We are planning a low fixed rate and want to pay off a lot via special repayments. For our current expenses, we only need one income and can put my salary aside. We are thus able to make the 5% special repayment.
We have no children, no other financial obligations, and the cars are still in good shape.
What will you do in 15 years when you have to renegotiate but the interest rate has tripled? Will you still be able to manage the rate then?
That would be too much outstanding debt for me...
Never planned to have children? Special repayment is great – but few actually do it. Especially not in the first few years...
And why don’t you just pay a higher rate immediately? Exactly, because it could be tight – once you own a house, a lot of money just "goes away" like that.
But it's not my problem, I just come from the industry and know how many plan it and how few actually do it...
I’m not accusing anyone of anything, but one should plan realistically. I am sure in the first 3-4 years no special repayment will be made.
The arguments from are valid – you should think it over.
But – many roads lead to Rome. WE are doing it similar to how you have planned. We agreed on the lowest possible repayment rate. Regardless of that, we have calculated how much we would have to pay to reach a 6% annuity. The difference is nicely parked in a daily allowance account and then used at the end of the year as a special repayment. This way, a potential problem with extension and higher interest rate is also solved, since we end up with the same amount that we would have had with a direct 6% annuity. Sure, you might save a few euros with direct repayment due to compound interest effect. We generously add that amount to the special repayment. The reason for this is relatively simple: we wanted to remain as financially flexible as possible. We did not want to get into trouble someday when, in addition to normal costs and special costs, additional, unplanned, and sudden costs arise. Or if suddenly significantly less income is available in the meantime.
By the way, the KfW loan will be paid off after 10 years with a then fully accumulated home savings contract. The rate that becomes free will be used for further special repayments.
I can’t say much about how viable your concept is, as I don’t have an overview of your income, expenses, etc. However, this concept works – under ONE condition: CONSISTENCY. You must consistently make your special repayments in the planned amount. Of course, there can be occasional outliers that should then be balanced out later.
But please consider the hints given here regarding planned/unplanned children as well as proper planning. Especially children could completely throw your concept overboard (we waited with building until this planning was completed).