With the onset of the new calendar year, millions of citizens are faced with the need to report their income to the state. This applies not only to entrepreneurs, but also to ordinary people who have sold property, received winnings or want to return part of the taxes paid through tax deduction. Correctly filling out the 3-NDFL declaration becomes a critical step, on which the absence of fines and the speed of refunds depend.
Modern technologies have significantly simplified the process of interaction with fiscal authorities. Now you don’t need to stand in lines or fill out paper forms by hand, as there is a convenient Taxpayer personal account. However, even with digital tools, it is important to understand the logic of filling out the fields in order to avoid technical errors that could lead to refusal to accept documents.
In this article we will analyze in detail all the stages of preparing and submitting reports. You will learn what documents need to be collected in advance, how to correctly indicate income codes and what nuances exist when applying for deductions for treatment, education or the purchase of housing.
Who is required to file a declaration and when?
The legislation clearly defines the categories of citizens who are required to file a declaration, as well as those who do so voluntarily. First of all, these are persons who received income from which tax was not withheld by the tax agent. This includes income from the sale of property owned for less than the minimum period of ownership, as well as lottery winnings.
A separate category is individual entrepreneurs on the general taxation system, notaries and lawyers. For them, filing reports is a mandatory part of doing business. If you received income from sources outside the Russian Federation, you are also required to report and pay tax if it was not paid in the country where the income was received according to international agreements.
⚠️ Attention: The deadline for filing a 3-NDFL declaration for those who are obliged to do this is strictly regulated - until April 30 of the year following the reporting year.
For citizens wishing to receive a tax deduction (return part of the personal income tax paid), the deadline for filing a declaration is not limited to April 30. You can submit documents at any time during the year. However, it is worth remembering the three-year statute of limitations: you can only return taxes for the previous three years.
Necessary documents for filling out 3-NDFL
High-quality preparation of documentation is 90% of success when filling out a declaration. Errors often arise due to inattentive transfer of data from primary documents. Before starting work in Federal Tax Service software or web interface, you need to collect a complete package of papers.
The basis for filling out information about income received in the Russian Federation is a certificate 2-NDFL. It is issued by the employer or another source of income payment. This document contains all the necessary income codes, accrual amounts and withheld tax. Without this certificate, it is almost impossible to fill out the income section correctly.
If you plan to claim expenses for a deduction, you will need supporting documentation. These can be contracts for treatment, educational services, purchase agreements for real estate, as well as payment documents (checks, receipts) confirming the fact of payment.
- 📄 Passport of a citizen of the Russian Federation (main pages and registration).
- 💳 Certificate of income and tax amounts of an individual (form 2-NDFL).
- 🏠 Documents confirming the right to deduct (agreements, licenses, checks).
- 🏦 Bank account details for tax refund.
It is important to check that all documents are up to date. The 2-NDFL certificate must be an up-to-date version, and the account details must match the data in the bank. Any discrepancy in one figure may result in the money not reaching the recipient.
☑️ Document verification
Step-by-step instructions: filling out in your Personal Account
The most convenient and reliable way to submit reports is to use Taxpayer's personal account (LKN) on the official website of the Federal Tax Service. This method eliminates errors in arithmetic calculations, since the system does them automatically. You can use your State Services account to log in.
After authorization, you must go to the “Income and Deductions” section and select “Declarations”. The system will prompt you to create a new declaration. At the first stage, the reporting year is selected. Next, you should carefully fill out the “General Information” block, where your full name, TIN and passport data will be automatically loaded.
The next stage is adding sources of income. Here you need to select the type of income (for example, “Income from sources in the Russian Federation”) and enter the employer’s data from the 2-NDFL certificate. The system often offers to upload the certificate automatically if the employer has already submitted the data to the tax office. This saves a lot of time and reduces the risk of typos.
Path to the LKN menu: Income and deductions → Declarations → Submit declaration 3-NDFL → Fill out onlineWhen filling out the deductions section, you must select the appropriate type (standard, social, property). In the window that opens, you will need to enter the expense amounts and upload scanned copies or photographs of supporting documents. The file format must usually be PDF or JPG, and the size must not exceed established limits.
What to do if the employer has not submitted 2-NDFL to the Federal Tax Service?
