Big-Law research depth, sized for a solo practice
TaxBook gives sole practitioners and small tax firms the same unified authority graph that AmLaw tax partners use — without the legacy seat pricing, without rationing pay-per-use lookups, and without juggling four tools per engagement.
Why solo tax practices choose TaxBook
One subscription, every authority
IRC, 26 CFR, tax-court and federal opinions, IRS guidance, and legislative history in a single surface. Cancel your second and third research subscriptions.
No pay-per-use anxiety
Open every section, case, and committee report you need without watching a meter. Flat per-seat pricing on the Solo plan.
Bring your own AI
Use your own Anthropic, OpenAI, or Bedrock account. Pay published model rates — not a vendor markup buried in your seat fee.
A research surface that punches above its weight
Citation graph for every section
Open § 1031 and see the regs, the cases that have interpreted it, the IRS guidance issued under it, and the amendments — with no manual cross-referencing.
Pin to the closing date
Reconstruct what the law actually said on the date your transaction closed. Time Machine works across USC, CFR, and the legislative timeline.
Legislative history in three clicks
Trace amendments back through public laws and committee reports without leaving the section page. The workflow Big-4 librarians have been asking for — now in solo reach.
Mobile-first
Read an opinion on a phone in a deposition room. Pull up § 263A on a tablet at a client site. The interface respects how solos actually work.
“For the first time, my research surface looks more like a Big Law partner’s than a solo’s.”
Founding partner, boutique tax firm
Read the case study →Start with the Solo tier
14-day trial, no card required. Bring your own AI key and you’re working off the full TaxBook surface in under five minutes.