How Hawker Stall Owners and Sole Proprietors Can Stay IRAS-Ready Without an Accountant

Running a hawker stall or a one-person business in Singapore comes with a particular kind of tax pressure. You're not a big company with an accounting department. You might deal mostly in cash. And IRAS doesn't really adjust its expectations based on the size of your operation — the obligations are the same whether you're running a cai fan stall in Toa Payoh or a freelance graphic design business from your HDB flat.

The good news: staying IRAS-ready doesn't require an accountant. It requires consistent habits, the right records, and an understanding of what IRAS actually needs from you. This guide covers all of that in plain language.

What IRAS Expects from Sole Proprietors

As a sole proprietor, your business income is declared on your personal income tax return (Form B or Form B1). IRAS doesn't treat you and your business as separate entities — your business profits are your personal income. That simplifies things in some ways, but it also means you're personally liable for taxes on every dollar the business earns.

Income tax filing is done through myTax Portal. The deadline is 15 April for paper filing, or 18 April if you e-file — and almost everyone e-files these days.

Every year, you're required to:

• Declare your total business revenue (turnover)
• Declare your allowable business expenses
• Report your net profit (revenue minus expenses)
• Pay income tax on that net profit at your personal tax rate

If your annual revenue exceeds S$500,000, IRAS requires you to submit a certified statement of accounts (a P&L statement and balance sheet prepared or reviewed by a qualified person). Below that threshold, a simplified two-line statement — just total revenue and net profit — is acceptable for most purposes, though IRAS can still ask for your underlying records.

What Records Do You Actually Need to Keep?

This is where many sole proprietors underestimate what IRAS wants. "Records" doesn't mean just your bank statements. IRAS expects you to maintain source documents that support every number in your tax return.

Revenue Records

For a cash-based business like a hawker stall, this is trickier than it sounds. You don't issue invoices for every plate of char kway teow. But you still need to track your daily takings. The simplest approach:

• Keep a daily cash record — a simple notebook or spreadsheet recording how much you took in each day
• Keep supplier invoices and cross-reference them against your revenue (your cost of goods is roughly proportional to revenue — wildly inconsistent ratios raise flags)
• If you use a point-of-sale system or accept PayNow, keep your transaction reports

Expense Records

For every business expense you want to claim, you need supporting documentation:

• Receipts from suppliers (ingredients, packaging materials, equipment)
• Invoices for services (stall maintenance, delivery services)
• Rental agreements and payment receipts for your stall or workspace
• Utility bills if your stall pays for electricity or gas separately
• CPF contribution records if you employ staff

Keep these physical documents or scan them — whichever you're more likely to actually do consistently. A receipt photo on your phone is far better than no record at all.

The 5-Year Rule: Don't Underestimate It

IRAS requires all businesses, including sole proprietors, to retain records for a minimum of 5 years from the relevant Year of Assessment. If IRAS decides to audit your 2022 return in 2027, you need to be able to produce your records from that year.

For physical records, this means not throwing away receipts. For digital records, it means backing up your files. A hard drive failure two years before an audit is not an excuse IRAS will accept.

One practical system: at the end of each financial year, organise your records into a folder (physical or digital) labelled by year and keep it stored somewhere safe. You don't need a sophisticated filing system — just one that you can actually retrieve from in 5 years' time.

Understanding What You Can Deduct

One of the biggest areas where sole proprietors leave money on the table is deductions. Many people only claim the obvious ones (cost of goods, rent) and miss legitimate deductions that reduce their taxable income.

Allowable Deductions for Hawker Stalls and Sole Proprietors

Direct costs:

• Ingredients and raw materials
• Packaging materials
• Stall rental and hawker centre fees
• Gas, electricity, and water costs related to your stall

Operating costs:

• Employee wages, CPF contributions, SDL
• Cleaning supplies and hygiene products for the stall
• Equipment maintenance and repairs
• Food delivery platform commissions (GrabFood, Foodpanda, etc.)
• Marketing costs — flyers, social media advertising

Professional fees:

• Accounting or bookkeeping fees if you hire help
• Business registration and licence renewal fees

What You Cannot Deduct

Not everything is deductible. The general rule is that expenses must be wholly and exclusively incurred in the production of income. Specifically, you cannot deduct:

• Personal expenses (your own food, family meals)
• Capital expenditure (buying new equipment — though you may claim capital allowances separately)
• Penalties and fines
• Expenses with no business purpose

Home-Based Business Deductions

If you run a home-based business (many freelancers and sole proprietors do), you can claim a portion of your home expenses. IRAS allows this, but it must be a genuine apportionment — typically based on the floor area used exclusively for business as a percentage of total home area, or the hours of business use as a proportion of total usage.

