Percentage rent is base rent plus a share of the tenant's sales above an agreed threshold called the breakpoint. The formula is simple: (gross sales − breakpoint) × percentage rate. If sales never cross the breakpoint, percentage rent is zero and the tenant pays base rent only. Almost every dispute about percentage rent is really a dispute about one of the three inputs.
That's the whole calculation. The rest of this post is about the inputs, because that's where the money moves.
How to calculate percentage rent in four steps
- Confirm the base rent and the percentage rate in the lease. Both are fixed at signing; base rent usually escalates, which matters later.
- Find the breakpoint. If the lease doesn't state one, it's the natural breakpoint: base rent ÷ percentage rate.
- Subtract the breakpoint from reported gross sales for the period. If the result is negative, percentage rent is zero.
- Multiply the excess by the percentage rate. Bill it, then reconcile against certified annual sales.
Four steps. Now the part that fills a leasing manager's inbox.
Step 1: The three inputs, and which one gets argued about
A percentage rent clause has three numbers: base rent, the rate, and the breakpoint. Base rent is in the rent schedule. The rate is typically 4–8% for in-line retail, lower for anchors and grocery (1–3%), higher for food and beverage or kiosks (8–10%). Those are negotiated once and rarely disputed.
The breakpoint is different. It's the number that decides whether the clause ever pays out, and it's the number tenants read least carefully. And gross sales, the figure the breakpoint is compared against, is defined in a clause most people skip. (We'll get to what counts as a sale. Online orders picked up in store are the current battleground.)
If you manage retail or mall properties, you want your team fluent in the breakpoint before you want them fluent in anything else about this clause.
Step 2: Natural breakpoint — the formula and why it exists
The natural breakpoint is the sales level at which the percentage rate applied to all sales would equal the base rent. Formula:
Natural breakpoint = annual base rent ÷ percentage rate
Take a 4,000-square-foot apparel tenant paying $30 per square foot. Base rent is $120,000 a year. The lease says 6%.
$120,000 ÷ 0.06 = $2,000,000
The logic: at $2,000,000 of sales, 6% is $120,000, exactly the base rent. Below that, the landlord is already collecting more than 6% of the tenant's sales through base rent alone. Above it, the landlord starts sharing in the upside. The natural breakpoint is the point where percentage rent becomes fair to both sides, which is why it's the default when the lease is silent.
One consequence people miss: when base rent escalates, the natural breakpoint escalates with it. If year-3 base rent steps up to $126,000, the breakpoint moves to $2,100,000. A tenant whose sales grew from $2.0M to $2.05M will be surprised to owe nothing in year 3 after paying overage in year 2. Your billing system needs to recompute the breakpoint every time the rent schedule changes, not carry forward the year-1 figure.
Step 3: Artificial breakpoints — when the lease names a number
An artificial breakpoint is any breakpoint the lease states explicitly instead of deriving from the formula. It can go either way.
Landlord-favourable (below natural). Same tenant, but the lease sets the breakpoint at $1,800,000. Percentage rent starts $200,000 of sales earlier. A landlord might negotiate this in exchange for a lower base rent or a larger tenant improvement allowance.
Tenant-favourable (above natural). Breakpoint set at $2,400,000. The tenant keeps all of the first $400,000 above the natural threshold. Common with strong credit tenants, or as a concession for a tenant taking a difficult space.
Here's what that does to the bill at $2,150,000 of sales:
| Breakpoint type | Breakpoint | Sales above breakpoint | Percentage rent at 6% |
|---|---|---|---|
| Natural | $2,000,000 | $150,000 | $9,000 |
| Artificial (landlord-favourable) | $1,800,000 | $350,000 | $21,000 |
| Artificial (tenant-favourable) | $2,400,000 | $0 | $0 |
Same sales, same rate, three answers ranging from zero to $21,000. That spread is why the breakpoint clause deserves the leasing manager's attention and why it needs to be abstracted correctly into whatever system does the billing.
A few leases also stack breakpoints: 6% on sales between $2.0M and $3.0M, 5% above $3.0M. Rarer, but abstract the tiers as separate rows or the calculation breaks.
