Case 1
- How long is the whole period?
- 4
- How much of it is time off?
- 1
- What is your current monthly gross?
- 4000
3,000.00
Open with these valuesSabbatical Salary Calculator
3,000.00
Result: 3,000.00In a block-model sabbatical you work full hours during the saving phase and none during the leave, but you draw the same reduced salary throughout. Three years of work inside a four-year period is a 75 % quota, so a gross of 4000 becomes 3000 a month — for all four years, leave included.
The numbers at a glance
Held fixed: How long is the whole period? 4.0, How much of it is time off? 1.0.
| What is your current monthly gross? | Result |
|---|---|
| 0.00 | 0.00 |
| 1,000.00 | 750.00 |
| 2,000.00 | 1,500.00 |
| 3,000.00 | 2,250.00 |
| 4,000.00Your value | 3,000.00 |
| 5,000.00 | 3,750.00 |
| 6,000.00 | 4,500.00 |
| 7,000.00 | 5,250.00 |
| 8,000.00 | 6,000.00 |
Worked examples
Case 2
- How long is the whole period?
- 7
- How much of it is time off?
- 1
- What is your current monthly gross?
- 4500
3,857.14
Open with these valuesCase 3
- How long is the whole period?
- 1.5
- How much of it is time off?
- 0.5
- What is your current monthly gross?
- 3000
2,000.00
Open with these valuesHow it's calculated
new gross = gross × (total years − leave years) ÷ total years
- StepEnter the length of the whole arrangement, saving phase plus leave.
- StepEnter how much of it you want off, at least half a year.
- StepEnter the monthly gross you earn now, at full hours.
- ResultRead the reduced gross you draw every month of the period.
What this number means
A block-model sabbatical is a part-time arrangement with the hours stacked unevenly. Over the whole period you agree one quota and draw one reduced salary; the hours behind it are full during the saving phase and zero during the leave. The quota is simply the share of the period you actually work: three working years inside a four-year arrangement is 75 %, and 75 % of a 4000 gross is 3000 a month. You draw that 3000 for all four years, the year off included — that is the point of the model, and the reason it is a salary reduction rather than unpaid leave. The shape of the arrangement decides how deep the cut goes. A year off inside four years costs a quarter of your pay; the same year inside seven costs one seventh, about 14 %. Half a year off inside five costs a tenth. The longer the runway, the gentler the reduction, at the price of committing for longer. This page models the pure form only: full hours while saving, none while off. Real arrangements also allow a reduced saving phase or a leave phase at partial hours, and those quotas do not follow this formula. The figure is gross pay. What lands in your account depends on tax and social contributions, and on your employer approving the arrangement at all — neither is calculated here.
The reduction runs the whole period
The quota applies from the first month of the saving phase to the last month of the leave. You do not earn full pay first and nothing later; you earn the same reduced amount throughout.
A longer period softens the cut
A year off costs 25 % of your pay inside four years but only about 14 % inside seven. Stretching the arrangement is the one lever that makes the same leave cheaper each month.
Only for a full-hours saving phase
The formula assumes you work full hours while saving and none while off. Arrangements with a reduced saving phase or partial leave carry a different quota and this page does not model them.
This is gross pay, not net
Tax and social contributions are not applied here, and neither are pension or insurance effects. Ask your employer for a net projection before you commit.
Commonly misread
During the leave year the salary stops.
It does not. The reduced salary keeps running through the leave — that is what the saving phase paid for in advance.
The quota only applies to the time off.
It applies to the whole period. Three years of work inside four years means 75 % pay for all forty-eight months.
A longer sabbatical always costs more per month.
The cost per month depends on the ratio, not the length. Half a year off inside five years costs 10 % of pay; a full year inside two costs 50 %.
Reference table
| Period and leave | Quota | Gross of 4000 becomes |
|---|---|---|
| 1.5 years, 0.5 off | 66.7 % (2/3) | 2666.67 |
| 2 years, 1 off | 50 % (1/2) | 2000.00 |
| 4 years, 1 off | 75 % (3/4) | 3000.00 |
| 5 years, 0.5 off | 90 % | 3600.00 |
| 5.5 years, 1 off | 81.82 % | 3272.73 |
| 7 years, 1 off | 85.71 % (6/7) | 3428.57 |
Questions
How is the reduced salary calculated?
The quota is the worked share of the whole period: total years minus leave years, divided by total years. The reduced gross is your current gross times that quota. Three working years inside four gives 75 %, so 4000 becomes 3000.
Do I still get paid during the time off?
Yes. The whole point of the block model is that one reduced salary runs across both phases, including the leave. You are effectively pre-funding the leave by working full hours for reduced pay beforehand.
How long can the arrangement run?
That depends on your employer's rules. The regulation this page follows caps the period at seven school years and requires each phase to last at least half a school year.
What if the saving phase is not at full hours?
Then this formula does not apply. A saving phase below full hours produces a lower quota than the simple ratio suggests, and it has to be worked out from the actual hours in each phase.
Is the result net pay?
No. It is gross monthly pay. Tax, social contributions, pension and insurance effects all sit outside the number and can change it substantially.
Sources and last check
Information, not financial advice.