Business Details
29 Years
experience
Your Trusted Accounting and Financial Advisers in Mawson Lakes
Since 1997, Nationwide Business Solutions have been dedicated to empowering businesses and individuals through expert financial guidance. Our team of certified professionals brings decades of combined experience in tax, accounting, financial planning, and mortgage broking, with a focus on delivering tailored solutions that align with evolving client needs. As a family-owned practice based in Mawson Lakes, South Australia, we prioritise proactive service, fixed-fee pricing, and timely execution to ensure clients receive consistent, reliable support.Our commitment to excellence is demonstrated through our track record of helping over 3,500 clients achieve financial clarity and growth while maintaining transparency and ethical standards. By combining technical expertise with a client-first approach, we aim to be the trusted partner for all financial matters.
Services
Tax Services
Financial Planning
Bookkeeping
Home Loans
Car Loans
Digital Marketing
Superannuation
Personal Insurances
Wealth Management
Mortgage Broking
Details
- Year established: 1997
Highlights and features
- We offer fixed-fee pricing for transparent budgeting.
- Our team returns phone calls within 6 hours.
- Proactive tax planning to legally reduce liabilities.
- 25+ years of experience serving Australian businesses.
- Integrated approach to accounting, finance, and wealth management.
What people say
Wealth of knowledge
Fantastic dealings
Methodical and professional
Maximum refunds
Stress-free transitions
Services
Tax Services
We provide comprehensive tax preparation for individuals and businesses, ensuring compliance while maximising refunds. Our team handles income tax, ATO interest penalties, and business tax returns with expertise. Clients benefit from proactive planning to legally reduce liabilities and fixed-fee pricing for transparency.
Financial Planning
Our financial planning covers superannuation, retirement strategies, and personal insurance to secure long-term goals. We tailor investment advice to individual needs, focusing on asset protection and wealth growth. Services integrate tax efficiency with risk management for holistic financial security.
Home Loans
We assist with home loan applications, refinancing, and competitive rate negotiations. Our brokers access thousands of products to find suitable financing solutions. Services include first-home deposit guidance, package deals, and cashback options to save clients time and money.
Bookkeeping
Our bookkeeping services manage cash coding, GST/PAYG compliance, and financial reporting. We ensure accurate records for informed business decisions. Clients receive personalised profit-and-loss statements and balance sheets to track performance and meet ATO obligations.
Digital Marketing
We offer SEO, website development, and social media advertising tailored to small-to-medium businesses. Our evidence-driven framework focuses on lead generation and brand visibility. Services aim to simplify marketing complexities while delivering measurable results for sustainable growth.
People
Steven Tsimopoulos
Chief Executive Officer & Accountant
With over 25 years of experience, Steven founded the practice in 1997 and leads a team dedicated to client-centric financial solutions. He specialises in strategic accounting and business advisory services.
Yianni Tsimopoulos
Managing Director & Accountant
Recognised for expertise in personal and business finance, Yianni provides tailored advice on tax, wealth creation, and business growth. His approach combines technical knowledge with genuine client relationships.
James Tsimopoulos
Director & Mortgage Broker
James specialises in mortgage broking, helping clients navigate home loans, refinancing, and investment property financing with a focus on competitive rates and personalised service.
Christopher Tsimopoulos
Consultant
Christopher offers consultancy services, leveraging industry experience to support clients in financial planning and business strategy within the practice's framework.
Vessy Tsimopoulos
Office Manager
Vessy oversees daily operations, ensuring seamless client interactions and administrative efficiency while maintaining the practice's commitment to exceptional service standards.
Questions
How can Nationwide help reduce my tax liability?
We use proactive tax planning strategies to identify legal deductions and credits, ensuring you pay only your fair share while maximising refunds.
Do you offer services for small businesses?
Yes, we specialise in small business accounting, including tax returns, bookkeeping, and growth strategies tailored to your industry needs.
What areas do you service?
While based in Mawson Lakes, South Australia, we provide services to clients nationwide through digital and in-person consultations.
Can I switch accountants easily?
Yes, we streamline transitions with minimal disruption, ensuring all financial records and processes are seamlessly transferred to our team.
What mortgage options are available?
We offer home loans, refinancing, and investment property financing with access to thousands of products to suit your financial goals.
How do you ensure financial plan effectiveness?
Our plans integrate tax efficiency, risk management, and investment strategies tailored to your personal and business objectives for long-term success.
Reviews (4)
Kardo Sarzali
Sep 12, 2021
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Nationwide is the most experienced people in the business, we have been clients as business and personal. Satisfy feeling wonderful all time. One sentence they now their business
Liam Sullivan
Jan 19, 2021
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Nationwide Accounting
Keep a close eye on their work or, better still, find another accountant. I would not recommend these guys at all. I used Nationwide accounting for my 18/19 tax return and was disappointed to find my return was much lower than I expected but trusted that the details I provided had been used. I sought out a different accountant for my 19/20 tax return based on the fact that I knew I shouldve received a higher return and general dissatisfaction with Nationwide's service. It was the new, competent accountant that picked up the glaring error that Nationwide had committed
Keep a close eye on their work or, better still, find another accountant. I would not recommend these guys at all. I used Nationwide accounting for my 18/19 tax return and was disappointed to find my return was much lower than I expected but trusted that the details I provided had been used. I sought out a different accountant for my 19/20 tax return based on the fact that I knew I shouldve received a higher return and general dissatisfaction with Nationwide's service. It was the new, competent accountant that picked up the glaring error that Nationwide had committed
Pavlos Dimitropoulos
Oct 17, 2020
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Nationwide's staff are friendly and genuinely interested in the best outcome for their clients as demonstrated in their care and attention to detail to my personal finances over the past 10yrs. Yianni and the team are highly skilled and always have their clients best interests in mind. I highly recommend them.
Nico Perez
Sep 19, 2019
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Going in to see them, everything seemed to go well and would've given them a high rating if not for what happened about 2 weeks later. My return hadn't come in yet so I checked the status on myGov and it showed that my tax hadn't been lodged so I called the ATO and they said they haven't received it and to call my tax agent for them to contact the ATO which I did and received a call back ftom Nationwide, after they spoke with the ATO saying it was lodged after my appointment with them and everything is now sorted and that I should receive my return soon as it had been almost 2 weeks. The day after
