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# Where do I have to indicate the interest from the mortgage on my future principal residence under construction/renovation?

The interest on your mortgage should be indicated on the "Future main residence" form.

First, go to the "Tax situation" form and tick the second box in the "Real estate" category. Then go to the "Future main residence" form and fill in the relevant fields.


![](https://storage.crisp.chat/users/helpdesk/website/1c5fc819171ffd00/capture-decran-2025-02-26-a-15_1s7m6jd.png)


![](https://storage.crisp.chat/users/helpdesk/website/1c5fc819171ffd00/capture-decran-2025-02-26-a-15_3dwbkg.png)