Choosing a professional for your tax and accounting needs is one of the most important decisions you can make. Take the time to look at our qualifications and expertise before you make a decision. Bottom Line Control is a full service accounting and taxation firm. If you’re starting a business, selling or buying assets, applying for finance, or need a proactive accountant, our firm can help with setting up an appropriate business or investment structure, accounting, bookkeeping, taxation and tax planning.