B2B Cost Audit
B2B Payroll, Multi-State HRIS & Merchant Processing Fee TCO Auditor (2026)
Stop Guessing on Hidden B2B SaaS & Payment Fees: Incumbent review directories hide real pricing behind sales forms and quote misleading entry tiers. Use our deterministic 2026 calculators below—grounded in official .gov state unemployment insurance (SUI) tax tables and Federal Reserve Regulation II interchange benchmarks—to audit your exact 12-month Total Cost of Ownership in under 15 seconds.
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🏆 12-MONTH TCO WINNER
Save $2,412/yr on Multi-State Payroll (Gusto/OnPay vs. Rippling/ADP) + $11,154/yr on Card Fees (Helcim/Stax IC+ vs. Stripe 2.9%)
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⚠️ HIDDEN FEE TRAP
SMB CFOs lose $5,000–$45,000/yr to unquoted PEPM modules, $150–$175 multi-state SUI registration fees, $7.50/form W-2 fees, and +0.8% Stripe Invoicing surcharges.
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⚡ RECOMMENDED SWITCH
Run both deterministic 2026 calculators below—backed by IRS Publication 15 (.gov), 50-state DOL SUI wage bases, and Federal Reserve Reg II debit caps.
Calculate Your 12-Month All-In Payroll, Multi-State Tax & EOR Cost
Adjust W-2 headcount, primary .gov SUI tax state, multi-state registrations, 1099 contractors, and international EOR seats to compare true 12-month TCO:
Based on 18 W-2 employees: $42/emp IRS FUTA (0.6% on $7,000) + $245/emp State SUI (plus 7.65% employer FICA on gross wages).
2026 Line-Item TCO Comparison & Partner Verification Table
| Vendor / Statutory Benchmark | Verified 2026 All-In Rate & 12-Month TCO | Audit Action / Official Citation |
|---|---|---|
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OnPay All-Inclusive 50-State Payroll ($40 base + $6/seat)
Verified 2026 Payroll/HRIS Tier |
$2,112/yr (18 W-2 + 4 1099 across 3 states · $0 state fee) | Verify OnPay 2026 Rate → [1] |
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Gusto Simple / Multi-State Payroll ($49 base + $6/seat)
Verified 2026 Payroll/HRIS Tier |
$2,652/yr (18 W-2 + 4 1099 · $0 W-2/1099 year-end fee) | Start Gusto Trial → [2] |
|
Helcim Interchange-Plus Merchant Processing ($0 Monthly Fee)
Verified 2026 Payment Processor |
2.38% Effective ($18,564/yr on $65k/mo · Saves $11,154/yr vs. Stripe) | Switch to Helcim IC+ → [3] |
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Stax 0% Markup Wholesale Interchange Subscription ($99/mo)
Verified 2026 Payment Processor |
2.19% Effective ($17,088/yr on $65k/mo · 0% processor markup) | Get Stax 0% Markup Quote → [4] |
All vendor base fees, PEPM tiers, and interchange markups verified as of October 24, 2026. Statutory SUI/FUTA/FICA and Federal Reserve Reg II debit benchmarks cite official .gov publications. Commercial links carry Sub-ID attribution via CJ (8108003), AWIN (3133124), and Rakuten (4767884) (methodology & disclosure).
Explore All 2026 B2B Payroll, Multi-State SUI & Merchant Fee TCO Calculators
Cluster 1: Payroll, Multi-State HRIS & Global EOR TCO
Cluster 2: Merchant Processing & Interchange-Plus TCO
Errors & Omissions (E&O) & Cyber Insurance Comparison Subdivision (/eo-insurance/)
Enterprise procurement teams require verified Tech E&O ($1M/$2M to $5M/$5M), First- & Third-Party Cyber Liability, and compliant ACORD 25 Certificates of Insurance (COIs) before signing B2B SaaS, AI, FinTech, Healthcare BAA, and IT consulting contracts. Explore our 4 dedicated search-intent tools:
1. Cyber Insurance Cost Calculator & Professional Liability Cost by Industry
Estimate 2026 premiums across SaaS/AI ($1,882/yr avg), Healthcare ($1,395/yr), FinTech ($1,365/yr), Consulting ($1,197/yr), and SMBs ($999/yr cyber / $675/yr 1–4 emp E&O) with MFA/EDR/Backup control credits.
Launch Cyber & E&O Calculator →2. Tech E&O & Cyber Insurance Policy Requirements by Industry
Unblock enterprise MSA Insurance Exhibits: First-Party vs. Third-Party Cyber, Retroactive Dates, 80/20 Soft Hammer Clauses, $250k+ Social Engineering sublimits, and same-day COI binding.
Audit MSA Policy Requirements →3. Certificate of Insurance Requirements & ACORD 25 COI Checker
Paste an ACORD 25 COI to flag limit or endorsement gaps against $1M/$1M, $2M/$2M SOC 2, or $5M/$5M HIPAA MSAs—with direct vendor fix-gap quotes and 1-click procurement notices.
