Why 'Net 30' Doesn't Work for Most Field Service Businesses
Net 30 shows up on a lot of invoice templates by default, which makes it feel like the standard, professional choice. For a field service business — where the work itself is usually completed and finished in a single visit or a short project — it's worth asking where that habit actually came from, and whether it fits.
Net 30 was built for a different kind of transaction
Thirty-day terms come out of business-to-business purchasing, where a company buys inventory or materials it needs to resell or use before it has the revenue to pay for them, and both sides have finance departments to manage the gap. A homeowner or small business client getting their exhaust hood cleaned or a fence repaired isn't in that position — there's no inventory cycle that justifies a month-long float.
Thirty days is a long time to be unpaid on completed work
You've already paid for materials, already paid your crew, already burned the fuel and the day. Net 30 means the business fronts all of that for a full month before seeing a dollar back — on every single job, simultaneously, if you're doing steady work. For a business without deep cash reserves, that's a month-long gap that has to be covered by something, usually the owner's own runway.
It trains clients to treat payment as optional for a month
Once net 30 is the stated term, "day 29" becomes the normal, expected time to pay — even for a client who could have paid immediately. Shorter, clearer terms don't just get you paid faster on average; they remove the month of ambiguity where a client isn't technically late but also hasn't paid.
When longer terms genuinely make sense
Recurring commercial contracts — a property management company with monthly landscaping across several sites, for example — are a fair exception, because there's an ongoing relationship and a predictable billing cycle both sides understand. The mistake is defaulting every client to those terms, including one-off residential jobs where there's no such relationship to justify the wait.
What to use instead
For most one-off or short-project field service work, due on completion (or due on receipt of the invoice) is both more honest about your actual cash needs and easier for a client to understand — there's no math to do, no date to track, just "the work is done, here's what's owed." Save longer terms for the recurring commercial relationships where they're actually earned.