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OnulTax

About this app

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The Boss's Real After-Tax Salary

Today's Tax v2.0

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Office workers see their after-tax salary deposited into their bank accounts every month.

But what about business owners?

Sales come in every day, but after deducting VAT, Comprehensive Income Tax, National Pension, and Health Insurance,

you won't know 'how much is actually left in your hand' until the Comprehensive Income Tax in May is over.

That is why we launched this.

An app that tells you the boss's real after-tax salary every day.

[Check Your Real Salary Every Day]

Just enter your daily sales and purchases.

Today's Tax calculates it for you automatically.

- Automatic estimation of VAT by industry (General/Simplified)

- Monthly accumulated Comprehensive Income Tax

- National Pension, Health Insurance, Long-term Care

- Automatic determination of Simple/Standard Expense Ratios

- Automatic application of deemed input deduction for restaurants and tax credit for card sales

"OO million won today, accumulated OO million won this month" at the top of the screen

This is your real monthly salary,사장님.

[AI Boss Assistant] (v2.0 New)

Consult via chat on anything related to tax or business.

- "Can I claim a deduction for this purchase?"

- "The rent seems too expensive..."

- "How do I create employee pay stubs?"

We analyze your business data and provide answers.

[AI Business Report] (v2.0 New)

We analyze your business once a day.

- Improvements and deteriorations compared to yesterday

- Cost efficiency check

- Preview next month's estimated taxes

[AI Personalized News Briefing] (v2.0 New)

We summarize policy and tax news tailored to your industry every day.

- Policy changes affecting your business

- Information on newly introduced subsidies and government funding

- Brief summary of the key points, one-paragraph briefing

[Import Data from Hometax] (v2.0 New)

Simply download Excel files from Hometax.

- Credit card sales data

- Cash receipt sales

- Purchase tax invoices

Automatically organized all at once.

[Tax Account] (v2.0 New)

Accumulate in advance every month and deduct all at once during tax filing.

- 'Recommended to save OO million won this month'

- Set your record balance for peace of mind during tax season

[Employee Payroll System]

- Attendance + Work Schedule

- Automatic calculation of 4 major insurances and taxes

- Supports daily, hourly, and monthly wage workers

[Restaurant Margin Calculator] (v2.0 New)

- Margin analysis by menu

- Comparison by Dine-in / Takeout / Delivery channels

- Allocation of ingredients, labor costs, rent, and advertising costs

[Security & Backup] (v2.0 New)

- Lock apps with Face ID / Fingerprint / PIN

- Safe device changes with cloud backup

[Accuracy]

We have internally verified the results of tax law application using 100 cases. Reflecting 2026 Tax Laws and Rates:

- Restaurant Deemed Purchase 9/109 Preferential Deduction

- Credit Card Sales Slip Issuance Tax Credit (1.3% until Dec. 31, 2026)

- Electronic Tax Invoice Issuance Tax Credit

- National Pension 9.5%, Long-term Care 13.14%

- Refinement of Simplified/Standard Expense Ratio Thresholds by Industry

* This app provides estimated values ​​to assist in decision-making.

Verification by a tax professional is recommended for actual tax filing.

[Supported Industries]

Approximately 80 industries including Restaurants, Cafes, Retail, Wholesale, Services, Professional Services,

Accommodation, Transportation, Construction, Manufacturing, IT, Real Estate, Beauty,

Education, Medical, Pet Care, Events, etc.

Feedback is always welcome.

[e-mail]

What’s new

v2.0 - AI가 함께하는 사장님의 매일

[AI 기능 신규]
- AI 사장님 비서 (세무, 장사 채팅 상담)
- AI 장사 보고서 (매일 자동 분석)
- AI 맞춤 뉴스 (업종별 요약)
- AI 불공제 매입 분석

[새 기능]
- 홈택스 자료 자동 가져오기
- 세금통장 (적립, 차감 관리)
- 음식점 마진 계산기
- 클라우드 백업
- 앱 잠금 (생체인증)

[정확도]
- 세법 기준 100개 케이스 검증
- 2026년 4대보험 요율 반영
- 신용카드 발행, 전자세금계산서 공제 신설

전 기능 무료.