France to Switzerland Money Checklist: Salary, Tax, Pension, and Retirement Questions to Review

If you live in France and work in Switzerland, your money life can
feel like a set of separate files that never quite connect.

Your salary may arrive in Swiss francs. Your rent, household
spending, insurance, and everyday life may be in euros. Your Swiss
payslip shows deductions, but your French income declaration still
matters. Your pension rights may be building through Swiss AVS and LPP
while your French retirement record sits somewhere else. If you have
savings, insurance, or retirement accounts in France, those may be
managed in a third set of documents again.

The challenge is not only that the rules are complex. It is that the
information is fragmented.

This checklist is designed to help France to Switzerland frontaliers
organize the main questions before speaking with a qualified tax,
pension, or financial professional. It does not tell you what choice to
make. It helps you collect the right facts so the conversation starts
from a clearer picture.

Important note: This article is for educational and
organizational purposes only. It is not tax, pension, financial, legal,
or investment advice. Cross-border outcomes depend on your canton of
employment, French residence, household situation, work pattern, treaty
framework, insurance affiliation, and personal facts. Always check your
situation with a qualified professional.

Start with your
France to Switzerland profile

Before you review tax, salary, or pension questions, write down the
facts that define your cross-border situation.

Start with:

• Your French département of residence.
• Your Swiss canton of employment.
• Whether you work in Geneva or in one of the cantons covered by the
  1983 frontier-worker accord, such as Vaud, Valais, Neuchâtel, Jura,
  Berne, Bâle-Ville, Bâle-Campagne, or Soleure.
• Your permit type and employment start date.
• Your household situation: spouse or partner, dependents, and whether
  household income is earned in France, Switzerland, or elsewhere.
• Your usual weekly work pattern, including days worked in Switzerland
  and days worked from France.

These details matter because the word frontalier is not
enough on its own. Two people can both live in France and work in
Switzerland but still have different tax, withholding, telework, and
declaration questions.

Question to bring to an advisor: Which treaty or
frontier-worker framework applies to my exact canton, residence, start
date, and work pattern?

Salary, currency, and cash
flow

Many frontaliers earn income in Swiss francs and spend most of their
household budget in euros. That creates a practical cash-flow question
before it becomes an investment question.

Review:

• How much of your income is paid in CHF.
• Which expenses are paid in EUR.
• How often you convert CHF to EUR.
• Which bank, transfer service, or exchange route you use.
• Whether you know the spread or fee on your usual transfer.
• Whether large commitments, such as mortgage payments, rent, tuition,
  insurance, or family support, are in a different currency from your
  income.

A small transfer spread can feel invisible month to month, but it can
become meaningful over years. The same is true for exchange-rate
movement. The point is not to predict currency markets. The point is to
know how exposed your monthly life and long-term savings are to CHF/EUR
changes.

Question to bring to an advisor: How should I think
about CHF income and EUR spending when planning cash reserves, large
expenses, and retirement timing?

Tax-at-source and French
declaration

Your Swiss payslip may show tax or social deductions, but that does
not automatically mean your full French-side tax picture is
complete.

Review:

• Whether Swiss income tax is withheld at source in your canton and
  situation.
• Whether your income is taxed mainly in France under the applicable
  frontier-worker framework.
• Whether your French declaration includes your Swiss salary
  correctly.
• Whether the correct foreign-income forms or annexes were used, such
  as the relevant 2047 or Swiss-income reporting forms where
  applicable.
• Whether a tax credit or effective-rate mechanism affects your other
  French income.
• Which CHF/EUR conversion rate was used for the declaration.

France-resident taxpayers generally need to declare worldwide income.
The way double taxation is avoided depends on the applicable framework,
but the Swiss salary often still appears in the French declaration. That
can matter even when tax was already withheld in Switzerland.

Question to bring to an advisor: Does my French
declaration reflect my Swiss salary correctly, including the correct
conversion method, tax credit treatment, and any impact on other French
income?

Telework days and
employer attestations

Telework can affect both tax and social-security analysis, and the
two thresholds are not the same thing.

For France to Switzerland frontaliers, the 2026 framework includes a
tax telework threshold that should be tracked separately from the
social-security telework threshold under the relevant European or
Swiss-linked arrangements. The practical lesson is simple: do not rely
on memory.

Review:

• How many days you worked from France during the year.
• Whether your employer tracks those days.
• Whether you have, or can request, an employer attestation.
• Whether travel days, partial days, or exceptional remote days are
  counted clearly.
• Whether your social-security affiliation analysis uses the same or a
  different percentage from your tax analysis.

Question to bring to an advisor: Are my telework
days documented in a way that supports both the tax and social-security
treatment of my situation?

Health insurance and
social security

Health insurance is one of the highest-impact choices for many new
frontaliers. Depending on your situation, you may need to review the
droit d’option between Swiss LAMal and the French CMU/PUMA
route.

