Law firm client extranet cost in New York in 2026: build vs buy

The verdict in three sentences

For a 40-attorney business law firm in New York, a custom client extranet costs 60,000 to 150,000 USD with a local agency billing 150 to 250 USD per hour, or 40,000 to 95,000 USD with a nearshore or offshore team, delivered in 3 to 5 months. Market SaaS portals start around 50 USD per user per month and quickly reach 130 USD once time-based billing, e-signature and encrypted file sharing are added. Over three years and beyond 50 seats, building costs less than a full SaaS suite and gives the firm full control over hosting, and therefore over client confidentiality.

What a law firm extranet must include in 2026

Clients of a business law firm, general counsel, CFOs or founders, expect the same experience as their online bank: see where a matter stands, upload a document without email, check an invoice and approve a retainer. A useful extranet is built in modules, each priced separately. The table below gives 2026 ballpark figures for a 30 to 60 attorney firm, at nearshore rates of 45 to 80 USD per hour.

The low end covers a tight scope: one matter type, a read-only connector and a sober interface. The high end covers several practice groups (M&A, litigation, employment), client dashboards and two-way sync with the practice management system. The same scope quoted by a Manhattan agency at 150 to 250 USD per hour typically lands between 60,000 and 150,000 USD.

On compliance, one point deserves clarity. HIPAA-grade hosting is not required for a business firm unless it handles protected health information, for example in personal injury or medical malpractice matters. However, ABA Model Rule 1.6(c) requires reasonable efforts to prevent unauthorized disclosure of client information, and the New York SHIELD Act mandates reasonable safeguards for private data. In practice this means US hosting, systematic encryption, granular permissions and access logs. These requirements represent about 15 % of the budget, and this is where generic SaaS tools often fall short: unclear subprocessors, incomplete audit trails, limited SOC 2 scope.

Build or buy: the three-year math

An honest comparison runs over the tool's real lifespan, three to five years. Take 55 internal billable seats (40 attorneys and 15 paralegals and assistants), client accounts being included or billed separately depending on the vendor.

Entry-level SaaS still makes sense for a firm under 15 attorneys that only needs document sharing. As soon as time-based billing, milestone tracking and practice management sync enter the scope, the gap widens in favor of building. The firm also owns the code, which removes the risk of price hikes or a vendor acquisition.

The levers that move the quote

Three factors explain most of the gap between two quotes. The first is the number of matter types to model: a boutique needs one flow, a full-service firm needs four or five. The second is the depth of the practice management integration: a read-only view costs a third of a two-way sync of time entries and invoices. The third is security: an external penetration test adds 5,000 to 10,000 USD, but it is strongly recommended to reassure in-house legal teams at large corporations, who increasingly require it in outside counsel guidelines.

A phased approach limits risk: a first 8 to 10 week release covers the matter space and encrypted sharing, then billing and connectors arrive in a second phase, funded by the first productivity gains.

Mini case study

Daniel Weiss, managing partner of a 40-attorney business firm in Midtown Manhattan, finds that his assistants spend 25 hours a week, combined, emailing documents, chasing clients and answering status requests. At a 65 USD fully loaded hourly cost, that is 1,625 USD per week, about 74,750 USD a year over 46 working weeks.

The firm chooses a custom extranet built by a nearshore team for 70,000 USD, with 10,000 USD a year for hosting and maintenance. The tool absorbs 70 % of those tasks, saving 52,325 USD a year. Net annual gain: 52,325 minus 10,000, or 42,325 USD, for a payback in 1.7 years. Compared with the full SaaS suite at 262,400 USD over three years, the saving reaches 162,400 USD (262,400 minus 70,000 minus 30,000 of maintenance), not counting the business development edge with corporate clients.

FAQ

Does a law firm need HIPAA-compliant hosting?

No, unless it handles protected health information, for example in personal injury work. In that case, a HIPAA-ready host with a signed BAA adds 15 to 30 % to the annual hosting budget, roughly 1,200 to 3,500 USD a year for an extranet of this size.

How long does it take to launch the extranet?

Plan on 3 to 5 months: 3 weeks of scoping, 8 to 14 weeks of development and 3 weeks of acceptance testing with a pilot group of 5 to 10 clients. A first operational release can ship in 10 weeks.

Can the extranet connect to our current practice management software?

Yes, through the vendor's API or scheduled imports and exports. The connector costs 6,000 to 14,000 USD depending on whether it is read-only or two-way, and should be priced after reviewing the vendor's documentation.

Who owns the code and the data?

The contract should assign intellectual property to the firm and include a reversibility clause. Data stays with a US host chosen by the firm, with a full export available at any time.

What should we budget for maintenance?

Plan on 10 to 15 % of the initial budget per year, so 7,000 to 14,000 USD for a 40,000 to 95,000 USD project. This covers hosting, security updates and a small volume of enhancements.

Let's scope your project. We scope your extranet module by module, with an indicative budget of 40,000 to 95,000 USD and a first release deliverable in 10 weeks. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.