# What Claude (Anthropic) with web search answered for tax preparation software (nonprofits) on 2026-10-14

## In short

On 2026-10-14, Claude (Anthropic) with web search was asked "best tax preparation software for nonprofits". It named 10 brands; the first six, in order, were Tax990, 990-PF, 990-T, File990, File990.org and Aplos.

| Fact | Value |
| --- | --- |
| Question | best tax preparation software for nonprofits |
| Asked on | 2026-10-14 |
| Engine | Claude (Anthropic) with web search |
| Model | claude-opus-5 |
| Brands named | 10 |
| Sources cited | 6 |
| Audience | nonprofits |
| Coverage | Coverage: Claude (Anthropic) with web search. Other engines not included. |
| Last verified | 2026-10-14 |

Page: https://bikoosh.com/answers/s/tax-preparation-software-nonprofits-2026-10-14
Coverage: Claude (Anthropic) with web search. Other engines not included.

## The answer, as recorded

Asked on 2026-10-14 through Claude (Anthropic) with web search (model claude-opus-5).

> ## The short version
> 
> "Tax prep software for nonprofits" almost always means **Form 990-series e-filing**, not income tax prep - a 501(c)(3) doesn't owe income tax, it files an annual information return. Which product is right depends almost entirely on which 990 you file, so here's the order I'd actually give:
> 
> **1. The IRS's own Form 990-N e-Postcard system - free.** If your gross receipts are normally $50,000 or less, you file the e-Postcard and nothing else. It's eight data fields on the IRS site. Do not pay anyone for this. ([IRS](https://www.irs.gov/charities-non-profits/annual-electronic-filing-requirement-for-small-exempt-organizations-form-990-n-e-postcard))
> 
> **2. Tax990 (formerly ExpressTaxExempt) - best all-around paid option for a nonprofit filing its own return.** It's IRS-authorized across the whole series (990-N, 990-EZ, 990, 990-PF, 990-T) plus state forms like CA 199, so you don't have to switch vendors when you outgrow the EZ. It auto-attaches required schedules, imports prior-year data, has an internal audit check before transmission, and includes free extensions, amendments, and retransmission of rejected returns. Published per-return pricing is roughly $109.90 

## Brands named, in the order the engine gave

| Position | Brand | How it was named |
|---|---|---|
| 1 | Tax990 | mentioned |
| 2 | 990-PF | mentioned |
| 3 | 990-T | mentioned |
| 4 | File990 | mentioned |
| 5 | File990.org | mentioned |
| 6 | Aplos | mentioned |
| 7 | TaxAct | mentioned |
| 8 | Professional | mentioned |
| 9 | Lacerte | mentioned |
| 10 | Candid | mentioned |

## Sources the engine cited

- https://www.irs.gov/charities-non-profits/annual-electronic-filing-requirement-for-small-exempt-organizations-form-990-n-e-postcard (reference)
- https://www.tax990.com/pricing/ (vendor)
- https://www.capterra.com/p/10041549/Tax990/ (review)
- https://www.file990.org/blog/best-nonprofit-tax-software-available-even-novice-treasurer (vendor)
- https://www.wikipedia.com/wiki/Aplos_Software (other)
- https://www.tax990.com/form-990-electronic-filing (vendor)

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

Alerts and membership: Answer Watch Pro, 79 USD per month: https://bikoosh.com/answers. Bikoosh is monitoring assistance, not complete protection.

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.