Key Takeaways
- The IRS lease inclusion rule slightly reduces deductions for certain leased business vehicles.
- The adjustment exists to keep the tax treatment of leasing and purchasing vehicles relatively consistent.
- The lease inclusion amount depends on the vehicle’s value, the year of the lease, and IRS inclusion tables.
- As with purchased vehicles, deductions depend on the percentage of business use.
- Businesses deciding whether to lease or buy a vehicle should consider tax rules alongside cash flow, financing options, and long-term planning.
For many small and mid-sized businesses, vehicles are a necessary part of daily operations. Whether it’s traveling between job sites, meeting clients, managing deliveries, or running administrative errands, business vehicles often represent a significant operating expense.
When evaluating vehicle options, many owners focus on the practical considerations: monthly payments, upfront costs, and how long they plan to keep the vehicle. From a tax perspective, however, the decision between leasing and purchasing also comes with different rules.
One of those rules is known as the IRS lease inclusion rule. The rule applies when a business leases a passenger vehicle above certain value thresholds set by the IRS. While the adjustment is usually modest, understanding how it works can help business owners make more informed decisions before entering into a lease agreement.
Why the IRS Created the Lease Inclusion Rule
Passenger vehicles used in business are subject to depreciation limits under Internal Revenue Code Section 280F. These limits restrict how quickly businesses can deduct the cost of a vehicle when it is purchased.
Without additional rules, leasing could provide a way around those limits. A business could lease a higher-value vehicle and potentially deduct the full lease payment each year instead of being subject to depreciation caps.
To address this imbalance, the IRS introduced the lease inclusion rule. Under this rule, businesses that lease certain passenger vehicles must add a small amount back into income each year of the lease. The adjustment slightly reduces the total deduction associated with the lease. Updated guidance for vehicles first leased in 2026 appears in IRS Revenue Procedure 2026-15.
What Changed for 2026
Each year, the IRS updates the tables used to calculate lease inclusion amounts to reflect inflation and changing vehicle prices. For vehicles first leased in calendar year 2026, updated inclusion tables were released in Revenue Procedure 2026-15. While the structure of the rule remains the same, the IRS adjusts the vehicle value ranges and inclusion amounts used to calculate the annual adjustment.
In practice, the lease inclusion amount is usually modest. For vehicles just above the IRS value threshold, the first-year adjustment may only be a small dollar amount, increasing gradually in later years of the lease.
How the Lease Inclusion Amount Is Calculated
The lease inclusion amount is calculated using IRS tables that are updated annually. The calculation considers several factors, including:
- The fair market value of the vehicle when the lease begins
- The year of the lease term
- The IRS inclusion table for that year
The IRS tables group vehicles by value and assigns a specific dollar amount that must be included in income for each year of the lease. In most cases, the adjustment is small relative to the overall lease expense. However, the amount typically increases gradually over the life of the lease.
For example, a business leases a vehicle with a fair market value of $70,000 when the lease begins in 2026. The IRS inclusion tables assign a specific inclusion amount for that value range for each year of the lease. If the table lists a $50 inclusion amount for the first year, the business must include that amount in income. This effectively reduces the total lease deduction for the year by the same amount. If the vehicle is used 80% for business, only 80% of the inclusion amount applies. In that case, the adjustment would be $40 ($50 x 80%). The inclusion amount generally increases slightly in each subsequent year of the lease.
Business Use Still Matters
As with purchased vehicles, the amount a business can deduct depends heavily on how the vehicle is used for business purposes.
If a vehicle is used for both business and personal purposes, only the business-use portion of the expenses is deductible. The same percentage applies to the lease inclusion adjustment.
For example, if a leased vehicle is used 75% for business, then only 75% of the lease payments are deductible, and only 75% of the lease inclusion amount would apply.
The IRS requires businesses to maintain adequate documentation supporting business use, such as mileage logs or similar records. Guidance on recordkeeping requirements appears in IRS Publication 463 (Travel, Gift, and Car Expenses).
When Leasing May Still Make Sense
Even with the lease inclusion rule in place, leasing can still be an attractive option for some businesses. Common reasons companies choose to lease include:
- Lower upfront costs compared to purchasing
- Predictable monthly payments
- The ability to replace vehicles more frequently
- Avoiding long-term ownership of depreciating assets
In many cases, the tax treatment is only one part of the decision. Cash flow, operational needs, and long-term financial planning often play a larger role than the relatively small differences in tax treatment.
Why It Helps to Plan Before Signing a Lease
Because the lease inclusion adjustment is tied to the vehicle’s value and the start date of the lease, it’s helpful to review the tax implications before finalizing the agreement.
Vehicle decisions can also intersect with broader planning considerations, including:
- Overall business tax strategy
- Entity structure and owner compensation planning
- Recordkeeping and documentation requirements
- Long-term capital investment decisions
Taking the time to review these factors can help ensure the vehicle decision supports both the company’s operational needs and its financial goals.
Plan Ahead
Leasing a vehicle for business use can still provide meaningful tax deductions, but it comes with its own set of rules. For business owners weighing whether to lease or buy, understanding both the depreciation limits on purchased vehicles and the lease inclusion rules for leased vehicles can provide a clearer picture of the financial impact.
Before entering into a lease agreement, it’s worth reviewing the details with us to ensure the decision aligns with your broader tax and business planning strategy.