INVOICE GUIDES
Invoice Date vs Service Date: Record the Right Dates
The invoice date identifies the issue of the billing document. A service date identifies when the work happened; a service period covers work across several days. The due date identifies the payment deadline. These dates can differ. In the ToolNivo Invoice Generator, enter the invoice and due dates in their fields and describe service dates or periods in the line items or Notes.
Do not force three events into one date
A repair performed on 28 June may be invoiced on 2 July and payable on a separately agreed date. Calling 2 July the service date would change the story of when the work happened. Calling 28 June the issue date merely to match the visit would also confuse the record.
| Date or period | Question it answers | Example |
|---|---|---|
| Invoice date | When was the document issued? | 2 July 2027 |
| Service date | When did the work occur? | 28 June 2027 |
| Service period | Which span of work is covered? | 1–30 June 2027 |
| Due date | When is payment expected? | The date calculated from agreed terms |
These examples explain document meaning. They do not determine a tax reporting period, revenue-recognition date or statutory deadline.
Choose a date or period that fits the work
For a single visit, state the visit date in the description. For monthly monitoring or support, identify the service period with both start and end dates. For several separately charged visits, list the dates on the relevant rows or refer to an agreed supporting schedule.
Do not label an entire month if the invoice covers only part of it. “Support, 12–30 June 2027” is more precise than “June support” when the service began mid-month. Whether the fee is prorated is a separate pricing question; the dates alone do not establish the calculation.
Handle work spanning a month boundary
Suppose an editing assignment runs from 29 June to 3 July and is billed as one agreed deliverable. The description can state that actual period and identify the deliverable. There is no operational need to pretend all work happened in one month just to make the invoice shorter.
If your agreement bills time by month, separate the June and July quantities using the underlying work log. Do not invent a split after the fact. For example, 1.5 hours in June plus 2 hours in July at USD 40.00 per hour gives USD 60.00 and USD 80.00, totaling USD 140.00. The split should reflect the actual records.
Separate advance billing from completed work
An invoice may relate to an agreed future service period or milestone. Describe it accordingly: “Advance billing for July monitoring” says something different from “Monitoring completed in July.” Do not imply delivery or acceptance before it has occurred.
When work dates change, keep a record of the revised schedule and discuss whether the invoice needs a correction. A date field in the generator does not manage contract changes or reconnect previously issued documents.
Calculate the deadline from the agreed trigger
Some arrangements use the invoice date as the payment-term starting point; others define a different trigger. Identify that trigger before filling in the due date. The payment terms guide explains why “net 30” alone may leave an operational question unanswered.
Use a calendar to verify the date rather than adding an assumed month. Thirty days and one calendar month are not always the same interval. State dates clearly in free text, particularly when the client uses a different numeric date convention.
Preserve the chronology in your records
Keep the work log or delivery evidence alongside the issued PDF. If someone later asks which month was billed, you can answer from the service-period reference instead of guessing from the invoice issue date.
Use the same period wording in your external register and item descriptions where practical. The record-keeping guide explains how to connect the PDF with sending and payment records. Do not silently backdate an issued document to satisfy a buyer’s internal preference; resolve the correct document process first.
Frequently asked questions
Does the invoice date have to equal the service date?
They describe different events and may differ. Record the facts accurately and check any rules that apply to your transaction.
Where can I add a service period in ToolNivo?
Use a relevant line description or the Notes field. The current form has no dedicated service-period control.
Can I work out the tax reporting period from this guide?
No. Document dates and tax or accounting recognition can follow different rules. This guide explains clear labeling, not a jurisdiction-specific reporting decision.