Expense Approval Workflow and Delegation: A Setup Guide

When an expense report lands in the approval queue, whose screen it goes to, at what amount a second signature kicks in, and how the process continues while the approver is on leave are, in most companies, governed by unwritten habits. In this article we walk step by step through the core design of an expense approval workflow for a single company, delegation (proxy) scenarios, and the most common mistakes made during setup.

Structures that manage multiple companies or subsidiaries under one roof require a separate architecture; we covered that topic separately in our multi-entity spend approval workflow guide. This article focuses on the core setup for a single company.

What is an expense approval workflow?

An expense approval workflow is the process that defines in what order, by whom, and according to which rules the expenses declared by an employee are checked before they turn into a payment. In a well-designed workflow, three questions are answered up front:

1. Who approves? The manager, the budget owner, or accounting?
2. Under which conditions do how many levels apply? Do small amounts pass with a single signature while large amounts fall to an additional level?
3. What happens if the approver is unavailable? In case of leave, travel, or a busy period, with whom does the process continue?

Moving to a tool before these three questions are answered clearly does little more than transfer the chaos on paper onto a screen.

The building blocks of the workflow: rule groups, thresholds, and levels

A modern approval design consists of three core parts:

Rule groups. Employees are divided into groups by department, organization, or role. The sales team's expense and the IT team's expense do not have to travel the same path.

Thresholds. These are amount-based limits. For example, reports below 500 TL are closed directly with the manager's approval, while reports exceeding the threshold move up to a higher level. This way, small expenses flow quickly and large expenses get extra control.

Approval levels. These are the rules arranged in sequence: first the user approval, a second approver when the threshold is exceeded, and if necessary a final approver who closes the process.

These parts can also be combined across different dimensions:

• Approval by category: Meal expenses go to one person, transportation expenses to another; when the threshold is exceeded, the senior approver of the same category steps in.
• Approval by organization: Each unit or project routes to its own approver; for amounts above the threshold, that unit's senior approver takes over.
• Grade structure: Spending approval limits are defined per position. The report first goes to the direct manager; if the amount is below the manager's limit it is approved, if above it moves up to the next manager. This chain continues until the report is approved or rejected.

Delegation: keep the process moving when the approver is away

Even the most solid design has one weak point: the approver not being available at that moment. Annual leave, a long business trip, or a busy closing period all lead to the same outcome: pending reports pile up, payments are delayed, and trust erodes on the employee side.

Delegation (proxy) steps in exactly at this point: a manager temporarily transfers their approval authority to a colleague for a defined period. Typical scenarios:

• Leave period: A department manager going on two weeks of leave delegates their approval authority to their deputy; when they return from leave, the authority reverts to them.
• Travel: A manager with a heavy travel schedule sets up a delegation so that reports accumulating while they are on the road do not wait.
• Seasonal workload: During budget or closing periods, the approval load is temporarily shared.

This way the workflow continues without interruption and important transactions are completed on time. Having the delegation defined in the tool also eliminates untraceable workarounds like "I'm approving on their behalf via email."

The most common setup mistakes

1. Squeezing everything into a single workflow. Binding the entire company to a single rule either leaves small expenses waiting at unnecessary levels or lets large expenses pass without sufficient control. Separate rule groups according to the reality of departments and amounts.

2. Not keeping thresholds up to date. Amount thresholds set two years ago can, at today's price level, push almost every report to a higher level. Review thresholds periodically.

3. Not treating delegation as part of the workflow. If the delegation rule is not defined from the start, the process effectively stops during the first leave period and approvals begin to be obtained through off-the-record channels.

4. Going live without testing the workflow. Even if the design looks correct on paper, which approvers a real report will pass through is something you should see first; going live without it invites surprises. In Masraff, before sending a report for approval you can simulate the workflow and see in advance who it will go to.

5. Neglecting traceability. If, when asked which report passed through whose approval on which date, the answer lives in scattered emails, the audit period becomes painful. Keeping the transaction history in the tool removes this burden; approvers and employees can also resolve questions on record by commenting directly on the report.

A step-by-step setup approach

1. Put the current state in writing. Today, whose hands does an expense actually pass through? The official rule and the actual practice often differ; note both.
2. Define the rule groups. Divide employees into groups by department, organization, or role; clarify each group's approvers.
3. Define the thresholds. Up to what amount is a single approval enough, and beyond what amount does the second level kick in? Determine the mandatory approver who has the final say.
4. Add the necessary dimensions. If category-based or organization-based routing is needed, build it into the rule; if you will work with position limits, set up the grade structure.
5. Define delegation rules from the start. Determine to whom authority is transferred in each approver's absence.
6. Test the workflow, then go live. See in advance who the workflow routes sample reports to; if there is unexpected routing, fix the rule.
7. Set a periodic review schedule. As the organization changes, thresholds, groups, and approvers must be updated too.

If you would like some input before putting your design on paper, you can draft a workflow suited to your own scenario with our approval process builder tool.

Conclusion

A good expense approval workflow strikes the balance between speed and control with amount-based thresholds, well-designed levels, and delegation rules defined from the start. This structure is not a one-time setting but a process that lives and evolves with the organization. Masraff's approval and control solution lets you manage rule groups, thresholds, category- and organization-based routing, the grade structure, and delegation from a single place; you can preview the workflow before sending it for approval and trace past approvals retrospectively at any time.