TaxmarkMiraflores AI

Version v3, none of our changes applied yetStage Review

Viewing as

Actions are recorded as the role you choose. There is no sign-in in this demo, so pick the person whose view you want.

Story time 23 Jun 2026, 06:05 UTC

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About this workspace

Demo

Taxmark is a web-native workpaper for one household's 2025 return: click any number to see the page and field it came from, the rule that built it, who checked it and what is still open.

74 documents3,012 values read from them3 computed versions627 lines on v329 events in the timeline

Try: open Checks as Daniel, click California estimates, then switch role in “Viewing as” to see what each person may see and do.

The roles · 10

Priya Raman, preparer Marcus Bell, preparer · no sensitive-data clearance Daniel Ortiz, reviewer Helen Strand, partner Sam Adeyemi, quality reviewer · joins 4 Jan 2027 Jo Kimura, firm administrator Ngozi Okafor, client, taxpayer · client view Erik Lindqvist, client, spouse · client view Priya Raman (preparer, next year's return) · joins 15 Jan 2027 IRS examiner · read only, items under examination · joins 20 Jan 2028

Every action is saved as an event in this workspace (/w/gwxn6k5xxe); open the root link again for a clean copy. Anything not in the packet is tagged Example.

Legends

Blockingstops filing
Check failedour check disagrees
Judgmentneeds a recorded decision
Engine warningfrom the engine only
Notea finding for information; nothing to act on
No open checksnothing open on this line
Adjustedchanged in this workspace
Proposedan adjustment waiting for a reviewer to apply it
Swingmoved past the firm’s variance rule from last year
New this yearno amount last year
Signeda sign-off covers this value
Stalethe value changed after it was signed
As filed, lockedaccepted by the agency; later work attaches on top
Examplenot in the packet: an illustration

Pills on Checks

Blockeran open item that stops partner approval: a problem our check found, or a line waiting for the engine to re-run
Opena blocker still open when the return was signed or filed
Checkour check disagrees; it does not stop approval
Judgmentour check needs a recorded decision
Infoour check notes it; nothing to act on
AIthe AI agent flagged this item; a person accepts or dismisses each suggestion
Needs reviewan AI suggestion no one has decided yet (Accepted once someone has)
Engine warningthe engine’s own warning names this item, quoted as it wrote it; not one of our checks
Confident mistakeflagged by our checks, though every value behind it was read at 0.95 or above. The checks were built from the mistakes our external investigation found.
Clearedclosed with a reason, or by an adjustment (Adjusted)
Signed offa sign-off covers this finding

Deadlines on the story clock

15 Apr 2026Federal Form 1040 and California 540NR - original due datePassed 70 days ago

15 Oct 2026Extended due date (federal and California)In 113 days

27 Mar 2026Internal: preparer hand-off to reviewPassed 89 days ago

08 Apr 2026Internal: review completePassed 77 days ago

15 Oct 2026FinCEN 114 (FBAR) automatic extended due date (outside engagement)In 113 days

02 Feb 2026Forms 1099-NEC for 2025 contractor payments (late; outside engagement)Passed 142 days ago

Firm standards

A starting point. Applicants may change, extend or replace these through the firm administrator role.

Rules (7)

“A person may not review or sign off on work they prepared.”Review: sign-off disabled on your own adjustment

“Any adjustment with a tax effect over 1,000 (federal or state) requires partner sign-off.”Review: partner items; approval waits for them

“Every judgment call records the authority relied on.”Drawer: decisions record their authority

“Due diligence must be documented for the child tax credit, credit for other dependents, American opportunity credit, earned income credit and head of household status.”Drawer: due diligence decisions

“Open review notes block filing.”Review: blocking notes stop approval

“Staff without sensitive-data clearance see SSNs, bank and account numbers and IP PINs masked; every unmasked view is logged.”Everywhere: last 4 only; reveals logged on Review, View log

“Records are retained 7 years after filing, then destroyed.”Filing: the as-filed record is locked, not deleted

The 12 required steps

Engagement letter and consents signed
Identity verified
Prior-year return reviewed
All documents accounted for
Prior-year variances explained
Carryovers agreed to prior year
Estimated payments agreed to IRS and FTB records
Due diligence completed
Diagnostics resolved
Reviewer sign-off
Partner sign-off
Client approval and e-file authorization

Verification types

Agreed to source document
Recalculated
Confirmed with client
Agreed to prior year
Agreed to third party record

Review levelsPreparer, Reviewer, Partner

Variance reviewCompare to Prior year; flag when the change is over 10% and over 1,000.

