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CMS, e-commerce & platforms

WHMCS module development and themes, from people who run a hosting company on it

We operate our own hosting brand, TPHOST, so WHMCS billing runs, failed payments and midnight renewals are part of our own working week. We build themes, order forms, modules and hooks that hold up through upgrades.

  • WHMCS work is quoted per project with a fixed written price within 24 hours of a free call.
  • A real person on WhatsApp within 15 minutes, Mon–Sat 10 am–7 pm IST, in Bengali, Hindi or English.
  • You own the work. Code, files, accounts and data stay in your name, with an NDA on request.

Updated by the Nexta Web Solution team

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Get a price for WHMCS theme & module development

Free call, then a fixed quote on WhatsApp. No obligation.

  • 5+ years experience
  • 10,000+ clients
  • MSME registered
  • ISO certified
  • PCI DSS certified
  • NIXI accredited

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  • 5+ years experience · 10,000+ clients

    Businesses in India, the UK, the Gulf and beyond

  • MSME · ISO · PCI DSS · NIXI

    Registered, certified and accredited. See details

  • Registered Pvt Ltd company

    CIN U62099WB2024PTC267968 · 2 offices in Hooghly

  • A real person on WhatsApp

    Reply within 15 minutes in office hours

WHMCS theme & module development at Nexta, in short

WHMCS module development at Nexta covers custom provisioning, registrar, addon and payment gateway modules, hooks and client area or order form themes for hosting companies and resellers. Because we run our own hosting brand, TPHOST, we work on WHMCS as operators, not just coders. We also handle WHMCS version upgrades and Indian payment and GST setup. Work is quoted per project with a fixed written price within 24 hours of a free call.

Program code on a computer monitor
PricingFixed quote in 24 hours
5+ years · 10,000+ clients

What hosting owners tell us about their WHMCS

“Our order form looks like every other host”

The default cart works, but it does not explain your plans, upsells feel bolted on and visitors drop off between choosing a domain and paying.

“The upgrade broke our client area”

Custom template edits made inside the default theme folder were overwritten, or old Smarty tags stopped working, and now clients see a broken page while you restore a backup.

“Money reached Razorpay but the invoice is still unpaid”

The customer paid by UPI, the gateway shows success and WHMCS never received the callback. Services stay suspended and the client is angry with your support team.

“Our panel or registrar has no WHMCS module”

You use a control panel, VPS platform or domain registrar API without an official module, so staff create accounts by hand after every order.

“The developer who wrote our module has disappeared”

The code is encoded or undocumented, it only runs on an old PHP version, and it is the reason you cannot upgrade WHMCS.

WHMCS module development and theme work

Client area and order form themes

Child themes built on Twenty-One or the newer Nexus theme, plus order form templates that show your plans clearly, group domain and hosting choices sensibly and keep the checkout short. Updates do not overwrite them.

Provisioning modules

Create, suspend, unsuspend, terminate, change package and single sign-on for control panels, VPS platforms, licence servers or any service with an API. Client area buttons for common tasks cut your ticket count.

Registrar modules

Register, transfer, renew, nameservers, contacts, EPP codes and domain sync for registrar APIs that WHMCS does not support out of the box.

Addon modules and hooks

Admin pages, client area tools, reports and automation through hooks: WhatsApp alerts on new orders, fraud rules, custom welcome flows, GSTIN validation and ticket routing.

Indian payment gateways

Razorpay, Cashfree, PhonePe or UPI setups with callbacks that WHMCS actually receives, partial payment handling and clean reconciliation against gateway settlements.

GST-ready invoicing

Tax rules so clients in your state see CGST and SGST and others see IGST, GSTIN on invoices, SAC code and invoice numbering your accountant signs off.

WHMCS version upgrades

We audit every custom template, module and hook against the new version, fix what breaks on a staging copy, then upgrade your live install in a planned window.

How we work on a live billing system

  1. 1Day 1-3

    Install review

    We check your WHMCS version, PHP version, theme, order forms, modules, hooks and cron setup on a copy of your install.

  2. 2Within 24 hours of the call

    Fixed quote and plan

    A written scope, price and go-live date, including what we will not touch.

  3. 3Week 1-4

    Build on staging

    Development happens on a staging copy with test gateways and a sandbox registrar or panel account, never against real customers.

  4. 4Final week

    Billing-cycle testing

    We run orders, renewals, upgrades, suspensions, terminations and failed payments through the full cycle before anything goes live.

  5. 5Launch day

    Deploy in a quiet window

    Backup of files and database, deployment outside your busy hours, then we watch the next cron runs and gateway callbacks.

What you get

  • Custom theme or order form as a child theme or separate template
  • Provisioning, registrar, addon or gateway module source code, unencoded
  • Hook files with comments explaining each trigger
  • Staging install for future testing
  • Upgrade compatibility report for every customisation
  • Gateway callback log and reconciliation notes
  • Admin documentation and a short video for your support staff
  • Code in a Git repository owned by you

Pricing

Fixed quote within 24 hours

WHMCS work is quoted per project with a fixed written price within 24 hours of a free call. Your WHMCS licence, any commercial themes or modules you choose and gateway fees are paid by you directly, at cost.

