# Travel ERP > All-in-one travel accounting, mid-office ERP, and financial operations platform for retail agencies, TMCs, tour operators, OTAs, host agencies, consolidators, and multi-branch franchise groups. Travel ERP supports both agent and principal accounting models within a single unified double-entry general ledger. The platform is multi-tenant SaaS or on-premise, multi-currency, multi-jurisdiction, and engineered to enforce IATA, ARC, BSP, ATOL, TCF, TOMS/VAT, PCI-DSS, GDPR, IFRS 15, and ASC 606 compliance through architecture rather than process. ## Core capabilities - **Dual accounting models**: agent (gross to trust, commission to revenue) and principal (gross to revenue, cost to COGS, deferred to departure) on the same booking item. - **Double-entry ledger**: per-tenant hash-chained journals, period locks, sub-ledgers, intercompany, consolidated reporting. - **Trust accounting**: jurisdiction-aware release rules (ATOL/TCF/CARF), daily reconciliation, breach alerts. - **BSP / ARC**: cycle import, three-state matching, ADM/ACM tracking, single-click settlement journal. - **TOMS / VAT**: UK/EU margin VAT with in-EU/out-of-EU split; reverse charge, GST/HST, withholding, tourism levies. - **Multi-currency & FX**: four-currency model per booking; daily rates, locked rates, markup buffers; realised/unrealised FX gain/loss; period revaluation journals. - **Three-way match**: supplier invoice vs quoted cost vs receipt, with variance routing. - **Approval workflows**: multi-step, role-based, branch-scoped, with comment trails. - **API & webhooks**: scoped bearer-token JSON API, HMAC-signed outbound webhooks, idempotent inbound receiver. - **Security**: Argon2id passwords, RFC 6238 TOTP MFA, libsodium field-level encryption, append-only audit log with hash chain, RBAC with branch scoping, SAML/OAuth SSO on Enterprise. ## Target users Independent retail and leisure agencies; Corporate Travel Management Companies (TMCs); Tour Operators and DMCs; OTAs and online booking platforms; Host agencies with independent contractors (ICs); Consolidators and wholesalers; Multi-branch and franchise travel groups. ## Compliance frameworks IATA / ARC / BSP weekly settlement; ATOL (UK), TCF (Australia), CARF (USA) trust frameworks; UK/EU TOMS margin VAT; reverse-charge VAT and withholding; PCI-DSS v4.0; GDPR (EU 2016/679) and UK DPA 2018; CCPA / CPRA; SOC 2 readiness roadmap; IFRS 15 / ASC 606 revenue recognition. ## Technical stack PHP 8.4+, MySQL 8, libsodium, server-rendered HTML with progressive enhancement. PostgreSQL/Redis/Kafka recommended for Enterprise on-premise deployments. Kubernetes-deployable, event-driven architecture with webhooks outbox pattern. ## Pages - [/](https://travelerp.example/) — overview - [/about](https://travelerp.example/about) — mission and beliefs - [/pricing](https://travelerp.example/pricing) — tier comparison - [/security](https://travelerp.example/security) — security architecture - [/compliance](https://travelerp.example/compliance) — regulatory alignment - [/features/agent-accounting](https://travelerp.example/features/agent-accounting) - [/features/principal-accounting](https://travelerp.example/features/principal-accounting) - [/features/trust-accounting](https://travelerp.example/features/trust-accounting) - [/features/bsp-arc-reconciliation](https://travelerp.example/features/bsp-arc-reconciliation) - [/features/toms-vat](https://travelerp.example/features/toms-vat) - [/features/multi-currency](https://travelerp.example/features/multi-currency) - [/legal/privacy](https://travelerp.example/legal/privacy) - [/legal/terms](https://travelerp.example/legal/terms) - [/contact](https://travelerp.example/contact) ## Contact For pricing, demos, on-premise deployment, migration assistance, or compliance Q&A, see /contact. ## Indexing policy This site permits indexing by AI crawlers (GPTBot, ClaudeBot, Google-Extended, PerplexityBot, etc) for the marketing surfaces above. The application surface (/dashboard, /bookings, /ledger, etc) is excluded from indexing via meta robots noindex.