People and clearance

Name	Role	Credential	Sensitive data	Active from	Note
Priya Raman	Preparer		Cleared	01 Aug 2025
Daniel Ortiz	Reviewer	CPA	Cleared	04 Jan 2021
Helen Strand	Partner	CPA	Cleared	01 May 2018
Marcus Bell	Preparer		No clearance	24 Mar 2026	Background check pending; no access to full SSNs or bank numbers.
Jo Kimura	Firm administrator		Cleared	10 Feb 2020
Sam Adeyemi	Quality reviewer	CPA	Cleared	04 Jan 2027 Later
Ngozi Okafor	Client		Own items only
Erik Lindqvist	Client		Own items only

Assignment at the start: Preparer Priya Raman · Reviewer Daniel Ortiz · Partner Helen Strand

Time against budget

Area	Budget (h)	Logged (h)	Left (h)	Status
Intake and engagement	1.5	0	1.5	None logged
Wages and stock compensation	3	0	3	None logged
Investments and digital assets	4	0	4	None logged
Business	3.5	0	3.5	None logged
Rentals and sale	3.5	0	3.5	None logged
Pass throughs and basis	2	0	2	None logged
Deductions and credits	2	0	2	None logged
California	1.5	0	1.5	None logged
Partner review	1	0	1	None logged
Total	22	0	22

Budget from the packet. Logged time is what people record in this workspace; the packet has no time records.

How AI was used

The mistakes our checks catch were found during an AI-assisted review of the packet and are now caught by deterministic checks.

An AI agent investigated the whole packet with the app’s own tools, identifiers masked, and suggested issues with quotes. Its suggestions appear only on the final computed version, after each quote is found on its page, and a person accepts or dismisses each one.

Return overview

Adjusted gross income445,590v3, as computed Federal tax81,962v3, as computed California tax18,874v3, as computed

FederalNot sent

CaliforniaNot sent

ExtensionFiled 14 Apr 2026 with 36,000, estimated from v2

What-ifs from the engine

Not a change; nothing is saved to the returnComputed on v3

Studio equipment (38,000): elect section 179 instead of 100% special depreciation. Fed 0 · CA -1,050

Section 179 expense deduction F4562-C.12
Special depreciation allowance (100%) F4562-C.14
Business income (Schedule C) - CA additions SchCA540NR.12.C
Business income (Schedule C) - total using CA law SchCA540NR.12.D
Business income (Schedule C) - California amount SchCA540NR.12.E
Total income using CA law SchCA540NR.22.D
Total California income SchCA540NR.22.E
Total AGI using California law F540NR.17
Total taxable income F540NR.19
Tax on total taxable income F540NR.31
California AGI F540NR.32
Deduction percentage (line 32 / line 17) F540NR.34
California taxable income F540NR.35
CA tax rate (line 31 / line 19) F540NR.36
California tax before exemption credits F540NR.37
Prorated exemption credits F540NR.39
Regular tax F540NR.40
Total tax F540NR.64
Overpaid tax F540NR.97
California depreciation - STU-PRINTER FTB3885A.STU-PRINTER
California depreciation - STU-CAMERA FTB3885A.STU-CAMERA
California depreciation - STU-WORKST FTB3885A.STU-WORKST

Studio equipment: elect out of special depreciation; regular 5-year MACRS. Fed +10,245 · CA -260

Special depreciation allowance (100%) F4562-C.14
MACRS 5-year property placed in service 2025 F4562-C.19a
Total depreciation (Schedule C) F4562-C.22
Depreciation and section 179 SchC.13
Total expenses SchC.28
Tentative profit SchC.29
Net profit SchC.31
Net profit from Schedule C SchSE.2
Net earnings (x 92.35%) SchSE.4a
Total net earnings SchSE.6
Social security portion SchSE.10
Medicare portion SchSE.11
Self-employment tax SchSE.12
Deduction for one-half of SE tax SchSE.13
SEP deduction Sch1.16
Deductible part of self-employment tax Sch1.15
Business income (Schedule C) Sch1.3
Additional income Sch1.10
Adjustments to income Sch1.26
Additional income from Schedule 1 F1040.8
Total income F1040.9
Adjustments to income F1040.10
Adjusted gross income F1040.11
QBI - Lindqvist Studio (Schedule C) F8995.2.1
QBI component - Lindqvist Studio (Schedule C) (W-2 wages 0, UBIA 38,000) F8995.15.1
Total QBI component F8995.27
Taxable income before QBI deduction F8995.33
Income limitation F8995.36
QBI deduction F8995.39
Qualified business income deduction F1040.13
Total deductions F1040.14
Taxable income F1040.15
Tax (Schedule D tax worksheet) F1040.16
Taxable income (1040 line 11 minus line 14) F6251.1
Alternative minimum taxable income F6251.4
AMTI minus exemption F6251.6
Tentative minimum tax before credit F6251.7
Tentative minimum tax F6251.9
Regular tax minus foreign tax credit F6251.10
Alternative minimum tax F6251.11
Alternative minimum tax Sch2.1
Total (Part I) Sch2.3
Amount from Schedule 2, line 3 F1040.17
Add lines 16 and 17 F1040.18
Modified AGI F8812.1
Phase-out reduction F8812.11
Credit after phase-out F8812.12
Child tax credit / credit for other dependents F1040.19
Tax after nonrefundable credits F1040.22
Self-employment tax Sch2.4
Self-employment income F8959.8
Additional Medicare tax on self-employment income F8959.13
Total additional Medicare tax F8959.18
Additional Medicare tax Sch2.11
Modified AGI F8960.13
Total other taxes Sch2.21
Other taxes from Schedule 2, line 21 F1040.23
Total tax F1040.24
Amount you owe F1040.37
Business income (Schedule C) - federal SchCA540NR.12.A
Adjustments to income (half SE tax, SEP, SE health insurance) SchCA540NR.26.D
Adjustments to income - California amount SchCA540NR.26.E
Federal AGI F540NR.13
Total AGI using California law F540NR.17
Total taxable income F540NR.19
Tax on total taxable income F540NR.31
California AGI F540NR.32
Deduction percentage (line 32 / line 17) F540NR.34
California taxable income F540NR.35
CA tax rate (line 31 / line 19) F540NR.36
California tax before exemption credits F540NR.37
Prorated exemption credits F540NR.39
Regular tax F540NR.40
Total tax F540NR.64
Overpaid tax F540NR.97