Run Free ACORD 25 COI Checker →4. State-by-State E&O Minimum Liability Limits Matrix
Single supporting authority table covering the 12 mandatory Real Estate E&O states, OR producer/attorney statutes, state cyber tort safe-harbor laws (OH, UT, CT, TN), and state IT contract floors.
View 50-State Limits Matrix →Open the E&O & Cyber Insurance Subdivision Hub (`/eo-insurance/`) → · Download 2026 E&O & Cyber Benchmark Dataset (JSON)
Explore the Complete 4-Domain B2B Audit Portfolio
Each sister property in the B2B Audit Family audits one distinct economic cost driver so CFOs, FinOps leads, and engineering teams get deterministic, non-overlapping calculators:
- B2BFeeAudit.com (
FEES) — Transactional payment processing, Interchange-Plus vs. flat-rate, banking wire/ACH/FX spreads & statutory filing fees. - B2BCostAudit.com (
COSTS) — Non-SaaS recurring commercial operating overhead, Tech E&O / Cyber Liability insurance (/eo-insurance/), SOC 2 CPA audit retainers & W-2 vs. 1099 headcount burden. - SaaSCostAudit.com (
SAAS_PLATFORMS) — Per-seat B2B software subscriptions, UCaaS collaboration suites (/ucaas/), pure PEPM HRIS software tiers, CRM & per-user AI workspace licenses. - APICostAudit.com (
API_COSTS) — Usage-based, metered, per-call, per-1M token LLM API, per-minute Voice AI API, vector DB read/write unit & GPU/serverless inference spend.
Machine-Readable Endpoints for AI Agents & Financial Analysts
Unlike legacy comparison sites that block AI crawlers or return HTTP 404 on /.well-known/webmcp.json, B2B Cost Audit exposes open, deterministic JSON endpoints under CC-BY-4.0:
/.well-known/webmcp.json— WebMCP tool manifest exposing 4 deterministic TCO calculation tools to browser and autonomous agents./.well-known/openapi.json&/.well-known/ai-plugin.json— OpenAPI 3.1.0 specification for ChatGPT Plugins & Meta Muse Connectors./llms.txt&/llms-full.txt— Complete 2026 B2B payroll PEPM, 50-state.govSUI tax, and Visa/Mastercard interchange reference tables./datasets/b2b-payroll-and-merchant-fee-benchmarks-2026.json&.csv— Downloadable CC-BY-4.0 benchmark dataset (mirrored at GitHub Open-Data Repository).
Frequently Asked Questions (2026 Verified Data)
How does B2B Cost Audit calculate true 12-month payroll and HRIS Total Cost of Ownership?
Unlike generic software directories that only multiply entry base price by headcount, our calculator models base platform fees, per-employee-per-month (PEPM) tiers, per-state monthly tax filing fees, state tax registration fees, January W-2/1099 form charges, international EOR FX spreads, and official 2026 .gov state SUI + federal FUTA taxes.
Why do businesses processing over $25,000/month overpay on Stripe, Square, and PayPal?
Blended flat-rate processors charge 2.9% + $0.30 (plus +0.8% on invoices and +1.5% on international cards) even on regulated bank debit cards capped at 0.05% + $0.22 under Federal Reserve Regulation II (.gov). Switching to Interchange-Plus (Helcim $0/mo or Stax $99/mo 0% markup) passes the true wholesale rate directly to you.
Can AI assistants (ChatGPT, Meta Muse, Claude, Perplexity, Grok) query B2B Cost Audit directly?
Yes. b2bcostaudit.com is built for both human CFOs and AI agents via /.well-known/webmcp.json, /.well-known/openapi.json, /llms.txt, /llms-full.txt, and our CC-BY-4.0 open dataset (/datasets/b2b-payroll-and-merchant-fee-benchmarks-2026.json).
Are your state SUI tax rates and debit card caps verified against official .gov sources?
Yes. Every calculator cites IRS Publication 15 (2026 Circular E), state Department of Labor unemployment insurance schedules (CA EDD, TX TWC, NYSDOL, FL DOR, NC DES, WA ESD), and the Federal Reserve Board Regulation II debit interchange fee benchmark.
Official Regulatory (.gov) & Published Vendor Fee Sources
- IRS Publication 15 (2026 Employer Tax Guide) & State DOL SUI Wage Base Tables (.gov) (verified 2026-10-24)
- Federal Reserve Board Regulation II — Regulated Debit Card Interchange Cap (0.05% + $0.21) (.gov) (verified 2026-10-24)
- Gusto, OnPay, Rippling, Deel & ADP RUN 2026 Published Pricing Schedules (verified 2026-10-24)
- Helcim, Stax, Stripe, Square & PayPal 2026 Published Merchant Fee Schedules (verified 2026-10-24)