Bookkeeping for Sole Proprietors
Bookkeeping for Sole Proprietors
Schedule C, EIN or SSN, quarterly estimated tax. The basics done right, every quarter.
- AIPB Certified
- QuickBooks ProAdvisor
- Xero Partner
- US-based team
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Running a business by yourself means every job is your job, including the one you didn't sign up for: bookkeeping. Most sole proprietors we meet aren't behind because they're careless. They're behind because there's one of them and eighteen things competing for a Tuesday afternoon, and the books lose that fight every time.
We work with freelance designers, independent consultants, personal trainers, virtual assistants, Etsy sellers running the whole show solo, and plenty of people whose business card still lists a day job they haven't quit yet. What we see across all of it is the same handful of questions: EIN or Social Security number on the invoice, how much to set aside for taxes, whether that home office actually counts.
Once we're running your books, those questions get answered once and stay answered. Schedule C categories are handled correctly from month one. Quarterly estimated tax is a number you already know is coming, not a surprise that shows up with your name on it in April.
Where sole proprietors bookkeeping actually helps
- I don't know if I should put my EIN or my Social Security number on invoicesWe help you get a free EIN if you don't have one and set it up consistently across your invoicing and 1099 paperwork. Your SSN stays off client-facing documents, even though the IRS still taxes you the same way, as a sole proprietor reporting on Schedule C.
- I get to April and find out I underpaid my quarterly estimated tax all yearQuarterly estimated tax is calculated from your actual year-to-date numbers, not a guess carried over from last year. You get the 1040-ES voucher amount before each deadline, not after.
- I use one card for everything, personal and businessWe separate business activity out of a shared account without asking you to open three new accounts you don't need yet. Categorization stays accurate either way.
- I have no idea what counts as a home office deductionWe track the square footage and expenses that support either the simplified or actual method, whichever nets you more, and keep the documentation in a form that holds up.
- Self-employment tax always feels like it comes out of nowhereSelf-employment tax is built into every quarterly estimate from the start, so the number you're setting aside already accounts for it. No April gut punch.
What's different about sole proprietors bookkeeping
- Schedule C categorization mapped to the actual IRS line items, not a generic chart of accounts
- EIN or SSN handled once and used consistently across invoices and contractor paperwork
- Quarterly estimated tax calculated from real income, with 1040-ES vouchers ready ahead of each deadline
- Self-employment tax factored into every quarterly set-aside, not left for April to discover
- Home office deduction tracked and documented, simplified or actual method
- Vehicle mileage log support for the business miles that actually count
What a one-person business actually needs from a bookkeeper
A sole proprietorship doesn't need a finance department. It needs someone paying attention to the handful of things that decide whether tax season is calm or ugly: clean Schedule C categories, an accurate estimate of what you owe each quarter, and a record of the deductions you're actually entitled to. Most generalist bookkeepers either overbuild this, pricing it like a small company with a payroll department, or underbuild it, treating a Schedule C business like an afterthought squeezed in between bigger clients.
We size the work to match a one-person business, so you're not paying for reports and calls you'll never use. The categorization still needs to be right, because a sole proprietorship on the wrong chart of accounts is exactly what turns a simple return into a slow, expensive one. Getting an EIN, if you haven't already, doesn't change your tax status, since a sole proprietor's business income still flows through to your personal return on Schedule C, but it keeps your Social Security number off invoices and W-9s you hand to clients.
The result, month to month, is a business owner who knows roughly what they owe before the quarterly deadline lands, has a mileage log and home office record that would survive a second look, and isn't finding out about self-employment tax for the first time at tax filing.
"I'm a one-person business, didn't think I needed a bookkeeper. After I underpaid my quarterly estimated tax by accident and got hit with a penalty, I changed my mind. The package they put me on is genuinely affordable for a sole proprietor and they catch stuff before it becomes a problem."
