What Brex AI does
Brex AI combines an employee expense assistant with audit, review, policy, receipt, categorization, accounting, and spend-insight automation across Brex's finance platform.
Brex AI spans the employee and finance sides of spend management. Assistant can retrieve receipts, draft memos, add attendees, assign spend limits and categories, answer policy questions, follow up on missing information, and work through Slack or mobile. Audit and Review Agents compare spend with policies and operating procedures, categorize potential violations by risk, auto-approve configured low-risk items, and escalate exceptions. Accounting automation suggests GL mappings and categorization, while natural-language insights help teams find patterns across expenses.
Essentials is listed at $0 per user monthly and includes cards, basic AI-powered rules, accounting integrations, bill pay, reimbursements, travel, reporting, and API access. Premium is $12 per user monthly and adds multiple policies, advanced and dynamic approvals, AI compliance detection, multi-entity support, and broader integrations. Enterprise and Smart Card are custom. Card underwriting and account eligibility, foreign exchange, travel, payment, financial-account, rewards, and negotiated terms can change total economics; a zero software seat price does not make every transaction free.
Brex explicitly warns that Assistant can make mistakes or produce inappropriate information. When enabled, autopilot is on by default for users, though admins and individuals can manage it. Calendar connection improves expense context but expands sensitive data access and should remain optional. Brex documents TLS 1.2 or better, AES-256 at rest, 2FA, device authorization, SSO, security engineering, and SOC 2 Type II. Finance teams must still independently verify receipts, attendees, business purpose, tax treatment, vendor accounts, policy exceptions, refunds, accruals, and ERP mappings.
How Brex AI works
A Brex transaction, reimbursement, bill, or request enters a policy and spend-limit context. Assistant retrieves receipts, proposes memos, attendees, limits, categories, or policy answers; audit and review agents identify exceptions and automate configured low-risk paths. Managers and finance teams inspect flags, accounting mappings, and reports before ERP export, payment, or consequential approval.
Capture spend under a limit
A card charge, reimbursement, bill, or request enters Brex with merchant, amount, employee, entity, policy, limit, and integration context. Preventive controls can block clearly prohibited spend before settlement.
Prepare expense documentation
Assistant finds receipts, drafts memos, suggests attendees, categories, limits, and policy answers, using optional calendar or other connected context. Employees verify business purpose and sensitive details.
Apply audit and approval agents
Agents compare the expense with policies and procedures, identify risk, follow up, auto-approve configured low-risk items, and escalate exceptions. Managers retain authority and inspect supporting evidence.
Post and reconcile accounting
Finance reviews GL mapping, tax, entity, accrual, refunds, and exceptions before ERP export. Card, reimbursement, bill-pay, cash, and ledger balances are reconciled and agent decisions sampled.
How to set up Brex AI
Define spend policy and responsibilities
Document entities, card eligibility, limits, categories, receipts, attendees, reimbursement, travel, bill pay, exceptions, approvers, accounting owners, and fraud escalation.
Choose the complete plan
Compare Essentials, Premium, Enterprise, card and account eligibility, FX, travel, payment methods, ERP and HRIS integrations, user counts, and support terms.
Secure identity and integrations
Enable 2FA or SSO, assign least-privilege roles, connect only required calendars and systems, and preserve separation among requester, approver, payer, and reconciler.
Pilot Assistant without blind trust
Test receipts, memos, attendees, categories, limits, policy questions, refunds, split expenses, missing documents, and false-positive violations; turn off autopilot where needed.
Validate accounting and close
Sample agent approvals, reconcile card and cash accounts, review GL mappings and accruals, inspect audit logs, and require finance approval before ERP posting or payment.
Brex AI FAQs
How much does Brex cost?
Essentials is $0 per user monthly and Premium $12 per user monthly. Enterprise and Smart Card are custom; eligibility, payments, FX, travel, and financial terms also matter.
What can Brex Assistant automate?
It can retrieve or match receipts, draft memos, identify attendees, suggest categories and limits, answer policy questions, follow up, and update configured expense information.
Is Brex Assistant autopilot enabled automatically?
For users whose administrator enables Assistant, autopilot is on by default. Individuals can disable autopilot or disconnect Calendar, and admins can disable features company-wide.
Can Brex AI make mistakes?
Yes. Brex expressly warns generated suggestions may be inaccurate or inappropriate. Employees, managers, and finance teams must verify material information and actions.
What security controls does Brex document?
Brex lists encryption in transit and at rest, 2FA, device authorization, biometric support, SSO, monitoring, penetration testing, incident response, and SOC 2 Type II.
Listing reviewed 2026-07-15. Product details and pricing can change; verify important terms on the provider's website.
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