How to submit a declaration of 3-NDFL through public services: full instruction

The refund of a portion of the tax paid is a legal right of every working citizen, which often goes unrealized for fear of bureaucracy. Many still believe that to make a tax deduction, you need to personally visit the inspectorate, stand in lines and fill out paper forms by hand. However, the digitalization of public services has radically changed this process, making it accessible, fast and understandable even for those who are far from accounting.

Filing a 3-NDFL declaration through the Public Services portal is the most modern and convenient way of interaction with the tax service, which saves your time and nerves. You do not need to make an appointment in advance or look for current forms, since the system itself will form the necessary documents based on the data you entered. In this article, we will analyze in detail the entire algorithm of actions, the necessary documents and subtleties that will help you to get money from the state.

The main advantage of online submission is the ability to track the status of the check in real time, which eliminates the loss of documents or delays due to the human factor. Tax deduction This is an amount that reduces the tax base or is returned to your account if you spent money on treatment, training, buying a home or charity. It is important to understand that the procedure is completely free and does not require intermediaries, if you are ready to fill out the electronic form yourself.

Who is entitled to a refund and what types of deductions are available

The right to receive a property, social or investment deduction are residents of the Russian Federation who are officially employed and pay personal income tax (NDF) at a rate of 13%. If you work in black or are an individual entrepreneur on a simplified system of taxation without paying personal income tax, then, unfortunately, you will not be able to return some of the costs, since there is simply nothing to return.

There are several main categories of expenses for which the state is ready to compensate for part of the costs. The most popular is a property deduction when buying a home, which allows you to return up to 260 thousand rubles (and even more with a mortgage). Social deductions apply to treatment, education (either one’s own or children’s), sports and voluntary pension insurance.

It is also worth mentioning deduction, which encourage citizens to use individual investment accounts (IIS), and standard deductions, which are due to certain categories of citizens, for example, parents of minor children or participants in the liquidation of the Chernobyl accident. Each type of deduction has its own limits and requirements for supporting documents.

⚠️ Note: Since 2026, the legislation has been amended to confirm certain types of social deductions. Now, many certificates and checks are requested by the tax service itself electronically, but the presence of paper copies on your hands may still be required for rechecking the data.

If your annual income was 500 thousand rubles, and you spent on treatment 1 million, the deduction will be calculated only from the amount of 500 thousand (or from the established limit of expenses, if it is less).

Preparation for filling in: necessary documents and certificates

Before proceeding to fill in the electronic declaration, it is necessary to collect a package of documents in digital format. You will need scans or high-quality photos of passports, birth certificates of children, real estate documents or contracts with medical institutions. All files should be readable, without glare and cropped edges, preferably in PDF or JPG format.

The key document for a working citizen is a certificate of income and amounts of tax of an individual (Form 2-NDFL). It can be obtained from the employer in the accounting department or downloaded independently in the personal account of the taxpayer, if the employer has already transferred the data to the Federal Tax Service. Without this certificate, it will be impossible to fill in the income section correctly.

For property deduction, a purchase and sale agreement, an act of acceptance and transfer of an apartment, an extract from the USRN and payment documents (receipts, payment orders) confirming the fact of payment will be needed. If borrowed funds, then a loan agreement and a certificate from the bank on the interest paid are required.

• 📄 Passport of a citizen of the Russian Federation (main reversal and residence permit).
• 📄 2-NDFL for the reporting year (can be obtained online).
• 📄 Contracts and checks confirming expenses (treatment, training, housing).
• 📄 Certificate of the balance of the property tax deduction (if you do not submit for the first time).

Pay special attention to the details of the bank account to which you plan to receive money. Requisites It should be relevant and the account must be opened in your name. It is best to order a certificate of details in advance in the banking application to prevent errors in the numbers when manually entering.

Step-by-step instructions: how to submit a declaration through public services

The process of filing a declaration of 3-NDFL through the portal of public services is as automated as possible, but requires care when entering data. First, you need to log in to the portal using a confirmed account. If you do not have a confirmed account, this should be done in advance through banking or service centers, since without this step, entering the personal account of the tax office is impossible.

After authorization in the search bar, enter the “Tax deduction” query or go to the “Services” section → “Taxes and Finance”. The system will offer you two options: a simplified procedure (if it is available for your case) or a standard filling out of the declaration. Simplified procedure is available for property and some social deductions, when data on expenses are already in the database of the Federal Tax Service.

If you choose the standard path, the system will redirect you to the 3-NDFL filling interface. Here you will need to consistently fill out sections: personal data (pull up automatically), income (downloaded from the help 2-NDFL) and deductions. In the deductions section, you specify the types of expenses and upload scanned copies of supporting documents.

⚠️ Note: When downloading documents, make sure that the size of each file does not exceed the set limits (usually up to 2 MB), otherwise the system may not accept the declaration. If the files are too large, use online services to compress images before downloading.

At the final stage, the system will form a final document for familiarization. Check all amounts carefully, especially the income code and the amount of tax refundable. After confirmation, the declaration will be signed by your electronic signature (which is generated automatically when you enter a password from your personal account) and sent to the tax office.

Simplified order of deduction: how it works

Since 2021, Russia has a simplified procedure for obtaining tax deductions, which significantly reduces the time and list of necessary actions. The essence of the mechanism is that the tax authorities independently request information from employers, banks and other organizations involved in the process. You do not need to collect certificates and checks if the counterparty is connected to the electronic document management system with the Federal Tax Service.

