What Is Time and Billing Software for Accountants?
Time and billing software for accountants connects time capture, write-off management, billing review, and invoice generation in a single workflow. Accounting firms use it to eliminate the spreadsheet reconciliation step between timesheets and client invoices, protect revenue from leakage, and produce accurate bills without manual rework.
Quick Answer: The best time and billing software for accountants supports client/matter codes, tiered billing rates by staff level, a partner billing review queue, write-off tracking with reason codes, direct invoice generation, and integration with Xero, QuickBooks, Sage, or MYOB — all in one connected system.
The gap between a completed client matter and a sent invoice is where accounting firms quietly lose money. Time entries sit in one place, billing adjustments in another, and invoices get assembled by hand from two different sources. Every manual step is a place where hours get missed, write-offs get forgotten, and billing rates get misapplied.
Dedicated time and billing software closes that gap. This guide covers what to look for when evaluating tools and how the workflow should function once the right software is in place.
What Does Time and Billing Software for Accountants Do?
Time and billing software for accountants handles the full workflow from time capture to invoice — in one connected system. The core components are:
- Time capture: Staff log hours against client matters in real time or via end-of-day entry
- Billing review: Partners review time entries before billing, adjusting rates or writing off hours that should not be charged
- Write-off management: Non-billable time and courtesy discounts are tracked separately so they appear in profitability reports
- Invoice generation: Reviewed time entries convert directly into itemised client invoices
- Accounting integration: Invoices sync to QuickBooks, Xero, Sage, or MYOB without re-keying
Without this connection, accounting firms rebuild invoices by copying data from timesheet reports into billing platforms by hand. That process takes hours per billing cycle and introduces errors that slow client payment.
How Is This Different from General Time Tracking Software?
General time tracking tools record hours. Time and billing software for accountants handles what happens after the hours are recorded.
The key differences are:
| Feature | General Time Tracker | Time and Billing for Accountants |
|---|---|---|
| Time entry by client and matter | Sometimes | Always |
| Billing rate tables by role and client | Rarely | Core feature |
| Partner review before invoicing | No | Built in |
| Write-off tracking against profitability | No | Core feature |
| Direct invoice generation | No | Built in |
| Practice management integration | No | Common |
For a broader overview of the time tracking category, see our time tracking software guide. For accounting-specific best practices around time logging, see time tracking for accountants.
What Features Should Accounting Firms Require?
Matter Codes and Client Taxonomy
Every time entry should tag to a client, matter, and service type. This is non-negotiable. Without client/matter codes, billing review becomes a manual matching exercise and reporting by service line is impossible. Look for tools that enforce matter code entry at the point of time capture — not as a retroactive step.
Rate Tables by Staff Level and Client Agreement
Accounting firms rarely bill at a single rate. Partners, managers, senior accountants, and junior staff each carry different billing rates. Some clients have negotiated reduced rates for certain service types. The software must support a rate table that applies automatically based on staff level and client agreement — not a fixed hourly rate applied to everyone.
Billing Review and Approval Workflow
Before any time entry becomes an invoice, a partner or billing manager needs to review it. The review step lets the firm:
- Write off hours for client relationship reasons without losing track of them
- Correct entry errors before they appear on a client invoice
- Apply courtesy adjustments documented in client engagement letters
- Flag matters that have reached or exceeded budget
Tools that skip the review step push billing errors onto the invoice and create disputes. Look for a clear queue of time entries pending review, with one-click write-off and rate override. If you are already seeing discrepancies, see billable hours not matching the invoice for common causes and fixes.
Write-Off Tracking
Write-offs are not revenue. But they are not invisible either. When a partner writes off two hours on a matter as a goodwill gesture, that cost needs to show up in the profitability report for that engagement. Write-offs without tracking hide the true cost of client relationships and make it impossible to assess whether fixed-fee engagements are priced correctly.
Good time and billing software records write-offs separately from billable time, with a reason code, so partners can review write-off patterns by client and by matter over time.
Direct Invoice Generation
Once time entries clear the review queue, the invoice should generate automatically. The software should produce a draft with itemised line items, apply the client’s agreed billing increments, calculate totals, and format the output ready for delivery — without the billing manager touching a spreadsheet. For a walkthrough of the full time-to-invoice workflow, see our invoice from tracked hours guide.
Integration with Accounting Platforms
Invoices that live only inside the billing software are not useful. The completed invoice needs to sync to the firm’s accounting platform — QuickBooks Online, Xero, Sage Intacct, MYOB — so that payment tracking, cash flow reporting, and reconciliation happen in one place. Manual export and re-import breaks the connection and introduces version control problems. For a step-by-step guide, see connecting time tracking to Xero invoicing and our guide to payroll and time tracking integration.
Reporting by Service Line and Partner
Partners need to see profitability by client, matter, service type, and staff member. Time and billing software should produce reports that answer:
- Which clients are most and least profitable after write-offs?
- Which service types are over-serviced relative to the fee charged?
- Which matters are approaching budget limits?
- What is each partner’s billable rate achievement versus target?
Without this reporting layer, billing software is just a fancier timesheet.
How Should the Time-to-Invoice Workflow Function?
A well-designed time and billing workflow for accounting firms follows six steps:
1. Time capture (staff) Staff log hours as they work — against the client code and matter type. The best tools allow entry via desktop, mobile, or browser timer so hours are captured at the point of work, not reconstructed at the end of the week. Reconstructed timesheets consistently undercount by 10–20%.
