Last year (2023) I had a B permit and paid taxes at source. I received tax payslips since my salary was more than 120K and I paid them. I also earned an additional side-income of 100K in 2023 but this was a direct transfer so not taxed at source. I declared this and submitted my taxes at the end of September and haven’t heard back anything. Is there any interest accruing for this 100K that I haven’t paid the taxes for yet?
In general, if the provisional taxes highly underestimate the tax I should pay, does that mean I can delay paying the rest until the final assessment?
Already discussed on this forum, you should be able to locate the answer through the search. That being said…
Yes. However, the maturity date (from which interests start to accrue) and the rates are different from one carton to another. Let’s take the example of Zürich:
- Your taxes are due on September 30th of the current tax year (i.e., ZH wanted you to pay all your taxes for 2023 by 30.09.2023)
- Any amount paid before the maturity date is accruing interests in your favour until the maturity date (currently 1% in ZH).
- Any amount short of your final tax bill is accruing interests in favour of the canton (currently 1% in ZH) from the maturity date and up until the final tax bill.
- After the final tax bill, you have 30 days to pay the residual amount. After that a penalty interest is accruing (currently 4.5% in ZH).
Note that this applies only to the cantonal and city taxes. At the federal level you have 30 days to pay your provisional and final tax bills, and a penalty interest also applies after that (currently 4.75%).
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And for those taxed at source, the at source money first goes into that pot. So for OP they’re unlikely to receive a bill/owe money for the federal tax (but that increases the amount they’ll owe for the city/canton tax.
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