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MasterTax

mastertax.com

WebAPI
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Spec score 7.6 #42 of 105 in Tax Compliance Software

What it is

MasterTax is cloud-based payroll tax software from MasterTax in Tempe, Arizona. It schedules, pays, files, and reports federal, state, and local payroll taxes from one dashboard, with built-in compliance for more than 11,000 U.S. jurisdictions. Users can import payroll data, schedule payments, create original and amended returns, generate agency coupons and vouchers, manage notices, and produce customizable reports. Outputs are available in paper, e-file, and removable-media formats. MasterTax integrates with most payroll systems and offers APIs for file import, retrieval, and data extracts. Optional modules include Tax Locator, Wage Attachment, New Hire Reporting, Cash Care, and Bank Reconciliation. Implementation includes a dedicated specialist for discovery, migration, configuration, and setup. Support includes email, phone, ticketing, and a client portal with 24-hour access. Payroll service providers can use a nonproduction environment. Pricing is on request.

Spec sheet

Purpose
MasterTax is cloud-based payroll tax software that automates scheduling, payments, filing and reporting across multiple jurisdictions.Read 11 Oct 2026 · mastertax.com
Product
MasterTax is cloud-based payroll tax software that helps schedule, pay, and file payroll taxes from a single dashboard.Read 11 Oct 2026 · mastertax.com
Intended users
The product serves small employers, large corporations, professional employer organizations, and payroll service providers.Read 11 Oct 2026 · mastertax.com
Integrations
MasterTax says it integrates with most payroll systems and offers file import, file retrieval, and data extract APIs.Read 11 Oct 2026 · mastertax.com
Security
MasterTax describes its security as enterprise-grade and says customers keep control of their employee data.Read 11 Oct 2026 · mastertax.com
Support
Post-launch support includes email and phone support, a ticketing system, and a client portal with 24-hour access to notes, articles, updates, and training materials.Read 11 Oct 2026 · mastertax.com
Headquarters
The contact page lists MasterTax, LLC at 111 W. Rio Salado Parkway, Tempe, AZ 85257.Read 11 Oct 2026 · mastertax.com
Agency notices
The Agency Notice Manager lets users upload notices or enter details, track notices with a unique ID and store agency EFT instructions.Read 11 Oct 2026 · mastertax.com
API access
YesRead 20 Sep 2026 · mastertax.com
Company fit
MasterTax says it is designed for companies with multi-jurisdiction payroll tax needs and can be configured for individual businesses.Read 11 Oct 2026 · mastertax.com
Company history
MasterTax says it was acquired by ADP in 2010 and continues to operate as a separate and independent company.Read 11 Oct 2026 · mastertax.com
Filing support level
automatedRead 20 Sep 2026 · mastertax.com
Implementation
A dedicated implementation specialist helps with discovery, migration, configuration, and setup.Read 11 Oct 2026 · mastertax.com
Implementation and support
The maker says customers receive a dedicated implementation specialist, email and phone support, a ticketing system and 24-hour access to the client portal.Read 11 Oct 2026 · mastertax.com
Integrations and APIs
MasterTax integrates with most payroll systems and offers APIs for file import, file retrieval and data extracts to external systems.Read 11 Oct 2026 · mastertax.com
Intended customers
MasterTax describes its customers as employers, payroll service providers and professional employer organizations handling multijurisdictional payroll taxes.Read 11 Oct 2026 · mastertax.com
Jurisdiction coverage
The product provides built-in compliance for more than 11,000 U.S. payroll tax jurisdictions.Read 11 Oct 2026 · mastertax.com
Notable limit
The New Hire Reporting feature supports reporting in all 50 states through fax, e-file, or secure FTP.Read 11 Oct 2026 · mastertax.com
Optional modules
Optional features include Tax Locator, Wage Attachment, New Hire Reporting, Cash Care, and Bank Reconciliation.Read 11 Oct 2026 · mastertax.com
Payments and returns
The software schedules payroll tax payments and produces agency-approved returns, coupons and vouchers in paper, e-file and removable media formats.Read 11 Oct 2026 · mastertax.com
Payroll data
Users can import payroll information, receive an auditable process report about issues and keep unresolved items queued.Read 11 Oct 2026 · mastertax.com
Payroll workflows
Features include payroll data import, payment scheduling, return and voucher creation, agency notice management, and customizable reporting.Read 11 Oct 2026 · mastertax.com
Reporting
Reports can include payment detail, general ledger data, reconciliation and deposit recaps, filed returns and a client tax profile.Read 11 Oct 2026 · mastertax.com
Return filing
YesRead 20 Sep 2026 · mastertax.com
Returns and payments
It produces original and amended returns in paper, e-file, and removable media formats, and creates agency-specific payment coupons and vouchers.Read 11 Oct 2026 · mastertax.com
Supported tax types
Federal,state,and local payroll taxesRead 20 Sep 2026 · mastertax.com
Testing environment
Payroll service providers can use a nonproduction environment to run scenarios, try payment workflows and train employees.Read 11 Oct 2026 · mastertax.com

Plans and prices

MasterTax Priced on request Pricing not listed; contact sales for a demo Read 11 Oct 2026 · mastertax.com

Every MasterTax plan and price →

Strong points and limits

Strong points

  • Covers more than 11,000 U.S. jurisdictions
  • Automated return filing support
  • Integrates with most payroll systems
  • Offers file and data APIs
  • Dedicated implementation specialist included

Limits

  • Pricing is available only on request
  • Cloud-based service requires implementation
  • Optional modules may be separate

Who it suits

MasterTax suits employers, payroll service providers, and professional employer organizations handling multijurisdictional payroll taxes. It is designed for companies needing federal, state, and local compliance.

Verdict

MasterTax provides broad payroll-tax scheduling, filing, payment, notice, and reporting workflows with integrations and APIs. Organizations should request pricing and assess implementation needs before choosing it.

Where Specifiction places it

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