2. Matter budget tracking (automatic) As time accumulates against a matter, the system compares logged hours against the agreed scope or budget. When a matter approaches its budget, the partner is alerted before the work is completed — not after the invoice has already been sent.
3. Billing review queue (partner/manager) At the billing cycle — monthly for most firms, on matter completion for project-based work — the partner reviews the time entries for each client. Each entry shows the staff member, date, duration, service type, and note. The partner can approve as billed, write off selectively, adjust the rate, or move the entry to a future period. This step takes 15–30 minutes per client, not hours.
4. Write-off recording (automatic) Any hours removed from billing in step 3 are recorded as write-offs with a reason code and remain visible in profitability reports. They do not appear on the client invoice, but they are not erased from the firm’s cost data.
5. Invoice generation (automatic) Approved time entries generate a draft invoice with itemised line items. The invoice includes client details, matter description, time period, hours per service type, rate applied, and total. The billing manager reviews the draft for formatting and compliance, then approves for delivery.
6. Accounting platform sync (automatic) The approved invoice syncs to QuickBooks, Xero, Sage, or MYOB. Payment tracking, receipts, and overdue reminders are handled by the accounting platform. The time and billing software’s job ends at the approved invoice.
How Do Write-Offs Affect Billing Profitability?
Write-offs are one of the most misunderstood aspects of accounting firm billing. Firms that do not track write-offs accurately cannot assess the true profitability of any client relationship.
Consider a matter that generates £3,000 in billed time at £150 per hour — 20 hours billed. But the actual time logged was 28 hours. Eight hours were written off. The true effective rate for this matter is not £150 — it is £107 per hour.
If that write-off pattern repeats across every matter for this client, the firm is systematically undercharging relative to the time invested. Write-off reporting by client reveals this pattern. It also creates the evidence needed for a pricing conversation with the client: either the scope needs adjustment, or the fee needs to increase.
Time and billing software that does not track write-offs just hides that cost. The money is still being spent — you just cannot see it.
What Should Accountants Avoid When Selecting Billing Software?
Surveillance-heavy tools built for hourly workforce monitoring Screenshot capture, keystroke logging, and activity monitoring are designed for managing large hourly workforces. They add friction, signal distrust to professional staff, and rarely integrate with billing workflows. Accounting firms should select tools that support billing accuracy, not employee surveillance.
Spreadsheet-based billing workflows A time tracker that exports to CSV, which then imports to a billing template in Excel, is not a billing workflow — it is a manual process with extra steps. Every handoff between systems is a place where data gets lost, formatted incorrectly, or simply skipped. If the path from time entry to invoice involves a spreadsheet, the process will break under workload pressure.
Tools without write-off tracking Any billing tool that treats write-offs as deleted time is hiding profitability data. Write-offs must be captured with reason codes and remain visible in reporting.
Single-rate pricing If the software only supports one billing rate per staff member or per project, it cannot handle the nuanced rate structures that accounting firms operate: tiered staff rates, client-negotiated agreements, matter-type-specific rates, and time-of-year overrides for premium services.
Frequently Asked Questions
What is the best time and billing software for accountants?
The best tool for an accounting firm supports client/matter codes, tiered billing rates by staff level, a partner billing review queue, write-off tracking with reason codes, direct invoice generation, and integration with your accounting platform. The right choice depends on firm size, existing practice management setup, and whether you need integration with Xero, QuickBooks, Sage, or MYOB.
How do accountants track write-offs in billing software?
Write-offs are recorded when a partner reduces billed hours during the billing review step. Good billing software captures the original logged time, the billed amount, and the difference as a write-off with a reason code. Write-offs remain visible in profitability reports so partners can track write-off patterns by client and matter over time.
What billing increments do accounting firms use?
Most accounting firms bill in six-minute or fifteen-minute increments. The increment is set per client in the engagement letter and applied automatically by billing software at the line-item level. Applying increments at the session level (rounding each individual entry separately) produces smaller totals than applying them at the line-item level.
Can time and billing software replace practice management software?
Not typically. Practice management software handles matter opening, document management, compliance workflows, and staff scheduling. Time and billing software handles time capture through invoice. Many firms run both, with the billing software integrated into the practice management platform. Some all-in-one platforms combine both functions for small to mid-sized firms.
How does time and billing software integrate with Xero or QuickBooks?
Integration works via API or direct connector. Approved invoices from the billing platform sync to the accounting system as draft invoices or accounts receivable entries. Payment receipts recorded in Xero or QuickBooks update the billing platform so partners can see outstanding and paid matters. The integration eliminates manual re-entry and keeps both platforms in sync.
How do write-offs affect WIP (work-in-progress) reports?
Work-in-progress reports show the value of unbilled time — time recorded but not yet invoiced. Write-offs reduce the WIP value for a matter when the partner decides those hours will not be billed. Accurate WIP tracking requires that write-offs are recorded in the same system as time entries so the WIP figure reflects only genuinely billable work in process.
Connect Time to Billing Without the Spreadsheet Step
Accounting firms that run their time and billing in a single connected workflow bill faster, recover more revenue, and spend less time chasing invoice errors. Keito connects AI-assisted time capture, billing review, and invoice export in one platform built for professional services teams.