Bookkeeping & Advisory for the Trades

Specialized bookkeeping and advisory for auto shops and construction businesses.

You run the job. We run the numbers.

Choose Your Industry

Auto Shops

Parts vs labor margins, effective labor rate, and clean books that show what your bays actually earn.

See Auto Shop Services

Construction & Trades

Job costing, bid profitability, and financials that tell you which projects actually made money.

See Construction Services

Meet the CEO & Founder

I know what it looks like when a good business owner is quietly drowning.

You are the first one at the shop and the last one to leave. You are covering payroll, chasing parts, keeping the crew moving, and somewhere in the back of your mind is that nagging question you never quite have time to answer. Am I actually making money, or just staying busy?

That question is exactly why I started On Par. Nobody handed you a finance degree with your first work truck, and you should not have to lie awake over numbers no one ever taught you to read.

So here is our promise. When you work with us, you are not a file in a queue. We learn your business. We learn your name, your goals, and the reason you started this in the first place. Our team handles the books so the weight comes off your shoulders, and every month you get numbers you can actually understand, from people who genuinely want to see you win.

You built something worth being proud of. Let us help you see it clearly.

You run the job. We run the numbers.

Trisha Reynolds

Why On Par Bookkeeping & Advisory


Built for the Trades

We speak your language and not generic accounting. We focus on auto shops and construction so that we can be the experts for you.


A Full Team Behind You

You are backed by a full team and also get a dedicated account manager. That means you always know exactly who you are talking to.


Plain - English Reports

Know your numbers without needing an accounting or finance degree. We give you clear reports broken down so that you can easily understand them.


Advisory, Not Just Books

Quarterly strategy calls to improve your margins and grow your business.


Real Cost Savings

A full team for less than the cost of one in-house hire. No salary. No payroll taxes. No turnover.


No Tax-Time Surprises

Clean, tax-ready financials all year long. No April scramble, no missed deductions.

Not sure if your books need help?

Get a free 30-minute P&L review. We look at your last 3 months, identify your top money leaks, and tell you exactly where you stand. No cost. No obligation. You keep everything we find.

Book your free P&L Review