Certificate of existence C n°20: what it is for and how to get it

The certificate of existence, form Série C n°20, is the document the tax office gives you after your declaration of existence (form G n°8). It confirms that your tax file is open and carries your tax article number. It is requested for the steps that follow incorporation (statistical number, CASNOS, bank) and can be requested online on the DGI's Jibaya'tic portal.

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In short

Authority
Managing tax office (DGI, Directorate General of Taxes)
When
After form G n°8 is filed, at start-up
Content
Taxpayer identity, activity, tax article number
Online
Jibaya'tic, "Documents fiscaux" tab
Common uses
NIS, CASNOS registration, bank, files
Watch out
The same C n°20 code also appears at closure
Contents

What this form is for

When you file your declaration of existence (G n°8), the tax office opens your file, assigns you a tax article number and issues the certificate of existence. On the tax side, it is the proof that your business exists and is managed by an identified office.

The certificate says nothing about your payments: for what you have paid and what is still owed, you need the tax roll extract (extrait de rôle). Nor does it replace the NIF certificate, which carries your tax identification number.

Where you will be asked for it

  • Statistical registration (NIS) with the ONS (National Statistics Office): the certificate of existence is among the documents often requested.
  • CASNOS registration (social security for the self-employed) of the manager or trader.
  • Opening a business bank account, applying for a loan or a card terminal.
  • Administrative and commercial files that need proof the business is known to the tax office.

One code, two uses

Sources do not all say the same thing about the "C20". On the DGI side, the certificate of existence C20 is an open-file document requested at start-up. Several professional guides also explain that at closure, the certificate confirming that the closing balance sheet was filed, which the CNRC office requires for deregistration, is issued on the same Série C n°20 form.

MomentWhat the document confirmsWhat it is used for
Start-up (after form G n°8)The tax file exists, with its article numberNIS, CASNOS, bank, files
Closure (after the closing balance sheet or cessation return)That the closing balance sheet or cessation return was filedDeregistration file at the trade register
The two situations where people talk about "C n°20"

Who must file it

The certificate of existence concerns every taxpayer who has filed a declaration of existence: company, sole trader, professional, craftsperson, auto-entrepreneur. It is personal and is handed to the taxpayer or their representative.

  • At start-up: you normally receive it after filing form G n°8.
  • Later: you can ask for another copy, for example when an organisation wants a recent document.
  • Company: the request is signed by the manager (gérant), with the stamp.
  • Representative: with a power of attorney from the taxpayer or the manager.

Documents to attach

5 documents0 / 5

Filled-in example

Fictitious example of a request for a new copy of the certificate of existence, from a sole trader under the IFU who needs it for CASNOS registration. All data is invented.

Fictitious data, for illustration

Certificate of existence C n°20

C n°20
Addressee
The Head of the managing local tax centre (example)
Surname and first name
SURNAME First name (example)
NIF
1XXXXXXXXXXXXXX (fictitious)
Tax article number
16XXXXXXXXX (fictitious)
If you do not have it, the counter can find it with your NIF.
Activity
Retail sale of office supplies (example)
As on the trade register.
Place of business
12, rue des Exemples, Dely Brahim, Algiers (fictitious)
Subject
Request for a certificate of existence (Série C n°20)
Reason
CASNOS registration (example)
Place, date and signature
Algiers, 21/10/2026, taxpayer's signature

At start-up you do not need this letter: the certificate follows the G n°8 filing. It is for an extra or more recent copy.

Filling it in, step by step

  1. 1

    File form G n°8 first

    Within 30 days of starting the activity, at the tax office covering your registered office or place of business, with all the documents.

  2. 2

    Collect the certificate

    The office opens your file, assigns the article number and issues the certificate of existence. Ask when you can collect it.

  3. 3

    Check every entry

    Company or personal name, activity, address, article number: everything must match the trade register and form G n°8.

  4. 4

    Make copies

    The NIS office, CASNOS and the bank often ask for it. Keep the original and several copies.

  5. 5

    For a new copy, request it

    Online on Jibaya'tic if the service is open for you; otherwise by a written request to the managing office.

  6. 6

    At closure, ask for the right document

    After filing the closing balance sheet or cessation return, ask for the certificate confirming that filing for your CNRC deregistration file.

Where to file it

The certificate is issued by the office that manages your file: the tax inspection, the tax centre (CDI), the local tax centre (CPI) or the Large Enterprises Directorate (DGE). It is the same office where you filed form G n°8.

