Head-to-head · Corporate Tax Software
Tax Series vs GoSystem Tax RS
Tax Series leads on 0 checks, GoSystem Tax RS on 0, and 3 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreTax Series · 9.4/10
- Most featuresGoSystem Tax RS · 3 of 5
Tax Series scores higher on our rubric for corporate tax software: 9.4 against 9.2 out of 10; our editors rank them #1 and #3.
Tax Series is the better fit for multinational U.S. corporate tax teams. GoSystem Tax RS is the better fit for firms handling complex consolidated returns.
- Tax Series fits best
Multinational U.S. corporate tax teams
- GoSystem Tax RS fits best
Firms handling complex consolidated returns
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Side by side
| Feature | Tax Series 9.4/10 Visit ↗ | GoSystem Tax RS 9.2/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.4 | 9.2 |
| Ranking | #1 in Corporate Tax Software | #3 in Corporate Tax Software |
| Best for | Multinational U.S. corporate tax teams | Firms handling complex consolidated returns |
| Pricing model | Paid | Paid |
| Starting price | Pricing on request | Pricing on request |
| Free plan | Not checked yet | Not checked yet |
| Free trial | — | — |
| Deployment | Cloud | Cloud |
| Platforms | Web | Web |
| Integrations | 4 integrations | 4 integrations |
| Built for | Mid-market, Enterprise | Mid-market, Enterprise |
| Features Tax Series 0/5 · GoSystem Tax RS 3/5 | ||
| Electronic filing | Not checked yet | ✓ (best) |
| Consolidated returns | Not checked yet | ✓ (best) |
| Tax provision support | Not checked yet | Not checked yet |
| Accounting integrations | Not checked yet | ✓ (best) |
| Approval workflows | Not checked yet | Not checked yet |
| Specs | ||
| Jurisdictions covered | Not checked yet | Not checked yet |
| Deployment | Not checked yet | Cloud |
| Our review | ||
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| Our verdict | Tax Series is a web-based corporate income tax platform from Tax Technologies, Inc. for medium-sized and large multinational companies. It brings U.S. federal corporate tax compliance, state return preparation, multi-jurisdiction… Read the review → |
GoSystem Tax RS is cloud-based professional tax preparation software from Thomson Reuters for accounting firms handling complex U.S. tax work. Its coverage includes corporate, consolidated, partnership, fiduciary, individual, multistate,… Read the review → |
Strengths and trade-offs
Tax Series — where it wins
- Covers U.S. federal, state, and international compliance
- Combines provision, BEPS reporting, workflows, and entity management
- Imports general-ledger and financial-system data through web and API access
Where it doesn't
- Designed for medium-sized and large multinational companies
- Licensing requires a contact-sales process
- Its broad scope may exceed the needs of smaller domestic tax teams
GoSystem Tax RS — where it wins
- Supports corporate and multitiered consolidated returns
- Imports tax documents, trial balances, and workpapers
- REST APIs support importing, exporting, and e-filing data
Where it doesn't
- Pricing requires contacting sales
- Its scope extends beyond corporate tax returns
- Complex workflows may exceed smaller firms' needs
- Tax Series9.4/10 · Pricing on request
A broad compliance and provision platform for multinational U.S. tax teams.
Visit Tax SeriesFull verdict → - GoSystem Tax RS9.2/10 · Pricing on request
A cloud platform for firms managing complex, high-volume corporate filings.
Try GoSystem Tax RSFull verdict →
More comparisons
- Tax Series vs ONESOURCE Income Tax
- Tax Series vs Alphatax
- Tax Series vs Complete Tax Solutions
- Tax Series vs CSC Corptax
- Tax Series vs ONESOURCE Tax Provision
- Tax Series vs IRIS Business Tax
- ONESOURCE Income Tax vs GoSystem Tax RS
- GoSystem Tax RS vs Alphatax
All corporate tax software comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026
Last updated · How we research and update