The principle: each step triggers the next
Your obligations start with the trade register extract. The register opens the door to the tax office, the tax office to CASNOS and the ONS (statistics office), and together they open the door to the bank and your first customers. This guide follows the real order of things, from the first month to the first set of accounts.
The first month: finishing registration
- 1
Declaration of existence (G n°8) and NIF
Within 30 days of starting business, file the G n°8 with the tax office responsible for your registered office and request your NIF online at nifenligne.mf.gov.dz. For an individual, the G n°8 is where the regime (IFU or real) is set: since the 2026 Finance Law, some options chosen at this stage are binding on the new taxpayer.
- 2
Registering with CASNOS, before day 10
The self-employed manager (sole partner of an EURL, majority manager of an SARL) or the sole trader registers with CASNOS within 10 days of starting business. The period runs from the date of the trade register extract, so do not wait for the NIS. Offices in Algiers ask for the certificate of existence issued after the G n°8.
- 3
NIS from the ONS
With the trade register extract and the NIF, request your statistical identification number from the National Office of Statistics. The bank and CNAS ask for it.
- 4
Beneficial owners
Companies declare to the CNRC (trade register centre) the individuals who own or control them, on a dedicated form submitted with the registration file. Remember to update it if the partners change.
- 5
Bank account and company stamp
With the trade register, the NIF and the NIS, open the company's business account and have the company stamp made, which many forms and the bank will ask for.
As soon as you hire
Your first employee creates new obligations. Within ten days of hiring, the employer files its declaration of activity with the CNAS branch where it is located and registers the employee. Each later hire is declared within the same deadline. Contributions (34.5% of salary, 9% of which is withheld from pay) are then declared and paid quarterly below ten employees, monthly above, within 30 days of the period. On the tax side, income tax withheld from salaries is paid over with the G n°50 (real regime) or the G n°50 ter (IFU).
Every month or every quarter
| Your regime | Routine return | Deadline |
|---|---|---|
| Real regime (any company, individual under the real regime) | G n°50: VAT, tax withheld on salaries and other taxes for the month | Within the first 20 days of the following month |
| IFU, with staff | G n°50 ter: tax withheld on salaries for the quarter | 20 April, 20 July, 20 October, 20 January |
| IFU | G n°12: forecast turnover and payment (full or 50%) | By 30 June |
| Employer with fewer than 10 employees | CNAS declaration and payment | Within 30 days after each quarter |
| Employer with 10 or more employees | CNAS declaration and payment | Within 30 days after each month |
At the end of the first year
| Deadline | Obligation | Who |
|---|---|---|
| 20 January | G n°12 bis: actual turnover for the year | IFU |
| End of January | Annual declaration of salaries and employees (DAS) to CNAS | Employers |
| 1 March | Declaration of the year's income to CASNOS | Self-employed |
| 30 April | G n°4 (companies) or G n°11 and G n°1 (individuals under the real regime), G n°29 if staff | Depending on regime |
| 30 June | CASNOS contribution payment; G n°12 for the second year | Self-employed; IFU |
For a company, closing the financial year also means having the accounts approved by the partners, recorded in the minutes of a general meeting, and then filing the company accounts with the CNRC. Both steps have their own formal and timing rules under the Commercial Code: plan for them from the first financial year.
Keeping your paperwork
- Keep every purchase and sales invoice, filed by month. They support your returns and your CASNOS base.
- Under the real regime, keep full accounts. Many young businesses hand them to an accountant from the first month.
- Keep every filing receipt and payment receipt. If you are audited or need a certificate, they are your proof.
- Use the same company name and registered office address everywhere, character for character.
Changes you must declare
Moving the registered office, a new manager, a new activity, a change of capital, a partner joining or leaving: each change first goes through an amendment to the trade register, then must be reported to the tax office, CASNOS and, where relevant, CNAS and the bank. A change of partners may also require updating the beneficial owners declaration.
Two ways to get it done
This guide is all you need to do it yourself. Neuron does not do bookkeeping or routine tax and social returns; we can, however, provide your registered address.
1I do it myself
The free guide
Everything you need is on this page: documents, deadlines, a filled-in example.
Free
Follow the guide2An address for your head office
Domiciliation in Dely Brahim
Your registered office in Algiers, with a 1 or 2 year notarised contract and your mail received.
6,000 DA/ month
Register my company