Self Assessment with Multiple Income Sources

Many people earn income from more than one source — self-employment, rental property, employment, dividends, and savings. Your Self Assessment return brings all of these together to calculate your total tax liability.

How Multiple Incomes Are Taxed

All your income is added together, and tax is calculated on the total. Income is taxed in a specific order:

1. Non-savings income (employment, self-employment, property)
2. Savings income
3. Dividend income

Your personal allowance (£12,570) is applied first. Then each type of income fills up the tax bands in order.

Reporting Each Source

Each income source has its own section on the Self Assessment return:

• Self-employment: Self-employment supplementary pages (one set per business)
• Property: Property income supplementary pages
• Employment: Employment pages (if not fully covered by PAYE)
• Savings: Interest section
• Dividends: Dividend section
• Foreign income: Foreign supplementary pages

The Marginal Rate Impact

Additional income sources are taxed at your marginal rate. If your PAYE salary already uses up your personal allowance and basic rate band, any self-employment or rental income is taxed at 40% or more.

Practical Tips

• Keep records for each income source separately
• Use dedicated bank accounts where possible
• Track each source throughout the year, not just at filing time
• Accounted handles multiple income sources and shows your combined tax position

MTD is coming. Accounted is already compliant. Start free and be ready before the deadline.