Reading your Swiss tax assessment and final bill (2025)

Key takeaways

• Two documents arrive and they do different jobs. The assessment decides what you owe; the final bill works out what you still have to pay. The deadline attaches to the assessment.
• Compare the assessment to what you filed, line by line. Differences are normal, are not always explained, and this is the last moment they are cheap to fix.
• Thirty days from notification to object, and an objection reopens the whole year: the office may reset every factor, including against you.
• Most differences are not errors: a deduction capped, a claim without evidence, or foreign income added only to set your rate.
• A calculation or writing error can be corrected for five years, but a deduction you never claimed cannot.

Two documents, two jobs

Document	What it does	What to check
Assessment decision (Veranlagungsverfügung)	Sets your taxable income and wealth, and the tax due	Whether the figures match your return
Final bill (Schlussrechnung)	Applies payments you already made and calculates the balance	Whether every payment you made appears

They may arrive together or separately. Two things vary by canton and both cause the same confusion.

The name. VeranlagungsverfügungVeranlagungsverfügungAssessment decisionFRdécision de taxationITdecisione di tassazioneThe canton's binding decision on what you owe, which may differ from what you filed. Receiving it starts your 30-day objection window.Where you see itArrives by post, often a year or more after you file.Open in the glossary → is the term for direct federal tax and in most cantons; Zurich calls the same document an EinschätzungsentscheidEinschätzungsentscheidAssessment decision (Zurich wording)Zurich's own name for the binding decision setting your taxable income and wealth. The same document the federal law calls a Veranlagungsverfügung, and the same 30-day objection window runs from it.Where you see itThe heading on the decision Zurich sends after it has reviewed your return.Open in the glossary →. Different word, same decision, same 30-day clock.

The number of envelopes. In many cantons the municipal final bill covers cantonal and municipal tax only, and direct federal tax is billed separately. Two envelopes is normal, not a duplicate.

Compare it to what you filed

The assessment may explain why a figure differs from your return, sometimes briefly and in German. Compare the reason with your documents and the applicable rule. Possible explanations include:

• A deduction capped. You claimed more than the cantonal or federal maximum. Correct, and worth knowing for next year.
• A claim without evidence. Disallowed because the supporting document was not attached. Usually recoverable by sending it.
• A rate-determining item added. Foreign property or income that is not taxed here but raises your rate. Surprising the first time, and correct.
• A valuation the office set itself, for an unlisted security or a property.
• A transcription slip, yours or theirs.

An adjustment is not automatically an error, but its calculation and justification still need checking. Use this document checklist to compare the assessment with the information you submitted.

How the final bill is put together

1. Tax due for the year, from the assessment.
2. Minus provisional payments you made during and after the year.
3. Minus tax already withheld at source, if you were taxed at source for part or all of the year.
4. Plus or minus interest, from the general due date.
5. Equals what you pay, or what comes back.

Step 3 confuses people who moved out of tax at source: the source tax is credited here, at assessment, and not on the provisional invoices you received earlier, and without interest. Seeing it appear only now is normal. More in the provisional tax bill.

Step 4 has a date behind it. Every canton sets a general due date (VerfalltagVerfalltagGeneral due dateFRéchéance généraleThe date cantonal and municipal tax formally falls due, 30 September in Zurich, inside the tax year itself. Interest runs from it in both directions, whatever the date printed on your provisional bill.Where you see itNamed on the provisional invoice and on the final bill.Open in the glossary →), and interest is calculated around that date rather than around the date printed on the invoice. What you paid before it earns interest in your favour; what is outstanding after it is charged interest against you. Both are settled in one calculation, which is why a bill can show interest in both directions. In Zurich that date is 30 September of the tax year; check your own canton's.

The final bill also carries its own 30-day payment deadline. That is a different clock from the 30 days to object: one is the time to pay, the other the time to disagree. Paying on time does nothing to protect the objection deadline.

If you disagree

You have 30 days from notification to file an objection (EinspracheEinspracheObjectionFRréclamationITreclamoA formal challenge to an assessment decision, due within 30 days of notification. Miss it and the assessment becomes final in almost all cases.Where you see itThe deadline is printed on the assessment decision itself.Open in the glossary →), in writing, with the authority that issued the assessment. Two things to weigh first.

An objection allows the authority to review all tax factors for the year, including items you did not challenge. After hearing you, it may also change the assessment to your disadvantage. Check the full return and the reasons for your objection. Seek professional advice if the consequences are unclear.

Once the assessment is final, two narrow routes remain and they are not interchangeable.

