Invoicing software in the United Kingdom that AI assistants recommend

Name: AI assistant recommendations: Invoicing software in the United Kingdom, November 2026
Creator: AIGROW
License: https://creativecommons.org/licenses/by/4.0/

FreeAgent is named most, in 92% of 36 answers.

The ranking

AI Recommendation Rate

1FreeAgent92%
95%: 78 to 97%
ChatGPT
83%
Claude
100%
Gemini
92%
Questions
4 of 4
Avg. position
1.9
Named in answers to
- What is the best invoicing software for a small business in the UK?, from ChatGPT, Claude and Gemini
- I'm a freelance designer in the UK and still make my invoices in a spreadsheet. Which invoicing tool would you recommend?, from ChatGPT, Claude and Gemini
- Which invoicing app would you recommend to a small company in the UK?, from ChatGPT, Claude and Gemini
- Which invoicing software is the most affordable for a freelancer in the UK?, from ChatGPT, Claude and Gemini
Is this your business?
2Xero75%
95%: 59 to 86%
ChatGPT
75%
Claude
75%
Gemini
75%
Questions
3 of 4
Avg. position
2
Named in answers to
- What is the best invoicing software for a small business in the UK?, from ChatGPT, Claude and Gemini
- I'm a freelance designer in the UK and still make my invoices in a spreadsheet. Which invoicing tool would you recommend?, from ChatGPT, Claude and Gemini
- Which invoicing app would you recommend to a small company in the UK?, from ChatGPT, Claude and Gemini
Is this your business?
3Zoho Invoice75%
95%: 59 to 86%
ChatGPT
100%
Claude
100%
Gemini
25%
Questions
4 of 4
Avg. position
3.5
Named in answers to
- What is the best invoicing software for a small business in the UK?, from ChatGPT and Claude
- I'm a freelance designer in the UK and still make my invoices in a spreadsheet. Which invoicing tool would you recommend?, from ChatGPT and Claude
- Which invoicing app would you recommend to a small company in the UK?, from ChatGPT and Claude
- Which invoicing software is the most affordable for a freelancer in the UK?, from ChatGPT, Claude and Gemini
Is this your business?
4QuickBooks67%
95%: 50 to 80%
ChatGPT
50%
Claude
100%
Gemini
50%
Questions
4 of 4
Avg. position
2.4
Named in answers to
- What is the best invoicing software for a small business in the UK?, from ChatGPT, Claude and Gemini
- I'm a freelance designer in the UK and still make my invoices in a spreadsheet. Which invoicing tool would you recommend?, from Claude
- Which invoicing app would you recommend to a small company in the UK?, from ChatGPT, Claude and Gemini
- Which invoicing software is the most affordable for a freelancer in the UK?, from Claude
Also written QuickBooks Online, QuickBooks Self-Employed, QuickBooks Simple Start
Is this your business?
5Wave39%
95%: 25 to 55%
ChatGPT
0%
Claude
92%
Gemini
25%
Questions
4 of 4
Avg. position
3.6
Named in answers to
- What is the best invoicing software for a small business in the UK?, from Claude
- I'm a freelance designer in the UK and still make my invoices in a spreadsheet. Which invoicing tool would you recommend?, from Claude
- Which invoicing app would you recommend to a small company in the UK?, from Claude
- Which invoicing software is the most affordable for a freelancer in the UK?, from Claude and Gemini
Also written Wave Accounting
Is this your business?
6FreshBooks31%
95%: 18 to 47%
ChatGPT
0%
Claude
8%
Gemini
83%
Questions
4 of 4
Avg. position
3.9
Named in answers to
- What is the best invoicing software for a small business in the UK?, from Gemini
- I'm a freelance designer in the UK and still make my invoices in a spreadsheet. Which invoicing tool would you recommend?, from Claude and Gemini
- Which invoicing app would you recommend to a small company in the UK?, from Gemini
- Which invoicing software is the most affordable for a freelancer in the UK?, from Gemini
Is this your business?
7Sage25%
95%: 14 to 41%
ChatGPT
8%
Claude
67%
Gemini
0%
Questions
3 of 4
Avg. position
4.4
Named in answers to
- What is the best invoicing software for a small business in the UK?, from ChatGPT and Claude
- Which invoicing app would you recommend to a small company in the UK?, from Claude
- Which invoicing software is the most affordable for a freelancer in the UK?, from Claude
Also written Sage Business Cloud Accounting
Is this your business?
8Invoice Ninja14%
95%: 6 to 29%
ChatGPT
25%
Claude
17%
Gemini
0%
Questions
1 of 4
Avg. position
3
Named in answers to
- Which invoicing software is the most affordable for a freelancer in the UK?, from ChatGPT and Claude
Is this your business?
9Bonsai8%
95%: 3 to 22%
ChatGPT
0%
Claude
17%
Gemini
8%
Questions
2 of 4
Avg. position
5.3
Named in answers to
- I'm a freelance designer in the UK and still make my invoices in a spreadsheet. Which invoicing tool would you recommend?, from Claude
- Which invoicing software is the most affordable for a freelancer in the UK?, from Gemini
Is this your business?
10SumUp6%
95%: 2 to 18%
ChatGPT
17%
Claude
0%
Gemini
0%
Questions
1 of 4
Avg. position
3
Named in answers to
- Which invoicing software is the most affordable for a freelancer in the UK?, from ChatGPT
Is this your business?

