BillingOtter is invoicing software for US freelancers, contractors and small businesses: send invoices and estimates, get paid, and see who has paid and who is overdue. Free for 5 invoices a month.
Free plan · No credit card · Cancel anytime
Freelancing is freedom — until admin work takes over. BillingOtter handles the paperwork so you stay in your creative flow.
AI invoice drafts
Describe the work in a sentence — get a polished invoice to review and send.
Professional templates
Six designs with your logo, brand colors, taxes and discounts handled.
Payment tracking
See exactly who has paid and who is overdue, without a spreadsheet.
Free plan · No credit card · Cancel anytime
Acme Corp
#INV-2026-001
$4,200.00
PaidGlobex Systems
#INV-2026-002
$1,850.00
Overdue$24,500.00
Outstanding
$8,240
Expenses
$3,120
See revenue, outstanding invoices and expenses in real time — and make decisions with your numbers in front of you.
Financial dashboard
Income, expenses and cash flow at a glance, always current.
Estimates & purchase orders
Quote the work, order the supplies, invoice the result — one pipeline.
Client records
Every client's history, documents and balances in one place.
Free plan · No credit card · Cancel anytime
Marceline B.
Owner
Josh K.
Finance
Ada L.
Assistant
Invite the people who help run your business and scope exactly what each of them can see and do.
Page-level permissions
Give your bookkeeper finance pages and your assistant just invoicing.
Shared client inbox
Client emails and website enquiries land in one inbox the team can act on.
One workspace
Everyone works from the same clients, products and documents.
Free plan · No credit card · Cancel anytime
Start on the free plan and upgrade only when it pays for itself.
Free plan · No credit card · Cancel anytime