Nalepa Labs · TransactionFlow
Schedule C
drafted from your books — instantly
FORM 1040 · LINE-BY-LINE · IRS-ALIGNED
EVERY APRIL
Your books
don't speak
IRS.
A P&L has 30+ expense categories. Schedule C wants exactly 23 numbered lines — Advertising on line 8, Office Expense on line 18, Supplies on line 22. Mapping that yourself is hours of cross-referencing.
YOUR P&L · 2026
Software & Tools$4,250
Marketing$3,800
Office Supplies$2,100
Pro Services$1,890
Vehicle Fuel$1,420
Internet/Phone$1,180
Travel/Lodging$2,640
Meals (50%)$ 740
⋯ 22 more rows
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SCHEDULE C · PART II
8 Advertising_______
9 Car & truck_______
17 Legal & prof._______
18 Office_______
22 Supplies_______
24a Travel_______
24b Meals (50%)_______
25 Utilities_______
⋯ lines 8 – 27a
0
HOURS, AT TAX TIME
manually mapping P&L → IRS lines
HOW IT WORKS
Each category is pre-mapped to its IRS line.
YOUR LEDGER
Marketing→ Line 8$3,800
Vehicle Fuel→ Line 9$1,420
Pro Services→ Line 17$1,890
Office Supplies→ Line 18$2,100
Software & Tools→ Line 22$4,250
Travel/Lodging→ Line 24a$2,640
Meals (50%)→ Line 24b$740
Internet/Phone→ Line 25$1,180
SCHEDULE C · PART II — EXPENSES
8 Advertising—
9 Car & truck—
17 Legal & prof. svc.—
18 Office expense—
22 Supplies—
24a Travel—
24b Meals (50%)—
25 Utilities—
28 TOTAL EXPENSES $0
YOUR DRAFT · READY
A complete
Schedule C —
in seconds.
Header (Lines A–J), Part I (revenue), Part II (expenses), Part III (COGS), Part IV (vehicle), Part V (other) — populated from your ledger, ready for Form 1040.
✓
ENTITY CHECK · PASSED
Sole Proprietor — Schedule C is the right form
Gross receipts (Line 1)
$47,250
Total expenses (Line 28)
$18,340
Home office (Line 30)
$1,500
Net profit (Line 31)
$28,910
SCHEDULE C
(Form 1040)
Department of the Treasury
Internal Revenue Service
Profit or Loss From Business
(Sole Proprietorship)
Go to www.irs.gov/ScheduleC for instructions and the latest information.
Attach to Form 1040, 1040-SR, 1040-SS, or 1041; partnerships, generally must file Form 1065.
OMB No. 1545-0074
2026
Attachment
Sequence No. 09
Name of proprietor
Marcus Chen
Social security number (SSN)
•••–••–4291
A Principal business or profession, including product or service
B Enter code from instructions
D Employer ID (EIN)
Specialty machining services
3 3 2 7 0 0
82-3194827
C Business name. If no separate business name, leave blank.
Chen Precision Works
E Business address (including suite or room no.)
2418 Industrial Pkwy, Ste 14 · Oakland, CA 94607
F Accounting method: (1) Cash (2) Accrual (3) Other (specify)
G Did you "materially participate" in the operation of this business during 2026? If "No," see instructions for limit on losses.
YesNo
H If you started or acquired this business during 2026, check here
I Did you make any payments in 2026 that would require you to file Form(s) 1099? See instructions.
YesNo
J If "Yes," did you or will you file required Form(s) 1099?
YesNo
Part I Income
1 Gross receipts or sales. See instructions for line 1 and check the box if this income was reported to you on Form W-2 and the "Statutory employee" box on that form was checked 47,250
2 Returns and allowances 0
3 Subtract line 2 from line 1 47,250
4 Cost of goods sold (from line 42) 0
5 Gross profit. Subtract line 4 from line 3 47,250
6 Other income, including federal and state gasoline or fuel tax credit or refund (see instructions) 0
7 Gross income. Add lines 5 and 6 47,250
Part II Expenses. Enter expenses for business use of your home only on line 30.
8Advertising3,800
9Car and truck expenses (see instructions)1,420
10Commissions and fees0
11Contract labor (see instructions)0
12Depletion0
13Depreciation and section 179 expense deduction (not included in Part III)0
14Employee benefit programs (other than on line 19)0
15Insurance (other than health)0
16 Interest (see instructions):  
aMortgage (paid to banks, etc.)0
bOther0
17Legal and professional services1,890
18Office expense (see instructions)2,100
19Pension and profit-sharing plans0
20Rent or lease (see instructions): 
aVehicles, machinery, and equipment0
bOther business property0
21Repairs and maintenance0
22Supplies (not included in Part III)4,250
23Taxes and licenses0
24Travel and meals: 
aTravel2,640
bDeductible meals (see instructions)740
25Utilities1,180
26Wages (less employment credits)0
27Other expenses (from line 48): 
aTotal other expenses (from line 48)320
bEnergy efficient commercial buildings deduction (attach Form 7205)0
28 Total expenses before expenses for business use of home. Add lines 8 through 27b 18,340
29 Tentative profit or (loss). Subtract line 28 from line 7 28,910
30 Expenses for business use of your home. Do not report these expenses elsewhere. Attach Form 8829 unless using the simplified method. Simplified method · 200 sq ft × $5 1,500
31 Net profit or (loss). Subtract line 30 from line 29.
If a profit, enter on both Schedule 1 (Form 1040), line 3 and on Schedule SE, line 2. 27,410
32 If you have a loss, check the box that describes your investment in this activity (see instructions). 32a All investment is at risk 32b Some not at risk
For Paperwork Reduction Act Notice, see the separate instructions. Cat. No. 11334P Schedule C (Form 1040) 2026
DRAFT · READY
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