Tax deduction finder for 1099 and LLC owners

Know what you can write off, and why.

Snap a receipt or type what you bought. WriteOff tells you in plain words if it's likely a write-off, how much counts, and where it goes on your taxes.

Federal income tax only. WriteOff explains how IRS rules apply to what you tell it. It isn't a tax preparer, and you decide what goes on your return.

Golf with a client Not a write-off

$0.00

Desk chair Likely a write-off

$489.00
WriteOff

Tax year

2026

Partly a write-off

80% of it counts

14-inch laptop · Lindgrove Computers · Sep 15

Your write-off

$1,941.28

of $2,426.60

80% business use20% personal · $485.32

Goes on

Schedule C

Line

27b

Type

Other expenses

Example answers · not your data

How it works

Three steps. One clear answer.

  1. Step 1: Scan a receipt or type it

    Take a photo of the receipt, or type what you bought and what it cost. You check what WriteOff read before anything is saved.

  2. Step 2: Answer a question, if one matters

    When one fact changes the answer, WriteOff asks one plain question. If you already said it, the answer is ready for you to confirm with one tap. "Not sure yet" is always there.

  3. Step 3: Get a clear answer

    Yes, partly or no, in words and a symbol. How much counts, why, the IRS source, where it goes on your tax form, and the records to keep.

The answer

Every answer shows its work.

The same laptop, below the pass: why it counts, the source you can open, the math, the line on your tax form, and what to keep.

Why

You use it for work about 80% of the time, so 80% of the cost counts. It cost under $2,500, so you can deduct your share this year instead of spreading it over several years.

How we got this

Price
$2,426.60
Business use
80%
Your write-off
$1,941.28

De minimis safe harbor

Under $2,500 per item, so you can deduct your 80% this year instead of spreading it over several years.

Where it goes

Schedule C · Part II Expenses

27aEnergy efficient buildings
27bOther expenses$1,941.28
28Total expenses

List it in Part V, Other expenses.

Keep this

  • Receipt

    Saved with this check

    Done
  • Business use note

    How you use it for work

    To add

Example answer · General information, not tax advice.

The verdicts

Six plain answers. No spin.

Every answer is one of these, always with a symbol and words, never color alone. When something isn't a write-off, WriteOff says so and tells you why.

  • Likely a write-off

    It counts for what you told us.

  • Partly a write-off

    Part of it counts, like 80% of a laptop you also use at home. You can see the math.

  • Needs an answer

    One fact decides it, so WriteOff asks one plain question first.

  • A write-off, spread over years

    Things that last, like equipment, are often written off over several years.

  • Not a write-off

    WriteOff says why, and what would change the answer.

  • Ask a tax pro

    When the rules don't settle it, WriteOff says so instead of guessing.

Rules first, AI second

The rules decide. AI only helps.

WriteOff's tax rules, built from IRS publications and regulations, decide every answer and every amount. AI helps read and suggest. It can't change the answer or the numbers.

The rules decide

  • If it's a write-off
  • How much counts
  • Why, with the IRS source
  • Where it goes and what to keep

AI only helps

  • Reads your receipt photo
  • Reads what you type
  • Suggests answers you already gave
  • You confirm every suggestion

Nothing goes to AI until you say yes. Turn AI help off any time in Settings > Privacy and enter expenses yourself. The rules give the same answer either way.

Privacy

Your receipts stay yours.

WriteOff needs your expenses to answer. It doesn't need your bank login, your contacts or your location.

Read the privacy policy

  • No bank link. You check one expense at a time.
  • You choose whether AI helps. WriteOff asks before anything is sent, and you can turn it off in Settings > Privacy.
  • With AI help on, receipt images go to Anthropic's Claude API to be read, and text (what you type and the text on a receipt) goes to TypeSafe's jev model for suggestions you confirm. Anthropic doesn't use it to train its models.
  • Receipts are kept in private storage and opened only through short-lived links.
  • No ads, no tracking, and we don't sell your data.
  • Delete your account and its data from the app at any time.
  • This website sets no cookies and runs no analytics.

Know what your business can write off.

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