Invoices, payments and taxes for consulting, marketing and design

FIZ issues your project invoices and monthly retainers, gathers your expenses, including Google Ads, Meta and Adobe, and prepares your Seg. Social and IVA declarations and submits them with one click from you.

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Projects and monthly retainers: invoices go out on time

Invoice each project in FIZ. FIZ issues monthly retainers, such as consulting or social media management, on the day you choose and emails them to the client.

On an invoice to a client company, state the IRS withholding: 23% for consultants, advertising professionals and designers. The client pays you the total less the withholding and hands it to the State.

Certified invoicing
Marketing consulting, September

Invoice FT 2026/078 · Client company

Amount excluding IVA
1,500.00 €
IVA (23%)
345.00 €
IRS withholding (23%)
−345.00 €
To receive from the client
1,500.00 €

The client company hands the withholding to the State; in IRS, it counts as tax already paid.

Example with sample data

Google Ads, Meta and Adobe: the invoices go into FIZ

Invoices from Google Ads, Meta, Adobe and other foreign suppliers do not appear in e‑Fatura. On purchases for the business, they come without IVA, and the buyer declares the IVA in Portugal: this is autoliquidação (reverse charge).

Forward the invoice to the @fiz.co address FIZ gives you or upload it to FIZ. If you charge IVA, FIZ puts it in the declaration: with full deduction, the balance is 0 €. With the exemption, the IVA stays a cost.

Invoices and bank transactions
Online advertising

Supplier in Ireland · EU

250.00 €
Design software licences

Supplier in Ireland · EU

60.00 €
Total payable to suppliers
310.00 €
IVA - autoliquidação (reverse charge)

In this example: purchases for the business, mainland Portugal, with full IVA deduction rights.

IVA calculated in the declaration (23%)
71.30 €
Deductible IVA in this example
71.30 €
IVA payable on these purchases
0.00 €

FIZ includes these purchases in the periodic declaration, even when the balance is 0 €. With partial or no deduction, some IVA is payable.

Example with sample data

At the end of the quarter: the declarations are ready

FIZ calculates your Seg. Social contribution from your invoices, prepares the quarterly declaration and submits it with one click from you.

If you charge IVA, FIZ does the same with the periodic IVA declaration.

Segurança Social for the self-employedIVA declaration for the self-employed
Seg. Social quarterly declaration

July to September (3 months)

Services (3 months): 70% of 6,000 €
4,200 €
Monthly base: one third
1,400 €
Monthly contribution: 21.4%
300 €
Periodic IVA declaration

July to September (3 months)

IVA on sales
1,380.00 €
Deductible IVA
−138.00 €
IVA due
1,242.00 €
Example with sample data

Start using FIZ today.

Don’t wait for the quarter or another software subscription to end: FIZ imports invoices, customers and products from Portal das Finanças, SAF‑T, Excel or CSV and includes the invoices in your declarations.

A woman working on a laptop at a table at home
From Portal das Finanças to FIZ

A free month for you and one for your invitee

Share your invitation link with anyone who does not use FIZ yet. When your invitee signs up and issues their first invoice in FIZ, you each get a free month on a paid plan.

Your free months add up with no limit and do not expire.

To invite someone, all you need is a FIZ account connected to AT.

Two colleagues sharing an invitation on a phone
You1 free monthfor each invitee who issues their first invoice
Your invitee1 free monthwhen they issue their first invoice

Choose a plan for your business

Frequently asked questions about consulting, marketing and design

What is the CAE code for a consultant or a marketing agency?

In CAE-Rev.4, in force since 2025, business consulting uses 70200, «Atividades de consultoria para os negócios e outra consultoria para a gestão». Advertising agencies have 73110, public relations and communication 73300, and graphic design 74120.

In CAE-Rev.3, they were 70220, 73110, 70210 and 74100. The same code works for the self-employed and for companies.

Decree-Law 9/2025 (CAE-Rev.4) (Opens in a new window)Decree-Law 381/2007 (CAE-Rev.3) (Opens in a new window)

Does a self-employed consultant or designer charge IVA?

Yes, unless exempt: 23% on services, on the mainland. If you invoiced up to 15,000 € in the previous year, or expect no more than that in the year you start, you can invoice without IVA; then the IVA on what you buy for the business stays a cost.

