How to File Taxes If You Have Both Foreign and Kazakhstani Income

Trying to make sense of tax obligations in a new country is already a headache, but when you're an expat juggling income from both your home country and your new life in Kazakhstan, it can feel like a labyrinth designed to confuse you. The rules around foreign income versus local earnings can be incredibly murky, leaving many of us stressed about accidental non-compliance. This comprehensive guide is here to untangle the complexities, walking you through exactly how to report and file your taxes in Kazakhstan when you have earnings from multiple sources, aiming to bring clarity to this often-frustrating process.

Establishing Your Tax Residency Status in Kazakhstan: The Foundation

Before you even think about what income goes where, you absolutely must understand your tax residency status in Kazakhstan. This isn't just a formality; it's the fundamental determinant of your entire tax liability. Misunderstanding this can lead to incorrect declarations, penalties, and a whole lot of unnecessary stress. It's often the first hurdle expats stumble over, and believe me, the Kazakhstani tax authorities take it seriously.

The All-Important 183-Day Rule

The cornerstone of establishing tax residency in Kazakhstan, much like in many other countries, revolves around your physical presence. The golden rule is the "183-day rule." If you spend 183 calendar days or more in Kazakhstan within any consecutive twelve-month period that ends in the current tax year, you are generally considered a tax resident. This isn't necessarily a calendar year, but a rolling 12-month period, which can sometimes catch people out. For instance, if you arrive in July 2025 and stay until July 2026, even if you weren't here for 183 days in either calendar year, you would still be a resident for tax purposes for a portion of both years.

It’s not just about counting days; the Kazakhstani tax code also considers other factors if the 183-day rule isn't clear-cut or if you have a significant presence elsewhere. These can include having a permanent home available in Kazakhstan, your centre of vital interests (where your family, social, and economic ties are strongest), or your habitual abode. However, for most expats, the 183-day rule is the primary test. If you're physically present here for more than half a year, expect to be treated as a tax resident. You can find a deeper dive into this topic in our article, Understanding Tax Residency Rules and the 183-Day Test in Kazakhstan.

When You're Considered a Non-Resident for Tax Purposes

If you don't meet the 183-day threshold and don't have other significant ties that would classify you as a resident, then congratulations, you're generally considered a non-resident for tax purposes. However, don't pop the champagne just yet – being a non-resident doesn't mean you're entirely off the hook. Non-residents are typically only taxed on their Kazakhstani-sourced income. This means any salary you earn from a local employer, income from property rentals in Kazakhstan, or profits from a business physically operating here. Your foreign income, such as a pension from your home country or investment gains from abroad, would generally not be subject to Kazakhstani tax as long as it's truly foreign-sourced and you remain a non-resident.

The distinction is critical because it dictates the scope of what you need to declare. For instance, a consultant flying in and out for short projects might be a non-resident, only needing to declare income directly attributable to their work performed in Kazakhstan. Meanwhile, someone who moved here with their family, rented an apartment, and works for a local company, even if they sometimes travel, is highly likely a resident and will have broader tax obligations. It's a key part of The Complete Guide to Taxes in Kazakhstan for Expats (2027).

Why Your IIN is Your Tax ID

Regardless of your residency status, if you're earning income in Kazakhstan or plan to engage in any significant financial activity, you'll need an Individual Identification Number (IIN). Think of your IIN as your personal tax identifier, much like a Social Security Number or National Insurance Number in other countries. It's not just for taxes; it's required for opening a bank account, signing rental agreements, registering a SIM card, and much more. Without an IIN, you won't be able to properly register with the State Revenue Committee (SRC) or file your tax returns, making it impossible to comply with your obligations.

The process of obtaining an IIN is one of the first bureaucratic hurdles you'll face, but it's essential to conquer it early. Your employer will likely need it to process your salary and social contributions, and if you're self-employed, it's non-negotiable for setting up your business and paying taxes. It's the numerical key that unlocks your ability to function financially and legally in Kazakhstan. Don't underestimate its importance; get it sorted as soon as you can. We have a detailed guide on How to Get an IIN (Individual Identification Number) in Kazakhstan to help you through the process.

Deciphering How Kazakhstan Taxes Foreign Income

Once you've established yourself as a tax resident, the game changes entirely. Kazakhstan operates on a "worldwide income" principle for its residents. This means that if you are a tax resident, you are generally subject to Kazakhstani income tax on all your income, regardless of where it was earned – whether it's from a job in Almaty, a rental property in London, or dividends from shares held in New York. This is where things get complicated for many expats, as they often assume their foreign income is only taxed in their home country.

