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Billing expenses back to a client

Travel, materials, printing, a courier. Recharging costs is easy to get wrong and easy to get right, and the difference is agreeing it first.

Last updated 22 June 2026

Billing expenses back to a client is where a good relationship quietly sours, almost always because a cost appeared on an invoice that nobody discussed beforehand.

The document work is easy. The agreement is what matters.

Agree it at quote stage

Two lines on the quote settle the whole thing:

“Materials are recharged at cost. Travel beyond 40km is charged at 50 per km. Any expense over 5,000 will be agreed with you before it is incurred.”

Now the client knows what is coming and there is no conversation to have later. How to write a quote covers where terms like this belong on the sheet.

Two ways to handle costs

Inclusive. Absorb expenses into the price. Simpler, and it suits fixed price work where you can predict costs.

Recharged. Bill them separately at cost, or at cost plus a stated handling charge. Suits work where costs vary or are large relative to the fee.

Pick one per job and say which. What causes arguments is a fixed price that turns out to have had expenses on top of it all along.

Show them separately on the invoice

Do not fold recharges into the fee line. The client should be able to see the fee, the costs, and the total.

Description                                        Amount
Design work, 18 hours at 6,000                    108,000
Printing, proof set, at cost                        4,200
Courier to Nakuru, at cost                          1,800
Travel, 180km at 50                                 9,000
                                     Subtotal     123,000

A grouped subtotal for expenses helps where there are many. What goes on an invoice covers the surrounding fields.

Rename the columns if it helps

If half your lines are hours and half are costs, the default headings fit neither. Add a Type or Category column, or rename Quantity to something that covers both.

Custom labels on your documents covers doing that once and saving it into the template.

Keep the receipts

Recharge at cost means you may be asked to show the cost. Keep the supplier receipt for anything you pass on, and be willing to attach copies for larger items.

Clients rarely ask. The ones who do are usually the ones who will ask about everything, and having the receipt ends it immediately. How long to keep your invoices covers retention on both sides.

Mileage

Use a published rate where your tax authority sets one, state the rate on the invoice, and record the journey rather than a monthly total.

“Travel, 9,000” invites a question. “Nairobi to Nakuru and return, 180km at 50” does not.

Markup, if you apply one

Some businesses add a handling charge on recharged materials, and that is legitimate as long as it is disclosed. Say “at cost plus 10%” in the terms and show it as its own line.

What is not legitimate is describing something as at cost when it is not. That is the version of this that ends a client relationship rather than straining it.

Large costs go through their own approval

For anything substantial, get it in writing before you spend. A purchase order from the client, or a short approved job card line, converts a future argument into a filed document. Approving extra work covers the mechanics.

Tax needs care

How tax applies to recharged costs varies, and it is not always the same as on your fee. Where you are registered, ask your accountant once and then apply the answer consistently.

Disbursements versus your own costs

The distinction is worth understanding because it can change how tax applies.

A cost incurred on the client’s behalf, where they are the customer of the supplier, behaves differently from a cost you incurred to do your job and are passing on. Courier charges, permit fees and third party payments often fall in the first group; your travel and your materials usually fall in the second.

Rules vary by jurisdiction. Ask an accountant once, apply the answer consistently, and note which category each recurring expense sits in.

Bill expenses on the same invoice, not separately

A second invoice for 4,200 of printing costs the client more in processing than the amount involved, and it is the one most likely to be lost.

Put expenses on the invoice for the work they belong to. Where a job runs long, put the month’s expenses on that month’s invoice rather than saving them all for the end.

Timing: bill them while they are recognisable

An expense billed three months after it was incurred is an expense the client cannot verify, and verification is what they do before approving.

Keep them current. If a cost arrives after you have invoiced, raise it promptly with a short explanation rather than folding it into an unrelated later invoice.

Round numbers look invented

Travel, 10,000 reads as an estimate. Travel, 186km at 50, 9,300 reads as a record. The second is approved without a conversation.

The same applies to materials. A supplier reference or a short description does more to get a cost approved than any amount of explanation afterwards.

Caps protect the relationship

A stated cap turns an open-ended recharge into a bounded one, and clients approve bounded things faster.

“Expenses are recharged at cost, to a maximum of 30,000 without further approval.”

It also protects you, because it forces the conversation about a large cost to happen before you have spent the money. How to raise a purchase order covers getting that approval in a form you can file.

Set the template up

Open the invoice maker, add an expenses section to your saved blank, and put your recharge terms in the notes. Every job after that inherits the agreement.