What to include on a bookkeeping invoice
A bookkeeping invoice should make it obvious what period the work covers and what the client is paying for. State the service period (for example, the month being closed) and keep recurring retainer work on a separate line from work billed on top, so the client can approve it without a call. Add a unique invoice number and the issue date so both sides can match the payment to the right period.
Spell out the deliverable in plain terms rather than just "bookkeeping". A client who sees monthly reconciliation, transactions categorized, and management reports issued can understand the charge more easily than a single vague line. If you bill hourly or per transaction, show the rate and count so the arithmetic is visible. Where you have advanced anything on the client's behalf, such as a software subscription or filing fee, list it as a separate reimbursable line and keep any supporting receipt required by your agreement.
- Your details and tax registration
- Your business name, address, and any tax or VAT registration number, so the client can record the invoice correctly in their own books.
- Client and service period
- The client's name and the exact period the work covers, such as the month being closed, so the charge can be matched to the engagement.
- Recurring retainer line
- The agreed monthly bookkeeping fee on its own line, described by what it includes, so it is approved the same way every month.
- Hourly or per-transaction work
- Any work billed by time or volume, with the rate and the hours or transaction count shown so the total is self-explanatory.
- Add-on and project work
- Catch-up, clean-up, year-end prep, or software setup billed separately from the retainer, each on its own line with a short description.
- Totals, terms, and payment details
- The subtotal, any tax, the total due, the due date, and how to pay (bank transfer or card), plus your reference for reconciling the receipt.
How bookkeepers bill: retainer, hourly, per transaction, or project
A fixed retainer can cover a defined set of recurring tasks or a stated transaction volume for each billing period. Write down what is included, how additional work is approved, and when the recurring amount is billed.
Hourly billing can fit irregular work or tasks whose effort is not known in advance. Per-transaction pricing uses an agreed amount for each defined item processed. A project fee can cover a bounded clean-up, migration, setup, or reporting assignment. An engagement may combine these models. On the invoice, separate each billing basis and identify the period, quantity, rate, or deliverable that supports the charge.
Common bookkeeping invoice line items
Use line items that match the engagement rather than a generic list. A retainer line should name its period and scope. Work billed outside that scope should appear separately with its quantity, rate, or deliverable. For hourly, volume-based, or project work, give enough detail for the client to compare the charge with the agreement and supporting records.
- Monthly bookkeeping retainer
- The fixed recurring fee for routine recording, categorizing, and reconciliation for the period.
- Bank and account reconciliation
- Reconciling bank, card, and merchant accounts, billed within the retainer or as an hourly line for extra accounts.
- Payroll processing
- Payroll processing or support for the stated period, billed on the basis agreed with the client.
- Catch-up or clean-up work
- Bringing incomplete or inconsistent books current, billed under the agreed hourly or project basis and separated from a recurring retainer.
- Year-end and accountant prep
- Closing the books and preparing the file or reports the client's accountant or tax return needs, billed as a project line.
- Software, reimbursements, and advisory
- Accounting software set up or billed back at cost, filing fees advanced for the client, and any advisory or reporting time, each shown separately with receipts where relevant.
Payment terms and billing records
Use the billing schedule and payment term agreed with the client. State a calendar due date and an accepted payment method. If a payment provider will collect by direct debit or a saved card, obtain the authority that the provider and local rules require and disclose the amount or calculation, timing, and cancellation process before charging.
Identify the service period and itemize approved work outside a retainer. Use the invoice identifier and payment reference required by your records and the client. Keep the invoice, supporting time or volume records, reimbursable receipts, and later corrections for the applicable retention period. Include late-payment interest or a right to pause work only where the agreement and governing law support it.
Bookkeeping invoice questions
What should a bookkeeping invoice include?
Useful fields include an invoice identifier and date, your business and tax details, the client's details, the exact service period, a clear description of what was done, retainer, hourly, or per-transaction charges shown separately, any reimbursable costs with supporting records, the total due, the due date, and how to pay. The service period and a plain description of the deliverable make the invoice easier to check. Add any particulars required for the transaction.
Should I charge a monthly retainer or hourly?
A retainer can cover a defined recurring scope or transaction volume. Hourly billing can fit variable work, and a project fee can cover a bounded assignment. Choose the model in the engagement, state what it includes, and show any separately approved work on its own line.
How do I bill for clean-up or catch-up work?
Bill it separately from any ongoing retainer because the effort can be unpredictable. Hourly billing can suit work that cannot be estimated up front, while a fixed project fee can work once you have assessed the records. Describe the period and accounts being brought current so the client can distinguish the one-time work from the monthly service.
Do I charge VAT or sales tax on bookkeeping services?
It depends on the place of supply, your registration, the client, and the service. VAT, GST, sales-tax, exemption, and reverse-charge rules differ by jurisdiction. Confirm which treatment and invoice note apply to this engagement. FreeBillGen lets you configure a tax line, but it does not decide the correct treatment for you.
How should I invoice recurring bookkeeping work?
Follow the agreed billing schedule, name the service period, state a calendar due date, itemize work outside the recurring scope, and quote the required payment reference. Obtain the required authority before using direct debit or a saved card, and follow the agreement and law before charging interest or pausing work.