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man in blue button up shirt
men's white crew-neck shirt
men's gray crew-neck shirt
man standing beside wall
woman on focus photography

10K+ Happy Customers

10K+ Happy Customers

10K+ Happy Customers

Payroll, Payments, and Time: Customized for Your Needs and Your Bottom Line

One login, one employee record, and live U.S.-based support, with no rate hikes and no junk fees, ever.

Trusted by operators across retail, food service, hospitality, auto services, healthcare, and many others

Why Mainspring

Why Mainspring

Why Mainspring

  • Everything you need to pay your employees or get paid in one place

  • Integrates with most general ledgers like QuickBooks, Sage, and Microsoft

  • Lower total cost: transparent pricing with an indefinite rate‑lock and no hidden fees.

  • Fast, human help: named manager, clear escalation paths, and real US-based people who pick up the phone. transparent pricing with an indefinite rate‑lock and no hidden fees.

Our Product Suite

For owners and operators who want fewer logins and fewer headaches.

Mainspring Payroll

Simple to Use Payroll, Customized to Your Operation

  • Integrated time & attendance solution

  • Single‑click processing or use our flexible entry grid

  • Automated federal, state, and local tax deposits and filings

  • Employee self‑service on web and mobile

  • Custom general ledger integrations

Mainspring Pay

Rates locked for life, no junk fees

  • 24/7 U.S. payments support

  • Pick your fit: interchange-plus, surcharge / cash-discount, or dual pricing

  • PCI Level 1, EMV, P2PE, tokenization, and rules‑based fraud tools

Mainspring Time

Time and attendance that prevents buddy punching and overtime surprises

  • Face recognition, rugged fingerprint, or mobile GPS with geofencing

  • Auto‑scheduling with meal/rest and overtime alerts

  • 7‑level job costing, 100+ reports, and certified payroll exports

  • Employee self‑service on web and mobile

  • Approved hours flow to Payroll with locations, jobs, and premiums

  • Know where your employees are with geotracking

Better together: Why one stack is better

  • Hire once: Add an employee in Payroll and they’re synced to Time automatically.

  • Pay accurately: Approved hours sync to Payroll with the right jobs and rates.

  • Reconcile faster: Payment deposits and fees auto‑post to your GL.

  • One team to call, one invoice to manage.

Support That Springs Into Action

  • Always reachable: Payments support 24/7/365; Payroll and Time support 7 a.m.–7 p.m. CT, Monday–Friday.

  • A named manager, clear escalation paths with time commitments.

  • U.S.-based experts who resolve issues, not tickets.

Implementation

Implementation

Security & Compliance

  • Payments: PCI DSS Level 1, encryption in transit and at rest, tokenization

  • Access controls: control what each employee is permitted to see and do

  • Secure logins: face/fingerprint capture, multi-factor authentication

Fast onboarding without the busywork

  • Dedicated implementation manager

  • Data migration (employees, taxes, GL), hardware provisioning, and training

  • Typical go‑live measured in weeks, not quarters

Frequently asked questions

Frequently asked questions

Everything you need to know about the product and billing.

Everything you need to know about the product and billing.

    • How does the indefinite rate‑lock work?

    • What types of payment processing programs do you offer?

    • How does Intercharge plus work?

    • How does surcharging work?

    • How does dual pricing work?

    • How does cash discounting work?

    • How fast is funding?

    • Can you handle multi‑location or multi‑EIN payroll and taxes?

    • What time capture methods do you support?

    • Can I see where my employees are when they’re clocked in?

    • Which industries do you serve?

    • How does the indefinite rate‑lock work?

    • What types of payment processing programs do you offer?

    • How does Intercharge plus work?

    • How does surcharging work?

    • How does dual pricing work?

    • How does cash discounting work?

    • How fast is funding?

    • Can you handle multi‑location or multi‑EIN payroll and taxes?

    • What time capture methods do you support?

    • Can I see where my employees are when they’re clocked in?

    • Which industries do you serve?

    • How does the indefinite rate‑lock work?

    • What types of payment processing programs do you offer?

    • How does Intercharge plus work?

    • How does surcharging work?

    • How does dual pricing work?

    • How does cash discounting work?

    • How fast is funding?

    • Can you handle multi‑location or multi‑EIN payroll and taxes?

    • What time capture methods do you support?

    • Can I see where my employees are when they’re clocked in?

    • Which industries do you serve?

Frequently asked questions

Everything you need to know about the product and billing.

    • How does the indefinite rate‑lock work?

    • What types of payment processing programs do you offer?

    • How does Intercharge plus work?

    • How does surcharging work?

    • How does dual pricing work?

    • How does cash discounting work?

    • How fast is funding?

    • Can you handle multi‑location or multi‑EIN payroll and taxes?

    • What time capture methods do you support?

    • Can I see where my employees are when they’re clocked in?

    • Which industries do you serve?

“We lowered processing costs and cut payroll time from hours to minutes WITHOUT juggling vendors.”

Aaira Wei,

Gaby Pereyra

Gaby Pereyra

Founder & CEO, Izumi, Inc.

Founder & CEO, Haven Lifestyles, Inc.

Founder & CEO, Haven Lifestyles, Inc.

Ready to move faster with fewer vendors?

Let’s map your quickest path to value and your locked rate.