Software Development
Inventory & Accounting Systems
Custom inventory and accounting software that keeps stock, purchasing, sales and your books in one connected system — so counts are accurate, margins are real, and month-end stops being a spreadsheet marathon.
Inventory & Accounting Systems: the overview
When stock lives in one system and the books in another, the two drift apart: counts don’t match, cost of goods is a guess, and reconciling them eats days every month. A connected inventory and accounting system makes every purchase, sale and transfer update both sides at the same time, so what you have and what it’s worth always agree.
We build the system around your real stock flow — multiple warehouses, batches, units of measure, landed costs — and your accounting rules for tax, invoicing and reconciliation. That means accurate stock valuation, honest margins per product and order, and financial reports you can trust without a month-end scramble.
Because it is built for you, it fits your purchasing process, your pricing and your reporting, and connects to the bank statements, POS and e-commerce you already use where they offer an API or export. Your data is yours throughout and the code transfers to you on full payment, with no per-user fees that grow as your catalogue and team do. If you will later need HR, payroll or production too, see ERP module development.
What Inventory & Accounting Systems includes
Stock & Warehouses
Multi-warehouse inventory with real-time counts, transfers, batches, serial numbers and units of measure.
Purchasing & Suppliers
Purchase orders, goods receiving, supplier management and landed-cost tracking that keep valuation accurate.
Sales & Invoicing
Sales orders and invoices that draw down stock and post to the ledger automatically.
Accounting & Ledger
General ledger, accounts payable and receivable, tax and bank reconciliation in the same system.
Costing & Margins
Real cost of goods and margin per product, order and customer, not month-old estimates.
Reporting & Audit Trail
Stock valuation, aged payables and receivables, tax and financial reports, each figure traceable to its source document.
Who Inventory & Accounting Systems is built for
Distributors & wholesalers
Keep multi-warehouse stock and the books in step so valuation and margins are always right.
Retailers
Connect sales, purchasing and accounts so counts and cash reconcile without manual work.
Manufacturers
Track raw materials, work in progress and finished goods against real costs and orders.
Businesses juggling spreadsheets + accounting
Replace re-keying between stock sheets and accounting software with one connected system.
Is inventory and accounting software the right choice?
A good fit when
- Stock and the books sit in two systems that never agree, and month-end means reconciling them by hand.
- You need valuation your current tools handle poorly: weighted average or FIFO, landed costs, batches, expiry dates or serial numbers.
- You trade from several warehouses and need stock valued per location.
- You are a distributor, wholesaler or trading business and do not need HR, payroll or production modules yet.
Consider another option when
- You also need production, HR or other departments on the same system: see ERP module development or a complete custom ERP.
- Your accounting package works and only stock is the problem: keep it and connect a stock module to it through ERP integration.
- A single shop that mainly needs billing and stock: a POS system or our free Timeline POS may be enough.
Usually in a first release
- Item master, units of measure, warehouses and the valuation method you choose.
- Purchase orders, goods receipts and supplier invoices, matched three ways (order, receipt, invoice).
- Sales orders, deliveries and invoices that relieve stock and post cost of goods sold.
- Chart of accounts, posting rules, receivables, payables and bank reconciliation.
- Stock valuation, aged receivables and payables, and trial balance reports.
Outside the first release unless agreed
- Payroll, production and fixed-asset modules.
- Live bank feeds, unless your bank offers an API or statement file you can authorize.
- Tax-authority e-invoicing, unless confirmed in scope against the authority’s published interface.
- Full transaction history from the old system (normally opening balances and open documents only).
Anything outside the approved scope is reviewed and agreed before work begins. See how we work.
Data, controls, responsibilities and ownership
Data migration and integrations
- Opening balances: a trial balance at the agreed cut-off date, opening stock by item, warehouse and cost, and open receivables and payables by invoice. Your accountant signs off that the stock valuation equals the stock control account before go-live.
- Master data cleansing: duplicate items and suppliers merged, units of measure standardized and inactive items archived before loading.
- Bank reconciliation imports statement files in your bank’s format, or uses a bank API where your bank provides one.
- POS and online store sales arrive through the platform’s API or a daily import, so stock and the ledger update without re-keying.
- Where you want extra assurance, one period runs in both the old and new systems and the results are compared before cut-over.