Your situationOffice
Business under the IFU, including auto-entrepreneursLocal tax centre (CPI) or inspection
Company or individual under the real regimeTax centre (CDI) or inspection
Large companyLarge Enterprises Directorate (DGE)
Office issuing the certificate, as a general rule

Requesting online

The DGI has announced a service on its Jibaya'tic portal for requesting the C20 certificate of existence and the tax roll extract online, then following the request in the "Documents fiscaux" tab. The press first presented it for DGE companies: check in your account whether it is open for your tax centre.

In September 2026, the national press also listed the "C20 certificate of existence" among the tax documents added to the Dzair Digital Services portal. We found no official page on that procedure on the verification date.

You can write the request for a new copy yourself with this guide. At setup, it is form G n°8 that triggers the certificate: see its page.

Two ways to get it done

Do it yourself with this guide, or hand us the whole setup file.

  1. 1I do it myself

    The free guide

    Everything you need is on this page: documents, deadlines, a filled-in example.

  2. 2We handle everything

    Full support

    We follow every setup step: 50,000 DA for a sole trader, 60,000 DA for a company, 10,000 DA less if your address is with Neuron.

    From 40,000 DA

    Start my setup

Deadlines

The certificate itself has no request deadline. The deadline that governs it is that of form G n°8: 30 days from the start of activity (for a trader or a company, the trade register date), set by Article 183 of the Direct Taxes Code (CIDTA).

The sooner you file form G n°8, the sooner you get the certificate, and the sooner you can move on to the NIS and CASNOS. Filing G n°8 late also exposes you, according to the DGI, to a tax fine of 30,000 DA.

Common mistakes

  • Confusing the certificate of existence with the tax roll extract (payment position) or the NIF certificate.
  • Missing the 30-day deadline for form G n°8 and delaying everything that follows (NIS, CASNOS).
  • Not checking the entries on the certificate before handing it to the bank or CASNOS.
  • Presenting the start-up certificate of existence for a deregistration, instead of the certificate confirming the closing balance sheet was filed.
  • Asking an office that does not manage your file.
  • Having a single copy and needing to request it again for every step.

Frequently asked questions

What is the certificate of existence C n°20?

It is the document issued by the tax office after the declaration of existence (form G n°8). It confirms that your tax file is open and carries your tax article number.

Is it the same as the NIF?

No. The NIF is your tax identification number, confirmed by its own certificate. The certificate of existence proves that the tax office manages your file and gives your article number.

Can I get the C20 online?

Yes, the DGI has opened an online request for the C20 and the tax roll extract on Jibaya'tic, tracked in the "Documents fiscaux" tab. It was first announced for DGE companies: check whether it is open for your tax centre.

Why do some people mention the C20 when closing a business?

Several professional guides say that at closure, the tax office issues on the same C n°20 form a certificate confirming that the closing balance sheet was filed, which the CNRC requires for deregistration. We found no official DGI confirmation: ask the office for the document confirming that filing.

Is there a fee for the certificate of existence?

We found no official fee on the DGI's pages. Your only costs are copies.

How long is it valid?

No official period was found. It describes your position on its date: if an organisation requires a recent document, request a new copy.

My business uses a domiciliation address: which office issues the certificate?

The tax office covering your registered office address, which is your domiciliation address. That is where you filed form G n°8.

Can Neuron handle it?

Not the request for a new copy: you can do it yourself with this guide. In the full start-up support service these steps are handled for you: 50,000 DA for an individual, 60,000 DA for a company, 10,000 DA less with domiciliation at Neuron (official fees excluded).

Official sources (6)

  1. [1]DGI: new online service on Jibaya'tic (C20 and tax roll extract)
  2. [2]DGI: how to open a tax file
  3. [3]DGI: request for personal tax documents
  4. [4]DGI: tax return forms (Série G n°8)
  5. [5]Law n° 24-08 of 24 November 2024, 2025 Finance Act, Official Journal n° 84 (Art. 14, Article 183 CIDTA)
  6. [6]Announcement of tax documents, including the C20 certificate of existence, added to the Dzair Digital Services portal, September 2026 (national press)

Written and checked by the Neuron Cowork team, Dely Brahim. Checked on . Our editorial policy

This is general information, checked on the date shown. Rules change: if in doubt, the official text cited prevails.

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