For home internet, a typical claim might be 60–70% of the monthly bill if the business genuinely uses it significantly. For electricity, a pro-rated amount based on usage. Be conservative and consistent — IRAS compares year-on-year, so large swings in home office claims attract attention.

Managing a Cash Business: Practical Tips

Hawker stalls and market vendors run heavily on cash. Cash businesses aren't inherently suspicious to IRAS — but they do require more deliberate record-keeping because there's no automatic digital trail.

Daily Cash Reconciliation

The best habit you can build: count your cash at the end of each trading day and record it. Note the date, opening float, cash received during the day, expenses paid in cash, and closing balance. This takes about 5 minutes and creates an auditable daily record.

Keep Business and Personal Cash Separate

Mixing business and personal money is one of the fastest ways to create accounting problems. Even if you're a sole proprietor, maintain a dedicated bank account or cash float for the business. When you take money from the business for personal use, record it as a drawing — it keeps your books clean.

Track Every Supplier Purchase

When you buy ingredients from Tekka Market or a wholesale supplier, get a receipt. Many hawker suppliers will give you a handwritten chit — that counts. Keep it. Your total purchases should be reconcilable against your declared cost of goods sold. If IRAS sees a revenue figure that seems implausible given your declared costs, that's a red flag.

Simple Systems That Actually Work

You don't need complicated software to stay IRAS-ready. You need something you'll actually use.

The Envelope Method (for very small operations)

At the end of each week, put all your receipts in a dated envelope. At the end of each month, total them up and record the categories. At the end of the year, tally everything for your tax return. Old school — but it works.

Spreadsheet (for slightly more volume)

A simple Google Sheet with columns for date, description, category, amount, and a running total covers most sole proprietor needs. One tab for income, one for expenses. Takes 10 minutes a week to update if you do it consistently.

Purpose-Built Apps (for efficiency)

If you're handling more than a handful of transactions a week, an app that auto-categorises your spending and tracks your P&L in real time saves significant time. Tools like app.kevinchia.sg are built for exactly this — Singapore sole proprietors who want accurate P&L tracking without having to learn accounting software. You upload your receipts, it categorises them, and you can see your profit picture at any time.

What Happens During a Tax Audit?

IRAS conducts compliance reviews and audits of sole proprietors, particularly those with year-on-year inconsistencies in declared income or expenses. If you're selected:

• IRAS will typically write to you requesting specific documents (invoices, bank statements, receipts)
• You'll have a deadline to respond — usually 21 to 30 days
• If you have your records organised, this is annoying but manageable
• If you don't, the process becomes significantly more stressful and potentially more expensive

The single best preparation for an audit is clean, consistent record-keeping throughout the year. Audits are rarely the result of one big error — they're usually triggered by patterns that look inconsistent, like gross margins that shift dramatically year-over-year, or income figures that don't match lifestyle indicators.

Tax Season Without an Accountant

Filing your own income tax as a sole proprietor is absolutely doable if you've kept decent records. The process through myTax Portal is reasonably straightforward — IRAS pre-fills employment income and CPF contributions, and you add your business income and expenses manually.

The key is having your numbers ready before you log in: total revenue, total allowable expenses, and net profit. If you've been tracking these throughout the year with a spreadsheet or an app, this becomes a 30-minute exercise rather than a multi-day project.

Frequently Asked Questions

Do sole proprietors file taxes separately from their business?

No. IRAS doesn't treat you and your business as separate entities. Business income is declared on your personal income tax return, Form B or Form B1, and you're personally liable for tax on every dollar the business earns.

When is the income tax filing deadline for sole proprietors?

15 April for paper filing, or 18 April if you e-file. Almost everyone e-files through myTax Portal these days.

Do I need a certified P&L statement as a sole proprietor?

Only if your annual revenue exceeds S$500,000, in which case a certified P&L and balance sheet is required. Below that, a simplified two-line statement of total revenue and net profit is acceptable, though IRAS can still request your underlying records.

How long must sole proprietors keep business records?

At least 5 years from the relevant Year of Assessment. This applies to both physical receipts and digital records, so back-ups matter as much as not throwing paper away.

Can I deduct home office expenses for a home-based business?

Yes, if it's a genuine apportionment, typically based on the floor area used exclusively for business or the hours of business use as a proportion of total usage. Be conservative and consistent, since IRAS compares year-on-year and large swings in home office claims attract attention.