Florida Auto Lease vs Buy Calculator

How this calculator works

The Florida lease-vs-buy decision is one of the highest-dollar consumer-finance questions a Florida household makes outside of a home purchase. Generic lease-vs-buy calculators get the rough shape right but miss four Florida-specific mechanics that materially change the answer. This calculator surfaces all four:

1. Florida sales tax on a lease is charged monthly, not upfront. F.S. § 212.05 imposes the 6% state sales tax on each lease payment. F.S. § 212.054 layers the county discretionary surtax on top. The $5,000 surtax cap under F.S. § 212.054(2)(b)1 applies in the aggregate to the stream of lease payments by the same lessee on the same vehicle. Once cumulative payments cross $5,000, the surtax stops accruing for the rest of that lease.
2. Florida sales tax on a purchase is charged upfront on the full price. State 6% on the full negotiated price. Surtax on the first $5,000 only. This is the canonical Florida tangible-personal-property mechanic, applied to motor vehicles. A $40,000 vehicle in a 1.5% surtax county pays $2,475, not $3,000.
3. Florida dealer doc fees have no state-imposed cap. Industry norm is $899-$999, with some Florida dealers pushing toward $1,200-$1,500. Florida is one of a handful of states with no statutory ceiling on what dealers can charge as a documentation fee. Several recent legislative sessions have considered capping it at $999; as of the latest review the cap is not in effect.
4. Florida title and registration sit under F.S. § 320. Title runs about $77.25 at first issuance; annual registration is weight-based at roughly $28-$76; a new plate adds about $28. Administered by the Florida Department of Highway Safety and Motor Vehicles (DHSMV) through the county tax collectors.

The calculator runs three paths in parallel: a 36-month lease (extended into a second leg to cover the 5-year comparison horizon), a 60-month finance, and an all-cash purchase. Each path captures the appropriate Florida sales tax flow, dealer doc fee, title and registration fees, and (on the lease path) leasing-company-required gap insurance and higher liability limits. The buy paths capture terminal vehicle equity at the end of the comparison horizon, which is the single biggest reason the buy paths usually win on total cost in Florida.

The Florida lease-tax mechanic, worked

The most counter-intuitive piece of Florida auto economics: lease tax is a recurring monthly charge, not a closing-day event. Mechanically:

• The 6% state rate applies to every monthly payment. No cap. Ever.
• The county surtax applies until cumulative payments cross $5,000. Then it stops.
• New leases start a new $5,000 surtax clock. A 36-month lease followed by a new 36-month lease on a different vehicle has two separate cap clocks.

Worked example: $580/mo lease in Miami-Dade

A 36-month lease at $580/mo in Miami-Dade County (1.0% surtax):

• State tax on each payment: $580 × 6% = $34.80
• Cumulative payments cross $5,000 at month 9 ($5,220).
• For months 1-8: full state + surtax = $34.80 + $5.80 = $40.60
• For month 9: prorated surtax on $5,000 - $4,640 cumulative = $360 of surtax base. Surtax = $3.60. Plus full state = $38.40.
• For months 10-36: state only = $34.80 each.
• Total Florida sales tax on the lease (36 months): about $1,303.

That total is materially lower than a same-MSRP outright purchase. On a $39,500 vehicle in Miami-Dade, the purchase sales tax is $39,500 × 6% + $5,000 × 1% = $2,370 + $50 = $2,420. Florida's lease-tax mechanic is friendly to lessees on the surtax side because cumulative payments often don't catch up to the purchase price.

What changes on a re-lease

The 5-year horizon model assumes the lessee signs a second lease at month 36. The second lease starts a new $5,000 surtax cap clock, so the lessee pays the surtax all over again for the first 9 months of the new lease. A serial leaser in Florida pays the surtax on the first $5,000 of cumulative payments at the start of every new lease — and across decades of leasing, this compounds.

The Florida purchase-tax mechanic, worked

Florida purchase sales tax is charged at the dealer at the point of sale and either paid in cash or rolled into the finance loan. The mechanic:

• State 6% on the full negotiated price.
• County surtax on the first $5,000 of price only.

Worked example: $39,500 purchase in Miami-Dade

• State tax: $39,500 × 6% = $2,370
• Surtax: $5,000 × 1% = $50
• Total Florida sales tax: $2,420 (paid upfront, typically rolled into the finance loan principal)

The cap saves the buyer $295 versus a hypothetical uncapped surtax computation ($39,500 × 1% = $395). On higher-priced vehicles the cap savings grow with price — a $100,000 truck in a 1.5% surtax county saves $1,425 against the uncapped surtax.

The dealer collects and remits on Form DR-15. The county tax collector verifies the tax at registration before issuing title and plates. A buyer who pays tax to another state on the same vehicle (common in interstate relocations) gets a credit for the out-of-state tax under F.S. § 212.0596 — net Florida tax is the difference.

Lease-specific insurance loading

Florida's statutory financial-responsibility minimums are $10,000 PIP + $10,000 PD under F.S. § 627.7407 — the "10/20/10" floor. Florida is a no-fault state, and the minimums are notoriously low for the actual exposure on a Florida road.

