For small-firm bookkeepers & accountants

Stop hand-categorizing bank statements. Upload the CSV — download the workpapers.

MPAX turns raw bank and card exports into clean, categorized reconciliation workbooks for month-end and tax work. Any bank, any CSV layout — map the columns once per client, and every upload after that flows straight through to a finished Excel file.

Unlimited clients · Cancel anytime · No trial hoops — one month is your only risk
recon.mpaxdata.com
MPAX Reconciliation
34
Transactions
3
Uncategorized
$8,214
Net
PAID
Stage 2: Categorize · Riverside Salon LLC · 34 transactions · Jun 1 → Jun 30 Generate Workbook →
DateDescriptionAmountCategory
06/01SQUARE INC DEPOSIT+$3,200.00Income - Services ▾
06/03SALLY BEAUTY SUPPLY−$142.50Supplies ▾
06/05ZELLE J MARTINEZ−$800.00Contract Labor ▾
06/08AT&T WIRELESS−$89.00Utilities ▾
06/10VNDR 4417 NEW−$45.00Uncategorized ▾
06/12WESTGATE PLAZA−$1,800.00Rent ▾
Every row has a category dropdown. Change it — the mapping saves instantly for this client, forever.
Any bank
Column-mapper reads every CSV layout
Map once
Saved per client, reused automatically
12 tabs
A complete workpaper set in one file
Unlimited
Client profiles under one firm account

Month-end shouldn't mean an evening of copy-paste and guesswork.

Every bank exports a different CSV, so most firms re-do the same cleanup by hand, every client, every month. MPAX replaces that with a mapper you configure once: the engine normalizes the data, applies your saved vendor categories, flags what's new, and builds the workbook — the same deterministic result every time.

The Portal

Not a spreadsheet chore. A pipeline you run.

Client selector in the sidebar, your data in the middle, one gold button to the finished file.

🗂️

Works with any bank

No bank list to wait on and no hard-coded formats. Upload any CSV, point at the Date, Description, and Amount (or Debit/Credit) columns, and the engine normalizes the rest — signs, currency symbols, preamble rows included.

🔁

Map once per client

Column mappings are saved per client and keyed to the file's header layout. The next statement with the same shape maps itself — you just confirm and go.

🏷️

Vendor memory

Categorize a vendor once and it stays categorized — per client, with custom categories for industry-specific work. Each month, only genuinely new vendors need a decision.

👥

Multi-client, one login

One firm account, unlimited client profiles — each with its own mappings, categories, and upload history. Switch between clients from the sidebar.

🧮

Deterministic engine

Duplicate transactions across bank + card files are removed, statement summary rows filtered, and multi-year data flagged. Same input, same output — no AI guesswork anywhere in your numbers.

🧾

Compliance built in

Every workbook carries a Data Handling Receipt documenting the files received and how they were processed, plus a tamper-evident, hash-chained Audit Log tab.

In Every Workbook

The whole workpaper set — not just a ledger.

Reconciliation — the full categorized transaction ledger
Schedule C — income & expenses on IRS categories
1099-NEC Prep — contractor payments, ready to file
Estimated Tax Tracker — quarterly view from net profit
Monthly Summary — income & expense by month
Duplicate Payment Detector — likely double-pays flagged
Round Number Flags — suspicious amounts surfaced
Unclaimed Deduction Finder — likely-deductible misses
Sales Tax Detection — sales/state/use-tax patterns
Audit Log — tamper-evident hash-chained trail
Cover Sheet — what's included, at a glance
Data Handling Receipt — compliance record of every file
How It Works

Upload, categorize, download.

1

Map your files

Drop bank and card CSVs. Tell the engine which column is Date, Description, and Amount. It saves the layout — next month, the same file maps itself.

2

Categorize vendors

One table, every transaction. Pick a category from the dropdown — it saves instantly and applies to every matching vendor. Bulk-select for speed.

3

Generate the workbook

One click builds the full 12-tab Excel file — ledger, Schedule C, 1099-NEC, estimated tax, anomaly flags, and compliance receipts.

Pricing

One plan. Every feature. No tiers to decode.

Firm Account
$39.95/month
Built for solo practitioners and small bookkeeping firms.
  • Unlimited client profiles
  • Works with any bank via the column-mapper
  • Saved per-client mappings & vendor categories
  • All 12 workbook tabs, every time
  • Data Handling Receipt & hash-chained Audit Log
  • Cancel anytime from the billing portal
Create your firm account

No trial hoops — your only risk is one month at $39.95. Cancel anytime.

Your next month-end could be an upload, a glance, and a download.

Join the firms that stopped re-keying bank statements. Map each client once, and let the engine do the rest — deterministically, with the receipts to prove it.