Roles, approvals and audit
- Three-way match
- Supplier invoices are matched against the purchase order and goods receipt; differences above a tolerance you set need approval.
- Segregation of duties
- The person who creates suppliers or posts their invoices does not approve payments, and stock counters do not approve their own adjustments.
- Period close
- Closed periods are locked, and corrections go through reversing entries with a reason.
- Audit trail
- Every posting links back to its source document and to the user who created or approved it.
What we need from your team
- A named finance owner (your accountant or finance manager) who approves the chart of accounts, posting rules and opening balances.
- A recent stock count and trial balance at the agreed cut-off date.
- Sample documents: purchase orders, supplier invoices, delivery notes and credit notes.
- Exports from your current stock and accounting tools, bank statement files, and admin access to your POS or online store.
- Staff from stores and accounts to test during UAT.
Ownership, support and running costs
- Project source code, designs and documentation transfer to you on full payment, and your data is yours throughout; see our IP and ownership policy.
- Running costs fall into hosting, backups, bank or payment API fees where your provider charges them, and optional support.
- There is no per-user licence fee for the system we build.
- How financial data is hosted and protected: see security and data protection.
Related reading for this decision
- ERP module development
If purchasing approvals, production or HR modules will follow on the same data.
- ERP integration services
To keep your accounting package and connect stock, POS or e-commerce to it.
- How to build your own ERP
How to sequence modules and data when stock and accounts are the starting point.
- Security and data protection
How access, backups and hosting are handled for financial records.
How we deliver Inventory & Accounting Systems
Custom software built around the way your business works. Five steps, with a free pilot of 2 to 3 key modules before the full build.
Step 1: Understand
We learn how your business works.
Your requirements, workflow, challenges and goals, understood before anything is recommended.
Step 2: Plan
We design the right solution around your workflow.
Modules, workflows, roles, approvals, reports and integrations, agreed before development.
Step 3: Select Technology
Choose the right technical foundation.
Technology options matched to your users, security, budget and growth, not one fixed stack.
- Free pilot
Step 4: Pilot
Test our work before full project development.
Free. You choose 2 to 3 key modules and we build them first, so you can judge our work.
The full project starts only after you approve the pilot.
- Full project
Step 5: Build & Scale
From approved pilot to complete digital system.
Full development, testing, deployment, training and support, built to grow with you.
Inventory & Accounting Systems FAQ
Yes — that is the point. One system keeps stock and the books in sync, so a sale draws down inventory and posts to the ledger at the same moment. That removes re-keying and the monthly job of reconciling two tools that never quite agree.
Yes. You get real-time counts, transfers and stock valuation per warehouse, with consolidated reporting across all of them so head office always sees the true position.
Usually, yes. Bank reconciliation imports your bank’s statement files, or uses a bank API where your bank offers one, and POS and e-commerce orders come in through each platform’s API or a scheduled import, so stock and the ledger update without manual entry. Access to each system is confirmed during planning.
We migrate in a staged, reversible way: opening stock, opening balances, items, suppliers and customers are loaded into a staging environment and reconciled against your current systems. Nothing goes live until you have signed off that counts and figures match.
The method is agreed with your accountant during planning, typically weighted average or FIFO, with landed costs such as freight and duty added to item cost on receipt. Batch, expiry and serial tracking can be added where your products need them.
Your data is yours from day one, and the project source code, designs and documentation transfer to you on full payment. There are no per-user licence fees for the system we build, so it is yours to run and extend as your catalogue and team grow.
See working software before you commit
Before you commit to the full project, we build 2 to 3 of your key modules as working software, free of charge. Your team tests the pilot, and the full build starts only after you approve it.
See how the free pilot worksUnderstand
We learn your requirements and how your organisation works today.
Select pilot modules
Together we choose 2 to 3 key modules that prove the solution.
Build the working pilot
We build those modules as real, working software, free of charge.
You test it
Your team uses the pilot. The full project starts only after you approve it.
Start a conversation
Tell us how your business works.
Describe what is slowing your team down. We will help you work out what to build, and how a free pilot lets you judge our work before the full project.
Prefer WhatsApp? Start a chatWhat happens next
You send a short brief
The problem, the people involved and any target date. A senior engineer replies within 4 business hours.
We understand your workflow
A first call about how your business works today. An NDA can be signed before you share details.
You test a free pilot
You choose 2 to 3 key modules and we build them first, so you judge real software before the full project.