Skip to content

Custom payment and billing software

Short answer: ANTLR Tech builds payment software for companies that have outgrown spreadsheets and disconnected apps — payment flows — deposits, splits, terms and gateways — wired into jobs and invoices, not stuck in a separate merchant dashboard. A first release typically ships in 6–14 weeks.

Serving
Worldwide
First release
6–14 weeks
Pricing
Fixed, after planning
Ownership
Yours, in full

Ask about payment software

Replies within 1 business day, from an engineer.

  • 45-minute session
  • No pitch deck
  • An engineer replies

Payment software, answered directly

What is payment software?

Payment software from ANTLR Tech is payment flows — deposits, splits, terms and gateways — wired into jobs and invoices, not stuck in a separate merchant dashboard. It is built for your operation rather than configured from a product, so the screens follow the way your team already works. Service, wholesale and subscription businesses with deposits, progress bills or terms.

How much does payment software cost?

It depends on scope, integrations and how many locations you run — so we don't publish a number that would be wrong for most people. What we do commit to is the shape: a short paid discovery, then a fixed price for a defined first release that you approve before any production code is written. No open-ended billing, and no surprise at the end.

How long does it take to build?

A first working release lands in 6–14 weeks from kickoff. We run two-week cycles with a demo at the end of each, so your team is using part of the system while the rest is still being built — rather than waiting for a single reveal at the end.

Who is payment software for?

Teams whose money movement doesn't match Stripe's happy path. Service, wholesale and subscription businesses with deposits, progress bills or terms. If an off-the-shelf product already fits without workarounds, we will say so — custom software only pays when the process is specific enough that rented tools fight you.

What’s included

What’s included in a payment software build

Payment software that respects how you bill — not a second checkout toy.

  • 01

    Checkout flows

    Card, link, terms or deposit.

  • 02

    Gateway integration

    Stripe and the rails you need.

  • 03

    Payment plans

    Schedules tied to milestones.

  • 04

    Reconciliation

    Match payouts to invoices.

  • 05

    Refunds & credits

    Adjustments with an audit trail.

  • 06

    Multi-currency

    Where you sell, when you need it.

  • 07

    Receipts

    Customer-facing proof that matches the job.

  • 08

    Finance export

    Into your ledger cleanly.

Operators already running on it

Logistics

−62%

Dispatch moved off the whiteboard. Four depots now plan from the same board, and invoicing takes hours instead of days.

Halden Logistics

Manufacturing

11 days

Quote to production start, down from twenty-six. Estimators and the floor read the same job record.

Cedarline Mfg.

Field service

15 hrs/wk

Returned to the office team. Job sheets, parts and signatures arrive as the crew finishes, not three days later.

Northbay Supply

How a payment software project runs

  1. 01 · 1–2 weeks

    Discover

    We map how work moves today, exceptions included, before anything is built.

  2. 02 · 1 week

    Plan

    A phased build, a fixed first release and a cost you can approve.

  3. 03 · 4–12 weeks

    Build

    Two-week cycles with your team testing as we go — live beside the old process first.

  4. 04 · Ongoing

    Improve

    New rules, branches and reporting as the operation grows.

Questions buyers ask about payment software

Is this a generic payment software product?

No. Payment software from ANTLR Tech is built around how your team already works, then replaces the spreadsheets and disconnected apps holding that process together. You are not configuring someone else's product to fit — the screens follow your steps, your terminology and your exceptions.

Can payment software integrate with what we already use?

Yes. Accounting, payments, email and the systems you intend to keep stay connected rather than being replaced for the sake of it. Anything with an API is in scope, and we agree the integration list during planning so nothing surfaces as a surprise mid-build.

Who owns the software?

You do. The repository, the hosting accounts and the data are yours from day one, documented at handover so another team could pick it up. There is no seat licence, and no fee that exists only to keep you with us.

How small can a first payment software release be?

One workflow your team runs daily. We deliberately scope the first release to the narrowest slice that removes real manual work, because a narrow release in production teaches us more than a wide one still sitting in staging. The rest follows once it is earning its keep.

Do we need a written specification before starting payment software?

No. Most clients arrive with a problem rather than a spec. Deciding what to build first — and what to leave alone — is the work of the discovery stage, and you keep the process map that comes out of it either way.

Can it replace the system we run today?

Usually, yes. We migrate historical records, run both systems in parallel for one cycle, and cut over only once your team confirms the new one is faster for daily work. Nothing is switched off before that point.

Talk to an engineer

Tell us how money actually moves.

Deposits, terms, splits — we'll map the payment system. A 45-minute working session — you leave with a process map and a recommendation, whether or not you hire us.

hello@antlrtech.comReplies within 1 business dayNorth America · Europe · Middle East · APAC

An engineer reads it, not a queue.