Sweden takes another step to strengthen R&D tax incentives: indexation of the R&D deduction cap 

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Leyton Nordics

Sweden has taken another positive step in the ongoing reform of its R&D tax incentive framework. In the Legislative Council referral “Indexering av taket i FoU avdraget”, the Government proposes that the cap for the R&D deduction should be indexed and linked to the development of the Swedish income base amount, inkomstbasbelopp

This proposal may look technical at first sight, but it is important. It means that the maximum available deduction for companies with significant R&D activities would no longer remain fixed in kronor over time. Instead, the cap would adjust automatically as the income base amount develops. 

For companies investing heavily in research and development, this is a welcome and practical improvement. 

What is being proposed? 

The proposal concerns the existing Swedish R&D deduction, FoU avdraget, which reduces employer social security contributions and the general payroll tax for employees working with qualifying research or development. 

Today, the R&D deduction is subject to a fixed monthly cap. Under the new proposal, the total deduction for all R&D employees of one liable employer would instead be capped at 36 income base amounts per calendar month

The relevant income base amount would be the amount defined in the Swedish Social Insurance Code for the calendar year to which the month belongs. 

The proposed change would enter into force on 1 January 2027.

Why this matters 

The key point is simple: the cap would become dynamic instead of static. 

The income base amount is not a company’s income and not an employee’s salary. It is a statutory reference amount set annually in Sweden, mainly reflecting income development. By linking the R&D deduction cap to this amount, the maximum deduction can follow wage development over time. 

For example, if the income base amount for a year were SEK 80 000, the monthly cap would be: 

  • 36 × SEK 80 000 = SEK 2 880 000 

If the income base amount later increased to SEK 85 000, the monthly cap would become: 

  • 36 × SEK 85 000 = SEK 3 060 000 

In practice, this means that companies already reaching the current cap could benefit over time, since the cap would no longer be gradually eroded by wage growth and inflation. 

Companies below the cap may not see an immediate financial effect, but the proposal still improves the structure of the system by making it more future proof. 

Part of a broader reform direction 

This proposal should also be seen in the wider context of Sweden’s R&D tax reform agenda. 

Earlier in 2026, the Government proposed changes to the existing R&D deduction rules, including expanded and simplified definitions of research and development, as well as the removal of the requirement that an employee must work at least 15 hours per month on R&D in order to qualify. 

In addition, the Government has proposed a new R&D tax incentive in the form of a voluntary enhanced cost deduction, amounting to 200 percent of certain salary costs for personnel working with qualifying research or development. 

Taken together, these proposals show a clear direction: Sweden is moving toward a more practical, competitive and internationally relevant R&D tax incentive framework.

A technical change with practical importance 

Indexing the cap may not be the most visible reform, but it addresses a real issue. Fixed thresholds can lose value over time, especially in a context where R&D activities are often salary intensive and wage levels increase. 

By linking the cap to the income base amount, the Government is proposing a mechanism that allows the system to remain relevant without requiring repeated legislative updates. 

This is particularly important for larger R&D intensive companies and groups that are already close to, or limited by, the current cap.

Summary 

The Government’s proposal to index the cap for the R&D deduction is another encouraging step for companies investing in innovation in Sweden. 

The reform would replace a fixed monetary cap with a cap equal to 36 income base amounts per calendar month, allowing the maximum deduction to adjust automatically over time. 

While the proposal is technical, its practical effect is clear. Companies that do not reach the cap may see limited immediate impact, but companies already constrained by the current cap could benefit as the cap grows with income development. 

Together with the broader proposed changes to the R&D deduction and the new 200 percent enhanced cost deduction, this confirms that Sweden’s R&D tax framework is finally moving in a more ambitious and competitive direction. 

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