Giving your CPF at the supermarket has become routine, but in 2026 the rule will change: see how your data is used and when it is worth informing.

Written by Caio Aviz

Published on 12/04/2026 at 23:43

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Common practice throughout Brazil can guarantee advantages, but requires attention to the use of personal data and the rules of the LGPD

Providing the CPF when shopping at supermarkets has become a habit among Brazilians.

In 2026, experts emphasize the need to understand how this data is used.

The consumer needs to understand their rights and maintain control over their information.

ARTICLE CONTINUES BELOW

Understand why the CPF is requested during purchases

Supermarkets request the CPF mainly to identify the consumer.

This information also allows for the integration of loyalty systems.

The customer gains access to benefits offered by the establishments.

Among the main uses, the following stand out:

Participation in points programs
Access to exclusive discounts
Issuance of invoices linked to the CPF

Providing the data generates direct advantages.

The establishments, in turn, better organize their internal records.

Direct benefits of providing the CPF

State tax programs have offered benefits to consumers for years.

The CPF on the invoice can generate practical returns in daily life.

Among the main gains, the following stand out:

Accumulation of points in loyalty programs
Receiving personalized offers
Tracking purchase history

This practice has become established in the daily lives of Brazilians.

The benefits vary according to the state and the program adopted.

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Data usage requires consumer attention

The use of the CPF involves sensitive personal data.

The information can be used by companies for different purposes.

Among them, the following stand out:

Creation of consumer profiles
Targeted advertising
Feeding databases

Understanding this usage becomes essential.

The ANPD emphasizes the obligation of transparency in this process.

What the law says about the use of the CPF

Brazilian legislation establishes clear rules for data protection.

The LGPD, in effect since 2020, defines obligations for companies.

Among them, the following stand out:

Inform how the data is used
Ensure the security of the information
Allow access and correction of data by the consumer

The consumer can refuse to provide the CPF.

The purchase, however, cannot be denied.

This right is guaranteed by consumer protection regulations.

When providing the CPF may be worthwhile

Providing the CPF can be advantageous in some situations.

The decision depends on the clarity of the benefits offered.

Among the main scenarios, the following stand out:

Programs with well-defined advantages
Companies with transparent privacy policies
Prior knowledge about the use of data

Questions about the use of information justify refusal.

Control of the data remains with the consumer.

How to protect yourself when providing your data

Some actions help avoid problems in daily life.

The consumer can enhance their security with simple measures.

Among them, the following stand out:

Check the establishment’s privacy policy
Avoid providing data unnecessarily
Monitor transactions linked to the CPF

Control of the information becomes more efficient with these practices.

The risks related to misuse are reduced.

In light of this, considering the benefits and necessary precautions, is it always worth providing the CPF during purchases or is it better to evaluate each situation with caution?

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Giving your CPF at the supermarket has become routine, but in 2026 the rule will change: see how your data is used and when it is worth informing.

Common practice throughout Brazil can guarantee advantages, but requires attention to the use of personal data and the rules of the LGPD

Understand why the CPF is requested during purchases

Direct benefits of providing the CPF

Data usage requires consumer attention

What the law says about the use of the CPF

When providing the CPF may be worthwhile

How to protect yourself when providing your data

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Giving your CPF at the supermarket has become routine, but in 2026 the rule will change: see how your data is used and when it is worth informing.

Common practice throughout Brazil can guarantee advantages, but requires attention to the use of personal data and the rules of the LGPD

Understand why the CPF is requested during purchases

Direct benefits of providing the CPF

Data usage requires consumer attention

What the law says about the use of the CPF

When providing the CPF may be worthwhile

How to protect yourself when providing your data

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In Botswana, a salt flat of up to 16,000 km² that was once an African megalake spends months as an absolute white desert, but during the rainy season it transforms into a shallow sea that reappears from nowhere and can be seen from space in the middle of southern Africa.

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About 6,000 residents live concentrated along a single street nearly 9 km long in the interior of Poland, with houses forming a continuous row and narrow agricultural strips emerging behind them, creating one of the most unusual rural patterns in Europe.

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