Interim rent: the equipment lease payment nobody warned you about

Interim rent is what you pay for the days between the lessor's money going out and the lease term formally beginning. Most leases start on the first day of a month or a quarter. Equipment does not.

How it is calculated

The typical mechanic is a daily charge equal to one-thirtieth of the monthly payment, applied from the funding date to the commencement date.

Illustrative only — your monthly payment is $2,400, so the daily interim charge is $80. The lessor pays your vendor on 12 March. The lease term commences on 1 April. That is 20 days of interim rent, from 12 March through 31 March inclusive: $1,600, due at or shortly after signing.

That is a real number and it usually arrives alongside whatever advance payments the document requires, in the same week you are paying for freight and installation.

Why it exists

The lessor's capital left on 12 March. It is entitled to be paid for the use of that money from 12 March. There is nothing improper about the charge itself.

The problem is presentation. A payment schedule showing 60 payments of $2,400 does not show interim rent. The obligation is in the documents, and it is often in a definitions section rather than the payment section.

The version that costs more

Read carefully what date the interim period starts from. There are two common triggers and they are not the same:

On a long-lead machine, that gap can be substantial. The charge is defensible from the lessor's side — its money really is out — but you need to know about it when you are modelling the project, not when the invoice arrives.

Where the commencement date comes from

Some leases commence on the first day of the month following delivery. Some commence on the first day of the quarter. A quarterly commencement can produce up to about three months of interim rent, which on the example above would be roughly $7,200. Timing your delivery a few days later can move the commencement date a whole period earlier or later, in either direction. It is worth asking the lessor to run both scenarios before you set a delivery date.

What to ask before signing

1. Is interim rent charged on this schedule? Get a yes or no in writing.
2. What date does it accrue from — funding, invoice, or progress payments?
3. What is the daily rate in dollars?
4. What is the commencement date rule, and what would it be for a delivery in the first week versus the last week of the month?
5. What is the total cash due at signing — advance payments, documentation fee, filing fee, interim rent, sales tax?

Question five is the one to insist on. Ask for a single figure covering everything you must pay before the first regular payment. A lessor who cannot produce that number has not finished quoting you.

If you have already signed

Check the schedule and the master lease for the definition of interim rent or interim period, and check the commencement date. If the charge is there, it is owed. If the amount looks wrong, ask for the calculation — funding date, commencement date, daily rate, number of days. Lessors make arithmetic errors like everyone else, and an incorrect number of days is the most common one.

What the commencement rule is worth

Illustrative only, on the same $2,400 monthly payment and $80 daily charge, with a lease that commences on the first day of a quarter.

Fund on 14 January and the term commences 1 April: 77 days of interim rent, or $6,160.

Fund on 28 March and the term commences 1 April: 4 days, or $320.

A ten-week difference in funding date changes the cash due at signing by $5,840, on an identical lease for an identical machine. Nothing about the equipment, the price or the monthly payment moved.

Which is why the commencement question is not a detail. If your delivery has even a fortnight of flexibility, ask the lessor to price both dates before you fix one.

Progress payments, where it gets expensive

On a machine built to order, a lessor may pay the manufacturer in stages. If interim rent accrues from the first progress payment, the clock can start six months before the equipment exists.

Illustrative only — at the same $80 a day, 180 days of interim rent before delivery is $14,400, payable on a machine that has not yet produced anything.

The charge is defensible, because the lessor's money really is out. The problem is that it is almost never in the project model. If you are financing long-lead equipment, ask specifically whether interim rent accrues on progress payments, and if it does, ask for the expected payment dates so the figure can go into your own forecast.

Where to find it in the document

The wording varies and the charge is rarely under a heading that says interim rent. Search the master lease and the schedule for:

• "interim rent", "interim period", "pro-rata rent", "stub period"
• "Commencement Date", "Acceptance Date", "Funding Date", "Delivery Date" — and establish which one the term runs from
• "Advance Payments", or "first and last", which is a separate charge and is regularly confused with this one
• "documentation fee", "filing fee", "UCC fee", and sales or use tax

The definitions section is usually where the commencement rule lives. The payment schedule, which is what people actually read, almost never shows it.

A note on the accounting

On a true lease, interim rent is generally deductible as rent in the period it relates to, like any other rent. On a conditional sale dressed as a lease, the treatment follows the sale.

That is the same distinction that decides your depreciation position, so if you are already asking your accountant which structure the document creates, ask about the interim charge in the same conversation rather than in a separate one later.