Banking for a Precision Manufacturer With Long Lead Times

Say a customer contract calls for progress payments at 30, 60, and 100 percent of completion, but your raw material supplier requires payment at order time, months before the first progress payment arrives. That gap has to be financed from somewhere, whether that's a cash reserve, a line of credit, or supplier terms you've negotiated, and it's worth sizing deliberately rather than discovering it mid-order, especially on a first-time contract with a new customer whose progress payment habits you haven't tested yet.

A new CNC machine or a custom tooling investment is a capital decision that shouldn't blend into the same account funding this month's material purchases, because doing so makes a single large purchase look like it wrecked an otherwise healthy month. Relay's ability to hold a dedicated capital or equipment account, separate from the operating account paying suppliers and payroll, keeps that distinction visible, and it also gives you a cleaner number to show a lender when you're financing the next piece of equipment.

Equipment financing and working-capital lines for manufacturers are commonly priced off the bank prime rate, which stood at 6.75 percent as of mid-2026¹. On a large equipment purchase financed over several years, even a modest difference in the rate you're offered compounds into a meaningful amount, which is one more reason to keep clean, separate records a lender can review quickly when you're negotiating terms, rather than a blended account they have to pick apart before they can even evaluate the request.

Even with a dedicated account, progress billing only works if you're tracking, per contract, how much you've been paid against how much material and labor you've actually committed to that job. A manufacturer running several contracts at once needs that visibility per contract, not just at the company level, or a well-funded contract can mask a struggling one, especially when the struggling contract is with a newer customer whose payment habits are still an unknown.

For each contract, track these items:

• How much you have been paid so far against the progress payment schedule in the customer contract.
• How much raw material and labor you have already committed to that specific job.
• Scrap and rework costs, since parts that miss tolerance and must be remade quietly compress the contract's margin.
• How payment timing on a new customer compares with a long-standing one, since new relationships often pay more slowly at first.

A smaller shop running a handful of stable, repeat customers with predictable material and payment timing can often manage on a single Mercury account with a manual reserve for known upcoming material orders. Add the structure of separate capital and per-contract accounts once your contract mix gets less predictable or your equipment financing decisions get bigger, rather than building the structure preemptively before it's actually needed.

It's tempting to size the material lead-time gap on a new customer contract the same way you would for a long-standing repeat customer, but a new relationship often comes with slower initial progress payments while both sides work out invoicing details and internal approvals on the customer's end. Padding the reserve estimate on a first contract with any new customer, even a well-funded one, is a small extra step that avoids a real cash surprise mid-order.

Precision work carries a real scrap and rework rate, parts that don't meet tolerance and have to be remade, and that cost is easy to lose inside a contract's overall material spend unless you're tracking it specifically. A contract that looked profitable when quoted, based on an assumed scrap rate, can thin out considerably if the actual rate on that particular job runs higher, whether from a new material, a new operator, or a tighter tolerance than usual. Tracking scrap cost by contract, not just company-wide, shows you which jobs are actually hitting their assumed margin and which ones need a closer look at the shop floor.

Quality certification audits, an ISO recertification or a customer-required quality system audit, are another recurring cost worth budgeting for separately from routine operations, since they tend to arrive on a fixed cycle rather than smoothly across the year and can involve real preparation time from staff who would otherwise be running production. Treating certification costs as a known, calendared expense rather than a surprise keeps an audit cycle from colliding awkwardly with a busy delivery period.