What's included
- Bank and card reconciliation, including shared personal-business accounts
- Schedule C categorization mapped to the correct IRS lines
- Quarterly estimated tax calculations with 1040-ES figures ready before each deadline
- Home office deduction documentation, simplified or actual expense method
- Vehicle mileage log support, standard mileage rate or actual expense method
- Self-employment tax factored into your quarterly set-aside
- Monthly profit and loss in plain English, no jargon
- Year-end handover to your CPA or EA
Why sole proprietors pick us
Sized for one person
No department-sized retainer for a department-sized business. The plan matches a solo operation, not a scaled-down version of something built for a team.
Quarterly tax, calculated not guessed
Your estimated tax number comes from your actual income that quarter, self-employment tax included, ready before the 1040-ES deadline.
Home office done properly
Square footage and expenses documented under whichever method nets you more, kept in a form that holds up if anyone ever looks twice.
Mileage log that holds up
Trips logged consistently enough that the deduction is real and defensible, not reconstructed from memory in March.
EIN and SSN sorted once
We help you get an EIN if you need one and keep it consistent across invoices and 1099 paperwork, so your SSN stays off client-facing documents.
Schedule C, categorized right
Every expense lands on the line the IRS actually expects, which is what keeps your CPA's job quick and your return clean.
Get the quarterly guesswork out of your business
Tell us how the business is set up and how income comes in. We'll quote a plan sized for one person, in writing, the same business day.
Three solo shapes
Left the day job, income is finally consistent
First full year filing as a sole proprietor. Income is steadier than the freelance-on-the-side years but the quarterly estimated tax habit hasn't been built yet. Wants the basics locked in before the first full tax year closes.
What changes
- Schedule C set up correctly from month one
- Quarterly estimated tax calculated each period
- EIN obtained and used on invoices
- Simple monthly P&L to track the ramp
How sole proprietor books usually get handled
Spreadsheet (evenings) Most common starting point | General bookkeeper Not specialized to Schedule C | Sole proprietor plan (us) Sized and specialized | |
|---|---|---|---|
Schedule C categorized correctly | Partial | Partial | Yes |
Quarterly estimated tax calculated, not guessed | No | Partial | Yes |
EIN or SSN used consistently | No | Partial | Yes |
Home office deduction documented | No | Partial | Yes |
Mileage log maintained | No | No | Yes |
Reviewed by an AIPB-certified bookkeeper | No | Partial | Yes |
Evenings back | No | Partial | Yes |
How we price sole proprietors bookkeeping
Pricing for a sole proprietor plan comes down to transaction volume, how many income streams feed the business, and whether you want mileage and home office tracking included. Most solo operations land on our lightest tier, because the work, while precise, doesn't carry the volume a business with staff and payroll does.
Fill out the quote form and describe roughly how the business runs. You'll get a written number back, usually within one business day, sized to a one-person operation rather than padded for a bigger one.
What clients say
"I'm a one-person business, didn't think I needed a bookkeeper. After I underpaid my quarterly estimated tax by accident and got hit with a penalty, I changed my mind. The package they put me on is genuinely affordable for a sole proprietor and they catch stuff before it becomes a problem."
"Wedding deposits, equipment depreciation, travel. The sole proprietor package they put me on is right-sized for a one-person business. The reports come in monthly and I actually open them now, which I never used to."
Sole Proprietors bookkeeping FAQ
Two things to remember
Every account is reconciled and kept tax-ready by an AIPB-certified bookkeeper. Every account is run inside the US. Those two anchors shape how we handle compliance for sole proprietors specifically.
Services we provide
Service
Bookkeeping for Small Business
Visibility-first. Re-scoped as you grow. Reports owners actually read.
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Outsourced Bookkeeping
Full delegation, compliance-heavy. Contractors, hospitality, construction, allied health. AIPB certified.
Service
Quarterly Tax-Ready Bookkeeping
Books reconciled ahead of every quarterly deadline. AIPB certified.
One less thing to think about.
Tell us how the business is set up. We'll quote a plan sized for one person, the same business day.