Step 4: Three worked examples, below, at and above the breakpoint
All three use the apparel tenant: $120,000 base rent, 6% rate, natural breakpoint $2,000,000. Percentage rent is on top of base rent.
Example A: sales below the breakpoint. Annual gross sales come in at $1,650,000.
$1,650,000 − $2,000,000 = −$350,000 → percentage rent $0. Total rent $120,000. The landlord is collecting 7.3% of the tenant's sales through base rent alone. If this tenant tells you the percentage rent clause is "unfair", the maths says the opposite.
Example B: sales just over the breakpoint. Annual sales $2,150,000.
$2,150,000 − $2,000,000 = $150,000 × 6% = $9,000. Total rent $129,000, which is 6.0% of sales.
Example C: a strong year. Annual sales $3,100,000.
$3,100,000 − $2,000,000 = $1,100,000 × 6% = $66,000. Total rent $186,000, again 6.0% of sales.
| Example A | Example B | Example C | |
|---|---|---|---|
| Gross sales | $1,650,000 | $2,150,000 | $3,100,000 |
| Breakpoint | $2,000,000 | $2,000,000 | $2,000,000 |
| Sales above breakpoint | $0 | $150,000 | $1,100,000 |
| Percentage rent (6%) | $0 | $9,000 | $66,000 |
| Base rent | $120,000 | $120,000 | $120,000 |
| Total rent | $120,000 | $129,000 | $186,000 |
| Total rent as % of sales | 7.3% | 6.0% | 6.0% |
Notice the last row. Once sales cross the natural breakpoint, total rent settles at exactly the percentage rate. That's the design. Below the breakpoint the tenant is paying more than the rate; above it, precisely the rate. A tenant-favourable artificial breakpoint pushes that settling point higher; a landlord-favourable one pulls it lower.
Step 5: Monthly versus annual calculation, and the true-up
This is the step that generates the credit memos.
Most leases require monthly sales reports and let the landlord bill percentage rent monthly on a provisional basis, then reconcile against certified annual sales. The trouble is that retail sales aren't flat. For most apparel tenants, November and December carry 25–35% of the year.
Take a tenant whose annual sales finish at $1,950,000, which is $50,000 under the annual breakpoint. On an annual basis, percentage rent is zero. But if the lease computes monthly percentage rent against a monthly breakpoint of $166,667 ($2,000,000 ÷ 12), December alone might look like this:
| Month | Sales | Monthly breakpoint | Excess | Provisional percentage rent |
|---|---|---|---|---|
| October | $145,000 | $166,667 | $0 | $0 |
| November | $210,000 | $166,667 | $43,333 | $2,600 |
| December | $310,000 | $166,667 | $143,333 | $8,600 |
| Jan–Sep combined | $1,285,000 | $1,500,000 | $0 | $0 |
| Annual | $1,950,000 | $2,000,000 | $0 | $11,200 billed → $11,200 credit at true-up |
The tenant paid $11,200 during the holidays and gets all of it back in February. Nobody enjoys that conversation, and the tenant's accountant will ask why it happened at all.
Two ways to avoid it. Better leases compute provisional percentage rent on cumulative year-to-date sales against a cumulative breakpoint, so nothing is billed until the tenant actually crosses the annual line. Alternatively, bill nothing monthly and settle once a year against the certified statement, usually due 60–90 days after the lease year ends. Either way, the true-up is an invoice or a credit memo that has to tie back to the certified sales figure, and that figure has to be stored against the lease, not in someone's spreadsheet.
If your team is already running an annual CAM reconciliation, the percentage rent true-up belongs in the same cycle. Same certified inputs, same dispute window.
What counts as gross sales
The breakpoint is only half the argument. The other half is the definition of gross sales in the lease, and the definitions vary far more than the rates do.
| Usually included | Usually excluded | Negotiated |
|---|---|---|
| In-store sales of goods and services | Sales tax collected | Online orders picked up in store (BOPIS) |
| Gift card redemptions | Returns and refunds (net) | Online orders shipped from the store |
| Layaway and deposits when completed | Employee sales at discount | Delivery-app sales fulfilled from the premises |
| Vending and concession income | Transfers to other locations | Gift card sales (vs redemptions) |
| Bad debt written off | Sales made from a kiosk outside the premises |
The third column is where the last five years of retail leasing have happened. A 2019 lease that says "all sales made in, on or from the premises" was written before curbside pickup was a line item. When a tenant fulfils $400,000 of online orders from the back room, whether that counts is worth $24,000 a year at 6%. Newer leases spell it out. Older ones end up in front of a lawyer. If you're abstracting a lease into your system, capture the gross sales definition as a field, not a footnote.
