Serving Chattanooga, TN and small businesses everywhere
423-607-2426·[email protected]
Sagan DIY Bookkeeping

Do your own books, with professionals behind you.

We set up your bookkeeping, connect your accounts, and keep you tax-ready all year. You stay in control day to day, for a flat monthly price. No surprise invoices, no catch-up panic in April.

Set up in minutesPros on your sideCancel anytime
Your books this monthTax-ready
▤
Bank feeds
Connected and syncing
✓
📊
Transactions
Auto-categorized
✓
★
Tax plan
Basic planning included
✓
Simple, flat pricing

Pick your plan

Start with bookkeeping, or bundle in your tax return and spread it across the year instead of one big bill.

Do it yourself

DIY Bookkeeping

$199/mo
Solo owners & single-member LLCs
  • We set up your books and software
  • Bank and card accounts connected for you
  • Automated transaction categorization
  • Monthly bookkeeping, kept current
  • Support when you have a question
  • Always tax-ready, no April scramble
Get started
BEST VALUE
Bookkeeping + Tax

Books & Tax Filing

$299/mo
Owners who want it all handled at filing time
  • Everything in DIY Bookkeeping
  • Your annual tax return prepared and filed
  • Basic year-round tax planning included
  • Your return fee spread across 12 months, not one lump sum
  • Stay a full year and the return is included
  • Reviewed before anything is filed
Get started

Included tax return covers a Form 1040 with one Schedule C and one state return. More complex situations (multiple owners, payroll, rentals, multi-state) are a quick conversation and a clear quote, never a surprise.

How it works

Up and running in three steps

1

Sign up and pick a plan

Answer a few quick questions and choose DIY Bookkeeping or Books & Tax. A few minutes, all online.

2

Connect your bank

We set up your books and send you a secure link to connect your accounts. You never hand us your banking password.

3

Stay tax-ready

Your transactions flow in and get categorized. You review, we keep you current, and your taxes are handled when the time comes.

Why DIY with Sagan

Self-serve, but never on your own

💰

One flat price

$199 or $299 a month. No hourly billing, no surprise invoices.

⏰

No April panic

Your books stay current all year, so tax time is a non-event.

🔒

Your data stays safe

Bank-level security, encrypted documents, and multi-factor sign-in.

❤

A real team behind you

Real professionals you can reach, not just software.

The cost of going it alone

Small gaps get expensive fast

These are the exact problems we exist to prevent. The numbers are real.

$1.2 trillion
in IRS penalties assessed in 2025
up to 47.5%
of your tax bill if you file and pay late
7%
penalty rate on taxes you should have paid quarterly
Sources: IRS (2025) and IRS Rev. Rul. 2024-25. Rates change over time; figures current as of 2025.
This really happens

One freelancer paid their entire tax bill in February and still owed about $2,800 in penalties, just for not paying in quarterly installments during the year. Paying in full was not enough.

This really happens

Online sellers have been blindsided by tax forms reporting "income" on things they sold at a loss, with no records to prove what they originally paid for them.

Paying in full is not enough

Skip quarterly payments and the IRS can add penalties even if you pay the whole bill later. We keep you ahead of every deadline.

The day you need a loan is the wrong day to start your books

In the Federal Reserve's 2024 survey, only 41% of businesses got all the financing they applied for. Clean monthly statements are how a lender says yes.

No tax form showed up? You still owe the tax

Online and freelance income counts from the first dollar, and self-employment tax alone is 15.3%. We track every dollar so nothing sneaks up on you.

Questions

Good to know

Is this really do-it-yourself?

You stay in control of your day-to-day books with tools we set up and maintain. We keep things accurate behind the scenes and are here when you have a question, so you are never stuck.

How does the $299 tax plan work?

Your annual tax return is included, and its cost is spread across your monthly payment instead of a single bill at filing. Stay enrolled through the year and the return is included. If you leave early, you get a credit toward the standard return price for each month you were with us.

What if my taxes are more complicated?

The DIY plans are built for straightforward small-business filings. If your situation is more involved, we will let you know up front and give you one clear quote. No surprises.

Can I cancel?

Yes, it is month to month. A few terms apply to the included tax return, which we spell out clearly in your agreement before you sign.

Ready for books that stay tax-ready?

Start your DIY plan in minutes, or talk to us first if you would rather.

Get StartedBook a Free Consult