Term loans, matched to what they buy: amortisation compared against asset life

A term loan is the plainest instrument in business finance: a fixed sum, paid out once, repaid on a schedule, over a defined period. There is very little to it, which is why the mistakes made with one are almost always mistakes of shape rather than of pricing.

The design decision that matters is how long the loan runs against how long the thing it buys will last. Get that wrong and you will still be paying for equipment you have already scrapped, or straining every month to fund something that should have been spread out.

What to take away

How amortization actually behaves

Each payment on an ordinary term loan does two jobs: it covers interest accrued on the balance still outstanding, and it reduces that balance.

Because interest is charged on what remains, the split moves over the life of the loan. Early on, the balance is large, so most of the payment is interest and little of it reduces the debt. Later, the balance is smaller, so more of each payment goes to principal. The payment can be identical throughout while its composition changes completely.

Three practical consequences follow.

Progress feels slow at first. Owners who check the balance a year in are frequently surprised at how little it has moved. That is the arithmetic, not an error.

Refinancing restarts the pattern. Moving to a new loan puts you back at the front of a new schedule, where payments are again mostly interest. Refinancing can still be the right decision, but the comparison has to be made on total cost from here to the end, not on the monthly payment.

Extra payments are worth most early. Where the loan is amortising and prepayment is permitted, money put in early removes interest that would otherwise accrue for the whole remaining term.

Term length pulls in two directions

Stretching the term lowers the payment and raises the total cost, because the balance stays outstanding longer. Shortening it does the reverse, and adds strain in every month.

Neither is virtuous by itself. A payment that is comfortable in a good month and impossible in a bad one is not cheaper in any sense that matters. A business that fails a covenant or misses a payment has bought a much larger problem than the interest it saved.

The rule that resolves it is not about affordability at all. It is about matching.

Match the loan to the life of what it buys

Debt should retire at roughly the pace the thing it financed loses its usefulness.

Write down what you are buying, how long it will earn, and what you will do at the end of its life. If the loan outlasts the answer, change the loan.

A worked comparison: a five-year asset on two terms

Take an invented machine that will earn for five years, financed with an invented 100,000 at a fixed two-thirds of a percent a month, repaid in equal monthly payments. The figures are for the arithmetic, not a quote.

The ten-year loan looks cheaper every month, but when the machine stops earning, about 59,800 is still owed on it, and replacing the machine means borrowing again on top of that balance. Over its full life the longer loan also costs more than twice the interest. That is the gap between amortisation and asset life, in numbers.

SBA rules build the same idea into the 7(a) program. The term is the shortest appropriate one given the borrower's ability to repay, and it is ten years or less unless the loan finances or refinances real estate or equipment with a useful life exceeding ten years; real estate can run to a maximum of 25 years, including extensions.

Fixed and variable, and what a variable rate is tied to

A fixed rate is set at the outset and stays there. A variable rate moves with a published reference rate plus a margin agreed with the lender.

If you are offered a variable rate, establish four things: which reference it follows, what margin sits on top, how often it resets, and whether there is a floor or a cap. Then find out what the reference has done historically, because that is the part the lender will not editorialise about.

The Federal Reserve publishes current and historical figures for widely used reference rates in its selected interest rates release, including the bank prime loan rate, which the release describes as one of several base rates used by banks to price short-term business loans. That is the sort of source to check yourself rather than take second hand.

Also establish what happens mechanically when the reference moves. Some agreements adjust the payment; others hold the payment and adjust the term or the final balance. Those feel very different in a business with a tight monthly cycle.

Balloons assume something about the future

Some term loans amortize over a long notional period but fall due much earlier, leaving a large final payment. That structure lowers the payment and defers the problem.

The assumption inside it is that you will be able to refinance when the balloon arrives. That assumption gets tested at a moment you do not choose, in credit conditions you cannot predict, with whatever your accounts look like then.

If an offer contains a balloon, make the plan explicit at the outset: what refinances it, what happens if refinancing is not available, and whether the asset can be sold to clear it.

Security, and what it commits

A secured term loan is backed by collateral, which may be the asset being financed or a broader claim over business assets. Secured lending is usually cheaper, because the lender's exposure is lower.

Establish what the security actually covers, whether it extends to assets acquired later, and what has to happen for it to be released. A filing left in place after a debt is repaid is a routine and avoidable obstacle to your next piece of financing, so confirm the release rather than assuming it. In the US that filing is the UCC-1 financing statement, and the release is a termination statement under section 9-513 of the Uniform Commercial Code, which the secured party must send or file within 20 days after it receives an authenticated demand from you once nothing is secured.

Expect a personal guarantee to be requested for a small business, and read it as its own document. Where a government guarantee sits behind a loan, that changes the lender's exposure and not yours, which is set out in SBA loans.

Size the loan from a real list

Borrow the amount the purpose needs, not the amount you are offered.

Build the figure from a written list, not a round number. Include the item, delivery, installation, building work, and training. Then add tax, included licenses or software, and working capital to operate it until it earns.

Costs that arrive alongside a purchase can turn a correctly sized loan into an undersized one. The Small Business Administration's guide to calculating startup costs is a reasonable free framework for assembling that list.

Then borrowing slightly more than the list, deliberately, is often wiser than borrowing exactly the list and discovering a gap. What is rarely wise is taking the maximum offered because it was offered.

Stress-test the payment before you sign

Run the proposed payment against your actual trading history rather than a forecast.

Take your worst three consecutive months from the last couple of years and check whether the payment would have been made without difficulty. Ask what would have to be true for that to happen again, and whether anything in the plan makes it more likely.

If the loan works only in an average month, it does not work. Average months are an artifact of arithmetic, and nobody trades in one.

Also decide in advance what you would do at the first sign of trouble. Lenders have far more options before a missed payment than after one, and a conversation started early is about restructuring while a conversation started late is about default.

Common questions

Is a lower monthly payment a better deal?

Not on its own. A payment can be lowered by extending the term, which raises the total cost, or by deferring principal into a balloon, which moves the problem. Compare what actually reaches your account against everything that leaves it over the full life of the loan.

Should I take a fixed or a variable rate?

It depends on how much certainty your cash flow needs and how long the loan runs. A business with thin margins and a tight monthly cycle values predictability more than one with headroom.

Whatever you choose, learn the variable option's mechanics before rejecting it, since the reference, margin, reset frequency, and any cap decide how much movement you face.

Does paying off a term loan early save money?

On an amortising loan, yes, because interest accrues on the outstanding balance. Check the agreement for a prepayment charge first, since that is what removes the benefit. Products priced with a fixed fee rather than accruing interest behave differently and early repayment saves nothing.

How long should the term be?

As long as the working life of what you are financing, and no longer. That answer beats any rule of thumb about payment size, because it is the only one tied to why you are borrowing at all.