---
slug: percentual-acrescimo-contrato
lang: en
titulo: The limit for increases or reductions in contracts without new bidding is 50% of the updated initial value
resposta: The maximum limit for increases or reductions to the contracted object without new bidding is 50% of the updated initial contract value, provided there is a contractual clause.
curto: 50% of initial value
tema: Energy contracts
revisada: 2026-10-04
proxima: 2027-04-04
---

## Data
| Who | Criterion | Consequence | Source | Data of the data |
|---|---|---|---|---|
| Federal public bodies | Contracts resulting from exemption from bidding due to health emergency (Law 13.979/2020) | Mandatory acceptance of increases or reductions to the contracted object, up to 50% of the updated initial contract value, provided there is a contractual clause | Law 13.979/2020, art. 4º-I | 06/02/2020 (redaction of Law 14.035/2020) |

Data consulted on 04/10/2026.

## Basis
- [Law n.º 13.979/2020 (Planalto, in Portuguese)](https://www.planalto.gov.br/ccivil_03/_ato2019-2022/2020/lei/l13979.htm): art. 4º-I allows contracts resulting from exemption from bidding due to health emergency to include a clause obliging the contractor to accept increases or reductions of up to 50% of the updated initial contract value.
- [Law n.º 14.300/2022 (Planalto, in Portuguese)](https://www.planalto.gov.br/ccivil_03/_ato2019-2022/2022/lei/l14300.htm): does not address percentage limits for increases/reductions in contracts.

## How it applies
The rule applies exclusively to contracts signed during the health emergency due to coronavirus (Law 13.979/2020), provided that:
1. The exemption from bidding occurred under this law;
2. The clause accepting increases/reductions is expressly stated in the contract;
3. The limit is calculated based on the updated initial contract value.

## Limits
- Restricted applicability: The rule only applies to contracts resulting from Law 13.979/2020 (health emergency). Other public contracts follow the limits of Law 8.666/1993 (25% for works and services, 50% for purchases, with exceptions).
- Mandatory contractual provision: The clause accepting increases/reductions must be in the original contract and cannot be added later.
- Updated initial value: The 50% calculation must consider the contract value adjusted for inflation up to the date of the change.
- End of emergency: The rule ceases to be valid after the declared emergency situation ends (Legislative Decree n.º 6/2020).
- Subsequent changes: Verify if Law 13.979/2020 or related regulations have been modified after 2020, especially regarding art. 4º-I.

---
*Data consulted on 04/10/2026.*