Contractor bookkeeping & back office
You run the jobs. We handle the paperwork.
Invoices and progress billing sent fast, job costs tracked, bills paid, and subcontractor 1099s handled — for one flat monthly price.
Built for: General contractors · Remodelers · Electricians · Plumbers · HVAC · Landscapers
The problem
The paperwork piles up in the truck.
- Invoices wait until the weekend, so you get paid weeks late.
- Supply house receipts get lost.
- You don’t know which jobs made money until it’s too late.
- 1099 season turns into a scramble.
How it works
Three steps. You only do the first one.
- 1
Send us your paperwork
Snap a photo of supply house receipts, forward estimates and change orders, or connect your bank.
- 2
We do the work
Invoicing and progress billing, job costing, bookkeeping, bills, and 1099s.
- 3
You get paid faster
And you get a simple monthly report showing which jobs make money.
What you get
Finished work, every month.
- Invoices and progress billing sent within 24 hours
- Unpaid invoices followed up until they’re paid
- Job costs tracked, so you know which jobs make money
- Supply house receipts matched to the right job automatically
- Books closed by the 10th of every month
- Bills paid on time
- Subcontractor 1099s handled at year-end
- Year-end package for your CPA
Pricing
Pricing that fits your business.
Pricing starts at $175/truck for trucking fleets. Every business is different—let’s talk about what works for yours.
Our promises
What you can count on.
Invoices out within 24 hours
Send us the job details and your invoice goes out within a day.
Books closed by the 10th
Last month’s books reconciled and closed by the 10th, every month.
Deadlines never missed
We track every filing date for your business and handle it ahead of time.
Why us
Built by a family that knows the paperwork.

Matthew Moniuszko started Monius Systems after running multiple businesses across different sectors and seeing a consistent problem: small business owners spend too much time on paperwork and back-office work that doesn’t move the needle. Invoices pile up, receipts get lost, compliance deadlines slip, and the owner ends up doing admin work instead of running the business.
We built Monius to be the back office partner that handles the work people hate, so owners can focus on what they actually built their business to do—whether that’s dispatching trucks, serving customers, or growing the team.
FAQ
Questions contractors ask.
Do I need to learn any software?
No. Send us your paperwork; we do the rest.
Can you track costs by job?
Yes. Receipts and bills are matched to the job they belong to, so you see what each job actually made.
Do you handle subcontractor 1099s?
Yes. We keep track of what you pay each sub through the year and handle their 1099s at year-end.
Do you do tax returns?
No. We keep clean books and give your CPA everything they need at year-end.
What if I already have a bookkeeper or software?
We can work alongside them or take over completely.
What’s the contract?
Month-to-month after your first 3 or 6 months.
Get your weekends back.
Book a CallSchedule a 15-minute call to discuss how Monius can handle your back office.
Book a call
Book a free 15‑minute call.
Tell us a little about your business. We’ll talk through what’s taking up your time, what we’d handle, and confirm your price. No pressure, no obligation.
- Fill out the form — it takes a minute.
- We reach out to pick a time that works for you.
- On the call, you get a clear plan and a firm monthly price.
Prefer to reach us directly?
(708) 253-8965 · moniussystems@outlook.com