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How to file tax reports online in Ukraine: the Electronic Cabinet, qualified e-signature and receipts

Tax reports in Ukraine are filed online through the State Tax Service (STS) Electronic Cabinet or accounting software, signed with a qualified electronic signature (QES). A report is accepted once the second receipt confirms acceptance; the filing time is the time shown in the first receipt (para. 11, section II of MoF Procedure No. 557).

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In short

  • You need a valid QES of the director (and of the accountant if they sign) and access to the Electronic Cabinet or reporting software.
  • Electronic filing is mandatory for large and medium-sized companies, for all VAT reporting and for financial statements filed with the profit tax return (Art. 49.4 of the Tax Code).
  • An electronic report can be sent until the end of the last hour of the deadline day (Art. 49.5).
  • The first receipt arrives within two hours, the second no later than the next working day (paras. 8–9, section II of Procedure No. 557).
  • Which reports to file and when: see Tax reporting in Ukraine in 2026.

Filing methods under the Tax Code

A return can be filed in person or through a representative, by registered mail with an inventory, or electronically with a QES (Art. 49.3 of the Tax Code). Mail must be sent at least five days before the deadline; an electronic report may go until the end of the last day (Art. 49.5). The only ground to refuse an electronic return is an invalid signature, including an expired certificate, provided the return meets the e-document requirements, contains the mandatory details and is in a processable format (Art. 49.3).

Who must file electronically, Art. 49.4 of the Tax Code

WhoHowProvision
Large and medium-sized companiesAll returns electronicallyArt. 49.4, para. 1
VAT payersVAT reporting electronicallyArt. 49.4, para. 2
Profit tax payers filing electronicallyFinancial statements with the return, electronicallyArt. 49.4, para. 3
Micro and small companies, FOPsTheir choice: in person, by mail or onlineArt. 49.3

What you need: a QES and access to the Electronic Cabinet

A QES is a qualified electronic signature under Law No. 2155-VIII on electronic identification and trust services. The STS qualified trust service provider issues it free of charge (Art. 49.4-1). Since 26 August 2026 it issues certificates under the DSTU 7564:2014 (Kupyna) standard; according to the STS, existing certificates remain valid until they expire.

The Electronic Cabinet is the STS service for filing reports, receiving documents and viewing tax balances (Art. 42-1). Sending and receipt times are fixed with a qualified electronic time stamp. Accounting software that exchanges data with the STS through its API can be used instead. A company becomes a party to electronic document exchange from the first receipt on its first e-document, provided a second receipt confirms acceptance (para. 1, section III of Procedure No. 557).

Filing a return through the Electronic Cabinet

  1. Sign in with a QES Messages from state bodies open first; unread documents can block sending reports (Art. 42-1.1).
  2. Choose the form Use the form in force on the filing date (Art. 48.1).
  3. Fill in and check The STS checks the mandatory details of Art. 48.3 on acceptance; other figures are not checked before acceptance (Art. 49.8).
  4. Sign The e-document is complete once the signatories apply their QES and the company seal, if any (para. 2, section II of Procedure No. 557).
  5. Send and track receipts Keep both receipts together with the report.

Receipt No. 1 and No. 2: how to know the report was accepted

STS receipts, section II of Procedure No. 557

ReceiptWhen it arrivesWhat it means
FirstWithin two hours of receipt, otherwise in the first two hours of the next business day (para. 8)Result of the automatic check: format, mandatory details, signing rights; a failure means rejection with reasons
SecondNo later than the next working day after the first (para. 9)Acceptance with a registration number, or rejection with reasons

If no first receipt arrives in time, the document is treated as not received (para. 8). If a report was sent several times, the last one sent before the deadline and accepted with a second receipt is the original (para. 12). A refusal to accept an electronic return must be sent within five working days; otherwise the return is deemed accepted (Arts. 49.11.1 and 49.9.2).

Annual financial statements online

A profit tax payer files financial statements with its return (Art. 46.2), electronically if it reports electronically (Art. 49.4): for 2026, by 1 March 2027. Micro and small companies on the single tax file annual statements by 28 February; IFRS reporters file in taxonomy format with the financial reporting collection centre (paras. 4–5 of CMU Procedure No. 419). If an accounting firm keeps the books, the company head and the head of that firm sign the statements (Art. 11(1) of Law No. 996-XIV).

Filing errors and how to correct a report

Typical reasons for rejection are an invalid or expired certificate, a form not in force on the filing date, missing mandatory details and a signatory without signing rights. After a refusal the taxpayer may refile (paying the penalty if the deadline has passed) or appeal under Art. 56 (Art. 49.12). A new return with corrected figures filed before the deadline carries no penalty. After the deadline a corrective return is filed; understated tax is paid with a 3% penalty before filing, or shown in the next return with a 5% penalty (Art. 50.1). During a documentary tax audit, the audited period cannot be corrected (Art. 50.2). If several periods were missed, start with restoration of accounting.

When to hand filing over to an accountant

It pays to outsource filing once several reports are due each month, the company is a VAT payer or files financial statements with its profit tax return. Technical rejections show up only in receipts, and each missed deadline costs UAH 340 (Art. 120.1). We prepare and file reports with a QES, track receipts and STS letters and file corrections under our financial and tax reporting service and accounting services. The fee is agreed individually.

Legal basis

Provisions this article relies on

  • Art. 42-1, 46.2, 48.1, 48.3, 49.3–49.5, 49.8–49.12, 50.1–50.2 of the Tax Code — Electronic Cabinet, filing methods, acceptance, rejection, corrections
  • Sections II–III of MoF Procedure No. 557 on e-document exchange — receipts, filing date, e-document exchange status
  • Law No. 2155-VIII — qualified electronic signature
  • Paras. 4–5 of CMU Procedure No. 419 — financial statements deadlines and filing date

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FAQ

Can I file tax reports without a QES?

Electronic filing requires a QES: e-documents are signed with a qualified or advanced signature based on a qualified certificate (para. 2, section II of Procedure No. 557). A paper report can be filed in person or by mail where the law allows paper. Large and medium-sized companies and all VAT payers must file electronically (Art. 49.4).

What if I receive a rejection receipt?

Read the reason, fix the report and send it again. The filing time is the time in the first receipt for the report the STS accepts (para. 11). If the deadline has passed, file and pay the penalty or appeal the refusal (Art. 49.12).

How long does acceptance take?

The first receipt arrives within two hours of receipt by the STS, otherwise within the first two hours of the next business day. The second receipt with acceptance or rejection comes no later than the next working day after the first (paras. 8–9).

How do I file an annual report online?

A profit tax payer files its annual return with financial statements electronically within 60 days after the year end, for 2026 by 1 March 2027 (Arts. 46.2 and 49.4). Micro and small companies on the single tax file annual statements by 28 February.

Can I correct a report already filed?

Yes. Before the deadline, file a new return with correct figures and no penalty. After it, file a corrective return; understated tax is paid with a 3% penalty or shown in the next return with a 5% penalty (Art. 50.1). The period under a documentary audit cannot be corrected.

Hand over your tax filing

Tell us which reports your company files and whether the director and accountant have a QES. We will suggest a working format and timeline.

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