How to Set Up Sub-Accounts for Taxes and Reserves
Create dedicated business sub-accounts to automate tax withholding and build operating reserves with proper allocation percentages.
- Calculate your target allocations. Determine tax withholding at 25-35% of gross revenue depending on your tax bracket and entity type. Calculate reserve target as 3-6 months of fixed expenses plus variable costs. S-Corps typically need 25-30% for taxes; sole proprietorships need 30-35%.
- Open dedicated sub-accounts. Open separate business savings accounts for taxes and reserves at your existing business bank. Most business banks offer multiple sub-accounts under one master account with no additional fees. Keep these accounts separate from your operating checking account.
- Set up automatic transfers. Schedule weekly or bi-weekly transfers from your main operating account to sub-accounts. Transfer your calculated tax percentage immediately when revenue hits your account. Transfer to reserves until you hit your 3-6 month target, then reduce to maintenance amounts.
- Track and adjust quarterly. Review actual tax liability against withheld amounts each quarter. Adjust transfer percentages based on profit margins and seasonal revenue patterns. If reserves exceed 6 months of expenses, consider moving excess to higher-yield accounts or investments.