Straight-Line Rent Calculator
Commercial leases rarely charge the same rent every month. Rent-free periods and annual escalations make the cash schedule lumpy, which makes budgeting and reporting harder. Straight-line rent solves this by spreading the total cash you will pay over the entire term evenly across each period, so you recognize one level expense rather than a moving target. Early in an escalating lease the straight-line figure sits above the cash rent, and later it sits below, but the two schedules always sum to the same total over the term. This calculator takes the total of all scheduled payments across the lease, including escalations and net of any rent-free months, and the length of the term, then returns the level straight-line rent per month and per year. It is the core figure behind the deferred rent adjustment in standard lease accounting, where the difference between cash paid and straight-line expense is carried on the balance sheet. Lease incentives and tenant improvement allowances are handled separately under full accounting standards, so use this tool for the base figure. Every figure is computed deterministically from the formula shown below, with a worked example that reconciles exactly to the calculator defaults so you can confirm the level expense before you post it.
Straight-line rent spreads total payments evenly: per period = total lease payments / term. Total payments of $75,660.00 over a 36-month term give a level rent of $2,101.67 per month, or $25,220.00 per year.
Straight-line rent formula
Rent per month = Total lease payments / Term in months
Rent per year = Rent per month x 12
Total lease payments = sum of all scheduled rent
Term = number of months in the lease
The same total cash is spread evenly over every period. Early escalating leases recognize more than the cash rent, later periods less, and the schedules sum to the same total.
Worked example
A three year lease pays 24,000 in year 1, 25,200 in year 2 and 26,460 in year 3.
- Total lease payments = 24,000 + 25,200 + 26,460 = 75,660.00
- Term = 3 years = 36 months
- Rent per month = 75,660 / 36 = 2,101.67
- Rent per year = 2,101.67 x 12 = 25,220.00
The level straight-line rent is 2,101.67 dollars a month. These are the calculator's default inputs, so the result above matches the widget exactly.
Cash rent versus straight-line
The straight-line figure is level while the cash rent escalates each year.
| Year | Cash rent | Straight-line |
|---|---|---|
| 1 | $24,000.00 | $25,220.00 |
| 2 | $25,200.00 | $25,220.00 |
| 3 | $26,460.00 | $25,220.00 |
| Total | $75,660.00 | $75,660.00 |
Leasing and consumer money basics: US Consumer Financial Protection Bureau (CFPB).
Straight-line rent calculator: frequently asked questions
What is straight-line rent?
Straight-line rent spreads the total cash you will pay over a lease evenly across every period of the term, regardless of when the cash is actually due. If a lease has escalating payments, the straight-line expense is higher than the cash rent early on and lower later, so the total recognized over the term equals the total cash paid. It produces a single, level rent figure that is easier to budget and report.
Why spread rent evenly?
Many leases include rent-free months or annual escalations, so the cash rent jumps around. Recognizing a level expense each period gives a steadier, more comparable picture of the cost of occupying the space and is the basis for the deferred rent adjustment in standard lease accounting. The cash schedule and the straight-line schedule always sum to the same total.
How do I find the total lease payments?
Add up every scheduled payment across the whole term, including any escalations and net of any rent-free periods. For a three year lease with payments of 24,000, 25,200 and 26,460, the total is 75,660. This calculator takes that total and divides it by the term to give the level per-period expense.
Does this include incentives or improvements?
A simple straight-line calculation uses the total cash rent over the term. Lease incentives, tenant improvement allowances and initial direct costs are handled separately under full lease accounting standards. Use this tool for the core straight-line rent figure, then consult the relevant accounting guidance for those adjustments.
What is the straight-line rent formula?
Straight-line rent per period equals the total of all lease payments over the term, divided by the number of periods in the term. The annual figure is the per-month figure multiplied by twelve.
Official sources
- Leasing, contracts and consumer money basics: US Consumer Financial Protection Bureau (CFPB). As at 25 June 2026.
Reviewed by the CalculatorHub team, edited by James Graham, 25 June 2026. See our methodology. This is general information, not financial, tax, legal or investment advice.