Buy vs Lease an SUV
SUVs occupy a different decision frame than sedans for both leasing and buying. The 6,000-pound GVWR threshold in IRC Section 179 creates a tax-treatment cliff for business buyers, popular SUVs lead the industry in residual-value retention (favoring buyers who hold long), and three-row family vehicles deliver enough cash-flow strain to make the lease versus loan trade-off material in absolute dollars. This guide breaks down the GVWR tax angle, the residual-strength rankings, the typical 2026 lease and loan numbers on popular three-row SUVs, and the specific scenarios where leasing or buying wins for SUV buyers in 2026.
The 6,000-pound GVWR Section 179 cliff
The largest single tax distinction in SUV purchasing is the IRC Section 179 SUV cap, applied to vehicles with a manufacturer-stated GVWR above 6,000 pounds. For 2026, the SUV cap under Section 179 is approximately $32,000 in first-year expense deduction (indexed annually for inflation). Below 6,000 lbs GVWR, the vehicle falls under IRC Section 280F luxury-auto limits, with a first-year deduction around $12,200 plus the year's prevailing Section 168(k) bonus depreciation percentage applied to the remainder.
SUVs above the threshold include the Toyota Sequoia (7,300 lbs), Chevrolet Tahoe (7,500 lbs), Ford Expedition (7,400 lbs), Cadillac Escalade (7,500 lbs), GMC Yukon (7,500 lbs), Lincoln Navigator (7,600 lbs), Jeep Wagoneer (7,500 lbs), Toyota Land Cruiser (7,300 lbs), Lexus GX 550 (6,800 lbs), and Mercedes-Benz GLS-Class (7,000+ lbs). These qualify for the SUV cap when used more than 50 percent for business. The IRS Publication 946 on depreciation spells out the rules in detail.
SUVs below the threshold include the Toyota RAV4, Honda CR-V, Subaru Forester, Mazda CX-5, Hyundai Tucson, Kia Sportage, and most compact crossovers (typically 3,800 to 4,400 lbs GVWR). These fall under the luxury-auto first-year cap. The practical effect for a business buyer: a $48,000 Sequoia can have roughly $32,000 of basis expensed in year one via Section 179, while a $32,000 RAV4 can have roughly $12,200 expensed in year one. The Sequoia is a much faster tax-recovery purchase despite the higher price.
SUV residual strength: the top tier
The Kelley Blue Book Best Resale Value Awards and the Automotive Lease Guide's residual rankings consistently put a handful of SUVs at the top of the value-retention list. The Toyota 4Runner SR5 retains roughly 70 percent of MSRP at year 5; the Jeep Wrangler Unlimited Sport at roughly 65 percent; the Toyota Land Cruiser at roughly 68 percent; the Toyota Sequoia at roughly 60 percent; the Lexus GX 550 at roughly 60 percent. Compare with the typical luxury full-size SUV (Cadillac Escalade, BMW X7) at 38 to 45 percent, and the typical midsize crossover at 40 to 50 percent.
The implication for buyers: a $58,000 4Runner held for 5 years and sold at roughly $41,000 has $17,000 of effective depreciation cost. A $58,000 Escalade held for 5 years and sold at roughly $25,000 has $33,000 of effective depreciation cost. The 4Runner is dramatically cheaper to own on a 5-year hold despite the same purchase price.
The implication for lessees: strong residuals translate directly into lower monthly payments. The same $58,000 vehicle at a 65 percent residual versus a 45 percent residual cuts the depreciation amount being financed from $31,900 to $20,300, a $11,600 difference. On a 36-month lease, that is roughly $322 per month lower payment on the strong-residual vehicle.
Worked example: 2026 Toyota Highlander XLE AWD
MSRP $46,200, negotiated price $44,500. Three-row family SUV, 5,200 lbs GVWR (below the Section 179 cliff so personal-buy treatment applies).
Lease: 36 months, 12,000 mi/yr, money factor 0.00175 (4.2 percent APR equivalent for prime credit), residual 56 percent of MSRP = $25,872. Monthly base payment $543. With 6.5 percent state sales tax on the monthly: $578. Acquisition fee $695 plus first month plus tax due at signing: roughly $2,000 drive-off. Total 35 additional monthly payments of $578 = $20,230. Add disposition fee $400, walk away at month 36. Total lease spend: $22,630 with $0 asset.
Buy: 60 months at 6.89 percent APR, $5,500 down, financed $39,000. Monthly payment $769. Total payments $46,140. Plus down payment $5,500. Total spend $51,640. Vehicle at month 60 with 60,000 miles, market value roughly $24,500 (Highlander holds value reasonably well, 53 percent of MSRP at year 5). Net 5-year cost: $27,140. OBBBA loan-interest deduction (US-assembled in Indiana) saves roughly $1,200 in tax over 5 years at a 22 percent marginal rate, reducing net cost to roughly $25,940.
At month 36, the lease spend ($22,630, walk-away) compares to the buy spend at month 36 ($5,500 down + 36 payments of $769 = $33,184 spent, vehicle worth roughly $30,000, loan balance roughly $17,300, equity $12,700, net cost $20,484). Buy is roughly $2,000 better at month 36 and roughly $1,000 better at month 60. The lease becomes meaningfully worse than buy when extended to a second cycle: re-lease at month 36 for another $22,630 brings 6-year lease cost to $45,260 with no asset, versus buy at $46,140 spent with roughly $19,000 remaining residual = net cost $27,140. Over 6 years, buy wins by $18,000.
For Toyota 4Runner, Wrangler, Land Cruiser, Sequoia, GX, and similar strong-residual SUVs, buying on a 60-month loan and holding 7 to 10 years generally beats leasing by $15,000 to $25,000 in total cost. For luxury full-size SUVs (Escalade, Navigator, GLS) where depreciation is steep, leasing protects against residual-risk and can win for 3 to 4 year horizons.
Business buyers of 6,000+ lbs GVWR SUVs get the Section 179 SUV cap (about $32,000 first-year) which makes the buy path even more attractive for business use.