Guides · Lead
The kiddie tax taxes a child's unearned income above $2,700 (2026) at the parent's rate. See the age tests, thresholds, and Form 8615 vs 8814.
From the newsroom
Guides
Schedule A itemized deductions in 2026: the $40,400 SALT cap, mortgage interest, the 7.5% medical floor, new 0.5% charitable floor, and break-even math.
Guides
Passive activity loss rules under Section 469 limit deductions to passive income. Learn material participation, the $25,000 allowance, and Form 8582.
Guides
Unrelated business income tax (UBIT) explained: the 3-part test, Form 990-T, the $1,000 threshold, exceptions, and Section 512(a)(6) siloing.
Guides
The matching principle records expenses in the same period as the revenue they earn. How it works under accrual accounting, with clear examples.
The Seven Desks
Software Shootout
The four practice management platforms most CPA firms shortlist in 2026. We ran 30-day trials on real client engagements: workflow fit, mobile reliability, e-sign integration, billing accuracy, and the hidden-cost line items that surface at year two. Pricing ranges from $39 to $129 per user per month.
2026 Comparison
Original Research
We publish original datasets on the accounting profession because the trade press reuses the same numbers from the same sources for years at a time. The PE Roll-Up Tracker catalogues every recapitalization of a CPA firm since 2021 with deal terms. The Audit Firm Rotation Index covers 1,140 SEC registrant auditor changes. The Crypto CPA Market Sizing report estimates $2.4 billion in 2026 fees across 380 firms. Methodology is disclosed on every dataset. Anyone can cite us with attribution.
42
CPA firm PE recapitalizations tracked since 2021
1,140
SEC registrant auditor changes catalogued since 2020
$2.4B
Estimated 2026 crypto CPA market size (380 firms)
From the archive
“The STR may be regarded as a combination of a ledger with some encryption and communication scripts. Or you might regard it as a ledger with an http or email daemon bolted onto it.”
— Todd Boyle, Shared Transaction Repository, 2003
Restored 2026
Twenty-seven essays and software specifications on general ledger architecture and distributed accounting, written between 1997 and 2010. Cited by the Nakamoto Institute, Ian Grigg's iang.org, the Apache Confluence wiki, and the Financial Cryptography blog. Restored at their original URLs to preserve the citation chain that runs from double-entry accounting through triple-entry accounting to Bitcoin.