Novated Lease Calculator: How to Work Out If It's Worth It

Novated leases are one of those financial products that sound brilliant on paper — salary sacrifice a car from pre-tax income and save thousands. But the reality is more nuanced. Some people save a fortune. Others barely break even after fees, residual values, and FBT eat into the supposed savings.

The only way to know if a novated lease makes sense for you is to run the numbers. Here's how to use a novated lease calculator properly, and what to watch out for.

How a novated lease actually works

A novated lease is a three-way agreement between you, your employer, and a leasing company. Here's the flow:

1. You choose a car — new or used (typically under 5 years old)
2. A finance company buys it — they own the car during the lease term
3. Your employer deducts payments from your salary — a mix of pre-tax and post-tax deductions
4. Running costs are bundled in — fuel, insurance, rego, tyres, servicing
5. At lease end — you pay the residual (balloon) value, refinance, or hand back the car

The tax benefit comes from the pre-tax deductions reducing your taxable income. If you're on a 37% marginal tax rate, every dollar paid from pre-tax salary effectively costs you 63 cents.

The EV game-changer: zero FBT

Since July 2022, electric vehicles under the luxury car tax threshold ($89,332 for fuel-efficient vehicles in 2025-26) are exempt from Fringe Benefits Tax. This is enormous.

For petrol cars, FBT is calculated at 47% of the "statutory fraction" of the car's value — which significantly reduces the tax benefit. With EVs, the full lease amount comes from pre-tax salary with zero FBT liability.

Worked example: Tesla Model 3 on $120,000 salary

• Car price: $55,000 (driveaway)
• Lease term: 5 years
• Running costs (insurance, rego, charging, servicing): ~$4,500/year
• Total annual lease cost: ~$13,500
• Pre-tax deduction at 37% marginal rate: saves ~$5,000/year in tax
• GST savings on running costs: additional ~$400/year
• Total annual saving vs buying outright: ~$5,400
• Total saving over 5 years: ~$27,000

That's real money. But it only works this well because it's an EV with no FBT. The same car running on petrol would save roughly $1,500–$2,500/year after FBT — still worthwhile, but far less compelling.

When a novated lease doesn't make sense

Not everyone benefits equally. Watch out for these scenarios:

• Low income (under $45,000): Your marginal tax rate is only 16.5% (including Medicare), so the pre-tax benefit is small. Fees and interest may wipe out the saving entirely.
• Short employment horizon: If you might leave your job within 1-2 years, the setup fees ($500–$1,500) and potential complications of transferring the lease may not be worth it.
• Expensive petrol car: FBT on a $70,000 petrol SUV can be $8,000–$12,000/year in additional tax cost, dramatically reducing or eliminating the benefit.
• Low km driving: Bundled running costs assume average kilometres. If you drive under 10,000km/year, you may be overpaying for fuel and servicing you don't use.
• You hate debt: A novated lease is a finance product. You don't own the car until the residual is paid. If you prefer to buy outright with cash, that's a valid choice.

What to look for in a novated lease calculator

A good novated lease calculator should show you:

1. Net take-home pay impact — how much less you'll receive in your bank account each fortnight
2. Tax saving per year — the actual dollar difference between salary sacrificing vs paying post-tax
3. FBT cost — for petrol/hybrid vehicles, this is the dealbreaker number
4. Total cost of ownership — lease payments + running costs + residual vs buying outright + running costs
5. Residual/balloon payment — the ATO sets minimum residual values (e.g., 65.63% after 1 year, 56.25% after 2 years, down to 18.75% after 5 years)

The residual value trap

At the end of your lease, you'll owe the residual value. For a $55,000 car on a 5-year lease, the minimum residual is 18.75% = $10,312.

This isn't a surprise — you know it's coming. But some people don't plan for it. Options at lease end:

• Pay the residual — the car is now yours. If the car is worth more than the residual, you've done well.
• Refinance into a new lease — roll the residual into a new novated lease on the same car or a new one.
• Sell the car — use the proceeds to pay the residual. Pocket any surplus.

For EVs, depreciation in the first few years can be steep (Tesla Model 3s have been dropping as new models arrive), so the residual value might be close to or even above the car's actual market value at lease end. Factor this into your calculation.

Novated lease vs buying outright vs car loan

Here's how the three main options compare for a $55,000 EV on a $120,000 salary:

How to use our novated lease calculator

Our Novated Lease EV Calculator focuses on the EV scenario (where the savings are most significant). Enter your salary, car price, lease term, and it calculates the take-home pay impact and total savings.

Key inputs to get right:

• Your gross salary — this determines your marginal tax rate and therefore your saving
• Car driveaway price — not the advertised price; the actual on-road cost including delivery
• Lease term — 3 or 5 years are most common. Shorter = higher payments but less total interest
• Annual kilometres — affects running cost estimates and the lease pricing

Tips for getting the best novated lease deal

1. Compare providers. Don't just go with whoever your employer uses. Get quotes from 2-3 novated lease companies. Management fees vary significantly ($400–$1,200/year).
2. Negotiate the car price separately. Get the best price from the dealer first, then give that price to the lease company. Some providers mark up the car cost.
3. Watch the interest rate. Novated lease rates are typically 6–9%. Compare this to car loan rates (5–8%). The tax saving needs to exceed the higher interest cost.
4. Check the included running costs. Make sure fuel/charging budgets match your actual usage. You can usually adjust these annually.
5. Understand the residual. Know exactly what you'll owe at lease end and plan for it.