Accountant invoices need engagement-specific billing detail. Everhour connects time, rates, and invoice-ready records for client work.
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Use this page to prepare invoices for accounting, bookkeeping, tax, advisory, or attest-related client work. The invoice should identify the client, the engagement, the billing period, the fee basis, payment terms, and any expenses or taxes that apply. Accountants commonly bill fixed routine-service fees, hourly rates, fee ranges, initial consultation fees, retainers, or recurring monthly charges.
A clear accountant invoice supports both payment collection and recordkeeping. For United States tax records, invoices act as supporting documents that show business transactions and sources of gross receipts. Ordinary private-sector businesses do not follow one prescribed federal invoice form, so the invoice format should match the engagement letter, client expectations, and any accounting or practice-management process used by the firm.
An accountant invoice should make the billing basis visible. A bookkeeping client may see a monthly fixed-fee line for bank reconciliation and financial statements. A tax client may see a consultation fee, hourly research time, or a fixed preparation fee. An advisory client may see phase-based work tied to cash-flow planning, cleanup, or implementation support.
Tax and attest work need extra care. Circular 230 prohibits unconscionable fees in matters before the IRS and recognizes written fee schedules for fixed fees, hourly rates, fee ranges, and consultation fees. The AICPA Code bars members in public practice from preparing an original or amended tax return or refund claim for a contingent fee, while Circular 230 allows contingent fees only in specified IRS examinations, penalty or interest refund claims, and judicial proceedings.
United States invoices do not use a national VAT or GST invoice regime. Sales and use tax is imposed by states and local jurisdictions, and the correct treatment depends on nexus, the location of the sale, and whether the specific service is taxable. California generally taxes retail sales of tangible personal property and only some service or labor charges, while Texas defines 16 broad categories of taxable services.
Accountants should avoid turning a sales-tax decision into a generic invoice setting. Add state seller permit or sales-tax account details only where required for taxable sales. Use a TIN or EIN when the payer requests it through Form W-9 or when agency procedures require it. Payment method, late-fee language, retainers, and collection terms should follow the engagement agreement or firm policy.
A one-off invoice works for a single consultation, a fixed tax-preparation fee, or a small bookkeeping project with one client and one payment due date. It is enough when the fee is already approved, the scope is simple, and no one needs to reconcile billable time, non-billable cleanup, staff cost, or uninvoiced work later.
A managed workflow becomes necessary when accounting work spans multiple clients, staff members, and billing rules. Everhour supports project billing status, task-level non-billable controls, custom task rates, member-rate exceptions, and reports for billable time, non-billable time, billable amount, and cost. That structure helps a firm turn approved client work into invoice detail without rebuilding billing records by hand.
This content is for general information only, may not be fully up to date, and is provided without any warranty or liability.
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An accountant invoice should include the firm and client names, invoice date and number, engagement or project reference, service description, billing period, fee basis, payment terms, remittance details, and any applicable sales-tax line. For tax, bookkeeping, advisory, or attest work, the service line should match the engagement agreement so the client understands the charge.
AICPA rules bar members in public practice from preparing an original or amended tax return or tax refund claim for a contingent fee. Circular 230 separately restricts contingent fees for IRS matters, with specified exceptions for examinations or challenges, refund claims tied only to statutory interest or penalties, and judicial proceedings under the Internal Revenue Code.
United States accountant invoices do not use a national VAT or GST invoice regime. State and local sales and use tax rules control tax collection where applicable. A seller that makes taxable sales may need state-level registration, such as a seller's permit, but that is separate from a VAT or GST registration number.
Unpaid fees can create an independence threat for attest clients. AICPA guidance says the threat is not at an acceptable level when significant unpaid fees relate to services provided more than one year before the current-year attest report date. Firms should review unpaid attest balances before issuing current-year attest reports.
AICPA guidance says client-provided records may not be withheld because retrieval, copying, or shipping fees are unpaid, and required records should generally be made available no later than 45 days after request. Member-prepared records or work products may be withheld when fees are due for that specific work product, subject to stricter state or federal rules.
Everhour lets admins set project billing status, mark specific tasks as non-billable, set custom task rates, and use member-rate exceptions. Reports can show billable time, non-billable time, billable amount, and cost, which helps accounting firms separate client charges from internal cleanup or admin work.
Track billable accounting work by client, project, task, and rate. Everhour keeps non-billable time separate and gives firms cleaner invoice detail from approved work.
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