Square rings up a Derby trade-counter sale but cannot apply the account customer's agreed price
A custom POS for a Derby trade counter or engineering supplier handles per-account pricing, live stock shared with the warehouse, and trade-credit terms that retail tills were never built for. Expect $35k to $90k and 3 to 6 months. The win is a counter that applies each account customer's agreed price, decrements the same stock figure your warehouse uses, and respects credit limits, instead of a retail till that assumes walk-in cash and one price for everyone.
You run a trade counter in Derby serving engineering and construction customers, and your sales are nothing like retail. Square, Toast, Clover and Lightspeed are built for walk-in consumers paying one price by card, but most of your customers are account holders with negotiated pricing, credit terms and order histories, buying parts and consumables that also need to leave the warehouse stock figure correct.
So the till becomes a fiction. Staff apply account discounts by memory or a laminated sheet, stock drifts because the counter and the warehouse track it separately, and credit-limit checks happen, if at all, in someone's head. A retail POS that cannot see an account's price, terms or true stock is not saving you time, it is quietly creating the reconciliation work you do at month-end.
The case for owning your pos
A custom POS earns its keep because a trade counter is an account business, not a retail one, and the till has to know each customer's price, terms and history. Build a counter that pulls the account's agreed pricing, shares one live stock figure with the warehouse, and checks credit before the sale, and the till stops being a fiction that creates month-end reconciliation and starts being the accurate front end of your trade operation.
What your build should include
What we build under POS in Derby
The engagements Derby teams bring us most often: payment processing integration, custom POS system, point of sale software, retail POS, restaurant POS and Square alternative.
Budgeting a pos build in Derby
| Project scope | Typical cost | Timeline |
|---|---|---|
| Trade-counter POS with account pricing and stock sync | $35k to $60k | 3 to 4 months |
| Full POS with credit checks and accounts integration | $60k to $90k | 5 to 6 months |
| Annual support and enhancements | $9k to $20k | ongoing |
Delivery, week by week
Exactly what you get
You get a counter that knows each account: their agreed price applied automatically, their order history for instant reorders, and a credit check before the sale completes, all decrementing one live stock figure your warehouse shares. The month-end reconciliation between counter and warehouse disappears. It connects to your inventory management system, your accounts software for invoicing, and feeds a business intelligence dashboard so you see which accounts and lines actually drive counter margin.
How to choose a developer in Derby
Pick a team that asks to stand at your trade counter and watch an account sale before they quote, because a Derby counter runs on account pricing and credit, not retail walk-in cash. Insist on live stock sync, credit checks and accounts integration. Avoid anyone who demos a retail till and waves away your account customers, agreed prices and the warehouse-stock truth.
- Each account customer's agreed price applied automatically, not from memory or a laminated sheet
- One live stock figure shared by the counter and the warehouse, so the count stops drifting
- Credit limits and terms checked at the till before an account sale completes
- Account order history on the counter, so repeat orders are recalled, not re-keyed
- Built for a Derby trade counter serving account customers, not a retail walk-in till
- A custom POS costs more than a Square or Clover subscription and card reader
- It needs integration with your stock and accounts systems, which adds setup work
- You own maintenance and hardware support instead of a retail vendor carrying it
- If you genuinely run cash walk-in retail with one price, a packaged till is the right choice
- !They demo a retail till; ask how it applies an account customer's agreed price
- !No stock sync; ask how the counter and warehouse share one live figure
- !No credit check; ask how a sale over an account's limit is handled
- !No accounts integration; ask how invoices and statements are produced
- !They quote before seeing your counter; ask them to watch an account sale first
Most Derby teams pricing pos end up comparing notes on supply chain, business intelligence dashboards, booking & scheduling too; the systems share one data spine.
Rohan advises mid-market and enterprise teams on ERP, CRM and custom software, and has led delivery on dozens of business-software builds.
Writes for Digital Heroes, shipping business software for 2,000+ brands across 55+ countries since 2017.
Frequently asked questions
Why does Square not work for a trade counter?
Square and similar retail tills assume walk-in customers paying one price by card. A Derby trade counter mostly serves account holders with negotiated prices, credit terms and histories, and needs the till to share live stock with the warehouse. Retail POS handles none of that natively, so staff fill the gap from memory.
How does account pricing work at the till?
The till looks up the account and applies their agreed pricing automatically, so staff never apply a discount from a laminated sheet or memory. The same lookup pulls their order history for quick reorders and checks their credit limit before the sale completes.
Will the counter and warehouse finally agree on stock?
Yes, because both read and decrement one live stock figure rather than tracking separately. That removes the drift that currently shows up as month-end reconciliation work, and it means a counter sale and a warehouse pick can never quietly double-count the same item.