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ProSeries Tax vs 123 Sheets Comparison (2026)

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Good recommendations?

ProSeries Tax

123 Sheets

Overview

Intuit ProSeries Tax is a cloud-based tax management software designed to help accounting firms prepare returns, file e-forms, and track tax filing errors through diagnostic tools. Features include multi-user access, e-signature, status tracking, multi-year e-filing, encrypted files & data import.

123 Sheets is designed to help accountants and bookkeepers offer sales tax management solutions to their tax agents. It provides VAT compliance and exports cell content to ADO and CSV file formats. Businesses can manage sales taxes, transfer invoices, and automate VAT returns.

Platforms supported

Web-based
iPhone app
Android app
Windows Phone app

Typical customers

Freelancers
Small businesses
Mid size businesses
Large enterprises

Customer support

Phone
Online
Knowledge base
Video tutorials

view more detailsview details

Platforms supported

Web-based
iPhone app
Android app
Windows Phone app

Typical customers

Freelancers
Small businesses
Mid size businesses
Large enterprises

Customer support

Phone
Online
Knowledge base
Video tutorials

view more detailsview details

Video & Screenshots

No videos yet

Pricing

Starting from

409

Per year

Free trial available
Credit cardless trial
Free account
Subscription based

Starting from

No pricing info

Free trial available
Credit cardless trial
Free account
Subscription based

User reviews

4.0

164

Value for money

Ease of use

Features

Customer support

59%

would recommend this app

4.7

223

165

Value for money

Ease of use

Features

Customer support

90%

would recommend this app

Pros

“The ease of using the product to prepare tax returns.”

Hannah H.

Tax Preparer

“Normally they use to be ready for tax season before IRS open the season.”

Xavier A.

Administrator

“We continue to purchase it year after year.”

Hannah H.

Tax Preparer

Pros

“Well organised process for submission of VAT figures to HMRC.”

Vernon R.

Director

“Its quick and easy integration with the HMRC website makes filing VAT returns extremely quick and easy.”

Av S.

Marketing Manager

“I usually complete my VAT return very swiftly and upload it easily.”

David c.

Quantity Surveyor

Cons

“Overall it isn't a bad software just hasn't improved and support has declined.”

Vincent O.

Owner

“It was also nearly impossible to get someone on the phone for assistance.”

Justin J.

Accountant

“Also poor customer support, people don't know the tax laws so nearly impossible to explain problems to them when program does not calculate correctly.”

Michelle J.

Senior Accountant

Cons

“It’s functional, but not very modern-looking, and first-time. If you’re not comfy with Excel, the templates might feel a bit tricky at first.”

Mohammed R.

Director

“Tick Box to submit needs to be bigger and flashing as I have forgotten to tick it before and got into trouble with HMRC”

Dennis D.

Director

“not very helpful with their support team”

Mike R.

Director