.

Mercury

Mercury is the most popular banking option among non-resident LLC owners, and onboarding is entirely remote.

For Turkish founders:

• Turkish passport accepted as primary ID
• No SSN required — ITIN or EIN is sufficient
• No US visit needed
• FDIC insured up to $5M through partner banks (Evolve Bank & Trust, Choice Financial Group)
• USD-only accounts, no TRY or native currency conversion
• ACH, domestic wires, and international wires available

Mercury is a fintech company, not a bank. Banking services are provided by Choice Financial Group and Evolve Bank & Trust, Members FDIC.

Docs you will need: Articles of Organization, EIN confirmation letter, operating agreement, Turkish passport, proof of address (Turkish address accepted).

Wise Business

Wise Business offers multi-currency accounts with both USD and TRY account details, which is the reason Turkish founders gravitate toward it.

For Turkish founders:

• Turkish passport accepted for identity verification
• Local USD account details (ACH routing + account number) for receiving US domestic payments
• TRY account details for receiving Turkish domestic payments
• Mid-market exchange rate with transparent fees (typically 0.4-0.6% for USD to 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. No lending products, no check deposits, and some payment processors or government agencies will not accept it as a "US bank account." For most Turkish founders, Wise works best as a conversion layer — receive USD, convert what you need to TRY — while Mercury handles primary US banking.

Relay

Relay is another US fintech option that accepts non-resident LLC owners. The sub-account feature is useful for separating tax reserves from operating expenses, and it integrates with QuickBooks and Xero.

For Turkish founders:

• 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
• Remote onboarding available

Banking Setup Pattern for Turkish Founders

The setup I see most often among Turkish founders:

1. Mercury — Primary US business account. Client invoices, payment processor deposits, US vendor payments.
2. Wise Business — Conversion layer. USD to TRY at mid-market rates, TRY account for Turkish expenses.
3. Turkish domestic bank (Is Bankasi, Garanti BBVA, Yapi Kredi) — TRY operating account for local expenses, tax payments, personal spending.

This three-account structure keeps USD revenue in dollars as long as possible, converts only what Turkish expenses require, and separates US business funds from Turkish personal funds.

European Banking as Intermediary

Some Turkish founders route funds through European banks before converting to TRY. I see the appeal — currency diversification, EUR-denominated services — but the added complexity is only worth it in specific situations.

Why European Banks

• N26 and Revolut both accept Turkish nationals for personal and business accounts
• EUR provides an alternative store of value (more stable than TRY, though it has depreciated against USD in recent years)
• Founders with EU clients who pay in EUR avoid the double conversion of EUR to USD to TRY
• Turkey's geographic and economic ties to Europe make EUR liquidity practically useful

The Added Complexity

Every additional jurisdiction in the chain adds reporting obligations:

• CRS: European banks automatically report account balances and income to Turkey. The GIB sees what you hold in CRS-participating jurisdictions.
• Foreign asset reporting: More accounts in more jurisdictions means a larger reporting surface on your Turkish return.
• Double conversion costs: USD to EUR to TRY instead of a single USD to TRY conversion adds friction and cost.

Bottom line: the European intermediary path makes sense when you have real EUR revenue streams. Using N26 or Revolut as a pass-through for USD to TRY conversion adds complexity for no clear benefit.

MASAK Compliance

MASAK (Mali Suclari Arastirma Kurulu) is Turkey's financial intelligence unit, equivalent to FinCEN in the US. It enforces AML and counter-terrorism financing regulations under the Ministry of Treasury and Finance.

What Turkish LLC Owners Need to Know

Foreign asset disclosure: Turkish residents must report foreign financial assets — including US bank accounts and foreign entity income — as part of their annual filing. The GIB and MASAK share information. Underreporting foreign income that is visible through data exchange will trigger scrutiny.

Transaction monitoring thresholds:

• Cash transactions over 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
• Large or unusual inflows from foreign sources to Turkish bank accounts may trigger a MASAK inquiry

CRS and FATCA data exchange: Turkey participates in the OECD's Common Reporting Standard. The US reports under FATCA rather than CRS, but the effect is the same: Turkish tax authorities automatically receive account information about Turkish residents at US financial institutions. If you hold $200,000 in a Mercury account, the GIB knows about it.

What this means in practice:

• Having a US LLC and US bank account as a Turkish resident is legal. The requirement is accurate reporting, not avoidance of foreign accounts.
• The risk is when your foreign account balances do not match what you declared on your Turkish return.

Currency Management: The Lira Factor

The Lira has been one of the worst-performing major currencies of the past decade. From roughly 7 TRY/USD in January 2020 to approximately 36 TRY/USD in March 2026 — an 80% drop. Inflation exceeded 80% in 2022 and has stayed between 40-65% through 2024-2025.

This creates a structural dynamic for Turkish LLC owners that I do not see in most other cross-border corridors.

The Mechanics

Earning in USD: Revenue from international clients holds its purchasing power regardless of what happens to the Lira.

Holding in USD: Keeping funds in Mercury or Relay means no Lira exposure. Earn $10,000 in January, hold it in Mercury until June, and you still have $10,000. Convert that same amount to TRY in January and it will have lost value against the dollar by June.

Converting the minimum to TRY: Rent, utilities, local staff, food, tax payments — all denominated in TRY. Convert only what you need, when you need it.

The tax bracket trap: Turkish brackets are in TRY, but the Lira keeps falling against USD. A founder earning $100,000/year pays more Turkish tax in real dollar terms each year even with flat dollar income, because the TRY equivalent grows as the Lira weakens. No treaty provision addresses this. It is a structural cost of earning in a hard currency while living in a depreciating one.