Review:

• Which health-insurance route you selected.
• When you selected it.
• Whether you have proof of the election.
• Whether the election is still appropriate for your household.
• Which social-security contributions are being deducted from salary
  or paid in France.
• Whether family members are covered correctly.

For new frontaliers, timing matters. The choice is generally made
within a limited window after starting Swiss employment, and it may be
difficult to change later unless a qualifying event creates a new right
of option.

Question to bring to an advisor: Is my
health-insurance and social-security affiliation documented correctly,
and does it still match my household situation?

LPP and Swiss pension
documents

If you work in Switzerland, your Swiss occupational pension, often
called Pillar 2 or LPP, can become one of your largest retirement
assets. But it may not appear in your French-side financial planning
unless you bring it into the picture.

Review your latest LPP statement for:

• Accumulated retirement capital.
• Insured salary.
• Employee and employer contributions.
• Projected benefits.
• Death and disability coverage.
• Buy-in room, if shown.
• Vesting or portability rules if you leave your employer or stop
  working in Switzerland.

Do not review the LPP statement only as a Swiss document. Review it
next to your French pension record, savings, and retirement plan.
Otherwise, it is easy to underestimate how much of your long-term
picture sits in Switzerland.

Question to bring to an advisor: How does my LPP
capital fit into my overall retirement plan if I expect to live in
France, Switzerland, or another country later?

French retirement and
long-term savings

Your Swiss rights are only one part of the retirement picture. You
may also have French pension rights, French complementary pension
points, an assurance-vie, a PER, bank savings, brokerage accounts,
property, or other household assets.

Review:

• Your French relevé de carrière.
• Any French complementary pension records.
• Your assurance-vie contract fees, allocation, beneficiary clause,
  and tax age.
• Any PER contributions and deduction limits.
• Other investment or savings accounts.
• Expected retirement country and currency needs.

The key question is not simply “how much will I receive from
Switzerland?” It is “what does the combined France plus Switzerland
picture look like?”

Question to bring to an advisor: If I place my
French and Swiss pension rights side by side, where are the gaps,
overlaps, or timing risks?

Advisor questions to bring

A good advisor conversation is easier when your questions are
specific. Consider bringing a short list like this:

1. Which France to Switzerland tax framework applies to my canton and
   residence?
2. Does my French declaration treat my Swiss income correctly?
3. Are my telework days documented properly for both tax and social
   security?
4. Is my health-insurance route still appropriate for my
   household?
5. What should I monitor on my LPP statement each year?
6. How should I compare Swiss Pillar 2, any Pillar 3a eligibility, a
   French PER, and assurance-vie in my situation?
7. What currency exposure should I account for in monthly cash flow and
   retirement planning?
8. What documents should I update before next year’s declaration?
9. Which decisions are urgent, and which only need monitoring?
10. What should I not decide without more detailed professional
    review?

The last question is important. Cross-border planning often creates
pressure to act quickly. Sometimes the most valuable advice is knowing
what not to change until the facts are clearer.

Documents to gather

Before the appointment, gather as many of these as you can:

• Recent Swiss payslips.
• Employment contract or employer summary.
• Employer telework attestation or annual telework count.
• French income declaration and most recent tax notice.
• Swiss income reporting forms or annexes used in your French
  declaration.
• Relevant frontier-worker form, such as 2041-AS where
  applicable.
• Latest LPP statement.
• AVS or Swiss first-pillar record or projection if available.
• French relevé de carrière.
• Health-insurance documents: LAMal, CMU/PUMA, affiliation proof, and
  premiums.
• CHF/EUR transfer statements or bank export.
• Assurance-vie, PER, bank, or investment account summaries.
• Any prior advisor notes, tax-office correspondence, or pension-fund
  letters.

If you cannot find one of these documents, that is also useful
information. It shows where your picture is incomplete.

Where KaFi fits

KaFi is being built for
people whose financial lives cross borders and do not fit neatly inside
one country’s banking, tax, or pension system.

For France to Switzerland frontaliers, the first value is clarity
before advice: gathering salary, tax, pension, insurance, savings, and
currency information in a format that makes the next professional
conversation more focused.

KaFi starts with information you already control, such as statements,
exports, payslips, and tax documents. No bank connection is required for
the first step.

If you want to follow the France to Switzerland version of the
product, you can join the
KaFi private beta or read the broader Cross-Border Financial
Blind Spots Checklist.

Sources and references

For current and authoritative guidance, consult official tax,
pension, and social-security sources, including the French tax portal,
relevant France to Switzerland tax agreements and amendments, Swiss
cantonal tax guidance, Swiss pension-fund documentation, OFAS/BSV
resources for occupational pensions, AVS compensation offices,
info-retraite.fr, and official guidance on LAMal, CMU/PUMA, and
frontier-worker health-insurance choices.