OnBrioFor Law Firms
Billing software built for small law firms.
Track billable hours, send professional invoices, manage retainers, and deliver documents securely — all in one platform that replaces your billing spreadsheets and disconnected tools.
Join waitlist→Earn 20% off your first payment
The problems every small law firms knows.
Billable hour tracking is still a spreadsheet
You log time in a spreadsheet, calculate manually, build the invoice in Word, and email a PDF — then chase payment 45 days later. Every matter. Every month.
Retainer reconciliation takes hours
Tracking which clients have retainer balances, how much has been billed against them, and when to replenish is a manual accounting exercise that should be automated.
Sharing sensitive documents is a security risk
Sending confidential legal documents over email has no audit trail. You have no record of when the client opened a file or whether they actually reviewed it.
Built for how small law firms actually work.
Every feature designed around your specific workflow — not bolted on.
Billable hour tracking → invoice in one click
Log time directly against a matter or client. When billing, OnBrio generates the invoice from your entries — descriptions, rates, and totals — automatically.
Retainer billing and trust accounting
Set up retainers once. OnBrio tracks the balance, bills against it automatically, and notifies you when it needs replenishing. No manual reconciliation.
Secure document portal for every client
Each client gets an encrypted, access-controlled portal for agreements, briefs, and reports. Full audit log: who opened what, and when.
Engagement letters with e-signature
Send professional engagement letters and fee agreements with legally binding e-signature built in. No printing, no scanning, no PDF email chains.
Online payment via Stripe
Clients pay invoices online by card or ACH. Payment is collected faster, reconciled automatically, and receipts are sent without you lifting a finger.
Matter and revenue overview
See which matters are most profitable, which clients have outstanding balances, and your projected revenue for the next 90 days — at a glance.
Your workflow, end to end.
1
Open a new matter and send an engagement letter
Create a client and matter in OnBrio, draft an engagement letter with your fee structure and retainer terms, and send it for e-signature — all from one workspace.
2
Track billable time as you work
Log hours directly against each matter. Add descriptions, apply your hourly rate, and mark entries as billable or non-billable.
3
Share documents securely in the client portal
Upload briefs, agreements, or reports to the client's portal. They access via a secure link — no login required. You get a notification when they open it.
4
Generate and collect invoices automatically
At billing time, one click turns your time entries into a professional invoice. Client pays online. Retainer balance updates automatically.
“OnBrio replaced my billing spreadsheets and FreshBooks. I get paid faster, my clients love the portal, and it took one afternoon to set up.”
Sarah Okonkwo
Principal, Okonkwo Legal
3x faster invoice collectionFAQ
Common questions.
OnBrio supports the core requirements for small firm legal billing: itemized time entries with descriptions and rates, trust/retainer accounting, UTBMS-style billing codes can be added as custom fields, and full audit trails on all invoices and documents. OnBrio is not a dedicated legal practice management system like Clio — it is best suited for small firms and solo practitioners who want a simpler, more affordable alternative.
Yes. Each client can have a retainer set up with an opening balance. As you bill time against that client, OnBrio deducts from the retainer balance automatically. You are notified when the balance drops below a threshold you define, and you can send a replenishment invoice with one click.
Each client gets a private portal accessible via a secure link. You upload documents and they receive a notification. Every document access, view, and download is logged with a timestamp and user identifier. Documents are stored with encryption at rest and in transit. For highly sensitive matters, you can require the client to set a personal access PIN.
Yes. You can create engagement letters, fee agreements, and NDAs using OnBrio's document editor, then send them for legally binding e-signature. Each signature is recorded with the signer's name, email, IP address, and timestamp. A signed PDF is automatically emailed to both parties and stored in the client's portal.
The Solo plan is $29/mo (billed annually) and covers unlimited clients, billable hour tracking, invoicing with online payment, retainer billing, e-signatures, and the client document portal. For small teams of 2–5 attorneys, the Agency plan at $69/mo adds multiple seat access and advanced automations.
The OS for small law firms.
Start free. No credit card. Set up in 30 minutes.
Join waitlist→Earn 20% off your first payment