Invoice Payment Terms Explained: Net 7, Net 15, Net 30

Payment terms are the most underused lever on a contractor's invoice. The work is done, the numbers are right, and then a vague bottom line, payment due upon completion, hands the timing decision to the client's payables cycle, which runs on its own calendar and owes you nothing until you ask. This guide defines the standard terms precisely, shows how the due date is computed from the invoice date, explains which terms fit which kinds of jobs and clients, and connects terms to the cash-flow reality of a business that buys materials before it gets paid. The examples follow Toolfyra's contractor invoice template, which offers due on receipt and Net 7, Net 15 and Net 30, computes the due date automatically from the invoice date you enter, and prints both on the invoice so the clock is in writing. One honesty note: some states regulate late fees and prompt-payment rules, so this guide sticks to terms and timing; where a fee for late payment is part of your practice, check your state's rules and your contract language first.

CHAPTER 01What the Standard Terms Mean

Due on receipt means the invoice is payable immediately upon delivery; there is no grace period and the clock starts the day the client receives it. Net 7 means payment in full within 7 calendar days of the invoice date; Net 15 is 15 days; Net 30 is 30 days. The word net refers to the full amount due with no discount applied. These four cover the overwhelming majority of contractor invoices, and the first three are the ones most service businesses should actually consider.

The due date is arithmetic, not interpretation: invoice date plus the term's days. An invoice dated March 3 with Net 15 terms is due March 18; the same invoice with Net 30 is due April 2. Printing the computed date removes the argument about when the clock started and whether the client's payables calendar measured from receipt, approval, or the alignment of the stars. The template computes and prints the date from your invoice date and term selection for exactly this reason.

One nuance worth writing into your own process: calendar days versus business days. The plain convention is calendar days, and business-day terms should say so explicitly if you ever use them, because a term that means one thing to you and another to a payables clerk is a term that will be litigated informally. Whatever you choose, print it plainly and apply it identically to every client.

CHAPTER 02Matching Terms to the Job

Terms are a pricing decision as much as an administrative one, because your money sits with the client for the term's duration. Small residential jobs with materials you fronted fit short terms: due on receipt or Net 7 on the balance after the deposit reflects that you carried the load and the work is done. Punch-list completion and warranty framing matter here: payment terms apply to the completed scope, and the deposit guide in this series covers how retained amounts interact.

Net 15 is the quiet workhorse for ongoing residential and small commercial work: long enough to fit a client's approval cycle, short enough that your materials outlay does not become free financing. Net 30 is standard in commercial and government-adjacent work, where large payables run monthly and your invoice must simply be in the batch. Taking Net 30 on a big job is acceptable if priced for it; taking it on small jobs with fronted materials is a loan you did not agree to make.

Terms also signal professionalism, which is underrated. An invoice with stated terms and a printed due date reads as a business that expects to be paid on time, and payables clerks triage accordingly: dated, termed invoices route into the payment batch; open-ended ones route into the needs-attention pile, which is where cash flow goes to die.

CHAPTER 03Terms Meet Deposits and Stages

On jobs with deposits, the terms apply to the balance, not to money already collected, and the invoice should make that visible. In the worked example, the invoice total is $1,109.60 and a 30 percent deposit of $332.88 was collected before work began, so the balance due is $776.72 and the printed terms govern that balance. A client should never have to ask whether the terms refer to the total or to what is actually owed.

Progress billing changes the tempo rather than the logic: each stage invoice carries its own date, its own line items for the stage, and its own terms, so a three-stage job can run Net 15 per stage with the due dates marching behind the work. The deposit guide in this series covers the sequencing in detail; for terms purposes, the rule is that every invoice stands alone with a printed due date, and no stage invoice ever references an undefined later settlement.

Final invoices on multi-stage jobs deserve the strictest terms you use, because the leverage is lowest after the work is complete and accepted. Due on receipt or Net 7 on the final balance, with the deposit and prior stage payments shown as already applied, is the standard pattern, and the printed arithmetic, prior payments subtracted, balance stated, is what lets a payables clerk release the last payment without a meeting.

CHAPTER 04How Terms Shape Cash Flow

The cash-flow math of terms is the math of working capital: materials bought today, labor paid weekly, client payment on the term's schedule. On a job where you front $280 of materials and finish in a week, Net 7 recovers your outlay within about two weeks of starting; Net 30 means financing the materials and the labor gap for a month on every job, simultaneously, across every active client. Multiply by crew size and the reason contractors feel rich on paper and broke in the bank becomes arithmetic.

Shorter terms are also a screening device, and the response to them is diagnostic. Clients who pay Net 7 invoices on time are clients who value the relationship and the crew; clients who stretch even Net 30 tell you who they are before the project grows. Adjusting terms per client, tighter for the slow, standard for the reliable, is not punitive; it is pricing the risk you actually observed rather than the risk you assumed.

Where a client's standard terms exceed your tolerance, negotiation beats resentment: deposits sized to cover the fronted materials, stage billing that shortens each exposure window, or a price that reflects the financing you are providing. Terms are part of the deal, and deals are negotiable in both directions; what is not negotiable is the alternative, which is discovering your real terms after the money is already out the door.

CHAPTER 05Enforcement: The Clock After the Due Date

Terms only govern behavior if the due date has a consequence, and the consequence ladder is boring on purpose: a polite reminder at due date, a statement of account at seven days, a phone call at fourteen, and only then whatever your contract's late-fee clause provides. The ladder works because each step is cheap and documented, and because most late payments are process, not malice: the invoice missed an approval, the checker was out, the batch already ran.

Where your contract provides late fees, know your state's rules before relying on them; several states cap or regulate interest on late commercial payments, and the invoice-late-fee calculator on Toolfyra computes what a stated rate accrues to, which is useful for statements and for deciding whether chasing a small balance is worth the hours. The calculator prices the fee; your contract and state law decide whether you may charge it.

The final discipline is consistency: the same terms on every invoice, the same ladder after every due date, the same records of what was sent and when. Consistent terms teach clients how you operate, and clients operate accordingly. The template prints the terms and the computed due date on every invoice it builds, and the habit of computing the date yourself, one calendar flip, keeps the claim enforceable even when the tool is not open.

🔑 Key takeaways

• Due on receipt means payable immediately; Net 7, Net 15 and Net 30 mean full payment within that many calendar days of the invoice date.
• The due date is invoice date plus the term's days, and it should be printed on the invoice, computed, not implied.
• Match terms to exposure: short terms for small jobs with fronted materials, Net 15 for ongoing work, Net 30 priced into commercial jobs.
• On deposit jobs, terms apply to the balance after the deposit ($776.72 on the $1,109.60 example), and the invoice should show that arithmetic.
• Every stage invoice stands alone with its own date, lines and due date; final invoices get the strictest terms because leverage is lowest at the end.
• Enforcement is a ladder: reminder, statement, call, then any contract late fee your state's rules allow; consistency teaches clients your clock is real.

❓ Frequently asked questions

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