If there is no data on the 2-NDFL certificate in your Personal Account, you will have to enter it manually. Carefully transfer all the numbers from the paper or electronic version of the certificate received from the employer, especially the income codes and tax amounts.>
Common mistakes when filling out
Even with automated systems, taxpayers often make mistakes that lead to the suspension of desk audits. One of the most common problems is incorrect indication of income codes. Each type of payment has its own digital code, and confusion between them can distort the tax base.
Errors in calculating the amounts to be refunded are also common. Citizens sometimes forget that the deduction cannot exceed the amount of tax paid for the year. If you paid the state 50,000 rubles, and the deduction was claimed for 100,000 rubles, only 50,000 will be returned, and the balance will be transferred to the next year (in the case of a property deduction).
| Error type | Consequence | How to fix |
|---|---|---|
| Invalid income code | Denial of admission or clarification | Check with certificate 2-NDFL |
| Error in account details | Non-refund | Apply for clarification |
| Lack of documents | Pausing the scan | Upload scans to LKN |
Another critical mistake is filing a return for the wrong period. Always make sure that the tax period you select matches the year in which the income was earned or expenses incurred. It is very easy to confuse 2023 and 2026 when filing in 2026.
⚠️ Attention: If you find an error in an already submitted declaration, you must submit a clarifying declaration (corrective) indicating the correction number “1”.
Tax deductions: how to get your money back
The Institute of Tax Deductions allows citizens to return part of their personal income tax. This is a legal way to reduce your tax burden. There are several main types of deductions that are most popular among the population.
Social deductions are provided for treatment, education (your own or your children’s), charity and life insurance. The spending limit for most social deductions is 120,000 rubles per year (in total), which allows you to return up to 15,600 rubles. The deduction for expensive treatment has no limits.
Property deduction when buying a home is one of the most significant. The maximum amount of expenses from which tax can be refunded is 2,000,000 rubles (refund is 260,000 rubles). You can also get a tax refund on mortgage interest paid (limit 3,000,000 rubles, refund 390,000 rubles).
- 💊 Social: treatment, medications, training, sports.
- 🏠 Property: buying an apartment, house, land.
- 📈 Investment: operations with securities (IIS).
- 👶 Standard: for children, for certain categories of citizens.
To receive a deduction, it is important that you have official income taxed at a rate of 13%. If you are not working or working informally, there will be nothing to return, even if the treatment costs were huge.
Desk audit and tax refund
Once you have submitted your declaration, the desk review process begins. By law, it lasts up to three months. During this period, the tax inspector checks the correctness of tax calculation and compliance of the declared deductions with the law.
The verification status can be tracked in your Personal Account. If the inspector has questions, he may request additional documents or clarification. You need to respond to such requests promptly, through the same LCN interface, attaching the necessary files.
If the check is successful, a decision is made to refund the tax. After this, the treasury has one more month to transfer funds to the account you specified. It is important that the account is opened in the name of the declarant.
The total tax refund period from the date of filing the declaration is up to 4 months: 3 months for verification and 1 month for transferring money.
If the deduction is denied, you will receive a reasoned decision, which you can appeal to a higher tax authority or in court. However, if the documents are filled out correctly and the originals are available, refusals rarely occur.
Do I need to file a declaration if I am just selling a car?
Yes, if you have owned the car for less than 3 years (or 5 years in some cases), you are required to file a return, even if the tax due is zero (for example, if you sell it for less than the purchase price). The penalty for failure to file is 5% of the tax amount, but not less than 1000 rubles.
Can I get a deduction if I am self-employed?
Self-employed people pay professional income tax (PIT), not personal income tax. Since the NPT rate is different and does not provide for standard deductions within the framework of 3-NDFL, it is impossible to return the tax in the classical sense if you do not have parallel work under an employment contract.
What should I do if I lost my 2-NDFL certificate?
You can restore the certificate from your employer. Also, a copy of the certificate is often available in the taxpayer’s Personal Account if the employer submitted the data electronically. Without the data from this certificate, it will not be possible to fill out the income section correctly.
What is the penalty for late filing of a return?
If you were required to file a return (there was tax due), the fine is 5% of the unpaid amount for each month of delay, but not more than 30% and not less than 1000 rubles. If there is no tax to pay, the fine is fixed - 1000 rubles.