Buy the house now or after the turn of the year for tax purposes?

Hello everyone,

I am in the process of buying a house.
What are the advantages and disadvantages of doing it this year versus next year? My income this year was relatively high, but I think it will be somewhat higher next year.

I have no idea about possible tax deductions.
Maybe I should buy this year to be able to better deduct my investments next year?

Preliminary: Only a tax advisor is allowed to provide tax advice. Since you have no knowledge of the matter, you should consult your tax advisor.

Therefore, just a few brief remarks on the subject.
If it is even a rental property at all, you could of course already claim depreciation and possibly interest proportionally this year, provided that benefits and burdens still transfer this year. In return, you may possibly have rental income.
The normal building depreciation for residential buildings is 2 or 2.5% of the acquisition value and is calculated proportionally (full months). For an acquisition value of a building (year of construction after 1924) of €300,000 x 2% x 1/12 = €333 depreciation.
In the past, there used to be depreciation for modernization expenses, which was fully applied for the year even if the modernization took place only in December. I don't know if that still exists. Major renovation work will probably not be carried out this year anyway.
At a marginal tax rate of 50%, that would be a tax saving of €151.50 in the above example, provided you no longer receive rental income for December. Whether it is really worthwhile to force yourself to buy a house now, I dare to doubt.

Hello,

The house was built in 1852 and only I want to move in...

Regards

then there is no depreciation

For owner-occupied property, all tax benefits are gone. You can only deduct household-related craftsman labor costs. I believe with €6000 labor costs you get back a maximum of €1200. But no guarantee, I’ve only heard about it.

On the subject of taxes, I just remembered that the federal states are gradually increasing the real estate transfer tax from 3.5% to 5%. There may well be federal states that raise it at the turn of the year. You should possibly check whether this applies to your federal state.