INSS Registration Mozambique: Guide for Workers & Companies

Registering with INSS (Social Security) Mozambique is the step that connects your work to your social protection. If you have just been hired or started a business, it must happen within the first 15 days: the company is responsible for registering itself and its workers, either in person at a branch office or, in many cases, without leaving the office, through SISSMO.

The good news is that the process is simple, requires few documents, and has a fixed rate: 7% of earnings, with 4% paid by the company and 3% deducted from the worker.

This guide to INSS (Social Security) registration in Mozambique explains the complete step-by-step process for two different situations. If you are an employee, you will understand what the company is required to do for you, how to confirm you are registered, and what you gain from it.

If you are an employer, you will find the exact documents that INSS (Social Security) requires, the deadlines you cannot miss, and the consequences of non-compliance. The rules come from the official INSS (Social Security) website (inss.gov.mz) and Labour Law 13/2023 — see what changed with Law 13/2023 — published in the Government Gazette.

The INSS (Social Security) — National Social Security Institute — is the body that manages Mandatory Social Security in Mozambique. As long as you are registered and your contributions are up to date, this system pays you allowances and pensions when you need them: sickness, maternity, disability, old age, and support for your family.

Without registration, there is no record of contributions — and without contributions, there are no benefits. Therefore, confirming your registration is one of the first things to do when you start formal employment.

The short answer

• Who registers: the company registers itself first and then registers each worker. It is the official INSS (Social Security) rule, not a courtesy from the employer.
• Deadline: company registration must be completed within 15 days of starting business activity.
• Company documents: business permit or licence, Modelo 2 Tax Form, NUIT, ID document of the owner or representative, and, for companies, the official gazette (Boletim da República).
• Worker documents: just an ID document — Identity Card, birth certificate, personal identity card, or passport.
• Contribution rate: 7% of monthly earnings — 4% paid by the company and 3% deducted from the worker, submitted together to INSS (Social Security).
• Filing and payment: between the 20th of the current month and the 10th of the following month.
• Online: with SISSMO credentials, the company can register workers and declare earnings without visiting a branch office.

What is INSS (Social Security) and why registration matters

INSS (Social Security) is the National Social Security Institute of Mozambique, overseen by the Ministry of Labour, Gender and Social Action. It manages the mandatory social protection scheme for employees — as well as a dedicated scheme for self-employed workers.

Registration creates two separate records. The first is the contributor record, which identifies the employer and assigns them a Social Security contributor number. The second is the beneficiary record, which identifies each worker. Without a beneficiary number, the deduction made on your payslip isn't linked to anyone — yet this record is what secures your future rights.

Once your number is active, the system counts your contribution months. This count qualifies you for key benefits: sickness benefit, maternity and paternity benefit, disability pension, old-age pension, and family benefits such as the survivor's pension. INSS (Social Security) even offers options to keep your record active between jobs through Voluntary Maintenance in the System.

How to register your company with INSS (Social Security) as an employer

If you are an employer, your duty starts before hiring your first worker. Company registration must be completed within 15 days from the date activities start. Once registered, your company is responsible for pre-registering each worker and submitting the official notice with their beneficiary number to INSS (Social Security).

These are the documents INSS (Social Security) requires for company registration:

• Alvará or simplified economic activity licence;
• Tax Authority Model 2 — start of activities;
• NUIT — Unique Tax Identification Number;
• Identity document of the owner or legal representative;
• Boletim da República (Official Gazette) of company incorporation, in the case of corporate entities;
• If the owner or representative is a foreign national with a passport, complete the Taxpayer identification form.

Note that registration is free. What you pay later is the monthly contribution, not the act of registering. You also do not need to renew your registration: it remains valid for as long as the company exists.

Your company must notify INSS (Social Security) in writing of any relevant changes — change of address, temporary or permanent closure of activities, and business transfer (closure of activities requires Tax Authority Model 3; business transfer requires the relevant certificate).

A practical note: if your company hires someone today and pays their first salary at the end of the month, INSS (Social Security) expects to find the workers registered in the meantime. Pre-registering a worker before their first day on the job avoids last-minute stress during your first payroll declaration.

How worker registration works

Your employer handles your registration, not you. The company submits the Worker Identification Form to INSS (Social Security), along with a simple photocopy of your identity document. In return, INSS (Social Security) assigns you a beneficiary number, which your employer must pass on to you.

Your identity document can be any of the following:

• National Identity Card (BI);
• Birth certificate or birth record;
• Personal card (cédula pessoal);
• Passport (including foreign workers with a DIRE).

You cannot complete this step yourself — but you can double-check everything. Ask your HR department for your INSS (Social Security) beneficiary number. If no one can give you an answer, that is a red flag: either your registration was never submitted, or your deductions might be going missing. INSS (Social Security) itself advises workers to demand registration, as all your future benefits depend on it.