Leasing companies don't accept Florida's minimums. The typical leasing-company contract requires:

• $100,000 / $300,000 / $100,000 bodily-injury and property-damage liability (the "100/300/100" standard limit)
• Gap insurance — pays the difference between actual cash value and lease payoff in the event of a total loss
• Comprehensive and collision coverage with a deductible no higher than $500-$1,000

Florida lessees commonly pay $30-$60/mo above the equivalent owner-financed insurance bill on the same vehicle because of these requirements. The calculator builds a $45/mo lease-insurance delta into the lease-path total cost to reflect this loading. For a binding number, get insurance quotes for both scenarios — the delta varies materially by driver profile, ZIP code (Miami-Dade and Broward run high), and carrier.

Terminal vehicle equity — the lease path's structural disadvantage

At the end of the 5-year comparison horizon:

• Lease path: the lessee returns the vehicle and walks away. Zero terminal equity. (The lessee can buy out at the residual value, but typically the residual is set at the captive-finance-guaranteed buyout price, which can exceed the vehicle's actual market value — in which case the buyout is uneconomical.)
• Buy-with-financing path: the buyer-financer owns the vehicle outright (assuming the 60-month loan is paid off at year 5). The vehicle has residual market value — typically $18,000-$22,000 on a $42,000 MSRP mainstream vehicle after 5 years of typical mileage and condition.
• Buy-with-cash path: same terminal equity as the finance path. The cash buyer trades opportunity cost (cash tied up) for no interest expense.

This structural difference is the single biggest reason the buy paths usually beat leasing on total cost in Florida. On the worked example ($42,000 MSRP, $39,500 negotiated, Miami-Dade), the buy paths typically end the 5-year horizon $5,000-$15,000 ahead of the lease path on total cost, net of terminal equity. The exact gap varies with money factor, residual, loan rate, and vehicle depreciation profile.

When leasing actually wins

Leasing can beat the buy paths on total cost when:

• The captive-finance company is heavily subventing the money factor or residual. A manufacturer's promotional lease with a 0.00050 money factor (~1.2% APR equivalent) is a different math problem than a 0.00200 money factor lease. Always compute the lease APR equivalent and compare directly against the available finance APR before assuming "lease vs buy" generalizes.
• The lessee places very high value on driving a newer vehicle. Leasing trades terminal equity for a refresh cycle — a serial leaser drives a 0-36 month old vehicle perpetually. The buy paths drive a 0-N year old vehicle, where N grows.
• The lessee can write off the lease payment as a business expense. Florida sole proprietors and S-corp pass-throughs commonly lease through the business for the simpler tax treatment (lease payment is a deductible business expense; vehicle ownership requires depreciation schedules and Section 179 elections). This calculator does not model the tax treatment of business vehicle ownership; for that analysis, work with a Florida CPA.

Mileage overage exposure

Florida captive-finance leases impose a per-mile overage charge at turn-in — typically $0.15-$0.25 per mile beyond the contractual allowance. Florida commuters in Tampa Bay, Orlando, and Miami metros commonly run 15,000-20,000 miles per year — well above the standard 12,000 mile-per-year allowance.

A 12,000 mi/yr lease driven 16,000 mi/yr accrues 4,000 overage miles per year × 3 years = 12,000 miles × $0.20/mi = $2,400 due at lease-end. The calculator surfaces an expected-overage charge if the user's modeled annual mileage exceeds the lease allowance.

Mitigation options:

• Buy a higher-mileage allowance up front (15,000 or 18,000 mi/yr) — usually $0.01-$0.02 more on the money factor, often cheaper than paying overage at turn-in.
• Buy the lease out at the residual at lease-end and own the vehicle instead of paying overage. Compare residual against current market value first.
• Lease a different vehicle if turn-in is more than 6 months away — overage isn't realized until turn-in, and switching vehicles inside the captive family can reset the clock.

What this calculator does NOT do

This calculator handles the per-deal Florida total-cost comparison. It does NOT:

• Model business-vehicle tax treatment. Section 179, MACRS depreciation, lease-payment expense deduction — work with a Florida CPA for the business path. The numbers above assume personal use.
• Negotiate the dealer doc fee. Florida dealers commonly knock $200-$400 off the published doc fee in negotiation. The $899 default is the unnegotiated industry norm; treat it as a ceiling, not a floor.
• Account for early lease termination. Walking away from a lease early is usually catastrophic — the lessee owes the remaining payments plus an early-termination fee, less any market value credit. Don't model early termination here; if you might need to break the lease, the buy paths are almost always the safer call.
• Model captive-finance promotional offers. The "lease for $X/mo with $Y down" headline numbers in Florida dealer advertising frequently rest on tier-1 credit, subvented money factor, atypical residual, and specific trim levels. Override the money factor and residual inputs with the actual worksheet numbers.

How this page is maintained

The Florida state 6% sales-tax rate has been stable for decades. The county surtax rates change almost every year; the Florida DOR publishes the updated DR-15DSS each January. Florida dealer doc-fee norms drift slowly; legislative attempts to cap the fee at $999 have stalled but recur. Florida DHSMV title and registration fees are stable in the $28-$76 band but adjust occasionally — pull the current schedule from your local Florida tax collector for a binding number.

Last reviewed: 2026-05-15 against F.S. § 212.05, § 212.054, § 212.054(2)(b)1, § 320, the current Florida DOR Form DR-15DSS county-rate table, and Florida DHSMV fee schedules.