The Flat 10% Individual Income Tax on Worldwide Income

Kazakhstan is famously attractive for its flat tax rate. For individuals, the Individual Income Tax (IIT) rate is a straightforward 10%. This flat rate applies to most types of income earned by residents, and crucially, this includes your worldwide income. So, if you're a tax resident and you're receiving a pension from the UK, or revenue from an online business registered elsewhere, or even capital gains from selling shares on a foreign stock exchange, that income is generally subject to the 10% IIT in Kazakhstan.

This can be a pleasant surprise for those coming from countries with higher progressive tax rates, but it's also a trap for those who fail to declare their foreign earnings, assuming they're beyond the reach of the Kazakhstani tax authorities. The simplicity of the 10% rate belies the complexity of ensuring all your income, both local and international, is correctly reported. You can explore this further in Understanding Income Tax and the Flat 10% Rate in Kazakhstan (2026).

What Qualifies as Foreign Income?

Defining "foreign income" is broader than many expats initially think. It encompasses almost any income stream that originates outside of Kazakhstan's borders. Here are some common examples:

• Salaries from foreign employers: If you're working remotely for a company based in your home country, or receiving payments from a previous employer abroad.
• Rental income from overseas properties: Any rent you collect from property you own outside of Kazakhstan.
• Investment income: Dividends from foreign stocks, interest from foreign bank accounts, or capital gains from the sale of foreign assets (e.g., shares, property).
• Pensions: Retirement pensions received from a foreign government or private scheme.
• Freelance or consulting income: If your clients are based outside Kazakhstan and the work is technically performed for them abroad.

The key is the source of the income. If it's not generated by activity or assets within Kazakhstan, it's generally considered foreign income. However, as a resident, it falls under the purview of the Kazakhstani tax system. This global view of income is what makes managing your tax affairs here so different from many other places. It's about full disclosure, not just reporting what you earn locally. For more detailed information, consult Understanding the Tax Treatment of Foreign Income in Kazakhstan.

Reporting Foreign Income: What You Need to Declare

The Kazakhstani tax system expects residents to declare all their worldwide income annually. This typically happens through an annual income declaration submitted to the State Revenue Committee (SRC). If you're an employee with a local Kazakhstani employer, they will handle your local IIT deductions at source. However, any foreign income you receive usually won't have Kazakhstani tax deducted, meaning you're responsible for declaring it and paying the 10% IIT yourself.

It's crucial to gather all necessary documentation for your foreign income: bank statements showing transfers, dividend slips, rental agreements, and any tax statements from the country of origin. You'll need to convert any foreign currency income into Kazakhstani Tenge (KZT) using the official exchange rate published by the National Bank of Kazakhstan for the date the income was received. Accuracy is paramount here; deliberately under-reporting or failing to report foreign income can lead to significant penalties, including fines and interest on unpaid taxes. It’s a common area where expat mistakes happen, often due to unfamiliarity with the "worldwide income" principle.

The Lifeline of Double Taxation Agreements (DTAs)

This is where many expats breathe a sigh of relief, albeit a cautious one. Because Kazakhstan taxes residents on their worldwide income, there's a very real risk of your foreign income being taxed twice: once in the country where it was earned and again in Kazakhstan. This is precisely why Double Taxation Agreements (DTAs) exist, and Kazakhstan has signed many of them with countries around the globe.

Preventing Double Jeopardy: How DTAs Work

A DTA is an international tax treaty between two countries designed to prevent individuals and businesses from being taxed twice on the same income. These agreements typically override domestic tax laws to a certain extent. When a DTA is in place between Kazakhstan and your home country, it provides rules for determining which country has the primary right to tax specific types of income, or how tax paid in one country can be credited against tax due in the other.

For instance, a DTA might state that salary income is taxable only in the country where the work is performed, or that passive income like dividends or interest is taxable in both countries but with a lower withholding tax rate in the source country, and a tax credit available in the residence country. The goal is to ensure you don't end up paying more than the highest single tax rate between the two countries. Without DTAs, international living would be financially prohibitive for many. This is a complex area, but a detailed understanding can be found in Understanding Double Taxation Agreements and Foreign Income in Kazakhstan.

Claiming DTA Benefits and Obtaining a Tax Residency Certificate

To claim the benefits of a DTA, you typically need to prove your tax residency status. This is usually done by obtaining a Tax Residency Certificate from the State Revenue Committee of Kazakhstan. This document officially states that you are a tax resident of Kazakhstan for a specific period. You would then present this certificate to the tax authorities in your home country (the source country of your foreign income) to either claim an exemption from tax, a reduced tax rate, or a foreign tax credit.

The process for obtaining this certificate involves submitting an application to the SRC, usually through the Taxpayer Cabinet portal. You'll need to provide details of your income, your stay in Kazakhstan, and evidence that you meet the residency criteria. It's a formal process, and the SRC needs to verify your status before issuing the certificate. Many expats use services like Taxes for Expats to help navigate these intricacies, especially when dealing with the tax authorities of multiple countries. They understand the nuances of DTAs and can assist in preparing the necessary documentation to correctly claim benefits, ensuring you're not overpaying.