If you change companies, your new employer registers you under their contributor account — your beneficiary number stays the same, and your contribution months continue to add up throughout your career.

This record is precious — and the general guide to INSS (Social Security) in Mozambique explains each benefit in detail: anyone leaving formal employment can keep their record active through Voluntary Maintenance, provided they have at least 5 years of registration and 3 years and 4 months (40 months) of paid contributions, and apply for voluntary maintenance within one year of stopping work.

How much you pay: the 7% rate

The total Social Security contribution rate is set at 7% of monthly earnings and allowances paid to workers. Here is the official breakdown:

• 4% — paid by the employer (contributor);
• 3% — deducted from the worker (beneficiary).

In practice, the company submits the 7% together: it deducts 3% from your salary, adds its own 4%, and remits everything to INSS (Social Security). That is why your net salary already reflects the 3% deduction — if you want to see how this deduction fits with income tax and other allowances, the net vs gross salary guide shows the full calculation.

Keep in mind one detail that often causes confusion: self-employed workers also contribute, but they cover the full rate themselves — 7% without an employer share. The calculation base is based on declared earnings rather than a fixed amount: higher earners contribute more, and their future pension amounts follow this contribution history.

Declaration and payment deadlines

Once registered, the monthly cycle begins. Employers must declare worker earnings to INSS (Social Security) and pay the contribution within the same window: from the 20th of the current month to the 10th of the following month. In other words, September earnings are declared and paid between 20 September and 10 October.

When the deadline falls on a Saturday, Sunday, or public holiday, it moves to the next business day. Delays come at a cost: once the deadline passes, the company must pay a fine.

For workers, the key point is different — if your employer is fully paid up, your contribution months are recorded without gaps, and this record determines eligibility for benefits like sickness allowance (which requires 6 months of contributions in the 12 months prior to the incapacity).

On your payslip, the 3% deduction must be itemised clearly. If you see an INSS (Social Security) deduction on your payslip but do not know your beneficiary number, sort it out next month — not on the day you need the benefit.

SISSMO: registering and declaring online

SISSMO — Mozambique's Social Security Information System — is the online platform of the INSS (Social Security), launched in 2011 as part of service modernization efforts. It acts as a digital counter: using access credentials (username and password), taxpayers can complete tasks from their office that used to require queuing at a branch office.

With SISSMO, your company can:

• Register workers and receive their beneficiary numbers;
• Submit the monthly remuneration declaration;
• Issue payment slips;
• Check clearance status and contribution history.

The INSS (Social Security) issues credentials when registering the company, and you change your password on your first login. If you lose your password, you must request a new one in person with proof of identity, or call the toll-free helpline at 800230230. Workers also have dedicated services: "Meu Número INSS" lets them check their beneficiary number, and M-Contribuição brings their contribution record to their mobile phone.

The INSS (Social Security) provides technical support for companies without digital resources or facing access difficulties — simply contact your nearest provincial or district delegation. Service branches and customer posts are located across all provinces, including dedicated posts established to bring services closer to markets and industrial zones.

Self-employed workers: the TCP scheme

Don't have an employer? You can also — and in some cases must — register with INSS (Social Security) as a self-employed worker. The process takes place directly between you and the institute, with no intermediary.

There are three requirements:

• Fill out the Identification Form (available at branch offices and on the INSS (Social Security) website);
• Provide an ID card, birth certificate, or personal ID card;
• Provide your business licence or equivalent document, and your NUIT (Tax Identification Number).

The contribution rate for self-employed workers is 7%, covered entirely by the worker. In exchange, self-employed workers access the same essential protections: allowances, pensions, and family benefits. For market traders, independent drivers, and small producers, INSS (Social Security) has signed memorandums with informal sector associations specifically to facilitate mass registration.

It is worth reading the general guide to INSS (Social Security) in Mozambique, which explains how each benefit works and how many months of contributions each requires. And if your goal is to understand when you can retire, the analysis of retirement in Mozambique explains the retirement age and the proposal under discussion in Parliament.

Common mistakes and how to avoid them

The first classic mistake is deducting contributions without registering the employee. Some companies deduct the 3% from the worker but fail to register anyone — the money leaves the payroll and never reaches a beneficiary record. If this is your situation, request your beneficiary number in writing; if you receive no response, submit a complaint to the General Inspectorate of Labour or your local INSS (Social Security) office.

The second mistake is confusing the NUIT with the INSS number. They are distinct systems: the NUIT belongs to the Tax Authority, while the Social Security contributor number belongs to INSS (Social Security). The employer needs both; the worker needs their beneficiary number.

The third is leaving gaps in the contribution record. A single month without a declaration breaks the sequence of contributions — and certain benefits, such as sickness allowance, look at the preceding months. Companies in difficulty should negotiate with INSS (Social Security) before accumulating arrears. Workers who become unemployed should evaluate Voluntary Continuation within the one-year deadline.

