Invoicing software built for freelancers
You already do the design, writing, dev, or consulting work well. SendBilling handles the part that eats your evenings — sending a professional invoice, billing retainer clients on schedule, and following up on the ones who go quiet — so you get paid without it becoming a second job.
The billing problems every freelancer runs into
None of these are about your craft. They’re about the admin layered on top of it, and they get worse as your client list grows.
Retyping the same client details every project
A new gig lands and you're back to typing a billing address, tax ID, and payment terms into a fresh document — the third time this month for a repeat client.
No real record of what's paid vs. unpaid
Invoices live scattered across email sent folders and a Drive of copied templates, so "who still owes me money" means scrolling back through months of threads.
Chasing late payers is awkward and easy to forget
You don't want to nag a client you like working with, so a follow-up email slips a week, then two — and the invoice quietly ages past 60 days.
International clients and currencies
One client pays in USD, another in EUR, and manually converting rates on a spreadsheet invoice means the numbers don't always match what actually lands in your account.
What SendBilling handles for you
Every feature below is included free during early access — nothing here is gated behind a paid plan.
Invoice generator that remembers your client
Build a branded invoice with your logo, rate, and line items in minutes. Save a client once — name, billing address, currency, tax ID — and their next invoice starts pre-filled instead of blank.
Try the invoice generatorSend a quote first, convert it in one click
Scope a project, send an estimate for the client to approve online, and once they accept, turn it into an invoice without re-entering a single line item.
See online invoicingRecurring retainers on autopilot
Bill a monthly retainer client automatically instead of remembering to send it by hand every 1st of the month — SendBilling generates and sends it on your schedule.
Explore recurring & retainersAutomatic reminders, no awkward follow-up
Turn on reminders for overdue invoices and let SendBilling send the nudge for you — the same polite follow-up every time, with no email you have to write yourself.
See payment remindersA public pay link for every invoice
Each invoice gets a branded link where a client can view, download, and pay. Point the Pay button at your own Stripe, Wise, or bank link — no cut taken on what you earn.
Start freeMulti-currency for clients anywhere
Set a currency per invoice with your own conversion rate, and save currency and tax defaults per client so a USD retainer and a EUR project invoice both come out right.
Start freeWhat a freelance invoice looks like in SendBilling
A generic invoice template gives you a table and hopes you fill it in correctly. A freelance project rarely fits neatly into flat rows — there’s a base fee, hours on top, a revision round the client asked for outside scope, and sometimes a rush turnaround. Here’s a sample invoice for a freelance design project, built the way freelancers actually bill:
| Description | Qty | Rate | Amount |
|---|---|---|---|
| Brand identity design — base project fee | 1 | $1,200.00 | $1,200.00 |
| Additional strategy hours (beyond scoped project) | 4 hrs | $85.00/hr | $340.00 |
| Extra revision round (2 included, this is round 3) | 1 | $150.00 | $150.00 |
| Rush fee — 48-hour turnaround requested | 1 | $100.00 | $100.00 |
| Subtotal | $1,790.00 | ||
| Tax (0%) | $0.00 | ||
| Total due | $1,790.00 | ||
Every line above — the base fee, the hourly overflow, the revision round, the rush fee, and the Net 15 terms — is exactly the kind of line item a spreadsheet template makes you build from scratch each time. In SendBilling, the rate and payment-terms note are saved to the client, so the next invoice starts most of the way filled in.
Need something simpler right now? Try the free invoice generator — no signup required to build and download one invoice. Or start from our free freelancer invoice template.
Retainer clients shouldn't mean a monthly reminder on your phone
If you keep a client on a $1,500 monthly retainer, that's twelve invoices a year you have to remember to build and send on time — every time, for every retainer client on your books. Set it up once in SendBilling and it generates and sends automatically on your schedule, tracked as a retainer rather than mixed into your one-off project invoices, so your reports still show which income is recurring and which came from a single job.
One-off project invoices and estimates work the same way they always have, just faster: quote the scope, the client approves online, and an accepted estimate becomes an invoice without retyping a single line.
Freelancer invoicing FAQ
Is SendBilling really free for freelancers right now?
Yes. SendBilling is in early access, so invoicing, estimates, recurring retainers, automatic reminders, multi-currency, and public pay links are all free and unlimited on every plan. Paid Pro ($4.99/month, first month $1) and Lifetime ($19.99 once) launch later with the same features plus priority support and higher usage limits.
Can I send an estimate before I invoice a client?
Yes. Build an estimate, send it for the client to approve online, and once they accept it, convert it into an invoice in one click — no retyping the scope or line items.
How do retainer clients work versus one-off project invoices?
A retainer bills a fixed amount upfront for a block of ongoing work on a repeating schedule, while a one-off invoice bills a single project once. SendBilling tracks retainers as a separate record type so they don't get mixed into your one-off project income in reports.
Does SendBilling take a cut when a client pays me?
No. SendBilling doesn't process payments or hold your funds. You connect your own Stripe, Wise, or bank link, and the client pays you directly through the public invoice page with zero markup.
Can I bill international clients in their own currency?
Yes. Set a currency per invoice with your own conversion rate, and save a default currency per client so a project for a client in London and one for a client in Berlin each come out in the right currency automatically.
Bill like a freelancer, not a spreadsheet.
Create a free account — no credit card required — or compare every plan on pricing.
See how invoicing, estimates, and reminders fit together on the full features page.
Updated July 2026