Accountant Invoice Template — Retainer, Year-End
Hourly billing with detailed time entries, monthly retainers, year-end engagement fees, advisory work, and software pass-throughs. The template separates fees from disbursements per professional rules.
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What belongs on an accountant's invoice
●Professional fees (hourly × hours). With timesheet detail.
●Monthly retainer (per engagement letter). Defined scope.
●Year-end engagement / accounts preparation. Fixed fee per engagement letter.
●Tax return preparation (per return). Personal / corporate / partnership separately.
●Advisory / consulting hours. Outside compliance scope.
●Disbursements (filing fees, search fees). At cost — pass-through.
●Software (cloud accounting subscription) pass-through. Or wrapped.
How accounting firms usually bill
Hourly: monthly invoice with detailed timesheet.
Retainers: monthly in advance; reconciliation at quarter-end for overages.
Year-end and tax returns: per engagement letter, often 30/70 (deposit/balance).
Always reference the engagement letter date and matter — clients with multiple engagements need it.
Tax notes
Accountancy services are typically fully taxable. Disbursements (filing fees, government search fees) may be zero-rated as pass-throughs. State your registration/license number on the invoice (where required by your jurisdiction).
Frequently asked questions
Hourly or fixed fee for tax returns?
Fixed fee per return type is more common — clients prefer predictable pricing. Hourly only for unusually complex returns. State the scope and what triggers an hourly addition.
How do I bill the year-end engagement?
Per the engagement letter — typically a deposit on engagement + balance on filing. Show fees and disbursements separately.
Should disbursements be marked up?
No — disbursements are pass-throughs and must be invoiced at cost in most jurisdictions. Marking them up may breach professional rules.
How detailed should time entries be?
Date, description, time (in 6- or 15-min increments). Detailed enough that the client can see what was done. Vague entries get challenged and reduced.
What an accountant's invoice looks like
Realistic, copy-and-paste-ready line items accountants typically use. The rates below reflect a mid-cost US market, so adjust them to your own.
●Year-end financial statement compilation — corporate, multi-entity (35 hrs at $185/hr): $6,475
●Federal tax return — corporate (Form 1120-S, multi-state) (18 hrs at $235/hr): $4,230
●Quarterly bookkeeping review and reconciliation (per agreement, 8 hrs at $125/hr): $1,000
●Sales-tax filing — multi-state (NY, NJ, CA, TX) (per filing at $250 each + reconciliation 2 hrs): $1,250
●Audit support — IRS correspondence, document production (6.5 hrs at $235/hr): $1,527.50
●Software passes through — QuickBooks Online + Avalara (monthly subscription, billed annually): $1,485
●Annual planning meeting — partner-led, 90 min (2 hrs at $325/hr): $650
Notes: Time billed in 0.25-hour increments per engagement letter. Engagement letter on file dated __ / __ / __. Software subscriptions pass through at cost. Federal and state e-filing rejections triggered correspondence; charged at standard rate. CPA partner sign-off included on all federal returns. Net 30; 1.5%/month late fee.
How payment timing works for accounting firms
Accounting work cycles with the fiscal calendar: Q1 (Jan-Apr) is tax-season cash crush — clients pay fast because they need the return filed; bookkeeping engagement deposits in late winter; corporate year-end work in Mar-May. Summer is the lean season for many firms, and is where retainer-based monthly bookkeeping engagements smooth the cash flow. Q4 brings advisory and planning work plus the audit-prep season for fiscal-year-end clients.
Recurring monthly bookkeeping (Net 15, often auto-draft) is the gold standard for cash flow. Tax-prep work pays Net 30 reliably for individual clients (who pay before they need the e-file confirmation). Corporate clients pay Net 30-60. The slowest payers are large institutional clients on managed-billing systems (private equity, family offices) — those engage at premium rates but their AP processes run 60-90 days. Always require a deposit on new engagements with new clients.