The simplified procedure primarily concerns property deductions (purchase of an apartment, house, land) and investment deductions. Social deductions (treatment, training) are also gradually moving into this mode, but it is important that a medical institution or a university transfer data to the tax office. The status of the organization’s connection to the system can be checked on the website of the Federal Tax Service or clarified directly with the service provider.

To start the procedure in a simplified manner, it is enough to apply through the personal account of the taxpayer. The system itself will form a pre-filled declaration based on the data received from third parties. You will only need to check the numbers and confirm the shipment. The term of the desk check in this case is reduced from three months to one month, and the money will be received into the account even faster.

However, it is worth considering that not all organizations have switched to direct data exchange with the tax office. If your counterparties are not on the list available for a simplified procedure, you will have to return to the standard procedure with the download of scans of documents. Electronic document management The development of the two agencies is rapidly developing, and in the coming years, paper certificates will probably be completely forgotten.

What to do if there is a lack of data in a simplified manner?

If you see that the amount in the pre-filled declaration is less than the actual one, or there are no periods, you will have to switch to standard filling. In this case, the system will allow you to manually add missing data and download scans of documents that were not automatically received.

Time of verification of the declaration and receipt of money

One of the most important questions for applicants is when to wait for the money. The legislation establishes a clear time frame for desk inspection. The standard period for consideration of the declaration is three months from the day following the day of its registration. During this period, the tax inspector checks the correctness of the calculations and the compliance of the documents with the legislation.

After the successful completion of the check, the actual refund stage begins. The Treasury has one month to transfer funds. Thus, the maximum period from the date of filing the declaration to the receipt of money to the account is four months. When using the simplified procedure, the total period is reduced to two months (one for verification and one for payment).

The status of the check can be checked in the personal account of the taxpayer. You will see the stages: “Registered”, “Inspection is underway”, “Verification is completed”, “Return decision is made”. If errors or lack of documents are found during the check, you will receive a notification requesting clarification or additional files.

Type of procedure	Time of desk inspection	Term of payment	Total time limit
Standard procedure	3 months	1 month	4 months
Simplified procedure	1 month	1 month	2 months
In case of violation of the terms of the FNS	-	Interest is charged	Depends on the delay.

It is important to note that if the tax office violates the payment terms, interest is charged on the amount of the debt for each day of delay. These interest rates are calculated based on the key rate of the Central Bank of the Russian Federation and are paid automatically along with the principal amount of the return, although in practice this is not always without a reminder.

Frequent Filling Mistakes and How to Avoid Them

Despite automation, human error remains the main cause of delays and failures. One of the most common mistakes is the wrong income code or the wrong deduction code. In the help 2-NDFL and in the declaration, the codes must coincide completely. An error in even one digit can result in the system not “singling” the data and requiring manual adjustments.

Another common problem is incorrect account details. An error in the bank’s BIC or account number will result in the Treasury being unable to make the payment and the money will be returned back to the tax office. After that, the resumption of payment process may take additional time. Always double-check the details copied from the banking application, symbolically.

Users often forget to attach all pages of multipage documents or download files of poor quality. The inspector must see all seals, signatures and stamps. If the document is bilateral, both sides must be scanned. Unreadable files are equated to non-provision of documents.

• ❌ Error in the code of OCTMO (territorial code) – often changes when changing jobs.
• ❌ Incorrectly specified amount of expenses (for example, confused rubles and pennies).
• ❌ No signature on the tax refund application (electronically signed by a code from SMS).
• ❌ Attempt to claim a deduction for years when the right to it has already been fully exercised.

To avoid problems, use the function “Save draft” in your personal account. This will allow you to return to the filling later, calmly double-check the data and only then send the document to the inspection. draft It is your safety cable that gives you time to correct typos without the risk of sending erroneous reporting.

Can I submit a 3-NDFL declaration through the mobile application of the State Services?

At the moment, full filling and filing of a complex declaration of 3-NDFL with the attachment of scans of documents through the mobile application "State Services" is impossible or very limited. The app allows you to track status, receive notifications and submit simple applications. For full-fledged work with tax reporting, it is recommended to use the full version of the site through a browser on a computer or tablet, where it is more convenient to work with tables and files.

What if I filed a report and found an error?

If you find an error after sending, but before the check, you can try to withdraw the declaration through your personal account (if such a function is active at the moment). If the test is already underway, it is better to wait for its completion. In case of refusal due to an error, you will be able to submit an updated declaration (correction) with the correct data. The main thing is not to ignore the notification from the tax office.

Do I need to notarize copies of documents for online submission?

No, when submitting a declaration through the personal account of the taxpayer or the State Service, notarization of copies is not required. You upload scans or photos of the original documents. Legal force is given to such copies thanks to your qualified electronic signature (password login / SMS), with which you sign the sent package of documents.

When do I need to file a tax return if I want to receive a deduction?

For tax refund (receiving a deduction), there is no strict deadline for filing a declaration within a year. You can file 3-NDFL on any business day of the year following the year of expenses, and even later. However, the tax can be refunded only for the previous three years. For example, in 2026, you can submit declarations for 2026, 2026 and 2023.

Can the tax authorities refuse to deduct and what to do?

Yes, a waiver is possible if the expenses are not confirmed, do not apply to deductions, or the statute of limitations has expired. They also refuse if the applicant is not a payer of personal income tax. If you refuse, you will receive a motivated decision in your personal account. If you consider the refusal to be unreasonable, you can file objections, attaching additional evidence, or apply to a higher tax authority and court.