|7 min

DIY Accounting vs Hiring an Accounting Firm: Which Is Worth It?

Compare the pros and cons of DIY accounting versus hiring an accounting firm for SME owners. Cost, risk, time investment, and how to choose what's right for your business.

DIY Accounting vs Hiring an Accounting Firm: Which Is Worth It?

Should SME Owners Do Their Own Accounting or Outsource?

Almost every SME owner faces this question, especially when starting out with a limited budget. But making the wrong choice can cost more than you save. Let's compare the options clearly.

DIY Accounting — Pros

1. Save Money

  • No monthly service fees (typically 3,000-15,000 baht/month)
  • Invest only in accounting software (some are free, like Wave or ZipBooks)
  • 2. Instant Access to Numbers

  • No waiting for reports from an accounting firm
  • Better understanding of your own business finances
  • 3. Full Control

  • Manage data yourself without depending on others
  • Adjust workflows as needed
  • DIY Accounting — Cons

    1. Time-Consuming

  • Business owners spend 10-20 hours/month on accounting tasks
  • That time could be spent generating revenue or serving clients
  • 2. High Risk

  • Errors can result in Revenue Department penalties (1.5% surcharge per month)
  • Incorrect tax filings may lead to additional payments + surcharges
  • Missing new regulations that affect your business
  • 3. No Expert Advice

  • No professional tax planning guidance
  • You may pay more tax than necessary
  • Lack of expert perspective on business finances
  • Hiring an Accounting Firm — Pros

    1. Legal Compliance

  • Experts ensure compliance with TFRS standards
  • Reduced risk of Revenue Department audits
  • Always updated on new tax laws
  • 2. Tax Savings

  • Legal tax planning to minimize your tax burden
  • Knowledge of all available deductions
  • Many business owners save more in taxes than the service fee costs
  • 3. Time Savings

  • Let business owners focus on what they do best — earning revenue and serving clients
  • No need to learn complex accounting and tax laws
  • 4. Credible Financial Statements

  • Banks trust professionally prepared statements for loan applications
  • Investors require audited financial statements
  • Hiring an Accounting Firm — Cons

    1. Cost

  • Monthly fees: 3,000-15,000 baht (depending on transaction volume)
  • Year-end closing: 5,000-20,000 baht
  • Audit fee: 8,000-30,000 baht annually
  • 2. Must Choose Carefully

  • Low-quality firms can cause more damage than good
  • Verify licenses and experience
  • 3. May Not Understand Your Business

  • General firms may not understand niche industries
  • Find a firm experienced with your type of business
  • Cost Comparison

    ItemDIYOutsourced |------|-----|-----------| Monthly cost0-2,000 baht (software)3,000-15,000 baht Time spent10-20 hrs/month1-2 hrs/month (sending documents) Penalty riskHighLow Tax planningNoneIncluded (significant savings) CredibilityLowHigh Time lost120-240 hrs/year12-24 hrs/year

    Which Should You Choose?

    DIY is suitable for:

  • Low-income freelancers (under 500,000 baht/year)
  • Businesses not yet registered as a company
  • People with existing accounting knowledge
  • An accounting firm is suitable for:

  • Registered companies (law requires a certified auditor)
  • Businesses with revenue over 1.8 million baht/year (must register for VAT)
  • Owners who want to focus on core business
  • Growing businesses that need serious tax planning
  • Summary

    For registered SMEs, hiring an accounting firm is more cost-effective in the long run. Beyond legal compliance, professional tax planning often saves many times more than the service fee. Plus, business owners get their time back to focus on what actually generates revenue.

    Need Expert Advice?

    Free consultation, no cost, no obligation — Thinkfirst team is ready to help

    Get Great Articles Delivered to Your Inbox

    Subscribe for free accounting, tax, and business finance updates. No spam.

    We respect your privacy. Unsubscribe at any time.

    Ready to Grow Your Business with Confidence?

    Talk to our experts today. Free of charge, no obligation.

    We respond within 24 hours | Mon-Fri 09:00-18:00