No, aero, not like that. If you have to choose because you have extra money, I would first make the special repayment before parking it in ETFs or even in fixed-term deposits at zero and before buying a new car.
So, we were never below 15 with our reserves, that is necessary if you own a house.
Well... It doesn't necessarily have to be that way. You can also take out a consumer loan if you need more but are not liquid. But it's true, it wouldn't be bad to have it. I also feel quite good with my reserve of 10,000-20,000. The house was completely renovated 4 years ago, so that's fine. In 20 years, I would actually like to have double that, because then the likelihood of something coming up is greater. Maybe there will even be a little interest on the savings account again by then ^^
With us, our main loan is also primarily repaid early with 5% at the beginning of the year, so that it is gone at the earliest in 2025, but at the latest when the fixed interest period expires in 2028. In addition, we still save in ETFs. Depending on what consumer expenses are still necessary and how the prices are, we will repay the then KFW70 loan in 2023 or we will have to extend it again.
And as a PS: I am following the strategy of reducing the number of building blocks after the "initial period" in the house to regain financial flexibility. So I will not just make general extra repayments where I pay the highest interest, but rather specifically "take care" of one after the other.
Having more left over monthly sounds great at first glance, but if, in addition to the current extra repayment amount, the additional capital from the freed-up installment and maybe some salary increases come along, then eventually you run out of the possibility for extra repayments or installment increases, right? I have also always thought about whether to pay off my KFW loan first, but somehow I didn't find it logical to repay the cheap loan.