Expense Approval System — Workflow & Budgets
An expense approval system turns scattered emails and paper forms into a controlled multi-level workflow — every invoice, trip claim and cash advance routes to the right approvers, is checked against budgets in real time and lands in accounting bookable. We build it custom for your hierarchy, limits and cost centers — no per-user subscription.
What the solution includes
Every expense approval system we build is a custom app on your own backend — not a rented SaaS. You own the data and rules, with no lock-in.
- ✓Multi-level approval workflow — rules by amount, department and supplier, with conditional branches, leave delegation and auto-escalation after 48 hours.
- ✓Real-time budgets — every expense is checked against the cost-center budget; a request over the limit is blocked or flagged.
- ✓Receipt and invoice OCR — the employee snaps the receipt on a phone; OCR extracts supplier, date, amount and VAT.
- ✓Cash advances and travel claims — staff submit expenses by day, currency and category, with rates converted by document date.
- ✓Export to accounting software — ready journal entries by chart of accounts, analytics and VAT code, with two-way supplier sync.
- ✓Full audit trail — who approved or returned what and when, an immutable log for internal control and audit.
- ✓Mobile approval and notifications — push, email or messenger alerts; a manager approves from the phone in seconds.
- ✓Reports and dashboard — spend by department and period, average approval time and workflow bottlenecks.
Who it is for
50-300 people where email approvals are no longer traceable. A multi-level workflow with limits and auto-escalation cuts the cycle from days to hours.
Stores, branches or sites with local managers. Every request is tied to a cost center and checked against the budget, under central control.
Several legal entities under shared financial control. Each keeps its own budgets and chains, with consolidated reporting.
How we build it
We do not hand you a template with someone else's logic. We model your exact approval hierarchy, limits and chart of accounts. It is part of our software development.
1. Mapping the workflow and limits
We describe every expense type — who initiates, who approves, at what amount the next tier joins — plus cost centers and leave-delegation rules. The result is an approval matrix we validate before writing code.
2. Workflow engine and budget control
A configurable workflow engine lets routing rules change from an admin panel. Budgets run per cost center splitting committed and actual spend, so the approver sees the remaining limit at the moment of decision.
3. OCR, accounting and ERP integration
An OCR pipeline reads receipts from photo or PDF and extracts supplier, amount, VAT and date. Approved expenses post to your accounting software via API integrations or file export.
4. Pilot, training and tuning
We pilot with one department on real documents and calibrate the rules. Then we roll out org-wide with short training, and the workflow stays yours.
Why Saitami
Prices are fixed in EUR — no per-user fee. We often pair it with budgeting software for plan/actual control and contract management software when spend is tied to a contract.
Frequently Asked Questions
How much does an expense approval system cost?
From €3,200 for a package with multi-level workflow, cost-center budgets, mobile approval and export to one accounting package. A version with receipt OCR and two-way ERP integration starts from €6,500. You pay once for development — no per-user monthly fee, only hosting around €25-€90 per month.
Why custom instead of an off-the-shelf SaaS?
Off-the-shelf platforms impose their own logic and charge per user — at 50 approvers that is €400+ a month forever. A custom system follows your exact hierarchy, the data stays with you, and there is no growing subscription. That is why clients prefer custom budgeting software and approval built to order.
Which accounting software does it integrate with?
We have built exports to common accounting packages and custom ERP systems. Where an API exists we sync in real time; otherwise we generate an import file in your exact chart-of-accounts format, with the correct VAT code and analytics, so accounting only books and never re-keys.
How long does implementation take?
A standard rollout is pilot-ready in 5-7 weeks: one week mapping the workflow, three to four weeks of development, then one to two weeks of pilot and tuning. A version with OCR and complex ERP integration takes 9-12 weeks. We roll out in stages — one department first, then the whole organization.
Can we change the rules ourselves after launch?
Yes. Amount limits, approver chains, cost centers, budgets and escalation rules are all managed from an admin panel with no developer involved and no redeploy. The code and database stay with you, so there is no dependency on our support for day-to-day policy changes.
Ready to take control of expense approval?
Send a short description of your current process — who approves, at what amounts and which accounting software you use. Within 3 business days we return an approval matrix and fixed EUR quote.
Request a quote →Related services: contract management software · budgeting software · software development