What Matters for Auto Shop Payroll
Auto repair payroll is not like other small business payroll. Most shops pay technicians on flat rate — a per-job production model where mechanics earn based on flag hours, not clock hours. That is piece rate pay with a different name.
I'm Tyson Faulkner. My background is in roofing, not auto repair, but piece rate works the same way across trades. A roofer gets paid per square installed. A mechanic gets paid per flag hour completed. Both need software that tracks production output and calculates pay from it — not just clock-in and clock-out times.
The problem is that most payroll software assumes every worker is hourly or salaried. When you try to run flat rate payroll through a standard tool, you end up doing the production math by hand, entering flat dollar amounts, and hoping you did not make a mistake. That is exactly the kind of manual work good software should eliminate.
This guide compares seven payroll tools for auto repair shops. I will be honest about what each one does well and where it falls short for flat rate pay.
Pricing listed was accurate as of April 2026 and may change.
Quick Comparison Table
| Software | Flat Rate / Flag Hour Support | Starting Price | Best For |
|---|---|---|---|
| Piece Work Pro | Native production tracking | Free (Solo) / $8/user/mo | Flat rate pay calculation + job costing |
| Gusto | None | $40/mo + $6/person/mo | Full-service payroll with tax filing |
| ADP Run | None | ~$79/mo + $4/employee/mo | Established shops wanting enterprise payroll |
| QuickBooks Payroll | None | $45/mo + $6/employee/mo | Shops already using QuickBooks |
| Paychex Flex | None | Custom pricing | Multi-location shops needing HR support |
| Shop-Ware | Built-in production tracking | Custom pricing | Shops wanting management + pay tracking |
| Tekmetric | Built-in production tracking | Starting at $199/mo | Shops wanting modern cloud-based management |
Here is the pattern: the general payroll tools handle tax filing beautifully but do not understand flag hours. The shop management systems track production beautifully but are not full payroll processors. The gap between production tracking and payroll processing is where most shops lose time.
1. Piece Work Pro — Best for Flat Rate Pay Calculation and Job Costing
Best for: Auto shops that need to track flag hours per tech, calculate production-based pay, and see labor cost per repair order.
I built Piece Work Pro for construction crews getting paid by the piece. But flat rate auto pay is the same model — a tech completes a job, flags a set number of hours, and earns based on that production. The tracking workflow is identical.
Pricing:
- Solo (1 user): Free forever. No credit card required.
- Team: $10/user/month (monthly) or $8/user/month (annual)
A shop with 5 techs, a service advisor, and a shop manager runs $56 to $70 per month.
Pros:
- Native production tracking — log flag hours per tech, per repair order, per day
- Automatic pay calculation from the flat rate you set for each technician
- Job costing that shows real labor cost per RO, not just total shop labor
- Mobile entry so techs or service advisors can log production from the shop floor
- Payroll-ready reports for export to your payroll processor
Cons:
- Does not handle tax filing or direct deposit — you need a separate payroll processor for that
- Not a shop management system — no parts ordering, digital inspections, or customer-facing features
- Built for production tracking and pay calculation, not full shop workflow
Bottom line: Piece Work Pro fills the gap that general payroll tools miss — the actual calculation of flat rate earnings from production data. Pair it with Gusto or QuickBooks Payroll for tax filing and direct deposit, and you have the production math handled natively instead of in a spreadsheet.
For a deeper comparison of flat rate vs piece rate, check out our guide on piece rate vs flat rate in auto repair.
2. Gusto — Best Full-Service Payroll with Tax Filing
Best for: Auto shops that want modern, clean payroll with automatic tax filing and benefits administration.
Gusto is one of the most popular payroll platforms for small businesses, and for good reason. The interface is clean, onboarding new hires is easy, and tax filings are handled automatically. If your biggest payroll headache is tax compliance and direct deposit, Gusto solves those problems well.
Pricing: $40/month base + $6/person/month. A 7-person shop runs about $82/month.
Pros:
- Automatic federal, state, and local tax filing and payments
- Easy employee onboarding with self-service portal
- Health insurance, 401(k), and workers' comp available as add-ons
- Clean, modern interface that non-accountants can actually use
Cons:
- Zero flat rate or flag hour support — assumes every worker is hourly or salaried
- No way to enter flag hours per RO and calculate tech pay from production
- No job costing or per-RO labor tracking
- You have to calculate flat rate earnings manually and enter the dollar amount
Bottom line: Gusto is excellent at processing payroll and filing taxes. But it does not understand flat rate. You would need to calculate each tech's flag hour earnings yourself — or use a production tracking tool like Piece Work Pro — and then enter the totals into Gusto. It is a great payment and compliance engine, not a flat rate calculator.
