SGI in one minute
SGI is your sickness benefit qualifying income (sjukpenninggrundande inkomst). It is the income level Försäkringskassan uses to calculate income-based benefits like parental benefit (föräldrapenning), sickness benefit, and often VAB. In plain English: if your SGI drops, your future payouts can drop too.
The good news is that SGI protection during parental leave is not complicated once you know when the rules change.
The one-year switch (the part most people miss)
During your child's first year, you have unusually high flexibility. If you are home caring for your baby, your SGI is protected even if you take out zero parental benefit days. This is why some parents save days early on and still keep their SGI intact.
From your child's 1st birthday, the logic changes. If you are fully off work and want to keep your previous SGI, you generally need to withdraw at least five full parental benefit days per week. It is five full days in a week (not just five workdays), and holidays can matter.
This is where people accidentally lose SGI. It often happens when a parent stays home after the first birthday but takes fewer than five days per week to stretch the leave.
The simplest safe pattern
If you want a plan that is easy to follow and hard to mess up, use this default:
- Before the 1st birthday: choose benefit days based mainly on cash flow and how quickly you want to spend your 480-day bank.
- After the 1st birthday: decide whether you are fully off work or partly working.
If you are fully off work, treat five full benefit days per week as your baseline SGI protection habit. You can still choose which benefit level to use, but keep the weekly count safe.
If you are working part-time, the idea is simple: SGI protection comes from covering the time you are not working. Combine your work time and your parental benefit withdrawals so they match the work level your SGI is based on. The mistake to avoid is working less than before and not taking parental benefit for the reduced part, even for a short gap.
Two common traps that cause surprise SGI drops
These are the patterns that usually cause the unpleasant surprises later:
- Quiet unpaid leave: you are home, you are not withdrawing enough benefit days, and you are not working enough either.
- Holidays and breaks: your plan says five days/week, but red days and holidays change the week total and you do not adjust.
There is also a special case people forget: you generally cannot combine parental benefit with vacation in the way you might expect. If you work part-time and pause your plan with vacation, it can affect how your SGI is protected unless the vacation period is handled correctly.
A helpful nuance: parental benefit vs other benefits
Even if your SGI is lowered, your parental benefit can be protected for a period when the child is small. That means some parents do not notice a drop until they need a different benefit (like sickness benefit or VAB), or until they plan leave later when that protection window has passed.
The takeaway is not "be scared of SGI." It is simply: do not let your SGI change by accident. A small planning habit now can prevent a big headache later.
The 30-second self-check
Take your current schedule and ask: after the 1st birthday, does each week clearly add up to enough work and/or enough full parental benefit days to protect SGI? If the answer is "I am not sure," that is your signal to adjust before it becomes expensive.
If you are stretching your days, see the hybrid week guide. If you are deciding how fast to use days overall, read 5 vs 7 days/week.