Best Software for Purchase Requests Before Spend

Card controls stop a purchase at the point of payment. That is too late for some finance teams. A subscription renews at a higher tier, a department signs a contract, a manager books an event, and the first anyone in finance hears of it is the charge. Purchase-request software moves the decision earlier: someone asks, someone approves, and only then does money move.

Pick: Airbase

Airbase is positioned around request-to-pay: intake and approval come first, and cards, reimbursements and accounts payable follow from the approved request. That order matters. When the request is the source record, finance can see committed spend before it is spent, and every payment carries the approval that justified it. For a company whose biggest complaint is spend nobody signed off, it is the most direct fix of the three.

It is more process than a small team needs. If you only want a manager to say yes to a card limit, Airbase's intake will feel like paperwork.

Runner-up: Ramp

Ramp handles requests as a lighter step in front of its card and bill workflow. Its Slack integration lets admins and direct managers approve, edit or reject fund and reimbursement requests, and approve or reject bills, without leaving Slack, with those actions appearing in Ramp's audit trail. For a team that wants approvals to be fast and recorded rather than formal, that is enough, and the rest of Ramp's strengths come with it.

Third: Payhawk

Payhawk earns its place for groups with several entities. Its Slack agent lets approvers approve, decline or comment on expenses, purchase orders, cards and funds, and users who have not authenticated still get reminders but cannot act. Combined with its multi-entity model, that suits a finance team running purchase approvals across countries.

How to choose between them

Ask where approval should live. If it must exist before any payment method is chosen, pick Airbase. If it can be a quick yes inside the tools people already use, pick Ramp. If it must respect entity boundaries across countries, pick Payhawk. Then in the trial, approve a request, change its amount, and check whether the change sends it back for approval, which is the behavior that separates real request control from a notification.