| 26 January 2026 | D406 — SAF-T assets (annual) | Annual | 2026 |
| 25 February 2026 | D112 — Payment obligations return | Monthly | January 2026 |
| 25 February 2026 | D300 — VAT return (monthly) | Monthly | January 2026 |
| 02 March 2026 | D394 — Informative return (monthly) | Monthly | January 2026 |
| 02 March 2026 | D406 — SAF-T (monthly) | Monthly | January 2026 |
| 25 March 2026 | D112 — Payment obligations return | Monthly | February 2026 |
| 25 March 2026 | D300 — VAT return (monthly) | Monthly | February 2026 |
| 30 March 2026 | D394 — Informative return (monthly) | Monthly | February 2026 |
| 30 March 2026 | D406 — SAF-T (monthly) | Monthly | February 2026 |
| 27 April 2026 | D112 — Payment obligations return | Monthly | March 2026 |
| 27 April 2026 | D300 — VAT return (monthly) | Monthly | March 2026 |
| 27 April 2026 | D300 — VAT return (quarterly) | Quarterly | Q1 2026 |
| 30 April 2026 | D394 — Informative return (monthly) | Monthly | March 2026 |
| 30 April 2026 | D406 — SAF-T (monthly) | Monthly | March 2026 |
| 30 April 2026 | D406 — SAF-T (quarterly) | Quarterly | Q1 2026 |
| 25 May 2026 | D112 — Payment obligations return | Monthly | April 2026 |
| 25 May 2026 | D300 — VAT return (monthly) | Monthly | April 2026 |
| 25 May 2026 | Unified return (D212) | Annual | 2026 |
| 01 June 2026 | D394 — Informative return (monthly) | Monthly | April 2026 |
| 01 June 2026 | D406 — SAF-T (monthly) | Monthly | April 2026 |
| 01 June 2026 | Annual financial statements | Annual | 2026 |
| 25 June 2026 | D112 — Payment obligations return | Monthly | May 2026 |
| 25 June 2026 | D300 — VAT return (monthly) | Monthly | May 2026 |
| 30 June 2026 | D394 — Informative return (monthly) | Monthly | May 2026 |
| 30 June 2026 | D406 — SAF-T (monthly) | Monthly | May 2026 |
| 27 July 2026 | D112 — Payment obligations return | Monthly | June 2026 |
| 27 July 2026 | D300 — VAT return (monthly) | Monthly | June 2026 |
| 27 July 2026 | D300 — VAT return (quarterly) | Quarterly | Q2 2026 |
| 30 July 2026 | D394 — Informative return (monthly) | Monthly | June 2026 |
| 30 July 2026 | D406 — SAF-T (monthly) | Monthly | June 2026 |
| 30 July 2026 | D406 — SAF-T (quarterly) | Quarterly | Q2 2026 |
| 25 August 2026 | D112 — Payment obligations return | Monthly | July 2026 |
| 25 August 2026 | D300 — VAT return (monthly) | Monthly | July 2026 |
| 31 August 2026 | D394 — Informative return (monthly) | Monthly | July 2026 |
| 31 August 2026 | D406 — SAF-T (monthly) | Monthly | July 2026 |
| 25 September 2026 | D112 — Payment obligations return | Monthly | August 2026 |
| 25 September 2026 | D300 — VAT return (monthly) | Monthly | August 2026 |
| 30 September 2026 | D394 — Informative return (monthly) | Monthly | August 2026 |
| 30 September 2026 | D406 — SAF-T (monthly) | Monthly | August 2026 |
| 26 October 2026 | D112 — Payment obligations return | Monthly | September 2026 |
| 26 October 2026 | D300 — VAT return (monthly) | Monthly | September 2026 |
| 26 October 2026 | D300 — VAT return (quarterly) | Quarterly | Q3 2026 |
| 30 October 2026 | D394 — Informative return (monthly) | Monthly | September 2026 |
| 30 October 2026 | D406 — SAF-T (monthly) | Monthly | September 2026 |
| 30 October 2026 | D406 — SAF-T (quarterly) | Quarterly | Q3 2026 |
| 25 November 2026 | D112 — Payment obligations return | Monthly | October 2026 |
| 25 November 2026 | D300 — VAT return (monthly) | Monthly | October 2026 |
| 30 November 2026 | D394 — Informative return (monthly) | Monthly | October 2026 |
| 30 November 2026 | D406 — SAF-T (monthly) | Monthly | October 2026 |
| 25 December 2026 | D112 — Payment obligations return | Monthly | November 2026 |
| 25 December 2026 | D300 — VAT return (monthly) | Monthly | November 2026 |
| 30 December 2026 | D394 — Informative return (monthly) | Monthly | November 2026 |
| 30 December 2026 | D406 — SAF-T (monthly) | Monthly | November 2026 |