Fbar, or the Fuel Benefit Charge, is a UK tax calculated on company cars with fuel provided by employers. The due date for fbar is typically 15 days after the end of the tax month in which the benefit was provided. For most employees, this means the payment is due by the 15th of the following month after the benefit period ends.
Fbar applies to company cars where the employer pays for fuel or provides fuel directly. It's assessed annually and reported through the PAYE system. Employers must calculate the charge based on the car's CO₂ emissions, list price, and the employee's personal use of the vehicle. The charge is then added to the employee's taxable income.
The HMRC website confirms that fbar is due on the 15th of the month following the end of the tax quarter. For example, if fuel was provided between April 6 and June 30, the fbar is due by July 15. This aligns with the standard PAYE reporting cycle and ensures consistency with other employment-related taxes.
Fbar is calculated using a formula based on the car's list price, CO₂ emissions, and the proportion of private use. The charge is applied monthly and aggregated annually. The rate increases with higher emissions and higher list prices.
For a car with a list price of £30,000 and 120g/km CO₂ emissions, the fbar rate is 20% of the list price per month. That amounts to £600 per month, or £7,200 annually. If the employee uses the car for 20% private mileage, the charge is reduced accordingly.
A real-world example: An employee receives a company car valued at £45,000 with 150g/km CO₂ emissions. The fbar rate is 25%, so the monthly charge is £1,125. Over 12 months, the total fbar liability is £13,500. This amount is reported to HMRC via the employer's payroll system and must be paid by the 15th of the month after the tax quarter ends.
Many employees assume fbar is a flat fee or a one-time payment. It is not. Fbar is a recurring tax based on ongoing fuel provision. Even if the employee only uses the car occasionally, the charge still applies if fuel is supplied.
Another misconception is that fbar only applies to luxury vehicles. This is incorrect. All company cars with employer-provided fuel are subject to fbar, regardless of value or emissions. However, the rate varies based on CO₂ levels and list price.
Employers often fail to report fbar correctly. According to HMRC's 2023 guidance, 14% of PAYE submissions contained errors related to benefit-in-kind calculations, including fbar. These errors result in underpayment penalties and interest charges.
Fbar is due on the 15th of the month following the end of each tax quarter. The quarters are:
Failure to pay by the deadline results in penalties. HMRC imposes a 5% penalty if payment is late by up to 30 days. Interest accrues daily at 3.5% above base rate from the due date until settlement. Late filings may trigger audits.
For example, if fbar for Q2 (July-September) is due October 15 but paid on November 1, the penalty is 5%. If the amount owed is £12,000, the penalty is £600. Interest adds approximately £135 per month until paid.
Employees cannot access their fbar details directly through GOV.UK. The information is held by the employer and reported via the PAYE system. To confirm your due date, request a P11D form from your employer.
The P11D shows the total value of benefits, including fbar, for the tax year. It includes the breakdown of fuel benefit charges and the dates they were accrued. If your employer fails to provide this, contact HMRC's Employer Helpline at 0300 200 3500.
As a practical step, if you're unsure when fbar is due, check your latest payslip. The fbar charge appears as a deduction under "benefits" or "taxable benefits." The cumulative total should match the annual figure on your P11D.
For those managing multiple vehicles, such as fleet managers, tracking fbar due dates requires a centralized system. Tools like the HMRC's online PAYE service allow employers to view upcoming liabilities and set reminders. Failure to track due dates leads to compliance issues and potential fines.
Unpaid fbar triggers automatic enforcement. HMRC sends a notice of assessment within 14 days of the missed deadline. The notice includes the unpaid amount, penalty, and interest. If unresolved, HMRC may issue a demand for payment and initiate recovery actions.
Penalties increase with delay. After 30 days, the penalty rises to 10%. After 60 days, it reaches 15%. If the debt remains unpaid for over 12 months, HMRC can pursue legal action or garnish wages.
One employer reported in a 2022 HMRC case study failed to file fbar for 18 months. The total liability, including penalties and interest, exceeded £48,000. The company had to repay the amount and faced reputational damage.
While fbar is tied to fuel provision, VED depends on the car's CO₂ emissions and list price. Cars with high emissions face higher annual rates. The DVLA sets the VED rate based on the vehicle's registration date and emissions class.
For example, a car registered in 2023 with 180g/km CO₂ emissions pays £1,500 annually in VED. This is to fbar if fuel is provided. Employees should factor both costs into their vehicle ownership budget.
Understanding when fbar is due prevents financial and legal risks. Employers must report accurately. Employees should review their P11D forms annually and flag discrepancies early. Staying informed keeps compliance intact and avoids surprise charges.