How much repayment is advisable for how much net income?

I find this interesting and need to follow up to make sure I understood correctly: You currently have €3000 net available as a family of four, and despite the installment of €1330, you still have €500 left at the end of the month?

How is that possible, I mean, how can there still be relatively that much left for luxuries like vacations, gifts, etc? I'm genuinely interested.

To calculate precisely:

We currently have approximately €3434 available.
€3050 net + €384 child benefit.

3434
- 1330 installment
- 247.5 additional costs (heating, water, electricity, internet)
- 215 (pension, disability insurance, term life insurance)
- 157 property taxes: garbage fee, property tax, building/household/liability/legal protection insurance
- 300 (2 x car insurance, tax, fuel)
- 60 (2x mobile phones)
- 500 groceries (for us and children's items like diapers, etc.)
- 60 miscellaneous

= €564 left over

Not much, I know......
Daycare fees will be approximately €200 according to the table.
That is why my wife will have to go to work.

We still have about €10,000 left from the house construction, which will only be used as a safety net in an emergency.

Thank you! I still think that's good for a single earner with 4 people. Car costs are very low, so no long commute and both cars paid off?! I see potential savings with the phone there but those are minor things. I would be happy if my numbers looked like that in case of an unexpected twin birth... You can also go on vacation for two years in a cheap apartment in Italy instead of all-inclusive in the Canaries... for example. So all good

That is all possible. I have a net income of 3200. From that, the following are deducted: 1500 installment (but 100 euros of that go into the account and could be used for [ST]) 350 additional financing (will be gone in 3 years) 107 electricity 34 water 8 heat pump electricity (not sure if that is correct ...) 137 Riester 460 daycare 100 miscellaneous small items (will be gone in 1 year) 90 my mobile, internet/phone --- about 400 € leftover We pay insurance and property tax annually. So let's generously calculate 700 € per month. My husband earns about 2100 € net. After deducting his costs, 1500 € remain. That means we have about 1200 € in total that we could save/waste.

Here you go.

My wife hardly uses the car since she spends most of the time at home with the children. I only have 6 km to work. Both cars are fully paid off (thank God). I see it the same way with the vacation. Used to be Maldives, Cuba, etc. This summer we want to go to Egypt with the little ones for 10-12 days.

Also due to family tragedies, we tried to finance the house in a way that we could manage it with one salary. Since we both earn quite well, the banks literally laughed at us, and there were really intense discussions... Currently, we have a newborn at home, and I am genuinely glad that we did not finance it the way the banks wanted.

Income before child: approx. €3,500 net each = €7,000
Income with child and wife on parental allowance: approx. €5,300 net
Income with wife working part-time: €5,500

Loan: 30-year fixed interest = €1,550
When I feel like it, I prefer to make extra repayments rather than a higher installment, especially since the interest savings in our case with decreasing interest periods were not huge.

What is "advisable" always depends on the person and situation. There are people who are disciplined and can assess themselves and their expenses/income situation quite well, and there are those (I count myself among them) who often see it a bit too "optimistically". For me, it was therefore important to have €2,000 left after the loan installment. That is enough for us to live well, without making huge leaps.