If you pass 18,750 € in the current year, you lose the exemption and charge IVA from that moment.

IVA Code, art. 18 (Opens in a new window)IVA Code, art. 53 (Opens in a new window)art. 58 (Opens in a new window)

Consultant on recibos verdes: which IRS coefficient applies?

With code 1320, consultants, 1333, advertising professionals, or 1336, designers, from the IRS activity table, the coefficient is 0.75: 75% of what you invoice counts as income. With 30,000 € in services, IRS is worked out on 22,500 €. Other services, outside the table, have the coefficient 0.35.

To avoid paying more IRS than you need to, business expenses need to reach 15% of what you invoice for services. Business invoices on e‑Fatura, the rent for your premises and the salaries you pay count, plus a fixed amount the law already allows for, or your Seg. Social contributions if they are higher. If the total is below 15%, the difference is added to your taxable income. FIZ shows how much is left to reach 15%.

In the year you open your activity, the services coefficient is reduced by 50%, and the next year by 25%, if in those years you receive no salary or pension and have not closed an activity in the previous five years.

FIZ automatically includes the invoices you issue in Anexo B of the IRS declaration.

IRS Code, art. 28 (Opens in a new window)art. 31 (Opens in a new window)IRS activity table (Opens in a new window)

What withholding applies to a consultant or designer?

A client company with organised accounts withholds 23% IRS on invoices from the professions in the IRS table, such as consultants, advertising professionals and designers; on other services, 11.5%. The withholding is worked out on the amount without IVA, at payment, and counts in IRS as tax already paid.

If you invoiced less than 15,000 € last year and expect to stay below that this year, you can state the exemption on the invoice. In FIZ, enter the withholding on the invoice: the PDF shows the total to pay after withholding.

IRS Code, art. 101 (Opens in a new window)art. 101‑B (Opens in a new window)

How is Seg. Social worked out for a self-employed consultant?

Under the simplified regime, Seg. Social counts 70% of services, excluding IVA, and the monthly contribution base is one third of that quarterly amount. The contribution is 21.4% of that base. If this is your first time as self-employed, you pay no contributions for 12 months.

FIZ calculates the contribution from your invoices, prepares the quarterly declaration and submits it with one click from you.

Contributions Code, art. 162 (Opens in a new window)art. 168 (Opens in a new window)

How do Google Ads, Meta and Adobe invoices get into FIZ?

They stay outside e‑Fatura: forward them to the @fiz.co address FIZ gives you or upload them to FIZ. FIZ reads the supplier, the date and the amounts.

On these purchases for the business, the buyer declares the IVA: this is autoliquidação. Whoever charges IVA enters the IVA due and the deductible IVA: with full deduction, the balance is 0 €. With the IVA exemption, the IVA on these purchases stays a cost.

Can I invoice monthly retainers automatically?

Yes. Set up a retainer invoice once, such as consulting or campaign management: FIZ issues it on the set date, emails it to the client and reports it to the AT.

You issue an invoice for every project or service, or for every month of a retainer. A simplified invoice works for services up to 100 €; with the IVA exemption, with no limit.

IVA Code, art. 29 (Opens in a new window)art. 7 (Opens in a new window)art. 40 (Opens in a new window)

And when I invoice customers outside Portugal?

To a company in another EU country with a valid IVA number in VIES, the EU register of these numbers, the invoice carries no Portuguese IVA and states «IVA - autoliquidação», and the sale goes into the recapitulative declaration, the list of sales to companies in other EU countries. To a company outside the EU, the invoice also carries no Portuguese IVA.

If you charge IVA, FIZ prepares the recapitulative declaration with the periodic one.

IVA Code, art. 6 (Opens in a new window)art. 36 (Opens in a new window)

What changes when you have an agency or a consultancy?

The CAE, IVA and invoicing rules stay the same. The company pays IRC on its profit and keeps organised accounts, with a certified accountant. In the simplified IRC regime, with turnover up to 200,000 € and the other legal conditions, consulting counts at 75% and other services at 10%.

In FIZ, the company’s certified accountant confirms the IVA declaration with one click and FIZ submits it to the AT.

IRC Code, art. 86‑A (Opens in a new window)art. 86‑B (Opens in a new window)IRC Code, art. 123 (Opens in a new window)OCC Statute, art. 10 (Opens in a new window)

Checked on 15 October 2026

IRS declaration

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