Form G n°50 ter: the quarterly return for IFU taxpayers

Form G n°50 ter is the quarterly return for taxpayers under the IFU (Algeria's single flat-rate tax for small businesses). It is used to declare and pay over the income tax (IRG) withheld from your employees' salaries. It is filed with payment within the first 20 days of the month after each calendar quarter: by 20 April, 20 July, 20 October and 20 January.

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In short

Authority
Directorate General of Taxes (DGI)
Who
IFU taxpayers who withhold income tax from salaries
Frequency
Quarterly
Deadlines
20 April, 20 July, 20 October, 20 January
Content
Income tax withheld at source from the quarter's salaries
Where
Local tax centre (CPI) or tax inspection for your place of business
Contents

What this form is for

The IFU covers the business owner's tax on the activity. Employees' income tax is a separate tax: the employer withholds it from each payslip and must pay it over to the Treasury. Form G n°50 ter is the form for this payment for IFU taxpayers: one return per quarter, whereas businesses under the real regime use form G n°50 every month.

The IFU itself is declared on form G n°12 (forecast, in June) and form G n°12 bis (final, in January). An IFU taxpayer who employs staff therefore deals with three forms a year.

FormPurposeDeadline
G n°12Forecast IFU for the year30 June
G n°12 bisFinal IFU for the past year20 January
G n°50 terIncome tax withheld from the quarter's salaries20th of the month after the quarter
Returns of an IFU taxpayer with employees

Who must file it

Taxpayers under the IFU regime who withheld income tax from salaries during the quarter: traders, craftspeople or service providers under the IFU who employ staff.

Businesses under the real regime do not use it: they declare withheld income tax every month on form G n°50. If you move from the IFU to the real regime, you also move from G n°50 ter to G n°50.

Employing staff also means registering with the CNAS (the national social insurance fund for employees) as an employer and paying social contributions. That is a separate procedure, not handled through form G n°50 ter.

Documents to attach

5 documents0 / 5

Filled-in example

Fictitious example: a carpenter under the IFU employs two people and prepares the G n°50 ter for the third quarter of 2026. Simplified headings, sample amounts.

Fictitious data, for illustration

G n°50 ter

G n°50 ter
Period
3rd quarter 2026 (July, August, September)
Surname and first name
SURNAME First name (example)
NIF and article number
From the NIF certificate and the certificate of existence
Activity
Carpentry (example)
Number of employees
2
Taxable salaries for the quarter
270,000 DA
Two employees, three months of payroll.
Income tax withheld in July
6,700 DA
Income tax withheld in August
6,700 DA
Income tax withheld in September
6,700 DA
Total to pay over
20,100 DA
Sum of amounts withheld from each payslip under the income tax scale.
Deadline
20 October 2026
Place, date and signature
Algiers, 14/10/2026

The income tax amounts above are examples. Each amount withheld is calculated on that month's payroll, using the scale in force.

Filling it in, step by step

  1. 1

    Add up the quarter's withholdings

    Take the three payrolls of the quarter and note the income tax withheld on each.

  2. 2

    Check each amount

    Each amount must match the income tax scale applied to the month's taxable salary. A payroll error carries straight into the return.

  3. 3

    Fill in the identification

    Name, NIF, tax article number, activity, address of the place of business and the quarter concerned.

  4. 4

    Enter the amounts

    Salaries and income tax withheld, month by month or as a total depending on the form's layout, then the total to pay over.

  5. 5

    Date and sign

    Place, date and the taxpayer's signature. Make a copy before filing.

  6. 6

    File and pay by the 20th

    At the CPI or tax inspection, with payment. In January, file your G n°12 bis at the same time.

  7. 7

    File your records

    Keep the receipt with the quarter's payslips: they support the amounts if you are audited.

Where to file it

At the tax office that manages your IFU: the local tax centre (CPI) or the tax inspection for your place of business. Payment goes with the return.

Online: the DGI offers filing and payment on its Jibaya'tic portal to taxpayers whose file is linked to it. Ask your CPI whether that applies to you.

Neuron only fills in business setup forms and does not do bookkeeping or routine returns: this guide is free and all you need to do it yourself. For bookkeeping and ongoing returns, see an accountant.

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.

  1. 1I do it myself

    The free guide

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

  2. 2An 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

Deadlines

Payment is due within the first twenty days of the month after the calendar quarter in which the tax was withheld.

QuarterMonths coveredDeadline
1st quarterJanuary, February, March20 April
2nd quarterApril, May, June20 July
3rd quarterJuly, August, September20 October
4th quarterOctober, November, December20 January of the following year
G n°50 ter calendar

Common mistakes

  • Using the monthly G n°50 while under the IFU.
  • Missing the January deadline, which falls on the same day as G n°12 bis.
  • Leaving one month's payroll out of the quarterly total.
  • Forgetting to withhold income tax from a payslip: the amount still has to be paid over.
  • Confusing employees' income tax with CNAS contributions, which are declared elsewhere.
  • Not keeping the payslips that support the amounts.

Frequently asked questions

Does form G n°50 ter really exist? People mostly talk about G n°50.

Yes. It is the quarterly form for IFU taxpayers, mentioned by the DGI in its official notices alongside G n°50 and G n°12 bis. The monthly G n°50 is for businesses under the real regime.

I am under the IFU with no employees: do I file?

You have no payroll income tax to pay over. Ask your CPI whether a nil return is expected for your file.

What are the deadlines?

By 20 April, 20 July, 20 October and 20 January, for the quarter that has just ended.

Do CNAS contributions go through form G n°50 ter?

No. Employees' social contributions are declared and paid to the CNAS. Form G n°50 ter only covers income tax withheld from salaries.

Can I file and pay online?

If your file is linked to the DGI's Jibaya'tic portal, yes. Otherwise, you file and pay at the counter of your CPI or tax inspection.

What happens if I move to the real regime?

You leave the quarterly rhythm: income tax withheld from salaries is then declared every month on form G n°50, with your other taxes. Your tax inspection will tell you from which month.

Can Neuron fill in my G n°50 ter?

No. Neuron only fills in business setup forms and does not do bookkeeping or routine returns: this guide is free and all you need to do it yourself. For bookkeeping and ongoing returns, see an accountant.

Official sources (5)

  1. [1]DGI: extension of deadlines for forms G n°50, G n°50 ter and G n°12 bis
  2. [2]DGI: the single flat-rate tax (IFU) regime
  3. [3]DGI: tax return forms (Série G n°50 ter)
  4. [4]DGI: income tax on wages and salaries
  5. [5]2020 Finance Act (Art. 282 bis CIDTA)

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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