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“It's fine until tax season, then it's a scramble”: the first year as a sole proprietor, and the January 1 reset

September 11, 2026 · 8 min read

Almost nobody picks a bookkeeping system when they start a business. We read a year of r/smallbusiness and r/tax posts from new sole proprietors and counted: of 64 people deciding what to do about their books, 2 did it at formation. 14 did it in their first tax season. The rest were spread across the year, mostly after something went wrong.

So this is the honest timeline of year one, where it breaks, and the reset that fixes it. If you are reading this in December, you are early. If it is February, you are on time.

Month 0 to 1: the LLC, the EIN, the bank account

You register, get an EIN, open a business checking account because the bank or the SBA checklist said so. Bookkeeping is on the list, unchosen. Nothing is wrong yet. You have no transactions.

Month 1 to 3: the first invoice and the first receipt

Someone pays you. You buy a laptop, a domain, some supplies. Receipts go into a photo roll or an email folder. The spreadsheet gets created and, usually, abandoned after the second month. This is where the phrase "an app I can scan receipts with" first gets typed into Google.

Month 3 to 5: the quarterly-tax discovery

A friend, a forum or a letter tells you that self-employed people pay taxes four times a year. You have already missed April 15. Cue the r/tax post. The whole quarterly system is here; the short version is: pay it now, the penalty is interest-like, and set aside 25% to 30% of net profit going forward. Net profit is the catch. You do not know it, because the receipts are in the photo roll.

Month 6 to 12: the monthly grind

This is where the honest posts come from: "hunting down receipts in my email", "Excel at 11pm on the last day of the month", "even with software I am still manually categorising everything". The books are not wrong yet. They are just behind, and behind compounds.

Month 12: the January 1 reset

The one date that keeps showing up in the posts is January 1. "A good time to start new bookkeeping software." It is, because the new year is a clean ledger and the old year is about to be judged. Two things are due in January that force the issue: the fourth estimated payment on January 15 and the 1099-NEC forms, which anyone who paid you as a contractor must send by January 31.

Month 13 to 16: the first tax season

February is the busiest month in the whole sample. Twelve months of bank statements, a phone of receipts, and a preparer who wants "everything". Three things happen to first-year sole proprietors here, and they are the three most common posts:

The reset: three habits, five minutes

The fix for all of the above is the same and it is boring. Do it in December so year two starts clean, or do it today if it is already February; either way it takes an evening to set up and five minutes a week to keep.

  1. One business account, no exceptions. Every business expense from it, every personal expense not from it. This alone halves the cleanup.
  2. Capture on the day. The receipt goes in when you get it, not at month end. From your phone, in the moment, with the category set then. ClaryBook does this over a chat: text "$48 Home Depot, supplies" or send the photo, and it is filed under the right Schedule C line with the receipt attached.
  3. Five minutes on Sunday. Look at the week. Anything uncategorised gets categorised. Anything missing a receipt gets one. That is the entire habit; the full weekly system is here.

Do those three and tax season stops being a season. It becomes a download in February and a normal conversation with a preparer who is happy to keep you.

Books that are current all year, from your phone

Text a receipt or type what you spent. ClaryBook files it under the right Schedule C line, keeps a running quarterly estimate, and hands your accountant a tax package with every receipt attached. $30 a month, 30 days free, no card.

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The mistakes we see most in year one

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