Get my quote Book a free call

Every price shows GST and the total. Nothing is added after you enquire.

Why a hosting operator is a safer pair of hands

We use WHMCS for our own hosting business

TPHOST, our hosting brand, sells shared hosting and Indian VPS. Renewals, failed payments, suspension timing and support load are problems we live with, so our modules are designed around how a hosting company actually runs.

Upgrade-safe by default

Changes go into child themes, separate order form templates, hooks and modules, never into core or default theme files. Your next upgrade should be a planned hour, not a lost weekend.

Code you can read and keep

We deliver plain, unencoded source code with comments. If you hire another developer later, nothing stops them from continuing the work.

Indian billing details are our daily work

UPI collections, GST invoices, Indian gateways and .IN domains are routine for us. Nexta is NIXI accredited for .IN registrations and PCI DSS certified.

Is this right for you?

A good fit if

  • Hosting companies and resellers in India running WHMCS with custom needs
  • Hosts abroad who want a WHMCS developer with operator experience under NDA
  • Providers whose panel, VPS platform or registrar lacks a WHMCS module
  • Anyone stuck on an old WHMCS version because of custom code

Probably not the right fit if

  • Help with a nulled or unlicensed WHMCS copy; we only work on licensed installs
  • Hosts who need a whole new billing platform rather than WHMCS work
  • Very small resellers whose needs are met by the default theme and an existing module

WHMCS theme & module development: frequently asked questions

Something else? Call +91 7500-4300-91 or WhatsApp us.

It depends on the module type and the API it talks to. A small hook or gateway fix is a short job; a full provisioning module with client area features takes longer. After a free call and a look at your install, you get a fixed written quote within 24 hours. Your WHMCS licence and third-party costs stay separate.

Yes, with preparation. WHMCS 9.0 needs PHP 8.2 or higher, moves templates to Smarty 4 and removes tags such as {php} and {include_php}, and makes invoices that are no longer drafts unchangeable, which affects custom code that edits them. We test every customisation on a staging copy, fix what breaks, then upgrade your live install.

If you trigger cron.php through an outside web request, WHMCS 9.0 now returns a 403 to direct HTTP calls by default. You either allow your scheduler’s IP address in the cron access setting or, better, run cron from the server command line. We set this up and confirm daily automation runs.

Not as built-in modules, apart from CCAvenue. Razorpay maintains its own WHMCS module, and other gateways offer modules of varying quality. We install and configure the right module, fix callback issues, or write a custom gateway module when the available one does not fit your needs.

We redesign the order form around your plans: clear comparison, sensible domain and hosting steps, fewer fields and visible renewal prices. We cannot promise a sales figure, but we test the flow on mobile with real people before launch and remove every step that confuses them.

That is how we build it. We use child themes and separate order form templates instead of editing the default folders, and we keep a note of each template we override. When WHMCS changes those templates, we can compare and update quickly.

We ask for a WHMCS admin account with only the permissions the job needs, SFTP or SSH access to a staging copy, and sandbox credentials for your gateway, panel or registrar. Live credentials are used only at deployment, stored in a password manager and removed when the job ends. Client data stays on your server; we do not copy your database to personal machines.

You do. We hand over unencoded source code in your own repository, with documentation. You can use it on your installs, change it or ask another developer to maintain it.

Yes. We work with hosts and resellers in the UK, Gulf, Australia and North America over email, WhatsApp and video calls. Fixed quotes in USD, GBP or AED are available on request, and we sign an NDA before you share access.

Sources: WHMCS 9.0 release notes · WHMCS developer docs: Themes · WHMCS docs: Payment gateways list · Razorpay WHMCS module on GitHub

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WHMCS theme & module development for businesses in Hooghly, Kolkata and worldwide

We are based in Hooghly, with offices in Ramanathpur and near the LIC Office in Chanditala. We work with businesses in Chanditala, Serampore, Chinsurah, Chandannagar, Uttarpara, Arambagh, Howrah, Kolkata and the rest of West Bengal, and we are happy to meet at our office or yours.

Talk to us in Bengali, Hindi or English, on WhatsApp or at our office.

Our Hooghly and Kolkata page

Head office

Ramanathpur, Hooghly

Plot No-229, Ramanathpur
Hooghly, West Bengal 712704
India

Mon–Sat, 10:00 AM – 7:00 PM IST

Directions

Branch office

Chanditala, Hooghly

Near LIC Office, Chanditala
Hooghly, West Bengal 712702
India

Mon–Sat, 10:00 AM – 7:00 PM IST

Directions

Talk to us about WHMCS theme & module development

Tell us what you need in two minutes. Reply within 15 minutes, Mon–Sat 10 am–7 pm IST.

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