3. ADP Run — Best for Established Shops Wanting Enterprise Payroll
Best for: Larger or more established auto shops that want a big-name payroll provider with extensive compliance support.
ADP is the giant of the payroll world. ADP Run is their small business product, and it offers solid payroll processing with strong compliance features. If your shop has been around for decades and you want a provider with a long track record, ADP delivers that.
Pricing: Starts around $79/month + approximately $4/employee/month, though pricing varies by plan and region. You will need to get a custom quote.
Pros:
- Extensive tax filing coverage including multi-state
- Strong compliance support and HR tools
- Integration with a wide range of accounting and time tracking platforms
- Established reputation and long track record
Cons:
- No flat rate or production-based pay tracking
- Interface can feel dated compared to newer platforms
- Pricing is less transparent — you often need to call for a quote
- Overkill for a 3-tech shop that just needs basic payroll
Bottom line: ADP Run is reliable and comprehensive for standard payroll. But like Gusto, it does not understand flat rate pay. You calculate tech earnings outside the system and enter flat dollar amounts. The main advantage over Gusto is the depth of compliance support for larger or multi-state operations.
4. QuickBooks Payroll — Best for Shops Already on QuickBooks
Best for: Auto shops that run their books in QuickBooks and want payroll in the same ecosystem.
If you are already using QuickBooks for accounting — and a lot of auto shops are — adding QuickBooks Payroll keeps everything in one place. The integration between the books and payroll is seamless, which saves time at reconciliation.
Pricing: $45/month (Core) to $125/month (Elite) + $6/employee/month.
Pros:
- Direct integration with QuickBooks accounting
- Automatic tax calculations and filings
- Direct deposit with next-day options on higher plans
- Same-day direct deposit on Elite plan
Cons:
- No flat rate or flag hour tracking
- You calculate production pay outside QuickBooks and enter the result
- Job costing is time-based, not production-based
- Can get expensive with the per-employee fee on top of the monthly base
Bottom line: QuickBooks Payroll is the path of least resistance if you are already in the QuickBooks ecosystem. But the same limitation applies — it does not track flag hours, calculate flat rate earnings, or give you per-RO labor costs. You handle the production math separately.
For a broader look at how QuickBooks compares to piece rate software, read our comparison of QuickBooks vs piece work software.
5. Paychex Flex — Best for Multi-Location Shops Needing HR Support
Best for: Auto shops with multiple locations or growing operations that need HR services alongside payroll.
Paychex Flex is another enterprise-class payroll provider. Where it differentiates from ADP is in the bundled HR services — employee handbooks, compliance guidance, and dedicated HR support. If you are growing from one shop to three and suddenly dealing with more employee complexity, Paychex can help.
Pricing: Custom pricing — you need to request a quote. Expect a base fee plus per-employee charges similar to ADP.
Pros:
- Comprehensive payroll with tax filing across all states
- Bundled HR services including employee handbook creation
- Workers' comp administration
- Dedicated payroll specialist assigned to your account
Cons:
- No flat rate or production tracking whatsoever
- Pricing is not transparent — requires a sales conversation
- Can be more expensive than Gusto or QuickBooks for small shops
- The breadth of features means a steeper learning curve
Bottom line: Paychex Flex makes sense if you are growing and need real HR support beyond just payroll. But for flat rate pay, it has the same gap as every other general payroll tool — zero understanding of flag hours or production-based pay. You still need a separate system for the flat rate math.
6. Shop-Ware — Best Shop Management System with Production Tracking
Best for: Auto shops that want an all-in-one management platform that tracks technician production alongside customer-facing workflow.
Shop-Ware is a cloud-based shop management system built specifically for auto repair. Unlike the general payroll tools above, Shop-Ware actually understands how auto shops work. It tracks repair orders, manages parts, handles digital inspections, and tracks technician production — including flag hours per RO.
Pricing: Custom pricing based on shop size and features. Contact Shop-Ware for a quote.
Pros:
- Tracks flag hours per technician per repair order natively
- Digital vehicle inspections with photos and videos
- Customer-facing communication and approval workflow
- Real-time shop performance dashboards showing tech productivity
- Built specifically for auto repair shops
Cons:
- Not a full payroll processor — does not file taxes, process direct deposit, or handle W-2s
- You still need a separate payroll tool (Gusto, QuickBooks, ADP) for the actual payment and tax filing
- Pricing is not published and can be significant for smaller shops
- Larger feature set means more setup time and training
Bottom line: Shop-Ware solves the production tracking problem that general payroll tools miss. It knows what flag hours are. It knows what a repair order is. It tracks tech productivity natively. But it is a shop management system, not a payroll processor. You will pair it with a payroll tool for tax filing and direct deposit. The real question is whether you need the full shop management suite or just the production tracking and pay calculation piece.
