# What Claude (Anthropic) with web search answered for tax preparation software (nonprofits) on 2026-09-16

## In short

On 2026-09-16, Claude (Anthropic) with web search was asked "best tax preparation software for nonprofits". It named 6 brands, in this order: Tax990, File990, TaxAct, TaxAct Tax-Exempt Organizations, Aplos and UltraTax CS.

| Fact | Value |
| --- | --- |
| Question | best tax preparation software for nonprofits |
| Asked on | 2026-09-16 |
| Engine | Claude (Anthropic) with web search |
| Model | claude-opus-5 |
| Brands named | 6 |
| Sources cited | 9 |
| Audience | nonprofits |
| Coverage | Coverage: Claude (Anthropic) with web search. Other engines not included. |
| Last verified | 2026-09-16 |

Page: https://bikoosh.com/answers/s/tax-preparation-software-nonprofits-2026-09-16
Coverage: Claude (Anthropic) with web search. Other engines not included.

## The answer, as recorded

Asked on 2026-09-16 through Claude (Anthropic) with web search (model claude-opus-5).

> Short version: which product is "best" depends almost entirely on which 990 you file, and there are far fewer real options than the marketing pages suggest. Here's who I'd actually name, in order:
> 
> **1. IRS Form 990-N e-Postcard (free, direct from the IRS)** - If your gross receipts are normally $50,000 or less, don't buy anything. It's eight questions, filed free on the IRS site, and takes about ten minutes with your EIN in hand. Paid services charging $40-$50 for this are selling you a reminder email. ([IRS e-Postcard](https://www.irs.gov/charities-non-profits/exempt-organizations-e-file-e-postcard))
> 
> **2. Tax990 (formerly ExpressTaxExempt)** - My default recommendation for a self-filing nonprofit doing a real 990, 990-EZ, or 990-PF. It's IRS-authorized, covers the full series plus all the schedules, auto-fills schedules from your answers, imports prior-year data, and has support staff who only do 990s - which matters because the hard parts (Schedule A public support test, Schedule B donor disclosure, officer comp on Schedule J) are where generic software leaves you alone. Pricing runs roughly $100-$200 for a single filing. ([tax990.com](https://www.tax990.com/), [pricing](https:

## Brands named, in the order the engine gave

| Position | Brand | How it was named |
|---|---|---|
| 1 | Tax990 | recommended |
| 2 | File990 | mentioned |
| 3 | TaxAct | mentioned |
| 4 | TaxAct Tax-Exempt Organizations | mentioned |
| 5 | Aplos | mentioned |
| 6 | UltraTax CS | mentioned |

## Sources the engine cited

- https://www.irs.gov/charities-non-profits/exempt-organizations-e-file-e-postcard (reference)
- https://www.tax990.com/ (vendor)
- https://www.tax990.com/pricing/ (vendor)
- https://www.file990.org/forms/file-a-990-n/ (vendor)
- https://www.taxact.com/business-taxes/download/tax-exempt-organization (vendor)
- https://gitnux.org/best/990-tax-software/ (other)
- https://acculinkcpa.com/blog/top-10-tax-software-platforms-for-cpa-firms-cch-vs-ultratax-vs-lacerte-vs-drake (other)
- https://www.irs.gov/charities-non-profits/annual-electronic-notice-form-990-n-frequently-asked-questions (reference)
- https://givingarc.com/form-990-filing-cost/ (other)

The question page: https://bikoosh.com/answers/q/tax-preparation-software/nonprofits

Answer Watch records what one AI answer engine said on one date, nothing more. Each page names the engine and the model, carries the date the question was asked, and lists the brands that appeared in the answer in the order the engine gave them, with the sources it cited. It is a measurement, not a ranking, not a recommendation and not a claim about the world. Brands that did not appear in an answer are not named on any public page. Coverage: Claude (Anthropic) with web search. Other engines not included.