Every invoice captures engagement-specific details alongside your service line items — service type, billing period, entity type, and returns filed all on one clean PDF your clients can file for their own records.
Our accounting schema comes ready to use out of the box. Need fields for engagement letter reference, preparer ID, or audit type? Build your own schema in minutes.
The built-in accounting schema includes fields for service type, tax year, entity type, billing period, and returns filed. Select it on any invoice and those fields appear automatically — giving your clients a clear record of the engagement.
Run a tax-focused boutique, a forensic accounting practice, or a nonprofit bookkeeping service? Add custom fields for engagement letter numbers, preparer credentials, filing extensions, or any detail your practice documents — your schema, your invoice.
Choose your PDF theme, toggle which business details appear, set a default tax rate, and pre-select your preferred schema so every invoice starts perfectly.
Manage your client book and invoice history without a filing cabinet or spreadsheet.
Store business name, contact, phone, email, and address once. Pull it up on any new invoice instantly.
Every invoice ever created is stored and searchable. Go back and reference any job, any client, any date.
Mark invoices as Draft, Pending, Paid, or Overdue. See at a glance what you're waiting on and what's been collected.
Every invoice generates a clean, print-ready PDF. Email it, print it, or save it to your records.

Accounting clients often run on monthly retainers with additional charges for quarterly filings and tax season work. The invoice dashboard shows every client and their payment status — Draft, Pending, Paid, or Overdue — so you always know which engagements are settled and which need follow-up.
When tax season rolls around — or you just want to know how the business is doing — the Reports section has you covered.


Running a multi-partner firm with staff accountants and a billing coordinator? Invite your team so they can create and manage invoices under your firm's account — all tied to your client engagements and your revenue data.
No two accounting practices bill the same way. Whether you handle small business bookkeeping, corporate tax compliance, or estate planning, the Schema Builder lets you define exactly the engagement fields your invoices need and reuse them across your entire client book.

Generic invoicing tools don't understand retainer billing, engagement types, or the documentation your clients expect. ServiceInvoicing does.
Capture service type, billing period, entity type, tax year, and returns filed without squeezing critical details into a notes field.
Bill monthly retainers, quarterly filings, and one-time engagements as separate line items — with clear descriptions your clients can reconcile against their own records.
Your invoices look clean and authoritative — with your firm name, contact details, and all engagement information on one well-organized document.
Create invoices from client meetings, update payment status from your phone during tax season, and review annual revenue from anywhere you work.
Start free with your first client. Invite staff accountants as you grow. Add custom schemas for new service lines as your practice expands.
Every client, every engagement, every invoice is stored and searchable — so you can pull up prior period invoices or resend a PDF at tax time in seconds.
Join accountants and CPAs who have replaced ad-hoc billing with one organized invoicing system. Get started free — no credit card, no commitment.
Get Started Free TodayFree plan includes unlimited invoices. Upgrade any time.