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Custom ERP Development in the US
Custom ERP Development for businesses in the US - building the operational backbone when a packaged ERP does not fit how the business actually runs. Fixed quote in USD, a clickable prototype before the build, and the source code in your ownership.
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Custom ERP Development in the US: the short answer
- What it is
- Custom ERP Development for businesses in the US - building the operational backbone when a packaged ERP does not fit how the business actually runs.
- Typical timeline
- Realistically six to eighteen months depending on scope, phased so each release delivers before the next starts.
- What it costs
- We quote a fixed price in USD after a discovery session, broken into phases so you are never committing to the whole build on day one.
- Local specifics
- Multi-state sales tax by ship-to address (Avalara where needed), 1099 and payroll tax tracking, QuickBooks migration, CCPA-aware data handling in Zoho’s US data center, and delivery across US time zones (ET to PT).
- Delivered by
- Shyphan AI Solutions. Support on US business hours (ET to PT). Call +1 840 688 8419.
- Last reviewed
- October 24, 2026
Why US businesses build with Shyphan
- Fixed quote in USD agreed before a line of code is written
- A clickable prototype before you commit to the build
- Source code, repositories and cloud accounts in your ownership
- Accessible, WCAG-tested interfaces rather than an accessibility audit after launch
- Delivery and support on US business hours, Monday to Friday
What Custom ERP Development actually delivers
Custom ERP Development means building the operational backbone when a packaged ERP does not fit how the business actually runs.
For US teams that matters because multi-state sales tax, 1099 and payroll reporting, and state privacy laws have pushed businesses toward systems that produce compliant records by default. We build for US mid-market businesses whose process is too specific for a standard ERP and too big for spreadsheets, and we say no when a packaged product would do the job better than a custom build.
We work in Zoho Creator and the Zoho suite where low-code fits, or a custom stack on Node.js, Python and PostgreSQL where it does not, chosen because they are maintainable and widely supported, so you are never locked to us by an exotic technology choice.
Our certified Zoho team
Custom ERP Development across the US
We deliver custom ERP development for clients in New York, Chicago, Los Angeles, Dallas, Portland, Boston, Seattle and Denver. Projects run remotely on US business hours with on-site workshops in New York, Chicago and Los Angeles where discovery or training justifies it.
A parent-company license, a group entity and a branch office often sit under one owner here, so the software has to keep entities clean while giving the group one view. Whatever the sector, the failure mode is the same: software built without the people who use it, and abandoned within a year. Discovery is where we prevent that.
Most clients look at these next: Custom ERP Development in Los Angeles, Custom ERP Development in New York and Custom ERP Development in Chicago.
The stack we build on
Chosen for maintainability and for the fact that you, or anyone you hire later, can work on it. Nothing exotic that only we can support.
Getting Custom ERP Development right in the US
Software for US businesses has to handle sales tax, privacy and security reviews from the first release. This is how we approach Custom ERP Development.
Sales tax by design
Anything that bills calculates sales tax by address, through Avalara where you sell into many states, with exempt customers handled by certificate.
Ready for security reviews
Access control, audit logs, encryption and backups are documented in the shape SOC 2 questionnaires and enterprise buyers ask for.
Accessible by default
Interfaces are built toward WCAG 2.1 AA, which keeps public-facing tools out of avoidable ADA disputes.
Privacy documented
Hosting, retention and data subject requests are designed for the CCPA and other state laws, with HIPAA safeguards where health data is involved.
How a custom ERP development project runs
Five stages, a prototype before the build commitment, and a fixed price in USD agreed up front.
Discovery and scope
Workshops with the people who will use it, a written scope and a fixed price in USD before anything is built.
Prototype before build
A clickable prototype you review and change cheaply, so disagreements happen in Figma rather than in code.
Build in two-week increments
Working software you can see and use every two weeks, with priorities you can change between increments.
Testing and UAT
Automated tests on the paths that matter plus scripted UAT on your own scenarios before release.
Launch, handover and support
Deployment into your own cloud account, documentation, training and an optional support retainer on US business hours.
