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In Malaysia, a sole proprietor’s business profit is taxed as part of the owner’s personal income, at the progressive rates for individuals. The owner declares business income and allowable expenses in Form B, which is generally due by 30 June of the following year, and must keep business records for seven years. Getting the basics right avoids penalties and helps you pay only the tax you owe.
This guide explains how sole proprietor tax works in plain English. It is general information, not tax advice.
Key takeaways
- A sole proprietorship is not a separate taxpayer; profits are taxed as the owner’s personal income.
- Individuals with business income file Form B, generally due by 30 June.
- Expenses wholly and exclusively incurred to produce business income are generally deductible.
- Personal expenses, such as private meals or family travel, are not deductible.
- Keep records for seven years, as required under Malaysian tax law.
How a sole proprietorship is taxed
A sole proprietorship registered with the Companies Commission of Malaysia (SSM) is owned by one person, and the business and owner are the same taxpayer. The business profit is added to the owner’s other income, such as employment or rental income, and taxed at the individual progressive rates after reliefs.
This is different from a company (Sdn Bhd), which is a separate legal entity taxed at corporate rates.
The progressive rates rise as chargeable income rises.
Which form to file and when
| Situation | Form | General deadline |
|---|---|---|
| Individual with business income (resident) | Form B | 30 June of the following year |
| Individual without business income (resident) | Form BE | 30 April of the following year |
The Inland Revenue Board of Malaysia (LHDN) may allow a short grace period for e-filing. Check LHDN’s current filing programme each year rather than relying on last year’s dates.
Working out business profit
Your taxable business profit starts with your accounting profit: income minus expenses. You then make tax adjustments, adding back expenses that are not allowed and claiming capital allowances on qualifying assets instead of depreciation. The result is your adjusted business income. Our From Profit to Taxable Income session explains these adjustments step by step.
Which expenses are allowable?
As a general rule, an expense is deductible if it is wholly and exclusively incurred in producing your business income.
| Usually allowable | Usually not allowable |
|---|---|
| Rent for business premises | Personal and family expenses |
| Staff salaries and statutory contributions | Income tax payments |
| Business utilities and internet | Fines and penalties |
| Advertising and marketing | Capital purchases (claim capital allowances instead) |
| Professional fees related to the business | Private use portion of mixed expenses |
Where an expense has both business and personal use, such as a phone or car, only the business portion can be claimed. Keep evidence to support the split.
Paying tax during the year
Individuals with business income may be required to pay tax in instalments during the year under the CP500 scheme, based on LHDN’s estimate. Instalments are offset against your final tax when you file. If your income changes significantly, LHDN has procedures for revising the instalment amount.
Records you must keep
Malaysian tax law requires taxpayers to keep records for seven years. For a sole proprietor, this includes sales invoices, receipts, bank statements, contracts and records of assets. Good records make filing easier and support your figures if LHDN asks questions. Our Records and Digital Compliance session covers what to keep and how to stay organised digitally.
Income from online platforms and e-wallets
Many sole proprietors now earn through online marketplaces, social media and e-wallets. This income is business income like any other and must be declared. Keep platform statements and payout records, and reconcile them with your bank account at least monthly so nothing is missed at filing time.
Malaysia is also phasing in e-invoicing for businesses, with timelines that depend on turnover. Check LHDN’s latest e-invoicing guidelines to see whether and when the requirements apply to you.
Common mistakes to avoid
- Mixing personal and business spending in one bank account.
- Claiming personal expenses as business costs.
- Missing the filing deadline and incurring penalties.
- Not keeping receipts for expenses.
- Forgetting to declare income received through e-wallets or online platforms.
A separate business bank account is one of the simplest ways to keep things clear.
Getting the basics right
Tax rules change, and individual circumstances vary. Use this guide to understand the framework, then check LHDN’s latest guidance or speak to a licensed tax agent about your specific situation. If you want to understand your own position before you file, our Calculating, Filing and Managing Tax session walks through calculating, filing and managing tax.
Frequently asked questions
Do sole proprietors pay company tax in Malaysia?
No. A sole proprietor’s business profit is taxed as personal income at individual rates.
What is the deadline for Form B?
Form B is generally due by 30 June of the year after the income year. Check LHDN’s annual filing programme for the current year.
Can I claim my phone bill as a business expense?
You can generally claim the business portion of a phone bill if you can support the split between business and personal use.
How long must I keep business records?
Seven years, under Malaysian tax law.
Do I need a tax agent?
It is not compulsory, but a licensed tax agent can help if your affairs are complex.
Want to understand your own tax position? Our Taxation for Sole Proprietors, Influencers & Enterprises course, led by tax professional Megat Zahid Amirnuddin, walks through each step. See our investment courses and upcoming sessions or contact us.
This article is for educational purposes only and is not investment, tax or legal advice. Consider your own circumstances and seek licensed professional advice before making financial decisions.