What This Means in Practice

Say a Turkish founder earns $8,000/month through a US LLC with $3,000/month in Turkish living expenses:

• $8,000 deposited monthly into Mercury
• ~108,000 TRY ($3,000 at 36 TRY/USD) converted monthly through Wise for Turkish expenses
• $5,000 stays in USD, untouched by Lira depreciation
• Quarterly provisional tax paid in TRY from the Turkish bank account
• Annual tax settled in March on the full $96,000, converted to TRY

The real wealth is in dollars. Turkish tax is a TRY-denominated cost paid from USD earnings. The longer you hold USD before converting, the more purchasing power you preserve. Tax obligations set the floor on how much you must convert and when.

Comparison: Turkish Anonim Sirket (A.S.) vs US LLC

Turkish founders face a structural choice between a domestic company and a US LLC. The right answer depends on where your clients are, what currency they pay in, and where you are headed.

Turkish Anonim Sirket (A.S.)

An A.S. is a Turkish joint stock company, the closest equivalent to a US corporation. If you need institutional credibility, share issuance, or access to government contracts, this is the default structure.

Key characteristics:

• Minimum share capital: TRY 250,000 (raised from TRY 50,000 in January 2024)
• Corporate tax: 25% (2024-2026)
• Dividend withholding: 10%
• Full commercial code governance (board of directors, annual meetings, independent auditor above size thresholds)
• Revenue in TRY by default, though foreign currency invoicing is allowed for international transactions

US LLC (Single-Member, Disregarded)

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

Key characteristics:

• No minimum capital
• 0% US federal income tax (flows through to a non-US individual)
• No state income tax (Wyoming) or just a $300/year franchise tax (Delaware)
• Revenue in USD
• Full US banking and payment infrastructure

Comparison Table

When Each Structure Fits

The A.S. fits when:

• Clients are Turkish companies or government entities
• You need Turkish commercial credibility for tenders, partnerships, or licenses
• You plan to hire Turkish employees at scale
• Revenue is primarily in TRY

The US LLC fits when:

• Clients are international (US, EU, global)
• Revenue is in USD or other hard currencies
• You want to minimize Lira exposure
• You need US banking and payment infrastructure
• The business is location-independent (consulting, SaaS, freelancing)

Running both simultaneously is also common. An A.S. for Turkish domestic business, a US LLC for international revenue. Parallel tax reporting, but clean separation of currency exposure and client relationships.

For the full formation process, see the US LLC formation guide for Turkish residents.

FAQ

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

Yes. The treaty applies to "residents" of either country, and a Turkish tax resident qualifies. Because the US treats the single-member LLC as a disregarded entity, income is attributed to the individual owner for treaty purposes. Article 7 protects business profits from US taxation when no US PE exists. Turkey taxes the individual on worldwide income, and the treaty prevents the US from double-taxing it.

How do I pay Turkish taxes on US LLC income?

Report the LLC's net income as ticari kazanc (commercial income) on your annual return through the GIB's interactive tax office portal. Convert USD to TRY using the TCMB rate. Pay quarterly provisional tax (gecici vergi beyannamesi) and settle the balance with the annual March filing. Most Turkish founders with US LLC income engage an SMMM (certified public accountant) because foreign income reporting is more complex than 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 exchanges it with treaty partners. Turkey receives data on account balances, interest income, and gross proceeds automatically. No subpoena needed. If your Mercury balance does not match what you declared on your Turkish return, that discrepancy will surface.

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

Yes. No Turkish law requires converting foreign currency earnings to TRY within any timeframe. The TCMB and MASAK do not mandate repatriation. The GIB cares about accurate reporting and tax payment, not where the money sits. Your TRY tax liability is the same whether the dollars are in Mercury or converted the day they arrive.

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

With no US-source income and no US PE, the filing obligations are: (1) Form 5472 — annual information return on transactions between the LLC and its foreign owner, filed with a pro forma Form 1120, (2) EIN maintenance, (3) State filings — annual report or franchise tax (Wyoming $60, Delaware $300), (4) Registered agent maintained continuously. The big one is Form 5472. [Missing it carries a $25,000 penalty per form per year](/blog/what-happens-if-you-miss-form-5472-non-resident-llc).

Key Takeaways

• The GIB taxes Turkish residents on worldwide income at up to 40%. US LLC income is classified as ticari kazanc and reported on the annual Mart beyannamesi.
• Article 7 of the Turkey-US treaty lets Turkish residents avoid US taxation on business profits when no US PE exists. One of the cleaner bilateral arrangements for LLC owners.
• Turkey is not a restricted jurisdiction for US banking. Mercury, Wise Business, and Relay all accept Turkish nationals remotely.
• The Lira has lost ~80% against USD since 2020. Holding USD and converting only what Turkish expenses require preserves purchasing power.
• MASAK and FATCA data exchange give Turkish authorities automatic visibility into US accounts. The requirement is accurate reporting.
• Three-account structure (Mercury for USD, Wise for conversion, Turkish bank for TRY expenses) is the most common setup.
• A.S. vs US LLC depends on client location, revenue currency, and Lira exposure. Running both simultaneously works too.

References

• GIB Income Tax Guide — Turkish Revenue Administration tax law and regulations
• Turkey-US Income Tax Treaty — Full text of the 1996 Convention
• MASAK — Turkey's Financial Crimes Investigation Board
• TCMB Exchange Rates — Central Bank official rates
• Income Tax Law No. 193 — Full text of Turkey's income tax law
• OECD CRS by Jurisdiction — Turkey's CRS commitments
• IRS Form 5472 — Filing requirements for foreign-owned US disregarded entities
• Mercury vs Wise vs Relay — US banking comparison for non-resident LLC owners
• Tax Residency Determination Guide — How residency rules interact across jurisdictions
• Wise vs Payoneer vs Mercury — Multi-currency banking comparison