The individual income tax ranges from 37.07% to 49.50%. Income tax is calculated according to progressive rates. Multiple additional factors may impact overall rates such as the household status and the number of children.

• Holiday Allowance - 8.0%
• Unemployment tax - 2.70%-7.7%
• WGA and ZW - Disability and Sickness social security - 1.52%
• ZVW - Healthcare contribution - 6.75%
• Disability - 7.05%
• Child care - 0.50%
• Severance - 1.5%
• Contract Labour Service - EUR 15.00
• Worker Insurance - EUR 112.00

• Voluntarily by the employee
• By mutual agreement
• Unilaterally by the employer based on:
  Probation period
  Objective grounds (economic reasons, unable to work for more than two years, etc.)
  Disciplinary dismissal
• By the expiration of the contract

• Underperformance does not automatically/immediately qualify as a justified reason for termination;
• Underperformance needs to be adequately addressed by the employer, meaning that there should be a proper performance file in place;
• An appropriate file of performance means a substantiated file in which (among other things) the underperformance is made clear to the employee. Suitable measures need to have been taken by the employer to make it possible for the employee to be a better performer, proper support needs to have been given by the employer, etc.

The minimum notice period is one month and will be increased according to the length of the employment. 

• Up to 5 years of employment - 1 month notice
• 5 - 10 years of employment - 2 months notice
• 10 - 15 years of employment - 3 months notice
• 15+ years of employment - 4 months notice

• 0-2 years relationship - 1 month severance
• 2 to 4-year relationship - 2 months severance
• more than 4 years - will depend on other parameters

The Netherlands celebrates 11 national and many regional holidays based on the location of the employee. 

National public holidays include:

1. New Year’s Day
2. Good Friday
3. Easter Sunday
4. Easter Monday 
5. King’s Day
6. Liberation Day
7. Ascension Day
8. Whit Sunday 
9. Whit Monday
10. Christmas Day
11. Boxing Day

Contracts must be in Dutch and can be bilingual. They must be in writing and signed by both parties. Fixed contract can only be for three years.

A contract must include: 

• Name
• Start date
• Length of the employment
• Job description
• Termination conditions

Employees hired using Deel have a probation period of 30 days, which you can extend up to 180 days for managerial positions and specialized technical roles. As of January 2022, it's Deel company policy to include probation periods in all employment contracts moving forward.

Probation periods help an employer and the employee ensure they're a hiring match, allowing a company to quickly decide if it's a fit and the employee to see if the job aligns with their career goals.