Real-World Scenarios for DTA Application

Let's look at a couple of hypothetical examples to illustrate how DTAs might apply:

Scenario 1: Remote Work Salary from the UK
Sarah is a tax resident of Kazakhstan, working remotely for a company in the UK. She receives her salary in a UK bank account. Without a DTA, both the UK (as the source of income) and Kazakhstan (as her country of residence) might want to tax her. However, the DTA between Kazakhstan and the UK (if one exists for income tax purposes, which it does) would typically stipulate that salary income is primarily taxable where the individual is a resident, if that's also where the work is performed. So, Sarah would report her full UK salary in Kazakhstan and pay the 10% IIT. She would then apply for an exemption or similar relief in the UK, using her Kazakhstani Tax Residency Certificate, to ensure the UK doesn't also tax that income.

Scenario 2: Rental Income from a Property in Germany
David is a tax resident in Kazakhstan but owns a rental property in Germany. The rental income is taxed in Germany. When he declares this income in Kazakhstan, the DTA between Kazakhstan and Germany would likely allow him to claim a tax credit for the taxes already paid in Germany against his Kazakhstani IIT liability. So, if he paid 15% tax in Germany on the rental income, and Kazakhstan's rate is 10%, he might not owe any additional tax in Kazakhstan on that specific income, or he might receive a credit up to the 10% Kazakhstani rate. The goal is to avoid double taxation on the same earnings. Understanding these specific scenarios is key to managing your tax burden effectively.

A Step-by-Step Walkthrough to Filing Your Mixed Income Tax Return

Filing your tax return in Kazakhstan, especially with mixed income, can feel intimidating at first. However, breaking it down into manageable steps makes the process less daunting. Remember, the key is preparation and understanding the online portals. Filing Your Tax Return with the State Revenue Committee in Kazakhstan: The Complete Walkthrough (2027) offers a broader overview, but here we focus on the specifics of mixed income.

Gathering Your Documents: The Paperwork Mountain

Before you even log into any government portal, you need to consolidate all your financial paperwork. This is often the most time-consuming part, but it's essential for accuracy.

Here's a checklist of documents you'll likely need:

Document Type	Description	Source
Kazakhstani Income
Salary Statement (Form 200.00)	Provided by your employer, detailing annual salary, IIT withheld, and social contributions.	Kazakhstani Employer
IIN (Individual Identification Number)	Your personal tax identification number.	Migration Service or Public Service Centre (PSC)
Foreign Income
Foreign Salary/Earnings Statements	Payslips, employment contracts, or income statements from foreign employers.	Foreign Employer(s)
Foreign Bank Statements	Records of interest earned on foreign bank accounts.	Foreign Bank(s)
Dividend/Investment Statements	Proof of dividends received, capital gains/losses from foreign investments.	Foreign Brokerage/Investment Firms
Rental Income Statements	Lease agreements, income/expense reports for foreign rental properties.	Property Manager or Personal Records
Foreign Tax Payment Proof	Official tax payment receipts or certificates from foreign tax authorities (for DTA credit claims).	Foreign Tax Authority
General Documents
Passport & Visa/Residence Permit	Proof of identity and legal status in Kazakhstan.	Your Personal Documents
Kazakhstani Tax Residency Certificate	If you've obtained one to claim DTA benefits in other countries.	State Revenue Committee (SRC)
Exchange Rates	Official National Bank of Kazakhstan rates for converting foreign currency income to KZT on receipt dates.	National Bank of Kazakhstan website

Make sure everything is organized, and if any documents are in a foreign language, consider getting certified translations if required, though for filing purposes, often the original document with correct numerical reporting is sufficient.

Navigating the Taxpayer Cabinet and eGov Portals

Kazakhstan has largely digitalized its public services, and tax filing is no exception. You'll primarily interact with two main portals: the eGov portal (e.gov.kz) and the Taxpayer Cabinet (cabinet.salyk.kz). The eGov portal is your gateway to various government services, including some tax-related ones. However, for detailed tax declarations and managing your tax account, the Taxpayer Cabinet is where the real action happens.

To access these portals, you'll need an Electronic Digital Signature (EDS), which is essentially a secure digital key. This EDS is mandatory for almost all interactions with Kazakhstani government online services. Once you have your IIN, getting an EDS is usually the next step. You can often apply for it at a Public Service Centre (PSC) or online through eGov.