A calculation or writing error in the decision can be corrected for five years from notification, on your request or by the office itself (DBGDBGThe federal income tax actFRLIFDBundesgesetz über die direkte Bundessteuer: the act that governs federal income tax for the whole country. Almost every federal rule a guide cites comes from here, which is why the abbreviation appears so often beside an article number.Where you see itIn citations, as DBG Art. 33 or similar. French and Italian sources call the same act LIFD.Open in the glossary → Art. 150). That covers a transposed figure, a wrong addition, a number copied into the wrong line. It does not cover a deduction you never claimed or a legal point you would rather have argued.

If the office assessed you at its own discretion

Where you did not file despite being reminded, or did not answer the office's questions, it may assess you at its own dutiful discretion: it estimates your income and wealth rather than reading them off a return, and it is entitled to estimate on the high side.

Objecting to one of these is harder in two specific ways.

• You can only attack it as manifestly incorrect. Not "too high in my view", not "here is a better figure": the estimate has to be wrong on its face. One at the pessimistic end of a plausible range will stand.
• The objection must be reasoned and name its evidence, in the objection itself. An ordinary objection can be a bare sentence supplemented later; this one cannot, and an unreasoned one fails on admission without anyone examining whether the estimate was right.

In practice that means filing the return you never filed, with the documents, as part of the objection, not a letter promising them. The 30 days are the same 30 days.

• Federal tax (direkte Bundessteuer)Same rates everywhere in SwitzerlandCheck itThe only layer that does not depend on where you live
• Cantonal tax (Staatssteuer)Set by your cantonCheck itWhy the same salary costs differently across the border
• Municipal tax (Gemeindesteuer)Set by your municipalityCheck itWhy two neighbouring villages differ

The base is what your return determines; the multipliers are not something you can influence on the form. In most cantons the cantonal and municipal layers (plus church tax where you are liable) are billed together, and the federal layer arrives separately.

Common questions

My assessment does not match my tax return. Is that a mistake?

Often not. The usual causes are a deduction reduced to its legal cap, a claim disallowed for missing evidence, or foreign income added for rate determination only. The assessment normally notes the reason. If it does not and the difference matters, that is what the objection window is for.

My document says Einschätzungsentscheid, not Veranlagungsverfügung. Is it the same thing?

Yes. Some cantons use their own name for the assessment decision, and Zurich is the common example. Both set your taxable income and wealth, and both start the same 30-day objection period.

Sources

The sources below support the tax figures and rules discussed in this guide. Follow the links to check the original guidance and its scope.

1. DBG Art. 132 — objection within 30 days of delivery, federal tax — fedlex.admin.ch
2. DBG Art. 133 — the period starts the day after delivery; late objections only on proven impediment, and then within 30 days of it ending — fedlex.admin.ch
3. DBG Art. 135 para. 1 — on an objection the authority may reset all tax factors and, after hearing the taxpayer, change the assessment to their disadvantage — fedlex.admin.ch
4. StHGStHGThe cantonal tax harmonisation actFRLHIDITLAIDSteuerharmonisierungsgesetz: the act that tells all 26 cantons which taxes they must levy and how the rules must be shaped. It sets the frame; each canton still fixes its own rates and many of its own deduction ceilings inside it.Where you see itIn citations as StHG Art. 13 or similar, usually beside the DBG article covering the same point federally.Open in the glossary → Art. 48 — the same 30-day objection period and the same power to reset every factor, for cantonal and municipal taxes — fedlex.admin.ch
5. DBG Art. 132 para. 3 — a discretionary assessment may be challenged only for manifest incorrectness, and the objection must be reasoned and name its evidence ("Eine Veranlagung nach pflichtgemässem Ermessen kann der Steuerpflichtige nur wegen offensichtlicher Unrichtigkeit anfechten. Die Einsprache ist zu begründen und muss allfällige Beweismittel nennen.") — fedlex.admin.ch
6. DBG Art. 147 — grounds for revision, and its exclusion where the point could have been raised with reasonable care — fedlex.admin.ch
7. DBG Art. 148 — revision within 90 days of discovery and at most ten years after the decision — fedlex.admin.ch
8. DBG Art. 150 — Berichtigung: calculation and writing errors in final decisions corrected within five years of notification, on request or of the authority's own motion — fedlex.admin.ch
9. Canton Zurich, Zürcher Steuerbuch 172.1 — collection of state and municipal taxes: 30 days to pay a final bill, and interest computed around the 30 September due date — zh.ch
10. Canton Zurich, Zürcher Steuerbuch 173.1 — issuing tax bills: every bill must state that it concerns state and municipal taxes and whether it is provisional or final; final bills follow an Einschätzungsentscheid — zh.ch
11. Canton Zurich — tax bills for private individuals: state and municipal tax billed by your municipality, direct federal tax handled separately — zh.ch