The auditor said $0 in R&D tax credits. Claude found $8k.
Claude went through past R&D reports and expenses, spotted that the company had been miscategorised, and drafted an email citing the tax code. Two days later the auditor admitted the mistake.
Done withClaudeSpotted· by HN user atonse· Oct 15, 2026
Result Plus $250 a month saved on AWS
“The auditor got back to me two days later admitting their mistake and said our company now qualifies for $8k in tax credits.”
Spotted: found in the wild. Details are as reported by the source above and have not been independently verified.
What they did
Had Claude analyse past R&D reports and company expenses after the auditing firm said they qualified for $0. Claude found that the auditor had miscategorised the company, and drafted an email citing the relevant section of the Internal Revenue Code and explaining which category applied.
How it went
The auditor replied two days later, admitted the mistake, and said the company now qualifies for $8k in tax credits. Separately, Claude found items in their AWS account that save $250 a month.
Try it yourself with Claude
Here are our past R&D reports and expense records: [files]. Our auditor says we qualify for [amount] in R&D tax credits. Check whether the company has been categorised correctly and whether any qualifying expenses were missed, citing the relevant tax rules. If there's a case, draft a polite, specific email to the auditor laying it out.
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