Invoicing for service businesses
Products, services & fixed charges on Net 30
Clean, trade-neutral invoicing for service providers, retail boutiques, and B2B vendors — supporting 32 invoice currencies, products and services, and Net 30 terms with zero bloat.
- Industry Terminology
- Job · Change order · Client
- Priced for Lines
- Service · Materials · Fixed charge
- Standard Settlement
- Net 30 days

A workspace that starts with the words, fields and terms your service business already uses.
A sample document
How an invoice looks in the real world
An illustrative invoice with General Services line items and terms. The names, amounts and notes on it are made up; the notes are the business’s own wording, not BillingMart’s.
INV-2026-5820
Sterling Mercantile Partners
Commercial Account · Attn: Accounts Payable
PO-88219-B / REF-901
A field printed on the invoice
Net 30 Days (Due November 15, 2026)
Cadence: +7d, +14d, +30d
How it bills
The general services billing flow
From the estimate to the payment, the steps this kind of work usually follows.
Quick Order & Invoice Creation
Add products and services from your saved items or bill hourly time, with per-line tax at the rates you set and a customer reference number.
Multi-Channel Delivery
Send clean PDF invoices by email, or by text where texting is on, with a pay link your customer pays by card.
Automated Dunning & Settlement
Payments settle directly to your merchant bank account. Overdue invoices are chased on polite automated cadences on days 7, 14, and 30.
Built for this trade
Universal Simplicity for Small Businesses Everywhere
Everything you need to bill customers and be paid on time
Many small businesses do not fit into narrow industry silos. They sell specialized consulting alongside physical products, manage multiple wholesale purchase orders, or bill project retainers.
BillingMart’s small business engine gives you trade-neutral defaults on standard Net 30 terms. You can invoice in 32 currencies, set each line’s tax treatment at the rates you use, and provide your customers with professional, mobile-friendly payment links.
With zero bloat, intuitive client directories, and automatic reminder cadences, you spend less time formatting bills and more time serving your customers.
What it does for this trade
- Versatile line item flexibility for services, physical products, and fixed charges
- Invoice in 32 currencies, with per-line tax treatment
- A reference field for a PO # or your customer’s own reference on every invoice
- Automatic late payment reminder cadences on days 7, 14, and 30
Instant Configuration
Selecting this industry profile pre-populates all terminology, custom fields, and dunning cadences in your workspace. You retain complete control to edit or expand any setting at any time.
The preset
It already knows the words
Pick this trade when you sign up and everything below is pre-filled. Every value is fully customizable in your settings.
What things are called
- job
- Job
- change order
- Change order
- client
- Client
- invoice
- Invoice
- estimate
- Estimate
On every invoice
- Reference
First-class structured fields rather than an unstructured notes box, printed on the invoice and its PDF.
Terms it starts with
- Payment terms
- Net 30 days
- Numbering
- INV-2026-0001
- Reminders
- day 7, day 14, day 30 after the due date
Common Line Item Presets
Frequently billed items for general services work. Click-to-add on any invoice to save repetitive typing.
- + Service
- + Materials
- + Fixed charge
Start billing your service business
Start on the free plan, with no credit card required to sign up. Every plan and its monthly send limit are on the pricing page.