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Fleet Calculator · Perk Tax

Perk-Tax Calculator: Imputed Income from Fuel Cards

When employees use the company fuel card for private trips, an imputed-income perk arises under §8 EStG. Calculate wage tax and social security impact — and compare with flat-rate taxation under §40(2) EStG (30%).

Capture private use

Default: 3 drivers, each 40 L of private fueling per month. All values editable — results update live.

Employees who also use the fuel card privately (commute, weekend, holiday).

Estimate per driver. With a logbook this is exact; under the 1% rule usually 20–60 L/month.

Actual at-pump retail price — no discount deduction.

Adjust tax and contribution rates

Default 35%. Mid-bracket for gross salaries €45–65k/year.

Default 20.4%: health (8.2+supplement), long-term care (2.3 incl. childless surcharge), pension (9.3), unemployment (1.3) — rounded.

Default 20.4%: mirrors employee share (no LTC surcharge, plus U1/U2 levies).

On the 30% flat tax there is also a solidarity surcharge (5.5%) and possibly church tax (8–9%). Default 6.5%.

Note: All values are processed locally in your browser. Nothing is sent to our servers. Not tax advice.

Result: Imputed income and tax burden

Imputed income (perk value)

Option A · Individual taxation

Employee taxes the perk at the personal wage tax rate. Subject to social security.

Wage tax (employee)
Social security (employee)
Social security (employer)
Net burden employee / month
Extra cost employer / month

Option B · Flat-rate taxation §40(2) EStG

Employer pays 30% flat tax plus SolZ/church tax. Perk is exempt from social security (SvEV §1).

Flat tax 30% (employer)
SolZ + church tax on flat tax
Social security
0,00 €
Net burden employee / month
0,00 €
Extra cost employer / month
Employee savings under Option B

Simplified model. Real cases depend on contribution ceilings (BBG), health insurance supplement, number of children, marital status and denomination. Not tax advice — consult your payroll team or tax advisor.

What happens in tax terms

Private use of a company fuel card is an imputed-income perk under §8(2) EStG and therefore subject to wage tax and social security. Two taxation routes exist with very different burdens on employee and employer.

Option A — Individual taxation

The perk value is added to the employee’s gross salary. Wage tax at the personal marginal rate, full social security on both sides. The employee „feels“ the burden in net pay; the employer pays its SV share. Suitable when the employee is below the contribution ceiling and willing/able to carry the burden.

Option B — Flat-rate taxation §40(2) EStG

Employer pays a 30% flat wage tax plus solidarity surcharge and church tax. In exchange, the perk is exempt from social security (German Social Security Earnings Ordinance §1). Employee bears no net burden; employer carries it all. Useful as a benefit component or when the employee is above the contribution ceiling and SV savings are large.

How DKV InstantFuel helps

DKV InstantFuel separates fueling per driver and card — every transaction is logged in the dashboard with date, station, litres and amount. This makes the perk verifiable per employee — important during wage-tax audits. Categorisation of „business“ vs „private“ in the dashboard replaces manual Excel lists.

Sources and legal references

  • §8(2) EStG (perk valuation), §40(2) S. 1 No. 1a EStG (30% flat tax).
  • Social Security Earnings Ordinance (SvEV) §1(1) No. 3 — SV exemption with §40-EStG flat taxation.
  • Social security rates 2026: German Federal Ministry of Labour and Social Affairs (BMAS), contribution ceiling West.