- 15.01.2025
- Submittal company tax return (paper version) for financial year closing 30.06.2024 payment and Finprof salary-return re withholding tax on salaries (04q2024)
- 27.01.2025
- Submission VAT-return 04q2024 / payment VAT-balance 04q2024 (IBAN BE22 6792 0030 0047)
- 28.02.2025
- Belcotax return payroll resume fiche 281.20 for directors (income FY 2024)
- 31.03.2025
- ASBL/VZW: non profit declaration “DROIT de SUCCESSION” ** social security contribution payment for self-employed independents & company directors / Belgian tax residents (01q2025)
- 31.03.2025
- Annual VAT: list of sales to Belgian clients having a Belgian VAT number
- 10.04.2025
- Prepayment income tax (1st chance to pay self-assessed deposit for FY 2025 individual income taxes)
- 15.04.2025
- Finprof salary-return re withholding tax on salaries (1q2025)
- 25.04.2025
- Submission VAT-return (01q2025)
- 30.06.2025
- Belcotax-transmission of fiches 281.50 according Belcotax protocol (offical declaration of paid fees)
- 30.06.2025
- Deadline for submittal of FY 2024 individual income tax return form 276.1 for Belgian tax residence holders (paper version – sent by post) – residence-holders
- 30.06.2025
- Social security contribution payment for self-employed independents & company directors / Belgian tax residents (2q2025)
- 10.07.2025
- Prepayment income tax (2nd chance to pay self-assessed deposit for FY 2025 individual income taxes) – BE61 6792 0022 9117
- 15.07.2025
- Payment and Finprof salary-return re withholding tax on salaries (2q2025)
- 15.07.2025
- Deadline for the online transmission of the annual individual income tax return form (via personal e-ID-card – ‘tax on web’ protocol – if filed via e-ID-card of your BRUSSELS ACCOUNTANTS assistant
- 25.07.2025
- Payment VAT – balance 02q2025 (IBAN BE22 6792 0030 0047)
- 08.08.2025
- Submission VAT-return 02q2025
- 31.08.2025
- Ultimate date for filing statutory company accounts closed 31.12.2024 at the Central Balance Sheet Office of Belgian National Bank at the lowest administrative cost possible (later publication will lead to a fine)
- 30.09.2025
- Social security contribution payment for self-employed independents & company directors / Belgian tax residents (03q2025)
- 16.10.2025
- Deadline for filing FY 2024 individual income tax returns (if sent via ‘tax on web’ application and based on a BRUSSELS ACCOUNTANTS’ proxy) – residence-holders
- 30.09.2025
- Deadline for submission of company tax return for Belgian companies, branches and not for profit associations regarding their financial year closed 31.12.2024 (Biztax)
- 10.10.2025
- Prepayment income tax (3th chance to pay self-assessed deposit for FY 2025 individual income taxes) – BE61 6792 0022 9117
- 15.10.2025
- Payment and Finprof salary-return re withholding tax on company director’s salaries (03q2025)
- 25.10.2025
- Submission VAT-return 03q2025 / payment VAT-balance 03q2025(IBAN BE22 6792 0030 0047)
- 05.11.2025
- Deadline for filing the personal income tax declaration for Non-Residents (paper version), income 2024
- 03.12.2025
- Deadline for filing the income tax declaration for Non-Residents (transmitted online via tax on web, with or without a proxy)
- 21.12.2025
- Prepayment income tax (4th chance to pay self-assessed deposit for FY 2025 individual income taxes) – BE61 6792 0022 9117
- 31.12.2025
- Social security contribution payment for self-employed independents & company directors / Belgian tax residents (04q2025)
BRUSSELS ACCOUNTANTS BV can help with these formalities.