Time and Billing Software for Accountants

Keito Team
29 May 2026·12 min read

Compare time and billing software for accountants by time capture, write-offs, billing review, invoice generation, and accounting integration.

Billing & Invoicing

What Is Time and Billing Software for Accountants?

Quick Answer: Time and billing software for accountants records work against clients and matters, applies staff and client rates, sends entries through partner review and write-off tracking, then turns approved time into invoices. The best fit also syncs those invoices to the firm’s accounting platform without spreadsheet re-entry.

That connected record helps accounting firms protect billable time, apply the correct rates, and produce accurate client bills without reconciling separate timesheet and invoicing systems by hand.

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 — sometimes written time & billing for accountants, and also called time recording and billing software, time and fees software, an accounting time and billing system, or simply a time and billing system — closes that gap. It handles both hourly matters and fixed-fee engagements, turning recorded time into accurate invoices without a manual reconciliation step. This guide covers how the workflow should function once the right software is in place; for a buyer-focused comparison of billing models, fixed-fee leakage, and invoice confidence, see our guide to accounting firm billing software.

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, and to compare tools feature by feature, see our time tracking software for accountants buying guide.

Is Time Recording and Billing Software the Same Thing?

Yes — time recording and billing software for accountants is the same category this guide describes. “Time recording” is the more common term in UK and Irish practices, while US firms tend to say time tracking; some vendors also market the category as time billing and invoicing software. Whatever the label, the test is identical: hours recorded against client and matter codes must flow through billing review and write-off tracking into an itemised invoice without a spreadsheet in between.

The label matters only when it hides a gap. A tool that describes itself as time recording software but stops at the timesheet — no rate tables, no partner review queue, no invoice generation — belongs in the general time tracking category above, not in time and billing.

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. In Keito, this maps to the built-in timesheet and expense approvals: submitted hours wait for a manager’s sign-off before they can be invoiced. For how that submission-and-review chain works at the timesheet level — structured entry, the review queue, and the audit trail behind every hour — see timesheet software for accountants. 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 reach 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. Keito syncs invoices generated from approved time directly to Xero and QuickBooks, and can take payment on those invoices via Stripe. Sage Intacct users should define their time tracking integration and reviewed handoff before moving live billing data. 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 time and billing software for accountants?

Time and billing software for accountants connects client and matter time entries to billing review, write-off tracking, and invoice generation. It gives the firm one record from completed work to approved invoice, without rebuilding bills in a spreadsheet.

How do you compare time & billing software for accountants?

When you compare time & billing software for accountants — or read reviews of CPA time and billing systems — weigh the same six things every accounting time and billing workflow depends on: whether time entry enforces client and matter codes, whether billing rates can be tiered by staff level and client agreement, whether there is a partner review queue before invoicing, whether write-offs are tracked with reason codes, whether invoices generate directly from approved time, and whether the tool syncs to Xero, QuickBooks, Sage, or MYOB. A tool that handles all six runs the full workflow in one place; one that misses several leaves you reconciling time and invoices in a spreadsheet.

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.

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.

What software lets accounting firms generate invoices from time or fixed-fee work?

Software built for accounting firms generates client invoices directly from approved time entries, fixed-fee engagement schedules, or a mix of both. For hourly matters, reviewed time entries convert into itemised line items at the agreed rate. For fixed-fee engagements, the agreed fee is billed on a schedule while time is still recorded so partners can assess whether the work was profitable. In either case, the finished invoice syncs to the accounting platform so payment tracking and reconciliation stay in one place.


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, approval-based billing review, and invoice sync to Xero and QuickBooks in one platform built for professional services teams.

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