Five invoicing mistakes that slow down accountant payments
●Quoting tax returns as 'flat fee starting at $X'. Tax-return complexity varies wildly: a single-W-2 with standard deduction is one job; an S-corp owner with rental properties, foreign income, and crypto trading is another. Quote a base fee with explicit add-ons: 'Base 1040 + state $450; Schedule C $185; Schedule E (per property) $125; foreign income forms $295.' Saves the 'why did this cost 4× more than the friend's?' fight.
●Forgetting to bill for IRS notice responses. When a client gets an IRS notice and forwards it, that's billable advisory work. Bill: 'IRS notice response — CP2000, 2.5 hrs at $185/hr: $462.50.' Otherwise clients see your hourly response as customer-service-included; they pay more for the same work when it's itemised.
●Skipping the engagement letter renewal. Engagement letters expire annually. Renewing them at year-end (with any rate increases, scope changes, or new services) protects you on the next year's work. Auto-renewal clauses are acceptable in most states but the renewal letter is good practice.
●Not separating audit-prep from regular bookkeeping. Audit support work is at the partner or senior rate; bookkeeping is at the staff rate. Itemise: 'Bookkeeping reconciliation: 8 hrs at $125/hr' vs 'Audit support — IRS document production: 6.5 hrs at $235/hr.' Clients accept tiered rates when they see the work each tier does.
●Letting clients pay you 'when the refund comes in'. Tax-prep work is paid on filing, not on refund. Some clients ask to deduct the prep fee from the refund; some banks/processors offer this as a 'refund advance' product. The clean answer is to bill on filing and let the client manage their refund. Refund-advance products are regulated and add complexity.
US tax notes for accountants
CPA and accounting services are non-taxable in most US states. The usual exceptions are Hawaii's GET, New Mexico's GRT, South Dakota's tax on services, and Washington's B&O. Most firms never trigger sales tax. The unique tax issue for accountants is software resale: if you bundle QuickBooks Online subscriptions with your service and resell, you may have a sales-tax obligation in some states on the software portion. Best practice: have the client buy QBO directly and you're their accountant; you charge for accounting, they charge themselves for software.
Federal: Most accountants are 1099-NEC contractors or S-corp owners. Accountant deductibles: CPE (continuing professional education — annual requirement, fully deductible), state Society of CPAs dues, AICPA membership, professional liability insurance, software subscriptions (Lacerte/UltraTax/Drake, QuickBooks ProAdvisor, audit software, tax research like CCH or Thomson Reuters), staff training and credentialing (CPA exam reimbursement is deductible to the firm), and the under-claimed line — client-meeting expenses (offices, conference rooms, lunches if business-related and documented).
Not tax advice — confirm specifics with your CPA or state department of revenue.
Other questions accountants ask
How do I structure a fixed-fee tax-prep engagement?
Quote based on complexity bands: Simple (W-2, standard deduction): $300-500. Itemised individual with some Schedule C/E: $600-1,200. Small-business owner with one corp + personal: $1,500-3,500. Multi-state, multi-entity, foreign income: $3,500-15,000+. Quote the band at engagement; if the actual return falls outside (more complex than expected), invoice the upgrade with notice.
Should I charge clients who bring me disorganised records?
Yes — and you should signal this at engagement. State: 'Engagement assumes client provides organised records per checklist; additional reconstruction work billed at $X/hr.' Many firms charge a 'shoebox fee' for receipts arriving loose and unorganised. Disclose so the conversation about the high invoice is short.
Can I refuse to amend a return for a client who got bad advice elsewhere?
Yes — amended returns from prior accountants' errors have liability implications, and you should run a clean engagement letter that defines scope and disclaims prior-year liability. If you take the amended-return work, charge for the full review (not just the amendment), since you're inheriting risk. Some firms decline amendments from non-clients entirely.
How do I bill for advisory work that the client didn't ask for?
Don't — unless you got authorisation first. Advisory work the client didn't approve is hard to collect. The right pattern: spot an issue, send a one-line email asking 'I noticed X; would you like me to dig in? Estimated 3-5 hrs.' Get written approval, then bill. Free advisory work trains clients to expect free advisory work.
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