Hi!
For us the change was really high, especially on the Federal taxes, basically we paid double from one year to the next
If you go to the calculator of the commune where you live, you can easily do this calculation roughly.
Take you net salary (net after AHV, pension etc) and deduct roughly 10k for overall deductions (i.e. sickness, transport, etc). Do this for both of you as singles and then as married and see the difference. You net salary is typically found on your salary statement from your company at year end.
Obviously this is a very rough calculation but for ZH it works out ok to at least identify the difference.
Also, pls check rules in your kanton as some kantons will tax you as married already for whole year you get married in as they consider your status at 31/12, whilst some only start the year after.
Good luck
K