Is it cheaper to buy an off-the-shelf CPQ tool or have someone build a custom quoting system for our sales team?
The short answer
Off-the-shelf CPQ wins on cost almost every time. Salesforce CPQ starts around $75/user/month, and mid-market tools like PandaDoc or Proposify run $19-$59/user/month. Custom builds typically cost $50,000-$250,000 upfront plus ongoing maintenance, per Clutch's development cost data — rarely justified unless your pricing logic is genuinely unique.
The math almost always favors buying
Enterprise CPQ platforms like Salesforce CPQ start around $75 per user per month billed annually. Mid-market tools built for smaller sales teams — PandaDoc, Proposify, Qwilr — typically run $19 to $59 per user per month, and most include templates, approval workflows, and e-signature out of the box. For a five-person sales team, that's $1,140 to $4,500 a year in licensing. Even the pricier enterprise option lands at roughly $4,500 a year for the same headcount.
Custom quoting systems don't compete at that price point, not because the idea is bad, but because software development is expensive labor. Clutch's cost research on custom software projects puts small-to-midsize builds at $50,000 to $250,000, and that's before you account for the thing every founder underestimates: maintenance. A quoting tool isn't a one-time build — it needs updates when your price list changes, when a sales rep finds a bug mid-quote, when you add a new product line with different margin rules. Budget 15% to 20% of the original build cost annually just to keep it running.
Where custom actually makes sense
The case for custom isn't zero. If your pricing involves genuinely unusual logic — multi-tier volume discounts tied to inventory levels, regulatory approval chains specific to your industry, or quoting that has to pull live data from a proprietary ERP with no API — off-the-shelf tools can force you into workarounds that cost more in lost deals than the build would have cost. Complex manufacturers with deep bill-of-materials structures sometimes land here. But that's a narrow slice of B2B companies, not the default case.
The more common mistake is founders assuming their pricing is more unique than it actually is. Most B2B quoting — even multi-line projects with sub-assemblies or escalators — fits inside the configuration options that mainstream CPQ tools already support. Before committing to a build, it's worth testing whether a $50/month tool can actually replicate your spreadsheet logic. Most of the time it can.
Off-the-shelf vs. custom, side by side
| Off-the-shelf CPQ | Custom-built system | |
|---|---|---|
| Upfront cost | $0-$5,000 setup, usage-based | $50,000-$250,000+ |
| Time to live | Days to a few weeks | 3-9 months typical |
| Ongoing cost | Monthly per-user license | 15-20% of build cost yearly in maintenance |
| Flexibility | Limited to vendor's config options | Unlimited, but you own every bug |
| Who maintains it | The vendor | You, or whoever you hired to build it |
| Best fit | Standard multi-line quoting, escalators, approvals | Deeply nonstandard pricing logic, ERP-tied workflows |
The hidden cost nobody prices in
Even when a custom build gets delivered on budget, the real cost shows up later: the developer who built it leaves, the documentation is thin, and now a sales ops hire with no context has to reverse-engineer pricing logic from code comments. Off-the-shelf tools don't eliminate that risk entirely, but vendor support, public documentation, and a community of other users troubleshooting the same platform make it far less likely you're stuck.
Where SalesARC fits
SalesARC Propose is an off-the-shelf quoting tool built for founder-led B2B companies — multi-line quotes, e-signature, and CRM-connected pricing without a development project. Basic starts at $99/month, Standard at $249/month, and Enterprise at $749/month. It won't handle a fully custom ERP-tied pricing engine, and we'll say so if that's genuinely your situation — but for the majority of companies still quoting out of spreadsheets, it replaces the custom-build conversation entirely. More at /product/propose.