PaySimGlobal (.com available)

Simulate accurate multinational payroll before you run it.

Score: 5.2/10SSMedium Build
Brand Colors

The Opportunity

Problem

Payroll processing for multinational enterprise teams is error-prone and slow using current HR tech stacks, causing delays and employee dissatisfaction.

Solution

PaySimGlobal lets HR simulate payroll across currencies, taxes, and benefits for any scenario. Test what-if changes like raises or new hires instantly. Avoid costly mistakes and get employee-ready payslips pre-approved.

Target Audience

HR leaders and payroll managers in multinational enterprises with distributed, international teams

Differentiator

Scenario-based simulation with real-time currency conversion and tax previews from official rates.

Brand Voice

supportive

Features

Payroll Simulator

must-have25h

Input employee data; simulate net pay across countries.

What-If Scenarios

must-have20h

Adjust variables like salary, taxes, benefits; see impacts.

Multi-Currency Converter

must-have12h

Live forex rates integrated for payroll totals.

Payslip Preview

must-have15h

Generate and customize payslip templates per country.

Employee Bulk Import

must-have18h

CSV upload for 500+ employees with auto-country mapping.

Simulation History

must-have10h

Save, compare, and share past simulations.

Tax Rate Library

must-have15h

Up-to-date tax brackets for 100+ countries.

Export to Payroll Systems

nice-to-have16h

CSV/JSON export formatted for ADP, Gusto.

Collaboration Sharing

nice-to-have14h

Share sim links with team for approvals.

AI Scenario Optimizer

nice-to-have20h

Suggest optimal pay structures.

Benefits Integration

future25h

Add health/401k simulations.

Total Build Time: 190 hours

Database Schema

users

ColumnTypeNullable
iduuidNo
emailtextNo
company_iduuidNo

Relationships:

  • foreign key to companies.id

companies

ColumnTypeNullable
iduuidNo
nametextNo
stripe_idtextYes

simulations

ColumnTypeNullable
iduuidNo
company_iduuidNo
nametextNo
total_payintYes
datajsonbNo

Relationships:

  • foreign key to companies.id

employees

ColumnTypeNullable
iduuidNo
simulation_iduuidNo
countrytextNo
salaryintNo

Relationships:

  • foreign key to simulations.id

API Endpoints

POST
/api/simulate

Run payroll simulation

🔒 Auth Required
GET
/api/simulations

List user simulations

🔒 Auth Required
GET
/api/tax_rates/:country

Fetch tax rates

POST
/api/employees/import

Bulk import employees

🔒 Auth Required
GET
/api/payslips/:sim_id

Generate payslip preview

🔒 Auth Required

Tech Stack

Frontend
Next.js 14 + Tailwind CSS + shadcn/ui
Backend
Supabase Edge Functions
Database
Supabase Postgres
Auth
Supabase Auth
Payments
Stripe
Hosting
Vercel
Additional Tools
ExchangeRate-API (forex)pdf-lib (payslips)

Build Timeline

Week 1: Auth and UI base

40h
  • Onboarding
  • Dashboard

Week 2: Core simulator

45h
  • Basic sim engine
  • Tax library

Week 3: Bulk and exports

40h
  • CSV import
  • Payslip gen

Week 4: Payments and polish

35h
  • Stripe
  • Sharing

Week 5: Testing and launch prep

25h
  • E2E tests
  • SEO

Week 6: Nice-to-haves

20h
  • Exports
  • Collaboration
Total Timeline: 6 weeks • 225 hours

Pricing Tiers

Free

$0/mo

50 employees

  • 5 sims/month
  • 1 scenario
  • Basic payslips

Pro

$15/mo

500 employees

  • Unlimited sims
  • Unlimited scenarios
  • Exports

Enterprise

$149/mo

Unlimited

  • All Pro + Team collab
  • Custom taxes
  • White-label

Revenue Projections

MonthUsersConversionMRRARR
Month 1604%$90$1,080
Month 645010%$675$8,100

Unit Economics

$50
CAC
$450
LTV
4%
Churn
90%
Margin
LTV:CAC Ratio: 9.0xExcellent!

Landing Page Copy

Simulate Global Payroll Risk-Free

Test changes, currencies, and taxes before payroll day for distributed teams.

Feature Highlights

Live Currency Rates
What-If Scenarios
Country Payslips
Bulk Employee Support

Social Proof (Placeholders)

"'Transformed our planning process.' - CFO, MultiNat Co"
"'Accurate sims saved a disaster.' - HR Lead"

First Three Customers

Run LinkedIn ads targeting 'payroll manager multinational' ($100 budget), DM responders with free sim demo using public datasets, convert via 1:1 Zoom walkthroughs.

Launch Channels

Product Huntr/payrollTwitter SaaSHR Tech Slack

SEO Keywords

payroll simulator softwaremultinational payroll calculatorglobal payslip generatorinternational payroll preview

Competitive Analysis

$29/employee
Strength

Employer of record

Weakness

No standalone sim tool

Our Advantage

Pure simulation, integrates with any payroll

$40/base + $6/user
Strength

US-focused payroll

Weakness

Limited international

Our Advantage

Global sim without full switch

🏰 Moat Strategy

Accumulated simulation data for benchmarking pay structures across enterprises.

⏰ Why Now?

Inflation and currency volatility making payroll planning critical for multinationals.

Risks & Mitigation

technicalmedium severity

Tax rate accuracy

Mitigation

Integrate official APIs

executionmedium severity

Complex UI

Mitigation

User testing early

financiallow severity

API costs

Mitigation

Caching + tier limits

Validation Roadmap

pre-build5 days

Survey 15 payroll pros

Success: 8 want MVP

mvp10 days

Closed beta simulations

Success: 80% repeat use

growth30 days

Affiliate program

Success: 20% user growth/mo

Pivot Options

  • US-only tax sim
  • Benefits-only calculator
  • HR forecasting tool

Quick Stats

Build Time
225h
Target MRR (6 mo)
$1,200
Market Size
$18000.0M
Features
11
Database Tables
4
API Endpoints
5