What US compliance means for Custom ERP Development
There is no federal VAT in the United States. Tax work is split between the IRS and up to 46 state tax authorities, and it follows where you have nexus, not where you are based. These are the rules a US setup has to get right.
| Obligation | What the rule is | What has to be configured |
|---|---|---|
| Sales and use tax | 45 states and Washington DC levy a statewide sales tax, and many cities and counties add their own. You collect where you have nexus: a physical presence, or economic nexus since the 2018 Wayfair decision, commonly $100,000 of sales into a state. Marketplaces collect for their sellers under marketplace facilitator laws. | Tax calculated from the ship-to address (directly or through Avalara), exemption certificates stored for resale and exempt customers, and a sales tax liability report by state and filing period. |
| Income tax | C corporations pay 21% federal corporate income tax on Form 1120, plus state corporate tax where they have nexus. LLCs and S corporations usually pass income through to their owners. | A chart of accounts that maps to the return, clean entity separation, and 1099 vendors flagged so contractor payments are tracked as they happen. |
| Payroll taxes | Federal income tax withholding, Social Security and Medicare (FICA), and federal and state unemployment tax. Form 941 is filed quarterly and W-2s go to employees by January 31. Contractors paid $600 or more get a 1099-NEC by the same date. | Payroll run through a US payroll provider or Zoho Payroll where available, with journals posting to the ledger and employee versus contractor status recorded on every person. |
| Hiring and HR | Form I-9 employment eligibility verification for every new hire, E-Verify in some states, and state-specific rules on paid leave, overtime and final pay. | Onboarding checklists with I-9 deadlines, document tracking, and leave and overtime policies configured by state where you have employees. |
| Privacy and security | No single federal privacy law. California's CCPA (as amended by CPRA) and comprehensive laws in a growing number of states give consumers access, deletion and opt-out rights. HIPAA applies to health data, CAN-SPAM to email and the TCPA to calls and texts. Customers increasingly ask for SOC 2. | Accounts provisioned in Zoho's US data center, role-based access and audit logs, consent and deletion workflows, and a business associate agreement in place before any health data is stored. |
The filing calendar
- Monthly, quarterly or annuallySales tax returns in each state where you are registered, at the frequency each state assigns
- QuarterlyForm 941 payroll tax return and estimated income tax
- January 31W-2s to employees and 1099-NEC to contractors
- April 15Form 1120 for calendar-year C corporations (March 15 for S corporations and partnerships)
Who you file with
- Federal income and payroll taxInternal Revenue Service (IRS)
- Sales and use taxEach state's department of revenue (or comptroller) where you are registered
- Unemployment insuranceEach state's workforce agency
- Employment eligibilityUSCIS Form I-9
We configure the system to produce what these returns need, and we test it against your own transactions before go-live. We are not tax advisers: your CPA or tax preparer signs the returns, and thresholds and rates change by state, so treat this as the shape of the work rather than advice. Last reviewed October 24, 2026.
Industries we serve in the US
From technology and finance to manufacturing, healthcare, retail and professional services.
Backed by a certified Zoho team
Our consultants are certified across Zoho CRM, Books, One, Creator, Analytics and People, and we stay active in the Zoho community, including Zoholics. You work with senior people who know the platform inside out.
From discovery to go-live and ongoing support, the same team stays with you, available across US time zones (ET to PT) by call, email and screen-share.
Whether you are moving off spreadsheets or scaling an existing Zoho setup, our certified team does the heavy lifting and trains yours to own it with confidence, so your investment keeps paying off long after go-live.
Trusted by teams worldwide
What US clients typically get
Typical outcomes on our US projects. Every engagement is scoped to the business.
Built for US buyers
Accessibility, privacy and security designed in from the first screen, so enterprise and public-sector reviews go smoothly.
Software you own
Full source code, documentation and deployment scripts handed over, so you are never dependent on us to make a change.
Support on US hours
Sprint demos, releases and support overlapping US business hours, with a fixed, phased quote in USD.
Related pages you may want next
Custom ERP Development US: questions answered
Can Custom ERP Development calculate US sales tax?
Will Custom ERP Development pass a customer’s security review?
Should we build a custom ERP or configure Zoho?
How long does a custom ERP take?
What happens to our existing data?
How much does custom ERP development cost in the US?
What happens after launch?
Can you work in English as well as English?
Can we speak to a reference client?
What happens if we want to leave?
More on Custom ERP Development in the US
Related development services in the US
Ready to scope your custom ERP development project?
Book a free discovery call. We will tell you whether this should be custom at all, and if it should, what it will realistically take.
- Fixed quote in USD
- Prototype before build commitment
- Source code in your ownership
- Support on US business hours
