Coconut vs GoSimpleTax:Which is more popular?
In September 2026, GoSimpleTax had more branded searches than Coconut among self assessment tax return software in the United Kingdom. GoSimpleTax had about 880 branded searches, while Coconut had 210. GoSimpleTax made up 7.4% of all self assessment tax return software searches we track, and Coconut accounted for 1.8%. When we asked ChatGPT and Google AI Overviews about self assessment tax return software, GoSimpleTax appeared in two of the five answers and Coconut in one. GoSimpleTax was mentioned before Coconut in two out of three answers that named either.
Who do people search for more?
GoSimpleTax, about 4 searches for every 1 for Coconut
Who does AI mention more?
GoSimpleTax, mentioned in 2 of 5 answers, Coconut in 1
Who does AI recommend more?
GoSimpleTax, named ahead of Coconut in 2 of 3 answers
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Top self assessment tax return software in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, GoSimpleTax was mentioned in two out of five: in one of the three ChatGPT answers and in one of the two Google AI Overviews. Coconut was mentioned in one out of five: not in any of the three ChatGPT answers, but in one of the two Google AI Overviews. GoSimpleTax was listed before Coconut in two out of three answers that named either.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
FreeAgent1st
GoSimpleTax2nd
Sage Accounting3rd
Xero4th
TaxCalc5th
Andica6th
Coconut7th
Taxfix–
Pie–
Untied–
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
FreeAgent3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
GoSimpleTax2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Sage Accounting2 of 5Named in 0 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Xero2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
TaxCalc1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Andica1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Coconut1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Taxfix0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Pie0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Untied0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about self assessment tax return software
5 answers
Asked ChatGPT
“What's the best software for filing a self assessment tax return?”
Asked ChatGPT
“Which apps can sole traders use for Making Tax Digital?”
Asked ChatGPT
“What's the easiest way to do my self assessment tax return?”
Searched Google, AI Overview
“making tax digital software”
Searched Google, AI Overview
“self assessment software”
Brands are shown in the order each answer named them. The survey took place in United Kingdom on October 28, 2026.
Is Coconut or GoSimpleTax more popular in search?
This chart shows how often people search Google for Coconut and GoSimpleTax by name. Each line represents a brand's share of searches for all ten self assessment tax return software we track, month by month, from searches in United Kingdom.
Share of searches by month for GoSimpleTax, Coconut. The figures are in the table below the chart.
View monthly share of searches table
| Month | Taxfix | TaxCalc | GoSimpleTax | Andica | Pie | Sage Accounting | Coconut | Untied | FreeAgent | Xero |
|---|---|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 48.6% | 33.7% | 8.1% | 3.7% | 3% | 0.25% | 1.3% | 0.69% | 0.37% | 0.31% |
| Nov 2025 | 50.3% | 30.2% | 8.9% | 3.3% | 4% | 0.28% | 1.5% | 0.67% | 0.39% | 0.39% |
| Dec 2025 | 57.7% | 23.5% | 8.6% | 3.8% | 3.8% | 0.21% | 1.1% | 0.48% | 0.43% | 0.27% |
| Jan 2026 | 56.5% | 18.9% | 12.6% | 5.6% | 3% | 0.4% | 0.91% | 0.77% | 0.82% | 0.4% |
| Feb 2026 | 41.1% | 34.2% | 7.8% | 4.6% | 7.8% | 0.39% | 2% | 1.2% | 0.47% | 0.54% |
| Mar 2026 | 35.2% | 40.1% | 7.9% | 4.4% | 7.9% | 0.43% | 1.9% | 1.1% | 0.43% | 0.67% |
| Apr 2026 | 35.9% | 40.3% | 9.5% | 5% | 5% | 0.35% | 1.9% | 1.1% | 0.55% | 0.45% |
| May 2026 | 38.6% | 39.3% | 7.3% | 6.4% | 4.3% | 0.22% | 2.3% | 0.8% | 0.44% | 0.36% |
| Jun 2026 | 42.2% | 38% | 6.2% | 6.2% | 3.4% | 0.28% | 2.3% | 0.77% | 0.42% | 0.35% |
| Jul 2026 | 39.4% | 38.7% | 7.2% | 6.3% | 3.4% | 0.5% | 2.8% | 1% | 0.36% | 0.29% |
| Aug 2026 | 35.6% | 42.7% | 7% | 7% | 3.8% | 0.71% | 2.1% | 0.71% | 0.24% | 0.24% |
| Sep 2026 | 40.5% | 37.1% | 7.4% | 6.1% | 3.3% | 2.2% | 1.8% | 0.93% | 0.42% | 0.25% |
How has the Coconut and GoSimpleTax comparison changed over the last 12 months?
3 findings
- GoSimpleTax was ahead of Coconut in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, Coconut’s share of searches among self assessment tax return software in the United Kingdom moved from 1.3% to 1.8%, and its estimated monthly branded searches held steady at 210.
- Across the 12 months ending September 2026, GoSimpleTax’s share of searches among self assessment tax return software in the United Kingdom moved from 8.1% to 7.4%, and its estimated monthly branded searches moved from 1.3K to 880.
How did search popularity change for United Kingdom self assessment tax return software in September 2026?
2 changes

In September 2026, Sage Accounting overtook Coconut to rank 6th among self assessment tax return software in the United Kingdom, with 2.2% of the searches.

In September 2026, GoSimpleTax rose from 4th to 3rd among self assessment tax return software in the United Kingdom.
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using Coconut’s and GoSimpleTax’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
Coconut
1 branded search term
- coconut accounting
GoSimpleTax
1 branded search term
- gosimpletax
Other head-to-heads among self assessment tax return software

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