Clean, current books every month — without hiring in-house.
Built for owners of trade businesses, independent retail shops, and local service companies. We handle the categorizations, reconciliations, and monthly financial closes so you always know where your cash stands.
The three problems that bring owners to us
Books months behind
You intended to catch up on QuickBooks over the weekend, but jobs ran late and estimates took priority. Now it's four months back.
Scrambling at tax time
March arrives and your CPA asks for clean balance sheets, but you only have bank export CSVs, shoebox receipts, and unclassified deposits.
No idea what the month actually made
Revenue looks strong in the checking account, but after materials, vendor invoices, and fuel, you don't know your true net margin.
What arrives in your inbox on the 10th of every month
Real financial reports you can actually read. Not raw data exports.
Income Statement (P&L Excerpt)
Accrual Basis · USD| Account Category | Amount | % Rev |
|---|---|---|
| Gross Service Revenue | $78,420.00 | 100.0% |
| Cost of Goods & Direct Labor | ($42,150.00) | 53.8% |
| Gross Profit Margin | $36,270.00 | 46.2% |
| Operating Expenses | ||
| Payroll (Shop & Dispatch) | $9,840.00 | 12.5% |
| Shop Supplies & Small Equipment | $2,410.00 | 3.1% |
| Vehicle Fleet Fuel & Maintenance | $3,120.00 | 4.0% |
| Commercial Liability Insurance | $1,850.00 | 2.4% |
| Software & Communications | $840.00 | 1.1% |
| Net Operating Income | $18,210.00 | 23.2% |
Balance Sheet Snapshot
As of Oct 31Monthly Cash Flow Summary
Reconciled Bank AccountsSee exactly what stayed in the company after all job costs. No guessing whether the top-line cash is actually profit.
Know how much cash can safely be taken or reinvested without risking payroll, insurance payments, or supplier terms.
Every dollar accounted for against a verified vendor receipt or invoice. No mystery "Ask Accountant" dumps at tax time.
From first call to your first monthly close in four steps
20-Minute Fit Call
We review your accounting software, current backlog, and monthly transaction count.
Read-Only Access
You connect your bank feeds and software via secure, read-only permissions.
Historical Catch-Up
We clean up past months, reconcile all bank accounts, and establish your chart of accounts.
Predictable Monthly Close
By the 10th of each month, your reconciled financial package is delivered.
The On-Time, Tax-Ready Guarantee
If your monthly books are not fully reconciled and delivered to your inbox by the 10th business day of the month, that month's service is free. When tax season arrives, we deliver full tax-ready workpapers directly to your CPA at zero extra charge.
Who is doing your books
I'm Patrick Dineen, and I've spent my career around small business finances.
I've run an agency serving over a hundred small businesses, worked in mergers and acquisitions, and supported investment funds and financial advisors. In the M&A work, I watched a pattern repeat: owners built something real, then lost money at the closing table because nobody had kept the books straight for the last five years.
Lagrange Bookkeeping exists so that never happens to you.
Get your books in order this month.
A 20-minute call to review your accounts, establish your flat monthly rate, and hand off your reconciliations for good.