Sage 100 Contractor

What it is

Category DescAccounting/ERP (construction-specific accounting and business management system integrating project management, estimating, job costing, service management, and payroll) ↗

Target UserSmall to mid-sized residential and commercial construction companies, including general contractors, specialty trade contractors, home builders, and service contractors ↗

OwnershipAcquired (owned by The Sage Group plc, a publicly traded company listed on the London Stock Exchange under LSE: SGE) ↗

Founded Year1980 ↗

Pricing & cost

Pricing ModelSage 100 Contractor pricing is quote-only and not publicly published on Sage's website. The software is sold under a subscription-based concurrent user license model or via perpetual licenses with annual maintenance, varying by user count, selected modules, and deployment options. — Construction Cost Accounting (https://constructioncostaccounting.com); Contractor Software Hub (https://contractorsoftwarehub.com)

Typical CostLicensing typically starts at around $115 per user/month, with common subscription ranges of $115 to $200 (and up to $300 depending on module selection) per user/month. Small-team setups (3–5 users) are estimated at $400 to $900/month. Third-party cloud hosting, if selected, adds an estimated $50 to $150 per user/month. — Construction Cost Accounting (https://constructioncostaccounting.com); SelectHub (https://selecthub.com); Wins Cloud Matrix (https://winscloudmatrix.com); OneBridge Accounting (https://onebridgeaccounting.com)

Api Or Integration FeesIntegrations, custom API access, and specialized add-on modules (such as Estimating, Equipment Management, Service Receivables, and Inventory) require separate fees. Third-party API integration connectors can add monthly costs (e.g., the Ryvit connector for ClockShark integration costs $60/month). — ClockShark (https://clockshark.com); Accordant Company (https://accordantco.com); Red Hammer (https://redhammer.io)

Implementation CostImplementation, chart of accounts setup, data migration, and initial staff training are billed separately, with SMB setup fees typically ranging from $5,000 to $15,000 (and up to $20,000 for higher-complexity environments). — Construction Cost Accounting (https://constructioncostaccounting.com); OneBridge Accounting (https://onebridgeaccounting.com); Projul (https://projul.com)

API & data access

Has ApiYes (not open REST) — built-in .NET API/SDK for third-party integration, requires admin setup + licensing. Not a public self-serve REST endpoint. ↗

Api TypeNone (No native public REST, GraphQL, or SOAP web API). Sage 100 Contractor provides an internal local desktop application API for desktop software integrations (e.g., Sage Estimating), alongside Microsoft SQL Server database access and ODBC connectivity. REST API capabilities require third-party integration engines. ↗

Api Access GatingGated and license-restricted. Using the native internal API requires a company administrator to set up an API Security Group in the 7-2-1 Security Groups window and grant user permissions. Additionally, executing actions via the internal API consumes a standard Sage 100 Contractor user license seat. ↗

Api LimitationsNo public web endpoints; operates strictly on-premise or within host environments; consumes active concurrent Sage user license seats during calls; field-level security settings in Sage 100 Contractor restrict API field visibility unless explicitly assigned to the API security group; direct SQL database access requires application approval in Database Administration to avoid trigger and security blockages. ↗

Data Export OptionsBuilt-in report exports to CSV, Excel, PDF, and RTF formats; scheduled report automation (daily, weekly, bi-weekly, monthly) sent via email, file, or print using the 7-7 Scheduled Reports Manager; module-specific grid file exports (e.g., budgets, schedules, proposals, takeoffs); and direct relational database queries via SQL Server / ODBC DSN connections. ↗

Native AI features

Ai Features SummaryAs of 2025–2026, Sage 100 Contractor (formerly Sage Master Builder) has essentially no native AI features shipped directly within the core product. While Sage announced long-term plans to bring Sage Copilot and cloud-connected Sage AI services to legacy products, AI deployment remains focused on Sage Intacct. Sage 100 Contractor relies on traditional rules-based automation, Sage Intelligence reporting, and third-party partner integrations (such as Stampli, Ramp, hh2, or Field Materials) for AI capabilities. ↗

Ai DispatchSage 100 Contractor offers no native AI-powered dispatching, AI estimating, or AI call handling/CSR capabilities. Dispatching and scheduling rely on standard field service tools, manual technician assignment, and traditional Critical Path Method (CPM) logic. ↗

