Tools

Choosing invoicing software when you work on site

Most invoicing tools are built for people sitting at a desk. If your office is a van, the things worth paying for are different.

Published 5 min read

Search for invoicing software and you will find products designed for agencies and consultants: time tracking, project boards, client portals. None of that helps when you are standing in someone's kitchen trying to get a quote out before the next job.

What actually matters on site

It has to work from a phone, properly

Not a shrunken desktop page, but something you can use with one hand and cold fingers. The test is simple: can you produce a complete, sendable quote on your phone in under two minutes, without pinching to zoom? If not, you will end up doing it at home in the evening — which is the problem you were trying to solve.

Quotes must become invoices without retyping

You quote, the client accepts, you do the work, you invoice. If that last step means retyping every line, you will postpone it. One click from accepted quote to invoice saves more time over a year than any other feature.

Reminders have to be automatic

Every tool lets you send a reminder. Very few send it for you. The distinction matters enormously, because the reason invoices go unpaid is almost never that you could not write the email — it is that you forgot, or felt awkward, or were on a roof.

Tax handled line by line

Trades often mix rates on one document: materials at one rate, certain renovation work at a reduced rate. Software that only applies a single rate per invoice will force you into workarounds within a week.

What looks impressive and is not

  • Time tracking. You quote fixed prices for jobs, not billable hours.
  • Client portals. Your clients will not create an account to look at one invoice; they want a PDF.
  • Deep accounting features. Your accountant already has software. You need clean documents, not a second ledger.
  • Dozens of templates. You will pick one in the first week and never change it.

The questions to ask before subscribing

  1. 1Can I export my data if I leave? If the answer is unclear, treat that as a no.
  2. 2What is the real monthly price, once the introductory period ends?
  3. 3Are there limits on invoices, clients or users at my price point?
  4. 4How do I cancel, and how long does it take?
  5. 5Where is my data hosted, and under which jurisdiction?

Test it on a real job

Do not evaluate software by clicking around an empty demo. Take your next actual job: enter the client, build the quote on site, convert it to an invoice, send the PDF. Twenty minutes of real use tells you more than an hour of reading feature lists.

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Frequently asked questions

Do I need invoicing software if I only send a few invoices a month?
If your invoices are simple and always paid on time, a template may be enough. The moment you are chasing payments or mixing tax rates, software pays for itself quickly.
Can I use it without an internet connection on site?
Most web-based tools need a connection. In practice a phone signal is usually enough, and you can always enter the details later the same day rather than at the end of the month.
Will my accountant be able to work with it?
Ask whether you can export your invoices as PDF and as a data file. Those two exports cover what almost every accountant needs.
What does invoicing software usually cost?
For a one-person trade business, expect somewhere between €10 and €30 a month. Be wary of low headline prices that cap the number of invoices.

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