Once you log into the Taxpayer Cabinet using your EDS, you'll find various forms and services. For individual income tax, you'll generally be looking for Form 240.00 (Declaration of Individual Income), which is the primary form for declaring income not covered by your employer's withholding, including all your foreign income. Understanding the eGov and Taxpayer Cabinet Portals in Kazakhstan provides more detailed guidance on these essential platforms.

Submitting Your Declaration and Making Payments

Filling out Form 240.00 within the Taxpayer Cabinet can be intricate. You'll need to input your Kazakhstani-sourced income (even if it's already taxed at source, for comprehensive reporting), and then meticulously detail all your foreign income, converting it to KZT. If you're claiming DTA benefits, you'll need to indicate that and provide relevant supporting documentation or reference the applicable DTA provisions.

Once you've filled out the form, the system will calculate your total IIT liability. Double-check everything before submitting. The deadline for annual individual income tax declarations for the previous year is typically March 31st of the current year. For example, income earned in 2025 must be declared by March 31st, 2026.

After successful submission, if you owe additional tax (especially on your foreign income), you'll need to make the payment. This can usually be done online through your bank's portal, Kaspi.kz, or through payment terminals, referencing your IIN and the specific tax payment code. Keep records of all your submissions and payment confirmations. This might sound like a lot, but taking it one step at a time, and knowing the deadlines, will make it manageable. Many services, including financial consultants, specialize in helping expats through this process, which can be invaluable for ensuring compliance.

Common Pitfalls and Essential Tips for Expats with Dual Income

Even with all the information, it's easy to make mistakes. Many newcomers stumble over the same hurdles. Understanding these common pitfalls and adopting proactive strategies can save you a world of trouble down the line.

Keeping Meticulous Records

This cannot be stressed enough: documentation is your best friend. The Kazakhstani tax authorities, like any other, have the right to audit your declarations. If you're ever questioned about your income, especially foreign income, having clear, organized records will be your strongest defense. This means keeping:

• All bank statements: Local and international, showing income deposits and significant transfers.
• Employment contracts and amendments: Both Kazakhstani and foreign.
• Payslips or income statements: From all sources.
• Investment statements: Confirming dividends, interest, or capital gains/losses.
• Rental agreements and expense receipts: For any rental properties, local or foreign.
• Proof of tax paid in other countries: Essential for DTA claims.
• Records of exchange rates used: For converting foreign income to KZT.
• All submitted tax declarations and payment receipts.

Don't rely on memory or informal notes. Create digital folders, scan everything, and keep physical copies of important documents. This isn't just for tax season; it's a year-round habit that will bring you peace of mind.

Seeking Professional Advice When in Doubt

Tax laws, especially those involving international income and DTAs, are incredibly complex and subject to change. While guides like this provide a solid foundation, they are not a substitute for personalized professional advice. If your financial situation is complicated – perhaps you have multiple foreign income streams, significant investments abroad, or are unsure about your exact residency status – investing in a qualified tax consultant in Kazakhstan is highly recommended.

These professionals, often specializing in expat taxation, can offer tailored advice, help you interpret DTAs correctly, and even assist with preparing and filing your declarations. They can also represent you in discussions with the State Revenue Committee if any issues arise. While there's a cost involved, it's often a small price to pay to ensure compliance, avoid penalties, and optimize your tax position. Firms that specialize in international tax for expats can be invaluable, sometimes even being partners with global networks like "Taxes for Expats".

Proactive Planning for Financial Peace of Mind

Don't wait until March 30th to think about your taxes! Proactive financial planning throughout the year can make a huge difference.

• Understand your income sources: Keep a running tally of all your income, local and foreign.
• Set aside funds for foreign income tax: If you know you're receiving foreign income that won't have Kazakhstani tax withheld, make sure you're regularly saving 10% (or more, if you expect other taxes) to cover your IIT liability.
• Regularly review DTA specifics: The details of DTAs can be nuanced. Understand how they apply to your specific types of income.
• Consider how you transfer money: For larger sums, using services like Wise (formerly TransferWise) can make transferring foreign currency to KZT straightforward and cost-effective, but always ensure you're documenting the source of funds for tax purposes. While Wise helps with transfers, it's not a tax service, so always ensure you're accounting for your income correctly.
• Stay informed: Tax laws can change. Keep an eye on updates from the State Revenue Committee or reputable expat financial news sources.
• Consider your long-term residency: If you're close to the 183-day threshold, understand the implications of becoming a resident versus a non-resident for your overall tax picture.

By being organized, seeking expert help when needed, and planning ahead, you can navigate the Kazakhstani tax system with mixed income much more smoothly. It’s a journey, not a sprint, and preparation is your best tool.

Disclaimer

This article is for general informational purposes only and does not constitute professional advice. Laws, prices and regulations vary by location and change over time. Consult a qualified professional for guidance on your specific situation.