Two ways to calculate VAT due
Swiss VAT-registered businesses may report using the effective method (standard) or the flat-rate method (Saldosteuersatz / taux forfaitaire). The choice affects how much you pay the FTA, administrative effort and input tax recovery on purchases.
The effective method reflects reality: output VAT minus input VAT on purchases and investments. The flat-rate method applies a sector percentage to taxable turnover; input tax is already built into the rate — no separate deduction.
Choose at FTA registration; the decision binds for at least three tax periods. This guide maps common sectors with indicative 2024 flat rates and typical recommendations — always validate with your own figures.
Effective method (actual reporting)
Default for businesses with investments, significant purchases or complex VAT rates. Mandatory above CHF 5,005,000 turnover (incl. VAT) or CHF 103,000 annual tax liability.
- Declare VAT collected on sales and deduct VAT paid on supplier invoices, imports and foreign services (input tax)
- Usually quarterly reporting; maximum transparency in FTA audits
- Advantageous when deductible purchases exceed ~30–40% of turnover or you have capex (machinery, vehicles, software)
- Requires orderly VAT bookkeeping on every incoming invoice
Flat-rate method (Saldosteuersatz)
Designed for SMEs with few taxable purchases and low admin burden. The FTA assigns one or two flat rates based on main (and secondary) activity codes.
- VAT due ≈ taxable turnover × sector flat rate (e.g. 6.1% consulting, 0.6% food retail)
- No separate input tax deduction on purchases — included in the flat rate
- Semi-annual reporting (twice per year); simpler accounts
- Requirements: turnover ≤ CHF 5,005,000 (incl. VAT) and annual tax ≤ CHF 103,000; FTA authorisation required
Side-by-side comparison
Before the sector table, compare the two approaches:
| Aspect | Effective | Flat-rate |
|---|---|---|
| Calculation base | Output VAT − input VAT | Flat % on turnover |
| Input tax | Full recovery on taxable purchases | Not deductible (in flat rate) |
| Reporting frequency | Quarterly (standard) | Semi-annual |
| Bookkeeping | More demanding | Highly simplified |
| Method change | FTA request by 28 Feb, 3-year lock-in | Same |
| Above threshold | Mandatory above CHF 5,005,000 turnover | Not available above threshold |
Which method by economic sector
Indicative guide for frequent Swiss activities. Flat-rate = often suitable with few VAT purchases; Effective = better with high costs/imports; Evaluate = simulate on 12 months of data.
Indicative flat rates (2024 reform). Confirm activity code and assigned rate on the FTA portal or Info VAT 19.
| Sector | Flat rate | Recommendation | Rationale |
|---|---|---|---|
| Consulting, legal, architecture, engineering | 6.1% | Flat-rate | Few taxable purchases; mainly labour. Flat-rate simplifies without major equipment capex. |
| Food retail | 0.6% | Flat-rate | Very low flat rate; tight margins. Effective only with heavy cold-chain investment. |
| Restaurants (on-premise food & drinks) | 5.1% | Evaluate | Ingredients and beverages carry relevant input tax — always simulate effective vs 5.1% on turnover. |
| Construction, installations, crafts | 4.3% | Evaluate | Materials, subcontractors and equipment rental with VAT: effective often wins above ~35% taxable costs. |
| Hotels and accommodation | 3.5% | Flat-rate | Cost structure suits flat rate if capex already depreciated; recent renovations may favour temporary effective. |
| IT, software development, SaaS | 5.9% | Effective | Cloud, licences, hardware and subcontractors with VAT; input tax recovery usually beats flat rate. |
| E-commerce and online B2C sales | — | Effective | Logistics, returns, marketplaces, imports: too variable for a single flat rate. |
| Manufacturing and industry | 1.3%–2.7% | Effective | Raw materials, energy, machinery: high input tax makes flat rate rarely competitive. |
| Non-food retail | 1.3%–2.7% | Evaluate | Depends on imports and stock; wholesalers with low margin and many VAT purchases → effective. |
| Transport, couriers, logistics | ≈ 3.0% | Evaluate | Fuel, vehicles, fleet leasing: if >30% costs with VAT, effective almost always better. |
| Advertising, marketing, creative agencies | 6.1% | Flat-rate | Similar to consulting: few direct taxable costs unless large media buys with VAT. |
| Real estate services (management, taxable brokerage) | 6.1% | Effective | Office, marketing and subcontractors; mixed supplies need precise tracking. |
| Taxable medical / paramedical services | 5.9% | Effective | Medical equipment, external labs, fit-out: significant deductible input tax. |
| Agriculture, viticulture, direct producers | 0.1%–1.3% | Flat-rate | Very low agricultural flat rates; check specific LIVA art. 10 exemptions. |
Green = flat-rate often fits · Blue = effective often better · Amber = depends on purchase/turnover ratio
5-step decision checklist
Use this sequence before signing the FTA form:
- 1Check flat-rate eligibility: turnover ≤ CHF 5,005,000 and estimated tax ≤ CHF 103,000
- 2Calculate share of purchases/investments with deductible VAT vs net turnover
- 3Simulate annual VAT under both methods with real data (Excel or AccountEX), not optimistic guesses
- 4Include admin cost: tax saving minus extra fiduciary/bookkeeping hours
- 5If flat-rate wins by <5–10%, prefer effective: more flexibility for growth and unexpected capex
Simplified numeric examples
Taxable turnover CHF 200,000, average 8.1% sales rate (simplified):
Consulting — 6.1% flat rate
VAT due ≈ CHF 200,000 × 6.1% = CHF 12,200. No supplier deductions. With only CHF 5,000 purchases (VAT CHF 405), flat rate often beats effective (≈ CHF 15,795 net).
E-commerce — effective
Output VAT ≈ CHF 16,200. Purchases and shipping VAT CHF 8,000 → input CHF 648. Net ≈ CHF 15,552. A 2.7% retail flat rate would be CHF 5,400 but forfeit recovery on high costs — effective wins on thin margins.
Changing method and constraints
Plan ahead: you cannot switch quickly to recover VAT on a large investment.
- Minimum three tax periods (years) lock-in for the chosen method
- FTA change request by 28 February of the year the new method should apply
- Switch from flat-rate to effective before major purchases (vehicles, machinery, renovation)
- Above CHF 5,005,000 turnover flat-rate ends automatically — prepare quarterly effective reporting early
Common mistakes
Choosing flat-rate for simplicity without calculation
Many SMEs with 40%+ taxable costs overpay thousands yearly. 12-month simulation is mandatory.
Confusing VAT rate (8.1%) with flat rate (6.1%)
Different concepts: first goes on customer invoices; second is only for FTA flat reporting.
Ignoring two activity codes
Two sectors (e.g. retail + repair) may get two flat rates — turnover must be split correctly.
Not updating software after 2024 reform
VAT and flat rates changed from 1 Jan 2024 — old percentages trigger corrections and interest.
7 practical tips
- Ask your fiduciary for a comparative simulation before VAT registration — 3-year lock-in
- Near CHF 100,000 threshold? Model next year too — above 5M forces effective method
- AccountEX can run both scenarios in parallel until you file the first official return
- Sectors marked Evaluate: a 2-hour simulation prevents decade-long errors
- Imports and reverse charge: almost always effective, even if sector flat rate looks low
- Keep signed comparative calculation: useful if FTA questions the initial choice
- Semi-annual flat-rate filing: still set aside VAT on each receipt to avoid June/December cash shocks
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