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Personal and business money, one set of books

Your whole financial life,
with the tax done properly.

Every account in one net worth. Every business dollar on the right return, and a package your accountant can open without an account.

A free week, no card. Then from $5 a month.

  • One ledger, two books
  • The return done properly
  • Not a bank; read-only
Contha open on a laptop and a phone: net worth across a year, split
                   into personal and business, with what needs attention

Shown with demo figures, not a customer’s.

Built for independent minds

  • Freelancers
  • Solopreneurs
  • Creators
  • Consultants
  • Small Business Owners

The problem

Every self-employed review of a finance app ends the same way.

Personal money in one app, business books in another, and in March a spreadsheet for the tax people.

A finance app
Bookkeeping
A spreadsheet
One place, insteadevery number, together

Five things

Everything it does sits under one of these.

The books

One ledger, two books.

Every account in one net worth. Every row personal, business, or both. Nothing filed on the wrong side.

  • Every account, one net worth
  • Personal, business, or both
  • Every row, categorized
  • Where it went
Learn more

Net worth

$43,516

+$25,889 this year
Personal$27,597
Business$15,918
One charge split between the two, once.

The tax

The number, and whether the money is there.

Not a worksheet. Self-employment tax, your state where it is modelled and the rate you type where it is not, your withholding, the four payments as a schedule, and the reserve judged against a real account.

  • The estimate that knows your job
  • Four payments, with amounts
  • Is the tax money there
  • What can move to personal today
Learn more
Q1
Q2
Q3Q3
Q4Q4

Q3 Sep 15

$3,075.84

5 days

Reserve

Covered

Safe to draw

$7,036.85

For owners

An LLC is not a tax status.

For S-corps, partnerships, multi-member LLCs and rentals. Each lands on a different return, and Contha has the model: wrapper and treatment as two axes, and your share before the K-1 exists. A sole proprietor can skip this one; Solo covers it.

  • Wrapper and treatment, two axes
  • Nothing on the wrong return
  • Your share, before the K-1
  • Basis, and reasonable compensation described
Learn more
Multi-member LLCtaxed as an S corporation60% yours

Ordinary income to you

$3,107

W-2 wages

$24,000

Subject to SE tax

$0

Over basis

$22,893

Nothing on a Schedule C. Nothing charged self-employment tax.

For your accountant

Handed over whole.

Five plain files in the layout a practice imports, and a read-only link that needs no account and stops on its own.

  • The five files
  • A door, not a seat
  • Printable
  • An MCP for practices
Learn more
  • Every transactioncsvfirst of five
  • Schedule C worksheetcsv
  • Mileage logcsv
  • Entities and K-1 positioncsv
  • Contractors and 1099scsv

Read-only link

No account. Expires on its own.

45 days

Recommendations

What a better card would have paid you.

Cards and deposit accounts ranked against your real spending, not a category average. Computed, and the computation is shown.

  • Ranked against what you actually spent
  • Cash earning less than it could
  • Business and personal ranked apart
  • Terms with a date on them
Learn more

Best card for this year’s business spend

+$864

more than your card earned, no annual fee

  • Software$412
  • Advertising$284
  • Travel$168

Ranked on your rows, not a category average.

Not a bank

Contha reads the accounts and holds none of the money.

Nothing here can freeze, hold, close or move an account. If a feed stops, the account is untouched, and every figure it touches says so, in words, until it is back.

Reads

  • Balances
  • Transactions
  • Holdings

Cannot

  • Move money
  • Freeze an account
  • Close an account
If a feed stops, the account is untouched and the page says so.

Get started

Connect one account. The rest is arithmetic on your own rows.

Or start from a CSV. Two months of history and the estimate, the schedule and the reserve fill in.