Why the fixed self-salary works
Swiss fixed costs don't flex: rent, premiums and insurance arrive monthly regardless. A self-salary set at your conservative baseline turns chaos into a normal salaried budget – everything above it is buffer, not lifestyle.
The Swiss-specific reserves
Self-employed must reserve for AHV contributions (roughly 10% of net self-employment income), taxes (no employer withholding!) and their own pillar 3a (up to 20% of net income without a pension fund). These three reserves come out of the buffer account first.
Make the buffer visible
Track the buffer account's months-of-fixed-costs coverage as your key number.
Track these costs in your own budget: create your free Swiss budget in BudgetHub – in English, with Swiss categories built in.
Budget on the floor, not the average
The core technique for freelancers, commission-based and seasonal earners: build the monthly budget on your lowest realistic month over the past year, not the average. Everything above that floor is treated as inflow to be allocated, not as spending money.
This inverts the usual mistake. Budgeting on an average means overspending in weak months and treating strong months as normal – which is precisely how good years end without savings.
Determining the floor takes one evening with last year's bank statements. If the year was atypical, use the second-lowest month rather than the absolute minimum, so that the budget is demanding but not fictional.
The buffer account that smooths the year
Every payment received goes first into a separate account, from which a fixed «salary» is transferred to the everyday account on the same date each month. You are, in effect, employing yourself on a stable income.
This single mechanism removes most of the psychological difficulty of irregular income: the everyday account behaves like a salaried person's, while the volatility is absorbed one level up. It also makes it obvious when the buffer is depleting, which is information you want early rather than late.
Target buffer size is higher than for employees: six months of fixed costs rather than three, because both the income interruption and its duration are less predictable.
Taxes, AHV and the self-employment traps
Self-employed people pay their own AHV contributions and are not covered by unemployment insurance – two facts that must be provisioned rather than discovered. Set aside a percentage of every inflow for taxes and social contributions immediately, in a separate account, before the money feels available.
Occupational pension is voluntary for many self-employed people, which makes pillar 3a substantially more important – and the annual maximum is higher for those without a pension fund, a benefit frequently unused.
The recurring trap is the good first year: taxes and contributions on a strong year fall due in the following one, which may be weaker. Provisioning by percentage rather than by last year's absolute figure is what prevents this from becoming a crisis.