And the fourth mistake is assuming that registration "takes care of itself". It does not. The registration only exists when the employer creates it — and the worker is the only one who loses out, watching their right to benefits evaporate month after month.

How Inademy helps you

When you find your next job on the Inademy website, applying is simple and your profile is free. The Inademy Guide brings together practical guides like this one on INSS (Social Security), salaries, contracts, and workers' rights, written for the Mozambican market. If you prefer to be notified, turn on new job alerts via email and WhatsApp to keep track of new opportunities without searching manually.

Where these numbers come from

• INSS (Social Security) — "Taxpayer Rights and Obligations": 15-day deadlines, registration documents, 7% rate (4% + 3%), filing and payment window from the 20th to the 10th, late payment penalties (inss.gov.mz, accessed September 2026).
• INSS (Social Security) — "Registration Requirements" and "TCP Contribution Rate": identification form, ID/licence/NUIT and 7% rate paid by the individual (inss.gov.mz, accessed September 2026).
• INSS (Social Security) — "Voluntary Maintenance in the System": 5 years of registration, 40 months of contributions, application up to 1 year after ceasing activity (inss.gov.mz, accessed September 2026).
• INSS (Social Security) — SISSMO: information system since 2011, worker registration and online declarations, toll-free line 800230230 (inss.gov.mz/sissmo, accessed September 2026).
• Law no. 13/2023 of 25 August (Official Gazette, Series I, no. 165): maternity and paternity protection referred to the mandatory social security scheme.

Frequently asked questions

How long do I have to wait to receive my INSS (Social Security) number?

Your beneficiary number is assigned when your employer pre-registers you and submits the notification letter to INSS (Social Security). In person, the number is usually issued right away or within a few business days; through SISSMO, the company receives the numbers directly on the platform. If weeks have passed without an answer, check with your local branch taking your ID with you.

I am an informal worker — can I register with INSS (Social Security)?

Yes, as a self-employed worker (TCP). You need the Identification Form, an ID document, your business licence (or equivalent document), and your NUIT (Tax Number). The rate is 7%, paid entirely by you, and gives you access to the same protections as the mandatory scheme.

What happens if my employer does not register me?

Your deductions go unrecorded and you lose months of contributions — which later cuts off your access to benefits and pensions. Start by asking your employer for your beneficiary number in writing. If you receive no response, file a complaint with the General Inspectorate of Labour or an INSS (Social Security) branch, bringing your signed employment contract, payslip, and ID document.

Does registering with INSS (Social Security) cost money?

No. Registration for both the company and the worker is free. There is only the monthly contribution of 7% on earnings — 4% paid by the company and 3% deducted from the employee — declared and paid between the 20th and the 10th of the following month.

I changed companies — does my INSS (Social Security) number change?

No. Your beneficiary number stays with you for life. Your new employer registers you under their record, and contributions add up to the same history. Keep your number safe: you will need it to claim benefits and check your records on M-Contribuição.

Can I register on my own, without waiting for the company?

As an employee, registration is the employer's responsibility. What you can do on your own is check: "Meu Número INSS" shows whether you already have an assigned number. If you do not have one, it means the company has not registered you yet — and you will need to ask them to comply.

What is Voluntary Maintenance in the System?

It is the option to continue paying INSS (Social Security) contributions after losing your job so you do not break your month count. It requires at least 5 years of registration and 40 months of contributions, and you must apply within one year of stopping work. Without it, unemployed months will not count.

In summary, what to do today

1. If you are an employee: ask your employer for your INSS (Social Security) beneficiary number and check it on "Meu Número INSS".
2. Check whether your payslip shows the 3% Social Security deduction.
3. If you are a new employer: gather your operating licence, Revenue Model 2 form, NUIT, ID documents, and Official Gazette (Boletim da República), and register your company within 15 days of starting business activity.
4. Pre-register each employee using their ID document and submit the official notification letter with their number to INSS (Social Security).
5. Mark your calendar for the monthly declaration and payment window from the 20th to the 10th, or handle everything on SISSMO with your login details.

Where to go next

Once your registration is sorted, it is worth taking a deeper look: disability and survivor's pensions have their own guide covering who is eligible and how to apply; the article on net vs gross salary shows payroll deductions; and the practical list of workers' rights in Mozambique brings together everything guaranteed under Labour Law 13/2023 in one place.

If you are looking for work, you can find open positions on the platform and apply with a free profile.

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• Driver Salary in Mozambique 2026: Pay Rates & Perks
• Mining Careers in Mozambique: Salaries & Entry Guide

Official source: Law No. 13/2023 (Labour Law) is available as a PDF on the website of Mozambique's Supreme Court (Tribunal Supremo): official text (PDF).