Where percentage rent sits in the accounting
For the landlord, percentage rent is a variable lease payment under ASC 842. It isn't included in the straight-line calculation at commencement; it's recognised in the period the sales occur that trigger it. So the $66,000 from Example C hits revenue in the year the tenant crossed the breakpoint, not spread over the lease term. Our guide to ASC 842 and IFRS 16 for property companies covers the classification; the practical point here is that percentage rent needs its own revenue line so it doesn't distort the straight-line rent figure.
It also interacts with recoveries. Percentage rent is rent, not a recovery. It stays out of the CAM pool and out of the NNN, gross and modified gross billing logic. Keep the buckets separate or year-end reporting gets messy.
Common mistakes we see in percentage rent billing
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Carrying the year-1 breakpoint through the whole term. The natural breakpoint moves with base rent. If your system stored $2,000,000 as a static number, it's wrong from the first escalation.
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Billing monthly against a flat monthly breakpoint. The holiday-season credit memo problem above. Use cumulative year-to-date or settle annually.
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Treating the sales report as the certified figure. Monthly reports are unaudited. The lease usually requires an annual certified statement; bill the true-up off that, and keep audit rights alive for the period the lease allows (two or three years is typical).
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Mixing percentage rent into CAM. It's rent. It changes the tenant's total occupancy cost but it has nothing to do with the operating expense pool.
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Not abstracting the gross sales definition. If the only place the definition lives is page 14 of the PDF, the person running the true-up will use whatever number the tenant sent.
Running percentage rent in NetSuite
If you bill from a property management system that sits inside NetSuite, the calculation is a lease-level rule rather than a spreadsheet: base rent schedule, rate, breakpoint type (natural or fixed), tiers if any, and the gross sales definition captured as an attribute on the lease record. Monthly sales are entered or imported against the lease, the rule computes provisional rent on a cumulative basis, and the annual certified figure triggers the true-up invoice or credit memo through the same AR flow as base rent. The revenue posts to its own GL account as a variable payment, so straight-line rent stays clean.
That's how RIOO's property accounting on NetSuite handles it. Whatever system you use, the test is the same: change the base rent in year 3 and check whether the breakpoint moved. If it didn't, the tool is storing the answer instead of the rule.
Frequently asked questions
Q1. What is a natural breakpoint in a percentage rent lease?
The natural breakpoint is annual base rent divided by the percentage rate. It's the sales level at which the percentage rate applied to all sales equals base rent. A lease that doesn't state a breakpoint uses the natural one by default.
Q2. Is percentage rent calculated monthly or annually?
It depends on the lease. Many leases allow provisional monthly billing based on sales reports, reconciled against a certified annual sales statement. Leases that bill monthly against a flat monthly breakpoint can overcharge in peak months and require a credit at year end; cumulative year-to-date billing avoids that.
Q3. What counts as gross sales for percentage rent?
Typically all sales of goods and services made from the premises, net of returns and excluding sales tax. Whether online orders fulfilled or collected from the store count depends on the lease wording, and older leases are often silent on it.
Q4. Can percentage rent go down?
Yes. Percentage rent is recalculated each period on actual sales. If sales fall below the breakpoint, percentage rent drops to zero; base rent is unaffected. If base rent escalates, the natural breakpoint rises, which can reduce percentage rent even when sales are flat.
Q5. How is percentage rent accounted for under ASC 842?
For the lessor, percentage rent is a variable lease payment. It's excluded from the straight-line rent calculation and recognised as revenue in the period the sales that trigger it occur.
Related reading
- CAM reconciliation in commercial leases: the other annual true-up that runs on the same certified inputs
- NNN, gross and modified gross lease billing: why percentage rent stays out of the recovery pool.
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