Treat the 11,000 HVAC replacement at 1450 Fremont Way as an improvement depreciated over 27.5 years instead of a repair. Fed +3,633 · CA +896

Depreciation - 1450 Fremont Way F4562-E.total-A
Repairs - property A SchE.14A
Depreciation - property A SchE.18A
Total expenses - property A SchE.20A
Income or (loss) - property A SchE.21A
Rental activities with net loss F8582.1b
Combine lines 1d and 3d F8582.4
Deductible rental loss after limitation - property A SchE.22A
Total rental real estate income or (loss) SchE.26
Total income or (loss) SchE.41
Rental real estate, partnerships, S corporations (Schedule E) Sch1.5
Additional income Sch1.10
Additional income from Schedule 1 F1040.8
Total income F1040.9
Adjusted gross income F1040.11
Taxable income before QBI deduction F8995.33
Income limitation F8995.36
Taxable income F1040.15
Tax (Schedule D tax worksheet) F1040.16
Taxable income (1040 line 11 minus line 14) F6251.1
Alternative minimum taxable income F6251.4
AMTI minus exemption F6251.6
Tentative minimum tax before credit F6251.7
Tentative minimum tax F6251.9
Regular tax minus foreign tax credit F6251.10
Alternative minimum tax F6251.11
Alternative minimum tax Sch2.1
Total (Part I) Sch2.3
Amount from Schedule 2, line 3 F1040.17
Add lines 16 and 17 F1040.18
Modified AGI F8812.1
Phase-out reduction F8812.11
Credit after phase-out F8812.12
Child tax credit / credit for other dependents F1040.19
Tax after nonrefundable credits F1040.22
Rental real estate, partnerships, S corporations (Schedule E) F8960.4a
Total investment income F8960.8
Net investment income F8960.12
Modified AGI F8960.13
Net investment income tax F8960.17
Net investment income tax Sch2.12
Total other taxes Sch2.21
Other taxes from Schedule 2, line 21 F1040.23
Total tax F1040.24
Amount you owe F1040.37
Rental real estate, partnerships, S corporations - federal SchCA540NR.17.A
Rental real estate, partnerships, S corporations - total using CA law SchCA540NR.17.D
Rental real estate, partnerships, S corporations - California amount SchCA540NR.17.E
Total income using CA law SchCA540NR.22.D
Total California income SchCA540NR.22.E
Federal AGI F540NR.13
Total AGI using California law F540NR.17
Total taxable income F540NR.19
Tax on total taxable income F540NR.31
California AGI F540NR.32
Deduction percentage (line 32 / line 17) F540NR.34
California taxable income F540NR.35
CA tax rate (line 31 / line 19) F540NR.36
California tax before exemption credits F540NR.37
Prorated exemption credits F540NR.39
Regular tax F540NR.40
Total tax F540NR.64
Overpaid tax F540NR.97

Take the standard deduction instead of itemizing. Fed +12,306 · CA 0

Itemized deductions F1040.12
Qualified business income deduction F1040.13
Total deductions F1040.14
Taxable income F1040.15
Tax (Schedule D tax worksheet) F1040.16
Taxable income (1040 line 11 minus line 14) F6251.1
Taxes from Schedule A line 7 F6251.2a
Alternative minimum taxable income F6251.4
AMTI minus exemption F6251.6
Tentative minimum tax before credit F6251.7
Tentative minimum tax F6251.9
Regular tax minus foreign tax credit F6251.10
Alternative minimum tax F6251.11
Alternative minimum tax Sch2.1
Total (Part I) Sch2.3
Amount from Schedule 2, line 3 F1040.17
Add lines 16 and 17 F1040.18
Tax after nonrefundable credits F1040.22
Total tax F1040.24
Amount you owe F1040.37

Use the annualized income installment method for the underpayment penalty. Fed 0 · CA 0