Ai FinanceSage 100 Contractor lacks native AI-powered AP/AR automation, AI invoicing, and OCR data capture. General ledger, invoicing, and accounts payable processes are batch-oriented and manual unless integrated with third-party AI platforms like Stampli, Ramp, or Field Materials. ↗

Ai Assistant Or McpSage 100 Contractor does not feature a native AI assistant, copilot, or Model Context Protocol (MCP) server. Sage Copilot is natively built into Sage Intacct rather than Sage 100 Contractor, and no native MCP server support exists for the platform. ↗

Integrations & ecosystem

Accounting IntegrationsSage 100 Contractor (formerly Master Builder) functions as a primary construction ERP and core accounting system of record (including General Ledger, Accounts Payable, Accounts Receivable, Job Costing, and Payroll). Consequently, it does not connect to external core accounting platforms like QuickBooks or Foundation as an sub-ledger. However, multi-system integration utilities such as hh2 Cloud Services and Sage Construction Management facilitate data synchronization and migration bridges between Sage 100 Contractor and Sage Intacct. For field and project management, Sage 100 Contractor connects to third-party tools such as Procore, Autodesk Construction Cloud (Autodesk Build), Sage Construction Management, Rhumbix, Field Materials, TopBuilder CRM, and Followup CRM. The accounting-to-field integration is hybrid: Sage 100 Contractor offers native built-in modules for project management, service receivables, and estimating, while integrations with third-party field/PM software rely on third-party connectors, vendor sync utilities (e.g., AccountingLink), or middleware like hh2 Cloud Services and Agave. ↗

MarketplaceSage maintains an official public app marketplace (Sage Marketplace) that lists verified third-party ISV applications and software integrations compatible with Sage 100 Contractor. Additionally, Sage provides a partner directory covering authorized resellers, implementation consultants, and technology partners. ↗

Unified Api SupportSage 100 Contractor is supported by Agave API, a unified API platform for construction software that offers read/write capabilities via an on-premise Windows connector interfacing with Sage 100 Contractor's SQL database. Unified API providers like Merge.dev do not currently support Sage 100 Contractor. ↗

Accounting fit & implementation

Certified PayrollSage 100 Contractor natively supports certified payroll and prevailing wage (Davis-Bacon) reporting. Features include paygroup configuration for fringe benefit cash add-ons and offsets, timecard line flags for certified work, and built-in certified payroll reporting (e.g., Report 5-1-6 and Aatrix Form 5-1-11). ↗

Accounting MethodSage 100 Contractor is strictly an accrual-based accounting system designed to meet GAAP standards for construction. It does not offer native cash-basis financial reporting. ↗

Wip Poc SupportSage 100 Contractor natively supports percentage-of-completion accounting (PCM) and Work-in-Progress (WIP) reporting, automatically calculating over/under billing adjustments via native reports (e.g., Report 6-1-7 Over/Under Billing Report). ↗

Implementation TimeImplementation typically takes 1 to 4 months (8 to 16 weeks or 30 to 90 days), depending on company size, historical data cleanup, and workflow configuration. ↗

Requires ImplementerYes, deployment typically requires a paid certified Sage Value-Added Reseller (VAR) or independent implementation consultant for chart of accounts design, system configuration, data migration, and staff training. ↗

Adoption & market position

Market PositionSage 100 Contractor (formerly Sage Master Builder) is an established construction-specific accounting and operational management platform in the U.S., tailored primarily for small to mid-sized general contractors, specialty trade contractors, and residential/commercial builders. It serves as an upgrade path from entry-level accounting tools like QuickBooks, offering specialized job costing, certified payroll, AIA progress billing, work-in-progress (WIP) reporting, and service dispatch operations. ↗

Customer ScaleThird-party technology intelligence databases estimate an active customer base ranging from approximately 2,700 to 5,700 verified customer organizations (with cumulative/historical deployment estimates reaching up to ~18,400 businesses), primarily comprising U.S. SMB general and specialty contractors. ↗

MomentumLegacy and transitioning. While Sage 100 Contractor remains widely used and supported for its deep core accounting functionality, its on-premise architecture leads many contractors to migrate to modern cloud-native SaaS platforms. Parent company Sage actively steers expanding customers toward Sage Intacct Construction as its flagship cloud ERP growth platform. ↗