7. Tekmetric — Best Modern Cloud Shop Management with Built-In Production Tracking
Best for: Tech-forward auto shops that want a modern, cloud-based management system with strong reporting and production visibility.
Tekmetric is a newer cloud-based shop management platform that has gained a strong following for its clean interface and data-driven approach. It tracks the full repair order workflow and gives shop owners real-time visibility into technician productivity, including flag hours.
Pricing: Starting at approximately $199/month for a single shop. Multi-shop and enterprise pricing varies.
Pros:
- Clean, modern interface built from the ground up as a cloud platform
- Tracks flag hours per tech per RO with real-time dashboards
- Strong reporting on shop efficiency, tech productivity, and parts margins
- Digital inspections, customer communication, and payment processing
- Active development with frequent feature updates
Cons:
- Not a payroll processor — does not handle tax filing, direct deposit, or compliance
- Starting price is higher than standalone payroll tools
- Requires a separate payroll solution for the payment and tax side
- Smaller ecosystem of integrations compared to established players
Bottom line: Tekmetric is the newer, cleaner alternative to legacy shop management systems. It tracks technician production well and gives you the data you need to calculate flat rate pay. But like Shop-Ware, it is a shop management tool, not a payroll tool. You still need Gusto, QuickBooks Payroll, or similar for the actual payroll processing.
How to Choose the Right Setup for Your Shop
The right answer depends on what problem you are solving.
If your main problem is "I need to file taxes and run direct deposit":
Go with Gusto or QuickBooks Payroll. They handle the compliance and payment side cleanly. Just know that you will calculate flat rate earnings outside the system.
If your main problem is "I need to track flag hours and calculate tech pay from production":
Go with Piece Work Pro. It handles the production math natively — flag hours per tech, per RO, automatic pay calculation, and job costing. Pair it with Gusto or QuickBooks for tax filing.
If your main problem is "I need a complete shop management system":
Go with Shop-Ware or Tekmetric. They track production alongside the full repair order workflow. Pair with a payroll processor for tax filing and direct deposit.
If you need everything:
The most common setup for shops serious about flat rate tracking is: shop management system (for the full RO workflow) + production tracking / pay calculation tool (for the flat rate math) + payroll processor (for tax filing and direct deposit). That might sound like a lot, but each tool does what it does best.
Use our Piece Rate Calculator to model your techs' earnings at different flag hour rates. And check out our guide on how much auto mechanics make on flat rate for detailed pay ranges by experience level and shop type.
Frequently Asked Questions
Can I run flat rate payroll through QuickBooks or Gusto?
You can process the payment through QuickBooks or Gusto, but neither tool calculates flat rate pay from flag hours. You need to figure out each tech's total flag hours for the pay period, multiply by their per-flag-hour rate, and enter the flat dollar amount. The payroll tool handles tax withholding and direct deposit from there.
What is the biggest payroll mistake auto shops make?
Not tracking actual clock hours alongside flag hours. Federal law requires that flat rate earnings divided by actual hours worked must meet at least minimum wage. If a tech flags 30 hours but was on the clock for 45 hours in a slow week, their effective rate is based on 45 hours — and it might fall below minimum wage. You must make up the difference. Read our guide on piece rate minimum wage compliance for the full breakdown.
Do auto techs on flat rate get overtime?
Yes. The FLSA requires overtime for flat rate (piece rate) workers. You calculate the regular rate by dividing total flat rate earnings by total actual hours worked. Then pay an additional 0.5x that regular rate for every hour over 40. For step-by-step math, see our guide on how to calculate overtime for piece rate workers.
Is Piece Work Pro built for auto shops specifically?
Piece Work Pro was built for any business that pays by production output — roofing squares, framing footage, or flag hours. The production tracking and pay calculation workflow is the same regardless of the trade. You set a rate per unit, log units completed per worker, and the system calculates pay. For auto shops, the "unit" is a flag hour.
How much does payroll software cost for a small auto shop?
For a 5-tech shop, expect $60 to $150 per month for a standard payroll processor (Gusto, QuickBooks, ADP). Add $40 to $70 per month for production tracking (Piece Work Pro). Shop management systems (Shop-Ware, Tekmetric) run $199+ per month but include production tracking as part of the broader platform.
Try Piece Work Pro free to see how production-based pay tracking works for your shop — no credit card required.