Open a row to see each assistant's share of its own answers. Questions counts how many of the four produced the name at least once; position is where it came in the answer's list, 1 being first. 3 more names came up in a single answer and are counted above but not listed.

Invoicing software in the United Kingdom: is this your field?

13different names in 36 answers, 3 of them only once. The assistants change their minds from one answer to the next.

Check whether AI names you

Is this your business?

Named on this list? Get the badge for your website and a free scan of who AI assistants recommend to your customers. Use the badge only for a business named here. It records this edition, without verifying ownership or promising future mentions.

AIGROW ScoreIs this your business? See your AIGROW ScoreHow the AIGROW Score is measured

No business can pay to appear in the Index, rise in it or be removed from it. How the Index stays neutral

AI Visibility Index · November 2026

Asked about invoicing software in the United Kingdom, ChatGPT, Claude and Gemini named FreeAgent most often, in 92% of answers (its AI Recommendation Rate), then Xero (75%) and Zoho Invoice (75%). Across 36 answers they named 13 different businesses, 3 of them only once. Each of four buyer questions was asked three times, in English, in November 2026.

The AI Recommendation Rate is the fraction of the 36 answers that named a business. The range under it is a 95% confidence interval: where two ranges overlap, the gap between those businesses could be chance.

Names are printed as the assistants wrote them. We have not checked that any of them is good, open, or real.

92% of answers named FreeAgent

Answers: 36
Businesses named: 13
Named only once: 3
Named by 2+ assistants: 9 of 10
Named again on a rerun: 89%

Edition November 2026. Download the data

What each assistant said

The same questions, the same number of times, and often different names. Each column is one assistant's top five from the ranking above, with the share of its own answers that named them.

#	ChatGPT	Claude	Gemini
1	Zoho Invoice100%	FreeAgent100%	FreeAgent92%
2	FreeAgent83%	Zoho Invoice100%	FreshBooks83%
3	Xero75%	QuickBooks100%	Xero75%
4	QuickBooks50%	Wave92%	QuickBooks50%
5	Invoice Ninja25%	Xero75%	Zoho Invoice25%

Questions about invoicing software in the United Kingdom

How AI assistants recommend invoicing software

ChatGPT, Claude and Gemini named FreeAgent most often, in 92% of 36 answers, then Xero (75%) and Zoho Invoice (75%). The names come from what the assistants answered to four buyer questions in November 2026; we have not checked that any of them is good, open or real.

Not always. ChatGPT named Zoho Invoice most often (100% of its answers), Claude FreeAgent (100%) and Gemini FreeAgent (92%). 9 of the 10 listed businesses were named by two or more of them.

Each question was asked three times. Of the names an assistant gave for a question, 89% came back in two or more of those runs; the rest came up once. The 95% range beside each rate in the ranking shows how far it could move by chance.

Run the free checker: it asks ChatGPT, Claude, Gemini and Grok two of the Index questions for invoicing software, with the category and the place already filled in, and shows every answer word for word. About 30 seconds, no sign-up. The page on how AI assistants recommend invoicing software shows what an owner can work on. Nothing can guarantee that an assistant names you.

Named here? Put it on your site

Every business in the ranking was named in two or more answers. The badge says that and nothing more: no position, because the ranges above do not support one. It links back to this page, so anyone can check.

Correct or remove a listing

<a href="https://aigrow.gg/index/invoicing-software/united-kingdom"><img src="https://aigrow.gg/badges/index/2026-11/invoicing-software/united-kingdom.svg" width="312" height="100" alt="Named by AI assistants: Invoicing software in the United Kingdom, AIGROW AI Visibility Index, November 2026"></a>

The questions

Asked word for word, three times each, to every assistant. The prompt is the one the free scan uses. No web search, no location and no chat history, so every answer starts from the same place.

1What is the best invoicing software for a small business in the UK?
2I'm a freelance designer in the UK and still make my invoices in a spreadsheet. Which invoicing tool would you recommend?
3Which invoicing app would you recommend to a small company in the UK?
4Which invoicing software is the most affordable for a freelancer in the UK?

How to read this page

The full method

What it measures: Which names these models produce when asked cold, from what they learned in training. It is not a review, a rating or our recommendation, and a business missing here may simply be one the models were never shown.
Why the ranges matter: 36 answers is a sample. Asked again next month, most shares will move by a few points; the ranges say how far they could move by chance alone.
One business, several spellings: Branches, legal suffixes and spellings of one business are merged, and the other spellings are printed under its name. Names that might be two businesses are kept apart.
A name is wrong: If a business here is closed, misnamed or yours and you want it removed, tell us. We correct or remove it when the page is next published.