What is a work order?

A work order is a written instruction that authorises and describes a job to be done. It records who is asking for the work, who will do it, exactly what is to be done, the materials and labour involved, the agreed cost or rate, and the timeline. It is common in services, maintenance, manufacturing, construction and repair, where a job needs to be defined and approved before anyone starts. In short, it is the document that turns a request into an agreed, trackable piece of work.

What should a work order format include?

A good work order includes a work order number and date, the details of the issuer and the party doing the work, a clear description of the job, the list of tasks or line items with quantities and rates, the materials and labour, the total cost, the start and expected completion dates, any terms, and a space for authorisation or sign-off. The exact fields vary by trade, but the aim is always the same: define the work so both sides agree what is to be done and for how much.

What is the difference between a work order and a purchase order?

A purchase order is a buyer's request to a supplier to provide goods, focused on items, quantities and prices. A work order is about getting a job or service done, focused on tasks, labour, materials and a timeline. A purchase order says buy me these things, while a work order says do this work. They can overlap, since a work order may list materials to be bought, but their purpose differs: one procures goods, the other authorises and describes work.

Can I make a work order in Excel?

Yes. A simple work order works well in Excel or any spreadsheet, with a header block for the parties and dates, a table for the tasks or line items with quantities, rates and amounts, and a footer for totals, terms and sign-off. A spreadsheet is easy to reuse as a template and to total automatically. The limit is that a spreadsheet does not track the job or link to billing, so many businesses move to an app that turns the same information into an order they can follow through to the invoice.

Is a work order the same as an invoice?

No. A work order comes before the work and authorises it, describing what will be done and the agreed cost. An invoice comes after the work is done and requests payment for it. A work order is an instruction and an agreement, while an invoice is a demand for payment with tax details such as GST. Often the work order becomes the basis for the invoice, since the tasks and amounts agreed up front carry through to the bill raised at the end.

Work Order Format: What It Includes, With a Sample (2026)

Before a job starts, both sides need to agree what is being done and for how much, and that agreement is what a work order captures. It is the document that turns a spoken request into a written, trackable piece of work, used across services, maintenance, manufacturing, construction and repair. A clear work order prevents the most common disputes, where the customer expected one thing and the worker delivered another, or the price was never really agreed. This guide explains what a work order is, the fields a good format includes, a ready sample layout you can copy, and how a work order differs from a purchase order and an invoice, so your jobs are defined before anyone picks up a tool.

What a work order is

A work order is a written instruction that authorises and describes a job. It answers the practical questions that must be settled before work begins: who wants it, who will do it, what exactly is to be done, what it will cost, and by when. It is common wherever work is defined as a job rather than a shelf product:

Services and repair: a vehicle service, an appliance repair, an AC installation.
Maintenance: a facility or equipment upkeep task raised against a request.
Manufacturing: an instruction to produce a batch or a custom item.
Construction and trades: a defined scope of work given to a contractor or team.

The value of writing it down is that both sides look at the same scope and price before the work starts, which is far cheaper than arguing about it after.

The fields a work order should include

A work order can be simple, but a good one covers a standard set of fields so nothing important is left vague. Use these as your checklist:

Work order number and date: a unique reference and the date it is issued, so the job can be tracked and quoted later.
Issuer details: the name, contact and address of the party requesting the work.
Performer details: the name and contact of the person or team doing the work.
Job description: a clear statement of what is to be done, specific enough to avoid doubt.
Line items or tasks: a table of the tasks or components with quantities, rates and amounts.
Materials and labour: what will be supplied and what labour is involved.
Total cost: the agreed amount, with any tax shown separately where it applies.
Timeline: the start date and the expected completion date.
Terms: payment terms, warranty and any conditions.
Authorisation: space for both sides to sign or approve, which is what makes it an agreement.

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A sample work order layout

Here is a simple work order laid out as a table you can copy into a spreadsheet or a document. The header block holds the parties and dates, the middle holds the line items, and the footer holds the totals and sign-off:

Copy this into Excel and the line-item rows total automatically, giving you a reusable template. The GST line in the sample uses 18 percent purely as an illustration, since the rate depends on the specific service, so apply the rate that actually fits your work.

Work order versus purchase order

The two documents are often confused because both come before money changes hands and both list items and amounts, but they do different jobs. A purchase order is a buyer's request to a supplier to provide goods, centred on items, quantities and prices. A work order is about getting a job or service done, centred on tasks, labour, materials and a timeline. The clean way to remember it is that a purchase order says buy me these things, while a work order says do this work. They can overlap when a work order lists materials that have to be bought, but their purpose is different: one procures goods, the other authorises work. If it is the goods side you are dealing with, our purchase order format guide covers that document in full.

Work order versus invoice

A work order and an invoice sit at opposite ends of the same job. The work order comes first and authorises the work, setting out what will be done and the agreed cost. The invoice comes last and asks for payment for the work now completed, with tax details such as GST spelt out. One is an instruction and an agreement, the other is a demand for payment. In a tidy workflow the two are linked: the tasks and amounts agreed on the work order carry straight through to the invoice at the end, so nobody re-negotiates the price after the job is done. This is exactly where doing it on paper starts to cost you, because the numbers have to be copied by hand from the work order to the bill.

Paper and spreadsheet versus an app

A spreadsheet work order is a fine start and easy to reuse, but it has real limits once you run more than a handful of jobs at a time. Here is the honest comparison:

The point is not that spreadsheets are wrong, it is that once jobs pile up you want the work order to flow into the invoice and to be findable later, which is what an app does that a static file cannot.

Tips for a work order that avoids disputes

A few habits make a work order actually do its job of preventing arguments:

Be specific in the description: vague scope is where disputes start, so write exactly what is included and, where useful, what is not.
Price the extras: if extra work is likely, note how it will be charged so a change does not become a fight.
Get sign-off before starting: an approved work order is an agreement, an unapproved one is just a note.
Number every order: a running number makes it easy to quote, track and tie to the final invoice.
Keep a copy for both sides: the customer and the performer should hold the same agreed document.

The bottom line

A work order is the document that defines a job before it starts, and a good format covers the parties, a clear description, the tasks with rates, the total, the timeline, the terms and a sign-off. Keep it distinct from a purchase order, which buys goods, and from an invoice, which asks for payment after the work. Start from the sample above in a spreadsheet, and when jobs stack up, move to a tool where the work order flows into a GST invoice and stays findable. IndiaCRM lets you raise orders, track jobs and turn them into GST bills in one free app, so nothing is retyped between the agreement and the payment. Explore the features or get the mobile app and raise your first work order today.