Your personal AI Legal Bookkeeper.

Acctivity gives every fee earner an always-on AI Legal Bookkeeper that captures billable work automatically, remembers exactly how each client likes to be billed, and publishes invoices directly to your ledger.

Acctivity legal billing dashboard on a laptop

Your billing preferences, remembered.
Your invoices, handled.

Every client has preferences. Every matter has its own billing logic. Acctivity learns exactly how your firm operates, from fee caps and partner rates to how each client likes to be invoiced, and applies that knowledge automatically.

Every fee earner gets the autonomy to finish their own billing the moment work is done.

Without the back-and-forth or the admin.
Revenue recovery

Capture billables in the moment, not at month end.

Most firms lose hours of billable time every week to poor capture.

Acctivity monitors your documents, tasks, calendar and email in real time, logging every billable activity and linking it to the correct matter the moment it happens. Your records are accurate before you leave the office.

Your week so far

Captured Slipping away

1:1 support

A dedicated AI Legal Bookkeeper for every fee earner in the firm

Zero wait-time

Generate client-ready invoices the moment work is completed

Revenue boost

Recover billable time that usually slips through the cracks

Meet Tivi

Set your preferences once.
Acctivity handles the rest.

Try Tivi now
How it works

AI billing built for law firms.

Billable Capture

Billable Capture

Acctivity monitors your documents, tasks, calendar and email to capture every billable moment automatically. Time entries are written, assigned to the correct matter and ready for your review, with no timer in sight.

New activity
Cancel
Save and new
Save
Matter
Units
6 minutes
8
Time spent
00:48:00
Description
Prepare correspondence setting out recommended next steps
Status
Billable
Not billable
Let AI decide
Acctivity billable capture — new activity entry form
Invoice preferences

Invoice preferences

Tell your AI Legal Bookkeeper how to structure each invoice, which costs to include and how each client likes to be billed. It remembers your preferences and applies them consistently, every time.

Hi! I’m Tivi
What tasks can I help you with today?
Our junior lawyer Emily Hathorne is working on this matter, please add a 15% discount on any work she completes.
AI can make mistakes. Consider checking important information.
Fetching staff
Completed
Set Billing Rule
Completed
Remember Memory
Completed
Collapse
A 15% discount has been saved for all billable work completed by Emily Hathorne on this matter.
Also remember to keep the billing descriptions very detailed for the client on this matter
Remember Memory
Completed
Collapse
I'll use detailed, client-facing billing descriptions for this matter.
Acctivity invoice preferences — Tivi assistant conversation
Sync with Xero

Sync with Xero

Acctivity consolidates all fees, disbursements and costs into invoices and publishes them directly to your ledger, eliminating manual data entry and the reconciliation headaches that come with it.

New prompt
Cancel
Create prompt
Prompt title
Prompt type
Set as default prompt
When to use
General use for all client invoices
Description

Prepare a clear, professional client invoice for all unbilled work on the matter. Include all appropriate unbilled fees and costs. Use concise, client-friendly descriptions that clearly explain the work completed and the value provided.

Group invoice items under the following section headings where applicable:

  • Activities

  • Professional Fees

  • Disbursements

Keep related items together within each section and present entries in chronological order.

How do you want your invoice to appear in Xero?
Prompt: General Invoices
Invoice prompt applied successfully.
Acctivity Xero prompt — new prompt setup and assistant confirmation
Enterprise security

Built on a certified, enterprise-grade security foundation.

SOC 2 Type 2

Independently audited security, availability and confidentiality controls (AICPA).

AICPA SOC2 logo

SOC 3

Public-facing security assurance report.

SOC3 certification logo

CASA Tier 3

Cloud Application Security Assessment at the highest assurance tier.

CASA Tier 3 logo

Data Privacy Framework

Certified under the EU-U.S. Data Privacy Framework for international data transfers.

DPF logo

Built around real legal practice

“In a busy practice, there's real value in capturing billable activity as the work happens and turning it into structured descriptions a lawyer can review, adjust and finalise quickly.”

“Acctivity connects directly into Xero and can push the work straight through into an invoice. That makes the workflow feel much more practical, because it is not just capturing the work, it is helping move it all the way through to billing.”

“It changes time recording from a retrospective exercise to a contemporaneous one. That means less time lost, more accurate billing, and greater consistency across the firm.”