How to invoice for materials and expenses

Why getting this right matters

If your work involves buying materials, supplies, or incurring expenses on behalf of your client, how you present these on your invoice has real consequences. It affects how much tax you pay, whether your client can reclaim VAT, and whether you are CIS-compliant if you work in construction.

Getting it wrong can mean paying too much tax, getting into a dispute with a client over costs, or falling foul of HMRC. The good news is that the rules are straightforward once you understand them.

Separating labour and materials on your invoice

Always show labour and materials as separate line items on your invoice. There are several reasons for this:

• Clarity: the client can see exactly what they are paying for. This reduces disputes and builds trust.
• CIS compliance: if you work in the construction industry, contractors must deduct CIS tax from the labour element only. If you do not separate labour and materials, the contractor may deduct tax from the full amount. See the CIS invoicing guide for full details.
• VAT: separating the components makes it easier for both you and your client to handle VAT correctly.
• Quoting accuracy: it helps the client compare your quote against other quotes on a like-for-like basis.

Even if you are not in construction and not VAT registered, separating labour and materials is good practice. It shows professionalism and makes your invoices easier to understand.

Markup on materials

Adding a markup to materials is standard practice across most trades and freelance sectors. The markup compensates you for:

• Time spent sourcing and selecting materials.
• Collecting or arranging delivery.
• Storing materials on site or at your premises.
• Managing returns and defects.
• The risk of materials being damaged or wasted.

Industry standard markup is 10% to 20%. Some sectors go higher, particularly specialist trades where sourcing materials requires significant expertise. The key is to agree the markup with your client upfront, ideally in your quote or contract.

Never hide the markup. Some freelancers inflate material costs without telling the client there is a markup. This damages trust and can lead to disputes if the client checks the retail price. Be upfront: “Materials are charged at cost plus 15% to cover sourcing and handling.”

Disbursements vs recharges

This distinction matters primarily for VAT, but it is worth understanding even if you are not VAT registered.

For most freelancers and trades, materials purchased for a job are recharges, not disbursements. The materials are bought in your name, you decide what to buy and where to buy it, and you supply them as part of your service.

VAT on materials

If you are VAT registered, the rules for materials are straightforward:

1. When you buy the materials: you pay VAT to your supplier. You reclaim this input VAT on your VAT return.
2. When you invoice your client: you charge VAT on the full amount, including your markup. This is output VAT.
3. The net effect: you reclaim the VAT you paid and charge VAT on the (higher) amount you invoice. The difference goes to HMRC.

If you are not VAT registered, you do not charge VAT on anything. But you also cannot reclaim the VAT you paid on materials, so the VAT is a real cost to you. Factor this into your markup. See the VAT invoicing guide for more details.

Keeping receipts

Keep every receipt for materials and expenses you plan to recharge to a client. This matters for three reasons:

• Client queries: if the client questions material costs, you can show the receipts to prove what you paid.
• VAT records: HMRC requires you to keep VAT invoices for any VAT you reclaim. Digital copies (photos or scans) are accepted.
• Tax return: materials are a business expense. You need records to support your tax deductions.

The simplest approach is to photograph receipts immediately on your phone and store them in a folder organised by client and job. Cloud storage services like Google Drive or iCloud work well for this.

Being transparent with clients

Transparency about material costs builds trust and prevents disputes. Here are the key practices:

• State your markup policy in your quote or contract. For example: “Materials are charged at cost plus 15% to cover sourcing, delivery, and handling.”
• Provide an estimated materials cost in your quote. Give a realistic range so the client knows what to expect.
• Offer to share receipts. Some clients will never ask. Others want to see them. Being willing to share builds confidence.
• Flag unexpected costs before spending. If materials end up costing more than quoted (due to price increases or specification changes), tell the client before you buy. Do not surprise them on the invoice.
• Offer the option for clients to supply their own materials. Some clients prefer to source materials themselves, especially on larger jobs. This eliminates the markup question entirely.

Example invoice layout

Here is how a well-structured invoice looks when it includes both labour and materials:

Note: this example assumes the freelancer is not VAT registered. If VAT registered, a VAT line would appear between subtotal and total.